Supporting up to 1500W motor drive, NSUC1602 from NOVOSENSE easily addresses high current challenges
  NOVOSENSE announced the launch of NSUC1602, a high-integration embedded motor control IC, following its introduction of NSUC1610, a small motor driver SoC for automotive applications in early 2023. Compared to the single-chip NSUC1610 that integrates LIN and MOS power stages, NSUC1602 as a SoC, supports an external independent power MOSFET design. This innovative approach enables it to effortlessly address applications requiring higher current.  In addition, NSUC1602 integrates three half-bridge pre-drivers, expanding the motor control power range to 20W-1,500W. This enhancement not only further optimizes the control performance of BLDC motors, but also better meets the requirements of applications with higher power output. In the realm of xEV, thermal management systems are particularly complex and crucial for ensuring overall vehicle performance. These systems are responsible for managing the temperatures of electric motors, power electronics, and battery, while ensuring optimal comfort for passengers in the cabin. An efficient thermal management system not only helps extend battery life, but also prevents the risks of thermal runaway caused by overheat, thereby safeguarding safe operation of xEVs.  In the realm of xEV, thermal management systems are particularly complex and crucial for ensuring overall vehicle performance. These systems are responsible for managing the temperatures of electric motors, power electronics, and battery, while ensuring optimal comfort for passengers in the cabin. An efficient thermal management system not only helps extend battery life, but also prevents the risks of thermal runaway caused by overheat, thereby safeguarding safe operation of xEVs.  To achieve these objectives, thermal management systems rely heavily on precise control of various actuators, such as electric compressor, electronic water pump, oil pump, fan motors, valves, and HVAC control modules. The motors driving these actuators typically need high power output to ensure stable and precise performance under a wide range of operating conditions, thereby meeting the strict requirements of efficient and accurate control for xEV thermal management systems.  NSUC1602, a highly integrated embedded motor control IC from NOVOSENSE, plays a pivotal role in managing key actuators in xEVs with its exceptional integration features and powerful motor control algorithms. This IC integrates an ARM® Cortex®-M3 core and efficient three-phase pre-driver circuits, and supports more advanced and complex motor control algorithms, such as FOC sensored or sensorless vector control. These advanced algorithms significantly enhance the precision and efficiency of temperature management for motors and electronic devices, providing robust technical support for intelligent three-phase brushless DC motor control applications, including automotive electronic cooling fans and electronic water pumps. Additionally, NSUC1602 incorporates a series of optimization designs to significantly improve overall system efficiency, ensuring stable performance under high-load operating conditions.  NSUC1602 meets the reliability requirements of AEC-Q100 Grade 0, and operates stably at extreme temperatures (up to 175°C wafer junction temperature). This SoC comes with further enhanced built-in diagnostics and protection functions that ensure high system reliability and comprehensive security protection for users.  While maintaining a highly integrated design, NSUC1602 also has an optimized power management solution. The LIN port supports ±40V reverse voltage protection, and the BVDD pin supports a withstand voltage range from -0.3V to 40V, allowing direct power supply from a 12V automotive battery. This helps simplify system design and notably reduce development costs.  NSUC1602 demonstrates extensive applicability for diverse applications. With superior motor control performance, NSUC1602 can play a crucial role in a wide range of BLDC and BDC applications requiring precise temperature control and efficient power transmission, such as automotive electronic water pumps, cooling fans, air conditioning blowers, seat adjustment, sunroof control, or tailgate control. Its optimized power management solution ensures that these devices achieve significant energy consumption reduction and substantial service life extension, while providing exceptional performance.
