Adapting to challenging magnetic environments: MT73xx 3D dual-output Hall latches from NOVOSENSE enable precise automotive motor control
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Adapting to challenging magnetic environments: MT73xx 3D dual-output Hall latches from NOVOSENSE enable precise automotive motor control

　　The NOVOSENSE MT73xx series dual-output Hall latches, based on 3D Hall technology, support SS (Speed & Speed) or SD (Speed & Direction) dual-channel outputs and complies with Automotive Grade 0 standards. Ideal for motor control systems such as power windows, liftgates, and sunroofs, this product family enhances the accuracy and stability of speed and position detection, optimizing overall in-vehicle comfort.　　In motor control systems, precise detection of speed and direction signals directly influences system response speed and operational stability. Traditional solutions typically rely on a combination of two separate Hall latches, requiring high magnetic ring installation precision. This often leads to issues such as signal phase deviation, poor synchronization, and structural complexity.　　Integrates a 3D Hall sensing structure with inherent orthogonal output characteristics, the MT73xx series can simultaneously deliver dual-channel speed signals (SS output) with a 90° phase difference or speed and direction signals (SD output), making it widely suitable for “speed-direction” detection applications. This design reduces dependency on precise positioning of magnetic poles, mitigates dual-channel phase deviation, simplifies system architecture, and improves overall system stability, providing a more flexible and reliable solution for motion control detection.　　Compatibility with diverse magnetic ring configurations enabled by VHS technology　　To achieve high-precision 3D sensing, the MT73xx series adopts NOVOSENSE’s proprietary VHS (Vertical Hall Sensor) technology. Through combinations of XY, YZ, and XZ axial sensing, any two axes naturally deliver orthogonal outputs, enhancing signal synchronization.　　Additionally, the MT73xx series offers excellent compatibility with various magnetic ring configurations – whether axial, radial, or irregularly shaped magnets – maintaining robust duty cycle performance. This allows customers to adapt designs flexibly depending on magnetic ring characteristics and installation environments, further reducing development complexity and tuning costs.　　Dual-output design for optimized system integration　　Regarding system integration, the MT73xx’s dual-output capability allows it to replace traditional single- or dual-Hall solutions by directly transmitting SS (Speed & Speed) or SD (Speed & Direction) signals to ECU, minimizing the requirements for peripheral redundant position sensors.　　This approach not only saves PCB space and simplifies structural layouts, but also enhances solution integration, offering greater design flexibility for innovative applications in motor control and intelligent cockpit systems.
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Release time：2025-08-13 15:35 reading：726 Continue reading>>
Commercialized high precision agricultural CO2 sensors with superior long-term stability
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Commercialized high precision agricultural CO2 sensors with superior long-term stability

　　Murata Manufacturing Co., Ltd. (hereinafter "Murata") has commercialized "IMG-CA0012-12" (hereinafter "this product"), a case and cable type CO2 sensor. This high precision product primarily connects to environment measurement equipment in agricultural greenhouses and stably measures CO2 concentration. Through linkage with photosynthesis accelerators, this product will contribute to improving crop quality and increasing yield. Additionally, it improves energy efficiency by injecting an optimal amount of CO2 at an optimal timing. Mass production and supply for this product has begun in Hakui Murata Manufacturing.　　In the field of agriculture, increased yield and quality improvement per unit area are required since there is a reduction in yield and decline in quality due to global warming as well as a drop in agricultural worker population. Technology for accelerating crop photosynthesis using CO2 application is an effective means of addressing these challenges. Furthermore, due to the recent increase in energy costs, effective CO2 application based on environmental data measurements is crucial. As a result, high-precision CO2 sensors, which offer long-term stability, require no calibration, and are resistant to malfunction, play a crucial role in photosynthesis accelerator technology.　　This product is equipped with an automatic calibration function that runs on our unique calibration curve algorithm and dual wavelength (for measurement and reference) NDIR*1. Therefore, atmospheric calibration is not required. This ensures high precision and long-term stability, making it maintenance-free. Furthermore, its case and cable type design enhances user handling and ease of installation.　　*1NDIR: Non-Dispersive Infrared Absorption　　Specifications　　CO2 sensors were installed in greenhouses and were used for a year for tomato cultivation and 2 years for rose cultivation. After use, CO2 concentration characteristics and temperature characteristics were evaluated.　　It was discovered that CO2 concentration differences were minimal even when they were used for a long period of time in actual fields.　　CO2 concentration characteristics　　Temperature characteristics
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Release time：2025-04-02 15:44 reading：622 Continue reading>>
NSM211x Series High-Precision AEC-Q100 Current Sensors Eliminate Need for External Isolation Components
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NSM211x Series High-Precision AEC-Q100 Current Sensors Eliminate Need for External Isolation Components

