OREANDA-NEWS. Toshiba Corporation 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.