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Release time:2025-04-07 13:29 reading:335 Continue reading>>
Renesas Extends Line-up For Industrial Ethernet and Multi-Axis <span style='color:red'>Motor</span> Control Solutions with High Performance Quad-Core Application Processor
  Renesas Electronics Corporation (TSE:6723), a premier supplier of advanced semiconductor solutions, today launched the RZ/T2H, the highest performance microprocessor (MPU) offered by Renesas for industrial equipment. Thanks to its powerful application processing and real-time performance, the RZ/T2H is capable of high-speed, high-precision control of industrial robot motors for up to 9 axes. It supports a variety of network communications including Industrial Ethernet on a single chip. The MPU targets industrial controller equipment such as programmable logic controllers (PLCs), motion controllers, distributed control systems (DCSs), and computerized numerical controls (CNCs).  With the growing demand for unmanned and labor-saving manufacturing, industrial robots such as vertically articulated robots, and industrial controller equipment are being deployed to accelerate automated production. The Renesas RZ/T2H MPU combines all the functionality and performance required for developing these applications. While industrial systems traditionally required multiple MPUs or a combination of field programmable gate arrays (FPGAs) to control these applications, the RZ/T2H MPU can now meet all the requirements on a single chip. This reduces the number of components and saves time and costs of FPGA program development.  “We have enjoyed outstanding market success with RZ/T2M and RZ/T2L,” said Daryl Khoo, Vice President of Embedded Processing 1st Business Division at Renesas. “The RZ/T2H builds on that momentum, allowing our industrial customers to leverage their existing design assets while addressing even more innovative, demanding industrial motor control and Linux applications. Our customers have been particularly impressed that the RZ/T2H enables them to implement a 9-axis motor control all on just one chip!”  High-Performance Application Processing and Fast Real-Time Control on a Single Chip  The RZ/T2H is equipped with four Arm® Cortex®-A55 application CPUs with a maximum operating frequency of 1.2 GHz. For external memory, it supports 32-bit LPDDR4-3200 SDRAM. Two Cortex-R52 CPUs with a maximum operating frequency of 1 GHz handle the real-time processing, with each core equipped with a total of 576 KB of high-capacity tightly coupled memory (TCM). This allows high CPU- and memory-intensive tasks such as running Linux applications, robot trajectory generation, and PLC sequence processing, to be executed on a single chip. At the same time, the RZ/T2H can handle fast and precise real-time control such as motor control and Industrial Ethernet protocol processing.  Motor control of up to 9 axes reduces component costs and development time  The Renesas RZ/T2H controls up to 9-axis servo motors in industrial robots with high-speed and accurate operation. The RZ/T2H comes with everything required for up to 9 axes of motor control including 3-phase PWM timers, delta-sigma interfaces for measuring current values, and encoder interfaces (A-format™, EnDat, BiSS®, Hyperface DSL, and FA-CODER are all supported). Furthermore, peripheral functions for motor control are placed on a Low Latency Peripheral Port (LLPP) bus of the Cortex-R52 real-time CPU core, allowing high-speed access from the CPU.  Flexible support for network communications including Industrial Ethernet  The RZ/T2H has four Ethernet ports, three Gigabit Ethernet MAC (GMAC), plus an Ethernet switch. It also supports EtherCAT, PROFINET, EtherNet/IP, OPC UA, and the next-generation Time-Sensitive Networking (TSN) standard. The combination of these Ethernet switches and GMAC allows the MPU to support multiple Industrial Ethernet controllers and devices, providing flexibility to adapt to a wide range of controller requirements, such as upper-layer Ethernet communications.  Specialized boards and software available for industrial robots and controllers  The RZ/T2H comes with the Renesas Flexible Software Package (FSP), as with all Renesas MPUs, together with a Linux package that comes with long term support. An out-of-the-box multi-axis motor control evaluation solution is available including inverter boards for driving 9-axis motors, a multi-axis motor control software package, and Motion Utility Tool (a motor control software tool). Sample protocols for industrial Ethernet and software PLC package are also included to kick-start system development.  “As industrial equipment continues to evolve, these systems increasingly require more complex functions and performance,” said Micael Borgefeldt, Product Manager at IAR Systems. “Including the latest RZ/T2H MPU from Renesas, we empower the developers to unlock flexible application configurations across 32-bit MCUs and 64-bit high-end MPUs multi-core environments. Our IAR development solution enables engineers to accelerate next-generation industrial innovation, streamlining development and boosting efficiency like never before.”  Winning Combinations  Renesas also offers “9-axis Industrial Motor Control with Ethernet” solution that combined the RZ/T2H with numerous compatible devices such as the RV1S9231A IGBT Drive Photocoupler and RV1S9353A Optically Isolated Delta-Sigma Modulator to offer a wide array of Winning Combinations. These Winning Combinations are technically vetted system architectures from mutually compatible devices that work together seamlessly to bring an optimized, low-risk design for faster time to market. Renesas offers more than 400 Winning Combinations with a wide range of products from the Renesas portfolio: renesas.com/win.  Availability  The RZ/T2H is available today. Renesas plans to release the new RZ/N2H device in Q1/2025, which offers the same performance as the RZ/T2H in a smaller package. This is ideal for industrial controller equipment such as PLCs and motion controllers.  The RZ/T2H is managed under the Product Longevity Program (PLP) for industrial equipment that requires long life cycles. For more information on the RZ/T2H, visit: https://www.renesas.com/rzt2h.  About Renesas Electronics Corporation  Renesas Electronics Corporation (TSE: 6723) empowers a safer, smarter and more sustainable future where technology helps make our lives easier. A leading global provider of microcontrollers, Renesas combines our expertise in embedded processing, analog, power and connectivity to deliver complete semiconductor solutions. These Winning Combinations accelerate time to market for automotive, industrial, infrastructure and IoT applications, enabling billions of connected, intelligent devices that enhance the way people work and live. Learn more at renesas.com. Follow us on LinkedIn, Facebook, X, YouTube, and Instagram.  (Remarks) Arm and Arm Cortex are trademarks or registered trademarks of Arm Limited in the EU and other countries. All names of products and services mentioned in this release are trademarks or registered trademarks of their respective owners.
