Mon, 22 Jul 2024 17:00:00 +0900 hourly 1 /release/202407123567 Mon, 22 Jul 2024 17:00:00 +0900 Nuvoton Technology Nuvoton Technology Corporation Japan (NTCJ) announced on July 8 the launch of a new 48V direct driv... Nuvoton Technology Corporation Japan
Nuvoton Technology Corporation Japan (NTCJ) announced on July 8 the launch of a new 48V direct drive motor driver IC that enables high efficiency and high airflow with high speed rotation in fan motors.
 
Image: https://cdn.kyodonewsprwire.jp/prwfile/release/M108245/202407123567/_prw_PI1fl_92dLE2oI.png
 
1. The newly developed motor driver IC incorporates a 100V-rated voltage control circuit, based on the high-voltage control circuit technology that NTCJ has cultivated over the years, into a small 4mm x 4mm QFN package, while significantly reducing external components such as step-down regulators (53% reduction from the conventional 24V product). This reduces power loss and enables installation onto 1U-size (40mm x 40mm) fans, contributing to high-density data processing.
 
2. The high-speed data processing of the AI server requires the fan motor to rotate at a higher speed in order to cool down the increasing heat generation. Simultaneously, it is necessary to suppress the rising trend of power consumption in fan motors, and its vibrations that adversely affect the HDD error rate. NTCJ’s proprietary technology for real-time feedback control of motor drive current value and phase with high resolution makes it possible to reduce the power consumption of single-phase fan motors by 30% and vibration by 20 dB compared to conventional motors, even at high speeds when higher airflow can be output. This contributes to high-speed, large-capacity data processing that requires high cooling capabilities.
 
3. In general, it is difficult to detect reverse rotation in a single-phase fan motor. So, when the fan motor stops and there is interference in between multiple fans, or when the fan motor rotates in reverse due to disturbances such as the inflow of external air, it is difficult to restart the fan motor in conventional products. However, NTCJ’s proprietary rotation control algorithm can achieve reliable and stable restart even from reverse rotation speed that is twice as high as the conventional products.
 
For more information, please visit:
https://www.nuvoton.com/products/motor-drivers/motor-driver-ics/brushless-dC-Motor-drivers-BLDC/
 
About Nuvoton Technology Corporation Japan: https://www.nuvoton.co.jp/en/
]]> /release/202407083263 Tue, 16 Jul 2024 17:00:00 +0900 Nuvoton Technology TOF Sensor for Enhanced Object Detection and Safety Application: Nuvoton Launches New 3D TOF Sensor... Nuvoton Technology Corporation Japan
TOF Sensor for Enhanced Object Detection and Safety Application: Nuvoton Launches New 3D TOF Sensor with Integrated Distance Calculation Circuit
 
Nuvoton Technology Corporation Japan is set to begin mass production of a 1/4-inch VGA (640x480 pixel) resolution 3D Time-of-Flight (TOF) sensor in July 2024. This sensor is poised to revolutionize the recognition of people and objects in various indoor and outdoor environments. This capability has been achieved through Nuvoton's unique pixel design technology and distance calculation/Image Signal Processor (ISP) technology.
 
1. High Accuracy in Bright Ambient Lighting Conditions
Leveraging Nuvoton’s proprietary CMOS image sensor pixel technology and CCD memory technology, the new TOF sensor has four memories in the 5.6-square-micrometer pixel compared to the three memories of its conventional TOF sensor and achieves accurate distance sensing by simultaneously controlling pulse light sources and acquiring background light signals. It can provide the precise recognition of the position and shape of people and objects under various ambient lighting conditions.
 
Figure1: https://cdn.kyodonewsprwire.jp/prwfile/release/M108245/202407083263/_prw_PI1fl_b1WW8Has.png
 
2. Accurate Distance Measurement for Moving Objects
With four embedded memories within each pixel, Nuvoton’s new TOF sensor outputs distance images in a single frame. This innovative design significantly reduces motion blur and measurement errors in moving objects by capturing and calculating distance from four types of imaging signals within one frame. This feature is particularly suited for applications requiring dynamic object detection and recognition, such as obstacle detection for autonomous mobile robots (AMRs) and airbag intensity control in vehicles.
 
Figure2: https://cdn.kyodonewsprwire.jp/prwfile/release/M108245/202407083263/_prw_PI2fl_V2L6WaJJ.png
 
3. Integrated Distance Calculation Circuit for Fast and Accurate Sensing
Nuvoton’s new TOF sensor is equipped with an integrated distance calculation circuit and a signal correction ISP, enabling it to output high-speed, high-precision distance (3D) images at up to 120 fps (QVGA) without delay. This eliminates the need for distance calculation by the system processor, reducing the processing overhead and enabling faster sensing systems. Additionally, the sensor can simultaneously output distance (3D) and IR (2D) images, useful for applications requiring both high precision and recognition/authentication functions.
 
Figure3: https://cdn.kyodonewsprwire.jp/prwfile/release/M108245/202407083263/_prw_PI3fl_40ER7k9f.png
 
For more information, please visit:
https://www.nuvoton.com/products/image-sensors/3d-tof-sensors/kw330-series/
 
About Nuvoton Technology Corporation Japan: https://www.nuvoton.co.jp/en/
 
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