　　NOVOSENSE Microelectronics, a semiconductor company specializing in high-performance analog and mixed-signal chips, has announced the NSM211x, a series of automotive-grade fully integrated high-bandwidth, high-isolation current sensors that both ensure precise current measurement and eliminate the need for any external isolation components.　　On display at Electronica 2024 (Stand B5.450), the automotive-grade series targets applications including OBC/DC-DC converters, PTCs, automotive motor control, charging station current detection and fuel cell systems.　　Certified to meet AEC-Q100 Grade 0 reliability standards, the series is designed to operate stably within a wide temperature range (-40 to 150°C) and addresses the needs of AC or DC current detection in automotive applications with a high isolation voltage, strong current handling capability and high reliability.　　With a -3 dB bandwidth of up to 1 MHz and a response time of 400 ns, the NSM211x series helps control systems achieve rapid loop control and overcurrent protection. The series also features a creepage distance of up to 8.2mm and isolation voltage withstand of 5,000 Vrms per UL standards, with a maximum working isolation voltage of 1,618 Vpk.　　It is available in three packaging options, SOP8, SOW16 and SOW10. These respectively have a primary side impedance of 1.2 mΩ, 0.85 mΩ/1 mΩ and an industry leading 0.27mΩ, with a continuous current handling capability of up to 100 A. Multiple product models are available for each package.　　The current sensors integrate internal temperature compensation algorithms and offline calibration to enable a high measurement accuracy (<±2% sensitivity error and <±10 mV offset error) across the full temperature range, with no need for secondary programming.　　The NSM211x series supports 3.3 V and 5 V power supply voltage as well as DC or AC current measurement with a current range of 5~200 A with options for reference voltage output, overcurrent protection output, and configurable overcurrent protection thresholds.
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Release time：2024-11-15 14:30 reading：720 Continue reading>>
NOVOSENSE Introduces New Solid State Relays: Supporting 1700V Withstand Voltages and Meeting <span style='color:red'>CIS</span>PR25 Class 5 Requirements
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NOVOSENSE Introduces New Solid State Relays: Supporting 1700V Withstand Voltages and Meeting CISPR25 Class 5 Requirements