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Release time:2024-12-02 14:31 reading:1069 Continue reading>>
Nidec Develops New Automotive Air Suspension <span style='color:red'>Motor</span>
  Nidec Corporation (TSE: 6594; OTC US: NJDCY) (the “Company”) today announced that Nidec Motor (Dalian) Limited (“Nidec Motor (Dalian)”), a corporation that the Company owns in China, has developed a new air suspension motor for automobiles.  By utilizing its long-nurtured technologies for brake and power steering motors and other drivetrain products, Nidec Motor (Dalian) has developed this latest air suspension motor. Compact, durable, and highly responsive during start-up, this product drives the air compressor, the component that supplies the air tank with compressed air.  Conventional suspension systems use a coil spring to absorb vibration and shock just to keep a car from swaying. Air suspension systems, on the other hand, can fine-adjust the car’s height with pneumatic pressure. This feature not only improves the car’s passenger comfort, it also improves the car’s driving performance based on running circumstances as well. For example, air suspension systems lower the car’s height during high-speed running to reduce air resistance, while increasing the car’s height during off-road running to enhance its ground-covering performance.  Main features:  1. It’s compact: With the ultimate-level torque, the motor is compact enough to be installed in a limited space. The strong magnetic structure guarantees this compact and efficient motor’s excellent performance.  2. It’s long-life: The brushless design of this motor makes it a durable product. With the use of electronic commutation, this motor better reduces risks of defacement of commutators and mechanical trouble, and secures a longer life, than its brushed counterparts.  3. It starts and responds quickly: The use of electronic commutation enables the motor to start and drive the compressor quickly, and to secure less start-up friction and better power-up responsiveness than its brushed counterparts.  As the world’s leading comprehensive motor manufacturer, Nidec stays committed to utilizing its technologies to make light, thin, short, and small products, technologies to improve efficiency, and technologies to secure high-level control, to propose revolutionary solutions that contribute to the evolution of automobiles.  Nidec Motor (Dalian) Limited:  Nidec Corporation’s first company to be established in mainland China in 1992, Nidec Motor (Dalian) Limited develops, produces, and sells automotive brakes, drivetrain units, steering systems, and other motors for the car’s main functions, as well as motors to improve passenger comfort (air suspension, sunroof, seat adjustment, column adjustor, and other applications). With its R&D and production technologies inter-integrated, Nidec Motor (Dalian)’s departments engage in simultaneous business activities to send out “easy-to-produce, high-quality” products into the world.
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Release time:2024-06-04 15:26 reading:1223 Continue reading>>
Nidec’s <span style='color:red'>Motor</span> for Battery-assisted Bicycles is Adopted for Use in Taiyo Yuden’s Regenerative System that Keeps Them Running for 1,000km per Charge
  Nidec Corporation (TSE: 6594; OTC US: NJDCY) (“Nidec” or the “Company”) today announced that a motor that it developed for regenerative system-based battery-assisted bicycles has been adopted for use in FEREMO™, the regenerative power assistance system*1 that Taiyo Yuden Co., Ltd. (“Taiyo Yuden”) produced keeps a bicycle running for up to 1,000km on a single charge*2  FEREMO™, the regenerative power-assisted system that Taiyo Yuden developed, uses its power-assisting motor as a generator when the person on a bicycle puts on the brake or has his/her feet off the pedals, to collect and reuse motion energy.  This feature enables FEREMO™ to enjoy a significantly longer per-charge running distance, or up to 1,000km, than conventional power-assisting systems. In addition, with speed suppressed while the regenerative system is on, one can ride a bicycle safely even on a downhill.  Nidec’s power-assisted bicycle motor installed in FEREMO™ was designed exclusively for the system. While conventional power-assisting systems merely engage in powered operation (i.e., driving a motor with battery-generated electricity), this new motor operates as a generator when a bicycle decelerates, engaging in regeneration (i.e., rotating a motor with external power to generate electricity). In comparison with the Company’s other existing motors, this latest model boasts 30% more regenerative electric power, which is an industry-leading power generation efficiency, to help FEREMO™ achieve the 1,000km travelling distance. Furthermore, unlike assistance-only motors, load is constantly on the motor, making it more durable, low-noise, and radiation-efficient than conventional models.  As the world’s leading comprehensive motor manufacturer, Nidec stays committed to developing products with its technologies to make light, thin, short, and small products, as well as productivity enhancement and control technologies; and to proposing, at an overwhelming speed, revolutionary solutions that contribute to the lives of people around the world.  *1: FEREMO™  are Taiyo Yuden Co., Ltd.’s registered trademark or trademark for use in Japan  *2. According to Taiyo Yuden’s prototype vehicle measurement patterns (eco mode: 1,000km; middle mode: 200km; and high mode: 100km) based on the Japanese Industrial Standards
