发明名称 PWM control circuit and motor equipped with the same
摘要 The PWM control circuit is provided. The PWM control circuit includes: a PWM control signal generator that generates a PWM period signal defining a period of a PWM signal and a PWM resolution signal specifying a resolution in one period of the PWM period signal; and a PWM unit that generates the PWM signal based on the PWM period signal and the PWM resolution signal, wherein the PWM control signal generator changes a frequency of the PWM resolution signal while keeping a frequency of the PWM period signal unchanged.
申请公布号 US7741927(B2) 申请公布日期 2010.06.22
申请号 US20080260140 申请日期 2008.10.29
申请人 SEIKO EPSON CORPORATION 发明人 TAKEUCHI KESATOSHI
分类号 G05B11/28;H03K7/08 主分类号 G05B11/28
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