　　Building on its long history in isolation technology, NOVOSENSE today announced the launch of its new NSI7258 series of capacitive isolation-based solid state relays, available in both industrial and automotive grades. Designed specifically for high-voltage measurement and insulation monitoring, NSI7258 provides industry-leading voltage withstand capability and EMI performance to help improve the reliability and stability of high-voltage systems such as industrial BMS, PV, energy storage, charging piles, and BMS and OBCs for new energy vehicles.　　Integrated SiC MOSFETs, supporting 1700V withstand voltages　　High-voltage systems are becoming increasingly prevalent in both the industrial and automotive sectors. In order to match the trend of high-voltage industrial and automotive platforms, NSI7258 integrates two SiC MOSFETs developed with NOVOSENSE's participation in a back-to-back format, each supporting up to 1700V withstand voltages; in the standard 1-minute avalanche test, NSI7258 withstands an avalanche voltage of 2100V and an avalanche current of 1mA, achieving industry-leading voltage and avalanche resistance. At the same time, under the test conditions of 1000V high voltage and 125°C high temperature, the leakage current of NSI7258 can be controlled within 1μA, which greatly improves the insulation impedance and detection accuracy of the battery pack in the BMS and enables safer human-machine interaction.　　Compliance with various safety requirements, reducing system verification time　　The popularity of high-voltage applications requires compliance with various stringent safety requirements. With NOVOSENSE's proprietary technology, NSI7258 achieves industry-leading creepage distance of 5.91mm on the secondary side and 8mm on the primary side in a SOW12 package, which meets the requirements of IEC60649 formulated by the International Electrotechnical Commission (IEC). In addition, with NOVOSENSE's superior capacitive isolation technology, NSI7258's voltage withstand capability is up to 5kVrms, which fully meets the relevant UL, CQC and VDE certifications, reducing customers' system verification time and accelerating the product-to-market process.　　Significant EMI optimization, accelerating optocoupler relay replacement　　Traditional optocoupler relay solutions suffer from light decay problems and their performance degrades over time, but the advantage of optocoupler relays is that they have no EMI problems, which is one of the important factors limiting optocoupler replacement in high-voltage systems. NOVOSENSE's NSI7258 is cleverly designed to achieve industry-leading EMI performance, easily passing the CISPR25 Class 5 test without magnetic beads on the single board and leaving sufficient margin in the full-band test. NSI7258 is produced based on an all-semiconductor process for higher reliability in long-term use. Superior EMI performance and increased reliability allow customers to use multiple devices in the system at the same time without being affected, significantly reducing design difficulty and enabling customers to accelerate optocoupler replacement in system designs.
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Release time：2024-05-20 15:39 reading：2184 Continue reading>>
Nidec Precision Develops TapSense, the World’s Thinnest Linear Resonant Actuator
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Nidec Precision Develops TapSense, the World’s Thinnest Linear Resonant Actuator

　　Nidec Precision Corporation (“Nidec Precision” or the “Company”), a member of Nidec Corporation’s group companies, announced today that it has developed TapSense, the world’s thinnest linear resonant actuator*.　　Nidec Precision’s TapSense　　Nidec Precision developed TapSense, the world’s thinnest* 1.4mm-thick linear resonant actuator by utilizing its precision manufacturing technology that the Company has, since its foundation, nurtured in the camera industry – and by designing from scratch a magnetic circuit optimum for a thin actuator. TapSense realizes tablet and notebook PCs and other digital terminals that are thinner than their conventional models.　　With its excellent responsiveness and vibration force, TapSense can reproduce a crisp click feeling, while recreating a variety of tactile feedback, including the feeling of dial control. Additionally, its high responsiveness makes TapSense easier to control than conventional linear resonant actuators.　　The cumulative shipments of the Nidec Group’s vibration motors exceeded 1.5 billion units at the end of March 2024, and these motors produced by Nidec’s technologies which enable light, thin, short, and small form factors with high efficiency and ease of control are highly valued by our customers.　　As a member of the world’s leading comprehensive motor manufacturer, Nidec Precision stays committed to proposing revolutionary solutions that contribute to realizing a comfortable society.　　*Data, from Nidec Precision’s research, as of May 01, 2024
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Release time：2024-05-10 13:11 reading：1746 Continue reading>>
Nidec Drive Technology Adds New Super-high-precision Reducers to Its ABLE Series
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Nidec Drive Technology Adds New Super-high-precision Reducers to Its ABLE Series