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Release time:2024-04-23 11:47 reading:1300 Continue reading>>
NOVOSENSE Launches NSI22C1x Series Isolated Comparators to Help Create More Reliable Industrial <span style='color:red'>Motor</span> Drive Systems
  NOVOSENSE announced the launch of its NSI22C1x series isolated comparators based on capacitive isolation technology, which include NSI22C11 isolated single-ended comparators for overvoltage and overtemperature protection and NSI22C12 isolated window comparator for overcurrent protection. The NSI22C1x series can be used for overvoltage, overtemperature and overcurrent protection of industrial motor drives, solar inverters, uninterruptible power supplies and on-board chargers. While improving system reliability, it supports higher power density system designs and simplifies peripheral circuits to reduce the size of system protection circuits by 60% compared to the traditional discrete scheme.  Industrial motor drive systems, for example, are developing towards higher efficiency, higher power density and higher reliability. At the same time, with the application of wide bandgap semiconductors represented by SiC and GaN in power devices, higher requirements are placed on system reliability, especially the response time of overcurrent and short-circuit protection. The NSI22C1x series isolated comparators launched by NOVOSENSE can meet the growing demand for high reliability, high efficiency and compact design in industrial motor systems.  Ultra-low propagation delay and ultra-high CMTI support higher power density designs  The application environment of industrial motor drive systems is complex and harsh. Unexpected conditions such as bridge arm shoot-through, phase-to-phase short-circuit and ground short-circuit may occur, resulting in excessive current flowing into the motor drive system and causing damage to the driver. Traditional overcurrent detection design uses a discrete scheme of general-purpose comparators and optocouplers, with a response time of 3~5µs. As power devices shift from silicon-based IGBTs to third-generation semiconductors SiC and GaN, their short-circuit withstand time has been shortened to less than 1µs, which can no longer be met by the traditional scheme.  VIN(CH1), VOUT(CH2), VREF=320mV (protection threshold), NSI22C12 propagation delay measured 144ns  Meanwhile, general-purpose op amps/comparators have limited common-mode voltage tolerance and are limited in applications such as DC+ overcurrent and phase current overcurrent detection. If only DC- overcurrent is monitored, the fault condition of the motor shell being shorted to ground cannot be covered. NOVOSENSE's NSI22C12 isolated comparators provide a single-chip isolated overcurrent protection scheme that can cover a more comprehensive range of fault scenarios, support a maximum propagation delay of 250ns and bi-directional overcurrent protection, and provide CMTI (Common-Mode Transient Immunity) of up to 150kV/μs, which greatly improves system reliability and supports the adoption of higher power density designs for customers' motor drive systems.  VIN=0V, VOUT(CH1), CMTI(CH3)=150kV/μs, VOHmin =2.40V>0.7*VDD2(VDD2=3.3V)  When the primary and secondary sides of NSI22C12 withstand a CMTI of up to 150kV/μs, the output still maintains a high level and overcurrent protection will not be mistakenly triggered.  Simplified system designs reduce the size of system protection circuits by 60%  In industrial motor drive systems, the bill of materials for the overcurrent protection scheme based on general-purpose comparators and optocouplers is up to 27 pieces, and the system failure rate of peripheral circuits consisting of numerous discrete devices is relatively higher. NSI22C12 integrates a high-voltage LDO with a primary-side supply range of 3.1~27V, which can help customers reduce extra step-down regulators; NSI22C12 also integrates a 100μA ±1.5% high-precision current source, which can help customers achieve ±20mV~±320mV bidirectional threshold adjustment with only a single resistor on board.  With the support of a highly integrated design, the overcurrent protection scheme using NSI22C12 isolated comparators can reduce the bill of materials to 11 pieces and reduce the size of system protection circuits by 60%, greatly reducing the use of discrete devices, simplifying the system design, and further improving system reliability. At the same time, in some systems with fast protection requirements, using NSI22C12 isolated comparators can reduce the use of high-speed optocouplers and provide customers with more cost-effective design options.  Typical application block diagram of NSI22C12 for bus/phase current protection in motor drive systems  Packaging and selection  NSI22C11 isolated single-ended comparator and NSI22C12 isolated window comparator NSI22C12 are available in both SOP8 package (for basic isolation) and SOW8 package (for reinforced isolation). In addition, the NSI22C1x series supports a wide operating temperature range of -40°C to 125°C. Currently, the industrial version of the NSI22C1x series has been put into mass production, and the AEC-Q100 automotive version is expected to be launched in the second half of 2024.
