公开(公告)号：US06710564B2

公开(公告)日：2004-03-23

申请号：US10223609

申请日：2002-08-20

申请人： Makoto Shibuya ,  Norimasa Takano

发明人： Makoto Shibuya ,  Norimasa Takano

IPC分类号： H01R3946

CPC分类号： H02P29/02 ,  H02P6/18 ,  H02P6/34

摘要： A method or apparatus for controlling a brushless motor having an inverter. The inverter comprises a first and a second plurality of switching elements at a first and second phase sides, respectively, and a drive control device. The drive control device switches either a state of the first or the second plurality of switching elements. A first transient voltage is generated in each second switching element when the state of the second plurality of switching elements is switched. The second transient voltage is generated in each first switching element when the state of the first plurality of switching element is switched. Timing of switching the state of the first plurality of switching elements by the PWM control is altered, such that a combined voltage of the first and the second transient voltage is less than a maximum allowable voltage of the first plurality of switching element or of the second plurality of switching elements.

摘要翻译： 一种用于控制具有逆变器的无刷电动机的方法或装置。 逆变器分别包括在第一和第二相侧的第一和第二多个开关元件和驱动控制装置。 驱动控制装置切换第一或第二多个开关元件的状态。 当切换第二多个开关元件的状态时，在每个第二开关元件中产生第一瞬态电压。 当第一多个开关元件的状态被切换时，在每个第一开关元件中产生第二瞬变电压。 通过PWM控制来切换第一多个开关元件的状态的定时被改变，使得第一和第二瞬态电压的组合电压小于第一多个开关元件或第二多个开关元件的最大允许电压 多个开关元件。