　　Nidec Drive Technology (“Nidec Drive Technology” or the “Company”), a member of Nidec Corporation’s group companies, announced today that it has added high-end models that boast industry-leading low backlash, noise, and vibration, to the Company’s lineup of the ABLE series, a group of servo motor-dedicated planetary reducers currently on sale.　　A VRS Series Reducer A VRT Series Reducer　　Nidec Drive Technology’s Latest High-precision ABLE Series Reducers　　“ABLE reducer” is the trade name of the group of servo motor reducers that Nidec Drive Technology sells. The latest models that the Company has newly developed adopt tooth-surface grinding gears*1, successfully achieving industry-leading precision, noise, and vibration levels (backlash: 1min., or 1/3 of existing models*2; noise level: 5dB*3; and vibration level: 30% less than existing models*3).　　High-end laser beam machines, machine tools, woodworking machinery, and other mechanical products require highly accurate positioning, and a reducer’s backlash, vibration, etc. directly affect such products’ precision. Nidec Drive Technology’s latest products, whose tooth surfaces were ground with the newest models of Nidec Machine Tool Corporation’s globally renowned gear grinders, have achieved the aforementioned performance levels while driving down cost.　　Nidec Drive Technology stays committed to providing various business fields with high-efficiency industrial machines that utilize the Company’s continuously variable transmission-based knowhow, to contribute to productivity improvement and automation.　　*1. Tooth-surface grinding: A method to grind gear’s tooth surface with a grinding stone. Other grinding methods include gear cutting, shaving, and skiving, but the tooth-surface grinding method can secure better precision than them.　　*2. Backlash: The gap created when meshing gears are interlocked with each other.　　*3. Representative values of Model No. VRS-140, with a reduction ratio of 1/4
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Release time：2024-04-18 13:45 reading：1608 Continue reading>>
3PEAK Launches TPAFE51760, a 16-Channel High-Precision ADC
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3PEAK Launches TPAFE51760, a 16-Channel High-Precision ADC

　　3PEAK (Stock Code: 688536), a semiconductor company focused on the development of high-performance analog chips and embedded processors, introduces the TPAFE51760, a new 16-channel high-precision ADC.The TPAFE51760 ADC features a built-in high-precision reference and supports operating temperatures of –40°C to +125°C. It is widely used in power automation devices such as DTUs, FTUs, and MUs.　　TPAFE51760 Advantages　　1: Industry-Leading ±30-V Analog Input Over-Voltage Clamp　　2: Operational Amplifiers for Integrated Signal Conditioning and Simplified Sampling Circuit to Conserve PCB Space and Enhance Reliability　　3: 16-channel Input for Simultaneous Dual-Circuit or Dual-Grid Electricity Network Sampling to Reduce the Number of ADCs and Save PCB Space and Costs　　4: 16-bit Resolution for Improved Sampling Accuracy　　5: 1MSPS Sampling Rate to Meet the Sampling Timeliness Requirements in Power and Most Other Sectors　　6: Industry-Leading DNL and INL Performance; Curves #1–#4 below display actual measurements from competitors　　7: Built-in High-Precision Reference with Maximum Temperature Drift of Less Than 10 ppm/°C　　8: Stable SNR and THD Performance Across Full Temperature Range　　9: Industry Leading Input Voltage Tolerance and ESD Capability　　Typical Applications for the TPAFE51760　　The following flow diagram displays a representative application for DTUs/FTUs in the power industry, where the three-phase voltage and current signals from the power transmission network are input to the ADC either directly after passing through two stages of voltage/current transformers or after signal conditioning through operational amplifiers. The ADC converts these analog signals into digital signals, which are then processed and controlled by the subsequent MCUs.　　Thanks to the TPAFE51760's integrated front-end analog signal processing circuit, which has an input voltage range of up to ±10 V, a signal conditioning circuit should not be required for most applications.　　Typical Application Diagram for DTUs/FTUs in the Power Industry　　The TPAFE51760 is now in mass production. Samples and evaluation boards are available.
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Release time：2024-03-22 14:46 reading：2417 Continue reading>>
novosns：Sensors improve the energy efficiency and environmental performance of central air conditioners through precise temperature, humidity, pressure, and current measurement
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novosns：Sensors improve the energy efficiency and environmental performance of central air conditioners through precise temperature, humidity, pressure, and current measurement