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Release time:2024-02-28 13:58 reading:3019 Continue reading>>
AIR Partners with Nidec to Develop Customized eVTOL <span style='color:red'>Motor</span> for AIR ONE Production Model
  AIR, creator of eVTOLs for the consumer market, today announced its partnership with Nidec Motor Corporation, a leading manufacturer of commercial, industrial, and appliance motors and controls, to develop the motor for the production model of AIR’s two-seater eVTOL (electric vertical takeoff and landing) aircraft, AIR ONE. The two companies will design and develop a motor specifically for mid-sized eVTOL aircraft, ultimately filling a void in the burgeoning AAM (advanced air mobility) industry.  “AIR ONE”  This collaboration marks a significant step towards the future of aviation and the mass production of consumer eVTOL aircraft for the very first time. Nidec, an industry veteran of fifty years and among the world’s largest electric motor manufacturers, will work with AIR to develop an efficient motor customized to support the single-charge journeys of up to 100 miles that AIR ONE offers. Funded by the BIRD Energy program of the BIRD Foundation (Israel-U.S Binational Industrial R&D Foundation) to support innovative joint clean energy U.S.-Israel collaborations, the resulting enhanced-efficiency motor will be incorporated into AIR ONE’s continued flight testing and eventually into AIR’s production practices.  “The motor represents the heart of any vehicle. It’s thrilling to partner with Nidec, a pillar of market excellence, to advance the production of AIR ONE,” said Rani Plaut, CEO and co-founder of AIR. “Not only does this partnership represent a major turning point for the AAM industry as a whole, but it also specifically paves the way to fulfilling AIR’s mission and the dream of personal flight.”  “We’re excited to merge Nidec’s motor expertise and global manufacturing capabilities with AIR’s revolutionary eVTOL to deliver advanced motor capabilities to the individual consumers who wish to fly,” said Vincent Braley, CEO of Nidec Aerospace. “Nidec’s uncompromising quality standards and technical capabilities have been trusted implicitly for decades throughout industries, and we’re ecstatic to create an aerospace centric motor, designed for safety, that AIR ONE customers know they’ll be able to depend on.”  The partnership is the latest milestone for AIR, which announced its participation in the U.S. Air Force’s prestigious AFWERX Agility Prime program last month to drive flight testing and additional eVTOL R&D efforts in the United States. Previous full-scale, full-weight flight tests, including hover-to-cruise and cruiseto-hover transitions, prove AIR’s status as an industry leader, flying ahead of the curve on these milestones. With over 1,000 AIR ONE vehicles reserved via preorder and a waiting list, AIR plans to deliver the first batch of aircraft to consumers following aircraft certification.  About AIR  AIR is revolutionizing everyday mobility for everyday people, empowering individuals to seize the power of personal flight. Combining aerospace innovation with the maturity of automotive technology and uncompromising safety standards powered by proprietary fly-tech, AIR's first-of-its-kind eVTOLs for personal use offer the ground-breaking opportunity to easily "drive the sky." Founded by Chen Rosen, Netanel Goldberg and Rani Plaut, based in the green fields of Pardes Hanna, near Tel Aviv, AIR is paving the way for a cleaner, more thrilling future of mobility, affording everyone the freedom to fly.
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Release time:2024-02-22 13:14 reading:2885 Continue reading>>
AMEYA360:What Is a Brushless DC <span style='color:red'>Motor</span>
  Brushless DC motors meet this requirement. As Fig. 2.22 shows, the rotor of a brushless DC motor is a permanent-magnet rotor and the stator is a coil.  The difference from the DC motor (where the coil rotates) is the part that rotates. The principle of rotation, output characteristics, and other basic characteristics are virtually the same between them.  Since the coil does not rotate, brushes and commutators are not necessary. However, it is necessary to devise a means of detecting the rotor's rotational position to switch the current to the coil.  To create a brushless motor, it is necessary to switch the current using a method that is different from the one used in connection with mechanical contacts. Consequently, to drive a brushless DC motor, we switch the coil current by using a drive circuit configured with a semiconductor device instead of using mechanical contacts.  The brushless DC motor has been developed along with the development of semiconductor device, and it cannot rotate without its dedicated drive circuit.  A brushless DC motor is occasionally called a brushless motor ("DC" is omitted).  Fig. 2.22 (a) Structure of brushless DC motors  (1) Stator (Left) and rotor (Right) The concentrated winding method is more popularly adopted than distributed winding. The permanent magnet used on the rotor surface is made of neodymium.  Fig. 2.22(b) Example of brushless DC motor  (2) Structural example of brushless DC motor. A position detection sensor is seen in the casing to the right.
