August 21, 2013

 

 

Contributes to Low-Noise, Highly Efficient Motor Operation
TOKYO – Toshiba Corporation (TOKYO: 6502) today announced the launch of “TB9080FG”, a three-phase brushless motor pre-driver IC for general automotive applications, which realizes low-noise and highly efficient motor operation through a sinusoidal wave drive and lead angle control1. Mass production is scheduled to start in September this year.

Engine noise in vehicles equipped with an idling reduction system disappears when the system is activated, with the effect of making noise from car air conditioners much more audible. Demand for a method to cut air conditioner noise is increasing, but mechanical solutions, such as optimization of blade shape in blower fans, the major noise source, and noise absorbent material in air ducts, fall short of realizing low noise.

“TB9080FG” replaces 120-degree rectangular wave control with sinusoidal wave control that cuts noise from the blower fan motor electronically. Optimized lead angle control also contributes to the increased efficiency of the motor operation.

＜Key Features of the New Products＞
Sinusoidal wave control reduces noise

Use of a third harmonic wave realizes sinusoidal wave control, contributing to quieter motor operation.

■Digital filter prevents overshoot2 at motor start-up

Digital filter circuits control external PWM3 signal, securing a slow motor start that avoids overshoot.

■Built-in data table for 16 kinds of rotation numbers

A built-in data table supports use of motors with a range of pole numbers, from 4 to 12 poles.

■Optimized lead angle control realizes high efficiency

Motor current is measured and the lead angle automatically controlled in 1 degree increments, contributing to motor operation efficiency.

■Motor speed feedback control improves the accuracy of rotation speed

Motor rotation speed is controlled by comparing the target figure and the signal from external hall element sensors4.

＜Main Specifications＞

 

 [1] A method to improve motor drive efficiency by controlling the phase difference of current and voltage

 [2] The signal or value exceeds its target figure temporarily

 [3] Pulse Width Modulation. A method to control torque and rotation speed of a motor by changing the on and off time in a constant period.

 [4] A magnetic sensor to detect rotary position and rotation speed.

Information in this document, including product prices and specifications, content of services and contact information, is current on the date of the announcement but is subject to change without prior notice.

Toshiba Corporation- Semiconductor and Storage Products Company　Website＞http://www.semicon.toshiba.co.jp/eng/index.html?mm=cp0822&no=02

 

 

Visit Chip1Stop Chinese site
Visit Chip1Stop Korean site
Visit Chip1Stop English site
Visit Chip1Stop German site

Companies Website:
http://www.semicon.toshiba.co.jp/eng/index.html?mm=cp0822&no=02

Toshiba News Release

• Toshiba Starts Test-Sample Shipments of a Bare Die 1200V SiC MOSFET with Low On-Resistance and High Reliability, for Use in Automotive Traction Inverters

  2024/11/13Toshiba  Automotive

• Toshiba Starts Sample Shipments of Gate Driver IC for Three-Phase Brushless DC Motors in Diverse Automotive Applications

  2024/11/01Toshiba  Automotive

• Toshiba Releases Automotive Photorelay with Output Withstand Voltage of 900V, Housed in a Small Package

  2024/10/28Toshiba  Automotive

• Toshiba’s 1200V Additions to its Lineup of Third-Generation SiC Schottky Barrier Diodes Will Contribute to High Efficiency in Industrial Power Equipment

  2024/09/26Toshiba  Power Supply

• Toshiba Is Sampling an Automotive CXPI Responder Interface IC that Contributes to Shorter Software Development Times

  2024/09/05Toshiba  Automotive

Related News Release

• STMicroelectronics’ failsafe comparators with guaranteed start-up time boost reliability and power savings

  2024/12/03  STMicroelectronics  Analog

• Flexible, space-saving class-D amplifier for in-car audio, from STMicroelectronics, adds automotive-optimized diagnostics

  2024/09/30  STMicroelectronics  Analog

• ROHM Group Company SiCrystal and STMicroelectronics Expand Silicon Carbide Wafer Supply Agreement

  2024/04/23  STMicroelectronics  Analog

• STMicroelectronics’ SiC-based digital power solution selected by Compuware for high-efficiency and reliable server power supply

  2024/04/02  STMicroelectronics  Analog

• STMicroelectronics boosts silicon power performance with automotive-grade MDmesh DM9 super-junction MOSFETs

  2024/03/18  STMicroelectronics  Analog