　　With the improvement in people's living standards and the growing demand for a more comfortable living environment, China's central air conditioning market has maintained relatively stable growth. Temperature and humidity, pressure, and current sensors with high-precision detection capability are critical to the various functions of central air conditioning. As a manufacturer of high-performance, high-reliability analog and mixed-signal chips, NOVOSENSE offers a wide range of sensor and analog IC solutions for central air conditioning applications.　　Development trends and new requirements for central air conditioning　　According to statistics, in the first half of 2023, in China's central air conditioning sales, multi-connected systems accounted for approximately 51%, continuing to rank first in the market. The reason why multi-connected systems are favored by the market mainly lies in their low installation cost, flexible applications, and high energy efficiency. For this reason, some well-decorated homes have also begun to standardize on this type of air conditioning.　　Commercial central air conditioners adopt a one-to-many architecture, in which an outdoor unit drives multiple indoor units. Each indoor unit has a corresponding line controller, which can automatically adjust the air outlet, airflow, and cooling and heating power through the feedback of temperature and humidity to maintain a comfortable indoor temperature.　　The development trend of multi-connection technology is mainly reflected in two directions. One is energy saving and noise reduction: outdoor units and even indoor units have frequency conversion capabilities, which can reduce noise by increasing the frequency while achieving low standby power consumption. The other is better comfort and improved environmental performance: meeting specific requirements for airflow, temperature and humidity control while reducing the damage of refrigerant leakage to the natural environment to ensure effective air conditioning.　　· NOVOSENSE's sensor products can exactly meet the above trend requirements. These products include temperature and humidity sensors and pressure sensors that meet comfort and environmental performance requirements, magnetic current sensors that ensure normal operation of outdoor units, and various analog IC products.　　NOVOSENSE offers comprehensive sensor solutions for central air conditioning applications　　The temperature and humidity sensor is used to detect the ambient temperature and humidity to control the airflow from the air outlet and balance the ambient humidity for improved comfort.　　NSHT30 is a temperature and humidity sensor with very small size and very high accuracy. It adopts a 2.5mm×2.5mm small package (LGA and DFN options). The MCU reads the temperature and humidity data through the I²C interface of the sensor. Temperature and humidity measurements are from -40°C to 125°C and from 0 to 100%, which can basically cover all temperature and humidity ranges.　　The advantage of NSHT30 is, first of all, the response time. The acquisition time of temperature and humidity is only 2s and 6s, respectively. Its accuracy is also higher than other similar products in the market. The chip calibration before leaving the factory can ensure high accuracy requirements. Under the condition of 0~50°C, the error of NSHT30 can be controlled at ±0.3°C (typical value); and under the condition of 50% relative humidity, the error can be controlled at ±3% to meet the accuracy requirements of air conditioning.　　The pressure sensor is usually placed on the outdoor unit or refrigerant transmission pipe to detect refrigerant leakage and refrigerant pressure, ensuring effective air conditioning while achieving environmental performance.　　NSPAS3 is an integrated absolute pressure sensor for refrigerant leakage pressure detection in air conditioners. Its operating temperature is from -40°C to 130°C, and its internally integrated temperature compensation circuit can achieve ±1% control accuracy in the range of 0~85°C and ±1.5% control accuracy in the range of -40°C to full temperature.　　NSPAS3 is compatible with the pressure test range of 10kPa~400kPa and can detect refrigerant leakage pressure. The standby power consumption of this product is less than 3mA, and the response time is within 0.8ms. In addition, the chip package is coated with anti-corrosion jelly glue, which can prevent some corrosive gases from damaging the chip package.　　NSC2860x is a capacitive pressure transmitter signal processing ASIC solution. It can detect the refrigerant pressure (3~5MPa) in the air conditioning compressor. The chip integrates various digital components such as PGA, ADC, MCU and various interfaces. It has a very high degree of integration and can convert the monitored pressure into a digital signal for processing by the MCU. NSC2860x also integrates a 4-20mA loop power supply, which enables longer distance transmission to meet the communication distance requirements between the pressure sensor and the MCU main control board in the refrigerant system.　　The magnetic current sensor is generally placed in the outdoor unit and is mainly used to monitor the current of the outdoor unit, such as PFC current or phase current of the air conditioning compressor motor. It achieves tracking feedback by collecting system current signals to ensure normal operation of the system.　　NSM2019 is an integrated Hall current sensor, mainly used to detect the motor current or PFC current of the air conditioner. The MCU reads the current value through the VOUT pin. It integrates the reference voltage and OCP (overcurrent protection) internally, eliminating the need for some peripheral devices such as comparators or op amplifiers. This product covers a range of 20A~200A, which can meet the power requirements of commercial air conditioners from several kilowatts to one hundred kilowatts.　　NSM2019 has an accuracy of ±2% and can guarantee accuracy over the full temperature range. Its isolation withstand voltage is up to 5,000V, the creepage distance is up to 8.2mm, and it can withstand 20kA surge current. Its input bandwidth is as high as 320K, which can meet the bandwidth requirements of current detection. Due to the small internal resistance, the heat output of the chip is also small.　　Other analog IC solutions for central air conditioning applications　　In addition to sensors, NOVOSENSE offers many analog IC product solutions. Analog ICs are mostly used in outdoor units. The topology of the outdoor unit determines that the 220V mains power needs to be rectified by PFC to approximately 400VDC, which then feeds the bus voltage of the two motors. The motor is directly driven by IGBT or IPM. The MCU that drives the IGBT is usually placed at the low voltage end, so it is necessary to use an isolated driver to rotate the motor. As a result, many isolated driver products are required. At the same time, the current and voltage must be monitored. The PLC also needs to collect the voltage and current, so op amplifier products are also used.　　The outdoor unit and the indoor unit communicate through 485 or CAN bus. Since the two generally do not share a common ground, some isolated interfaces are also needed. NOVOSENSE provides digital isolator products that convert high voltage to low voltage to power MCUs. The power supply is usually converted from high voltage to low voltage by flyback power supply, then converted to 5V by DC-DC, and then converted to 3.3V by LDO to power other chips.
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Release time：2024-03-18 16:53 reading：1109 Continue reading>>
Nidec Drive Technology Develops Smart-FLEXWAVE, the World’s First Precision Reducer with Multiple Built-in Sensors
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Nidec Drive Technology Develops Smart-FLEXWAVE, the World’s First Precision Reducer with Multiple Built-in Sensors