Release time:2024-02-02 15:48 reading:1711 Continue reading>>
ROHM’s Compact SOT-223-3 600V MOSFETs Contribute to Smaller, Lower Profile Designs for Lighting Power Supplies, Pumps, and <span style='color:red'>Motor</span>s
  ROHM has added a lineup of compact 600V Super Junction MOSFETs - the R6004END4 / R6003KND4 / R6006KND4 / R6002JND4 / R6003JND4. These devices are ideal for small lighting power supplies, pumps, and motors.  In recent years, power supplies for lighting and motors for pumps are required to be smaller as devices become more sophisticated - spurring the demand for compact MOSFETs that are essential for switching operation.  Generally, however, it has been difficult to reduce the size of Super Junction MOSFETs while maintaining an optimal balance between high breakdown voltage and low ON resistance. In response, after reviewing the shape of the mounted chip, ROHM was able to develop 5 models in the SOT-223-3 package (6.50mm × 7.00mm × 1.66mm) - providing a smaller, lower profile form factor without compromising the performance of conventional products.  Compared to the conventional TO-252 package (6.60mm × 10.00mm × 2.30mm), ROHM’s new products reduce area and thickness by 31% and 27% - contributing to smaller, lower profile applications. At the same time, the same land pattern (footprint) as the TO-252 package can be used, enabling mounting on existing circuit boards without modification.  Offering distinctive features, three of the models optimized for compact power supplies. The R6004END4, characterized by low noise, is suitable for applications where noise is a concern, while the R6003KND4 and R6006KND4, capable of high-speed switching, are ideal for sets requiring low loss, high efficiency operation. The R6002JND4 and R6003JND4 utilize proprietary PrestoMOS technology to achieve significantly lower switching losses by speeding up reverse recovery time (trr), making them well-suited for motors-equipped devices.  Supporting materials such as application notes, technical documents, and SPICE simulation models for each product are available on ROHM’s website free of charge to enable quick market introduction.  Going forward, ROHM will continue to expand its Super Junction MOSFET lineup in different packages and even lower ON resistances that contribute to solving social issues such as environmental protection by reducing power consumption in variety devices.  Product Lineup  For compact power supplies  Application Examples        • R6004END4 / R6003KND4 / R6006KND4: Lighting, Air conditioners, Refrigerators, etc.  • R6002JND4 / R6003JND4: Motors for pumps, fans, copiers, etc.  Online Sales InformationSales Launch Date: December 2023  Pricing: $3.0/unit (samples, excluding tax)  Online Distributors: DigiKey, Mouser, and Farnell  The products will be offered at other online distributors as they become available.  Online Distributors  For More Information about ROHM’s Super Junction MOSFETVarious resources are available on ROHM's website, including application notes on the SOT-223-3 package and other documents essential for circuit design.  https://www.rohm.com/support/super-junction-mosfet  PrestoMOS“Presto” is an Italian musical term meaning “very fast.”  PrestoMOS is ROHM’s original power MOSFET that maintains the high withstand voltage and low ON resistance of Super Junction MOSFETs while speeding up the reverse recovery time of the built-in diode. Reducing switching losses makes it ideal for a wider range of applications with inverter circuits, such as air conditioners and refrigerators.  TerminologySuper Junction MOSFET (Metal Oxide Semiconductor Field Effect Transistor)  A type of transistor, MOSFETs can be divided by device structure into DMOSFET (Double-diffused MOSFET), planar, and super junction topologies. Super Junction MOSFETs deliver superior breakdown voltage and output current than both DMOSFETs and planar types, featuring lower loss when handling large power.  trr (Reverse Recovery Time)  The time it takes for the built-in diode to switch from the ON state to completely OFF. The lower this value is, the smaller the loss during switching.
