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    • 10. 发明授权
    • Method and apparatus for DC motor speed control
    • 直流电机调速方法及装置
    • US5845045A
    • 1998-12-01
    • US341380
    • 1994-11-17
    • Frank JeskeArno KarwathHermann Rappenecker
    • Frank JeskeArno KarwathHermann Rappenecker
    • H02P6/06H02P6/08H02P6/12H02P6/14H02P6/15H02P6/34H02P5/06
    • H02P6/08H02P6/12H02P6/14H02P6/15H02P6/34H02P2209/07
    • A memory device, e.g. a capacitor, is provided for a collectorless DC motor. This component is charged whenever a particular rotor position is reached. In so doing, a voltage value or quantity on this memory device is changed. This quantity is compared to another quantity, which is dependent on a desired parameter, e.g. ambient temperature or gas or dust concentration. A reference signal is produced when a particular reference criterion is satisfied. The difference between the beginning of this reference signal and a second predetermined rotor position, which follows the initial predetermined rotor position with respect to time, is measured, and on the basis of this measurement, the current flow of the collectorless DC motor is influenced or regulated. In particular, the current can be toggled on and off as the rotor passes certain predetermined positions.
    • 存储器件,例如 为无集电极直流电机提供电容器。 只要达到特定的转子位置,就会对该部件进行充电。 这样做时,该存储器件上的电压值或数量被改变。 将该量与另一数量进行比较,其取决于期望的参数,例如, 环境温度或气体或粉尘浓度。 当满足特定参考标准时产生参考信号。 测量该参考信号的开始与相对于时间的初始预定转子位置之后的第二预定转子位置之间的差异,并且基于该测量,影响无集电极直流电动机的电流, 规定。 特别地,当转子经过某些预定位置时,电流可以被切换开和关。