　　Nidec Drive Technology Corporation (“Nidec Drive Technology” or the “Company”), a member of Nidec Corporation’s group companies, announced today that it has developed Smart-FLEXWAVE, the world-first product that combines FLEXWAVE, an existing precision control reducer for robots and machine tools, with built-in torque, temperature, and angle sensors.　　FLEXWAVE, the currently available precision reducer with a wave gear mechanism, is used chiefly in industrial robots’ joints for its ability to achieve a high reduction ratio with a single axis, among other features such as light weight, compact size, high rotation accuracy, and super-low backlash. The Smart₋FLEXWAVE, the newly developed reducer that combines torque, temperature, and angle sensors in its mechanism, can detect output torque, temperature inside a reducer, and input axis angle while maintaining an existing reducer’s space.　　This feature enables Smart₋FLEXWAVE to contribute to making smaller and lighter collaborative robots, detect a robot crashing into an obstacle, and monitor screw tightening torque, overheat, stopping place, etc., all remotely via a network, boosting productivity.　　The Company stays committed to providing a variety of fields with its high-efficiency industrial machines based on its reducer- and continuously variable transmission-based knowhow to contribute to productivity enhancement and automation.
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Release time：2023-12-12 14:24 reading：2296 Continue reading>>
Nidec Drive Technology Develops New Precision Reducer, KINEX
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Nidec Drive Technology Develops New Precision Reducer, KINEX

　　Nidec Drive Technology Corporation (“Nidec Drive Technology” or the “Company”), a member of Nidec Corporation’s group companies, announced today that it has developed a new precision reducer, KINEX, expanding its lineup of precision-control reducers.　　KINEX, a highly rigid precision reducer composed of inscribed planetary gears, can be installed as a servo motor reducer for any application such as the joints of mid- and large-size multi-joint robots and SCARA robots (Selective Compliance Assembly Robot Arms). With an “N” series, which is a group of central solid-axis models, and a “C” series, which comprises hollow-shaft models, KINEX utilizes Nidec’s technology to be low-noise and maintenance-free. By combining KINEX with FLEXWAVE, a precision control reducer already on sale, users can enjoy a lineup of reducers to handle all robot joints, while employing those products to a wide variety of applications ranging from machine tools to semiconductor manufacturing equipment.　　The Company stays committed to providing a variety of fields with its high-efficiency industrial machines based on its reducer- and continuously variable transmission-based knowhow to contribute to productivity enhancement and automation.
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Release time：2023-11-13 16:08 reading：2542 Continue reading>>

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