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Release time:2024-01-24 13:40 reading:2088 Continue reading>>
Renesas Programmable <span style='color:red'>Motor</span> Driver ICs Are First to Enable Full Torque at Zero Speed for Sensorless Brushless DC <span style='color:red'>Motor</span>s
  TOKYO, Japan ― Renesas Electronics Corporation (TSE:6723), a premier supplier of advanced semiconductor solutions, today introduced a family of motor driver ICs for brushless DC (BLDC) motor applications. The devices implement Renesas’ new, patent-pending technologies that enable full torque at zero speed from motors without sensors, an industry first. The new motor driver ICs enable Renesas customers to design sensorless BLDC motor systems with higher horsepower and speed at a given torque. They also improve power consumption and reliability, while reducing cost and board space by lowering the number of components designers need to use.  Renesas is introducing three new motor driver ICs with the new technology. The RAA306012 65V, 3-phase Smart Driver is a standalone device that can be paired with a variety of MCUs from Renesas or from other sources. The RAJ306101 integrates a Renesas RX13T 32-bit MCU with the RAA306012 in a single package, reducing board space and improving cost and reliability. The RAJ306102 integrates a 16-bit Renesas RL78/G1F MCU with the RAA306012, providing similar integration benefits.  The ability to enable full torque at zero speed without sensors is made possible by two Renesas innovations. Enhanced Inductive Sensing (EIS) offers stable position detection when the motor is completely stopped. When the motor is operating at extremely low speed, Motor Rotor position Identification (MRI) is used. At higher speeds, the new motor driver ICs use conventional methods. Both of the new EIS and MRI algorithms include patent-pending technology developed by Renesas.  “The advantages of sensorless design are numerous, including cost, space, power and reliability,” said Davin Lee, Vice President of the Advanced Analog Division at Renesas. “Our customers can now enjoy these benefits for systems that require full torque at zero speed. This industry first is a great example of Renesas combining our technical prowess with deep application knowledge to deliver a solution that meets a clear market need.”  “We are eager to implement sensorless technology into new products where we previously had to include sensors,” said Peter Korošec, President and CEO at Domel Inc, a global supplier of electric motors, vacuum motors, blowers, and components. “This breakthrough from Renesas will enable us to provide new products for our customers with the best available size, cost and reliability.”  Key Features of the Renesas New Motor Driver ICs  High integration including drivers, power management and current sensing  Adaptive and adjustable dead time improves efficiency  Charge pump maintains steady gate drive voltage at programmed settings  Programmable gate drive voltage enables driving of N MOSFETs and GaN FETs  Rich sensing blocks allow for better accuracy and wide-speed RPM drive  16 programmable slew rate settings minimize electromagnetic emissions  Supports all types of motor control algorithms such as Trapezoidal, Sinusoidal, and FOC  Extensive protection functions improve system safety  Winning Combinations  Renesas has combined the new motor driver ICs with complementary components from its portfolio to offer a wide array of Winning Combinations, including Cordless Vacuum Cleaner and 20V Cordless Leaf Blower. These Winning Combinations are technically vetted system architectures from mutually compatible devices that work together seamlessly to bring an optimized, low-risk design for faster time to market. Renesas offers more than 400 Winning Combinations with a wide range of products from the Renesas portfolio to enable customers to speed up the design process and bring their products to market more quickly. They can be found at renesas.com/win.  Availability  The RAA306012, RAJ306101, and RAJ306102 are available today. The RAA306012 is available in a 7mm x 7mm 48-pin QFN package. The RAJ306101 and RAJ306102 are offered in 8 x 8 mm 56-pin and 64-pin QFNs, respectively. Renesas is also offering evaluation kits for each of the new devices.
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Release time:2023-12-08 17:02 reading:2116 Continue reading>>
Murata:What Are the Conditions for Increasing the Efficiency of Power Conversion and <span style='color:red'>Motor</span> Drives and for Expanding the Use of SiC and GaN Power Semiconductors?
  Governments around the world and companies in all industries and businesses are coming together to engage in efforts to achieve carbon neutrality (Fig. 1). Every conceivable multifaceted decarbonization measure is being taken. This includes, for instance, the utilization of renewable energies such as solar power, the electrification of equipment that was previously used by burning fossil fuels, and the reduction in power consumption of existing devices like home appliances, IT equipment, and industrial motors.  Various countries and regions have introduced carbon pricing mechanisms as systems to shift greenhouse gas emissions from business activities to costs. As a result, in addition to being meaningful as social contribution, carbonization initiatives now have a clear numerical impact on the financial statements that serve as a report card for corporate management.  Full Model Change in Semiconductor Materials for the First Time in 50 Years  There has been an increase in activity for decarbonization efforts. Against this background, there is a field in semiconductors where the pace of the movement in technological innovation is rapidly accelerating. This is the power semiconductor field.  Power semiconductors are semiconductor devices that play the role of managing, controlling, and converting the power necessary to operate electrical and electronic equipment. These devices are built into so-called power electronics circuits. These circuits include power circuits that stably supply drive power to home appliances and IT equipment, power conversion circuits to transmit and distribute power without waste, and circuits that drive motors with high efficiency at a torque and rotational speed that can be controlled freely. These power semiconductors, which are key devices to realize a sustainable society, have now started to undergo a once-in-50-years full model change.  Power semiconductors have various device structures including MOSFET*1, IGBT*2, and diodes. They are used differently according to the purpose. Nevertheless, although the structure differs, silicon (Si) has consistently been used for more than 50 years as the device material. That is because Si has good electrical characteristics and has the property of being easy to process into various device structures at the same time.  *1: A Metal Oxide Semiconductor Field Effect Transistor (MOSFET) is a type of Field Effect Transistor. It functions as an electrical switch. These transistors consist of three layers: a metal, oxide, and semiconductor. The current is turned on and off by applying a voltage to the electrode called a gate.  *2: An Insulated Gate Bipolar Transistor (IGBT) is a transistor with a structure that combines a MOSFET and bipolar transistor. It is characterized by combining the high-speed operation of the MOSFET with the high withstand voltage and low resistance of the bipolar transistor.  However, Si-based power semiconductors are no longer able to clear the high level of technical requirements to further reduce the power consumption of various electrical and electronic equipment. To overcome this situation, progress is underway on the utilization of new materials such as silicon carbide (SiC) and gallium nitride (GaN), which are more suitable than Si as materials for power semiconductors. SiC and GaN have multiple physical properties and characteristics suitable for power semiconductors. These include their dielectric breakdown field strength (affects the withstand voltage), mobility (affects the operating speed), and thermal conductivity (affects reliability). If we can develop a device that brings out those excellent characteristics, we can realize power semiconductors with even higher performance.  SiC-based MOSFETs and diodes have already been commercialized. They are being used in electric vehicle (EV) motor drive inverters, DC/AC converters in solar power generation power conditioners, and other equipment. GaN-based HEMT*3 have also already been commercialized. They are now being used in AC converters for ultra-small PCs, chargers for smartphones, and other equipment.  *3: A High Electron Mobility Transistor (HEMT) is a Field Effect Transistor that enables high-speed switching by joining semiconductors with differing properties to induce electrons with high mobility.  Evolution of Capacitors, Inductors, and Other Equipment Is Essential to Draw out the Potential of SiC and GaN  It is not possible to draw out the full outstanding potential of power semiconductors made based on new materials simply by replacing the Si-based devices in existing power electronics circuits. This is because the other semiconductor ICs, passive components, and even the control software that comprise power electronics circuits have been developed and selected on the assumption they would be used in Si-based power semiconductors. It is necessary to newly re-develop and re-select these peripheral components as well to effectively utilize new material-based power semiconductors.  Fig. 2: Example of an AC/DC converter circuit utilizing a GaN-based power semiconductor used in data center servers and other technologies  For example, numerous GaN HEMTs are being used in AC/DC converter circuits that have adopted GaN HEMTs recently introduced to lower power consumption in the power supplies of data center servers (Fig. 2). It is possible to improve the switching frequency (operating frequency) of power electronics circuits by utilizing the features of GaN HEMTs in that they enable high-speed switching at high voltages. The reactance value of capacitors embedded into circuits and inductors in reactor signal processing circuits can be lower in circuits with a high operating frequency. In general, low reactance components have a small size. Therefore, it is possible to downsize the circuit board and to improve the power density. Similarly, introducing SiC MOSFETs even in inverter circuits which drive EV motors and other components enables the downsizing of peripheral components and also allows the overall inverter circuits to be made smaller and more lightweight.  On the other hand, a high level of noise may arise from high-voltage and high-speed switching power supplies. There is a possibility that noise may then adversely affect the operation of the peripheral equipment. Power supplies comprising power semiconductors made with SiC and GaN switch at an even higher frequency. Therefore, the risk of noise occurring further increases. Accordingly, stricter noise suppression is required than when using existing power electronics circuits. At that time, there is a need to use noise suppression components designed to be applied to high-voltage, large-current, and high-frequency circuits rather than those for conventional circuits.  In addition, there is also a need for small transformers that operate at even higher frequencies for transformers that are particularly heavy components even among passive components. Low profile planar transformers and other components have already been developed and launched onto the market under the assumption that they will be used in SiC- and GaN-based power semiconductors.  Attention Focusing on the Evolution of Peripheral Components in Addition to Power Semiconductors  Various types of semiconductors, not limited to power semiconductors, have been made based on Si up to now. Therefore, many existing electronic components have been developed under the implicit assumption that they will be used by being combined with Si-based semiconductors. It may become necessary to develop new products to suit the new technical requirements instead of simply searching for even better products among existing components to maximize the effect of introducing power semiconductors made with new materials.  In general, Si-based power semiconductors tend to operate at lower speeds the greater the voltage and current they can handle (Fig. 3). That is the reason why there are not enough small capacitors and reactors that can handle high voltages and large currents. Moreover, there is a trend to simplify the heat dissipation system and to reduce the size, weight, and cost for SiC-based power semiconductors that can operate stably under high temperatures. In these cases, the passive components also need to have a guaranteed high reliability under a high-temperature environment.  The introduction of new materials in the power semiconductor field is a major move to update the electrical and electronic ecosystem that has been optimized to Si materials for more than 50 years. Therefore, we also want to pay a great deal of attention to the evolution of peripheral electronic components optimized for new materials.
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Release time:2023-11-22 14:42 reading:1728 Continue reading>>

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