Product category: Power Supply ICs and Controllers
News Release from: Toshiba Electronics Europe | Subject: TB65xx family
Edited by the Electronicstalk Editorial Team on 17 June 2003
Motor drivers include
real-time lead-angle control
A new range of motor drive ICs incorporates an automatic control function that allows for real-time lead-angle adjustment based on actual motor operating conditions
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A new generation of motor drive ICs reduces component count, minimise electrical and acoustic noise, and incorporates an automatic control function that allows for real-time lead-angle adjustment based on actual motor operating conditions. Toshiba's new three-phase brushless motor drive ICs offer full sinewave pulsewidth modulation (PWM) outputs, which minimise levels of acoustic and electrical noise without the need for external microcontrollers.
The built-in lead-angle control function senses motor current and automatically varies the lead angle to ensure optimum efficiency for varying speed and load conditions.
With previous generations of motor controller devices lead angle could only be adjusted for a fixed motor load and speed.
By ensuring optimum efficiency for all load conditions, the new motor drive ICs will allow designers to use smaller, lower cost and lower power motors than would previously have been possible.
Further reading
Microcontroller has SuperFlash code memory
Flash-based 16bit microcontroller for low-power portable applications
Compact microcontroller has many serial interfaces
A compact 8bit CMOS microcontroller combines 16kByte of SuperFlash memory with a large number of serial interfaces and new analogue IP blocks to detect low voltages and perform power on reset
The new ICs operate with supply voltages between 6 and 10V and feature a built-in triangular wave generator with a carrier frequency of 252Hz.
Designed to operate with external IGBT modules, devices in the TB65xx family support bootstrap circuit configurations and feature a built-in dead-time function to ensure safe IGBT operation in a push-pull configuration.
The TB65xx family of motor control ICs is ideal for home appliances, industrial motion control and other sub-400V motor drive applications where maximising system efficiency is a key design criterion.
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