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Speed control circuit for motor

阅读:643发布:2021-07-19

专利汇可以提供Speed control circuit for motor专利检索,专利查询,专利分析的服务。并且PURPOSE:To maintain the linear speed of a motor constant by D/A-converting the value of a counter corresponding to the radius position on a disc of a pickup and then applying it to a motor. CONSTITUTION:When a disc 2 rotates at a high speed, a flip-flop is set by the high speed feeding of an operation controller 14 + the operation of a switch, an H signal is applied to an AND circuit, the output of an oscillator sequentially switches an up-down counter 9 to a down counting operation through an OR circuit, and sequentially drives a feed motor 3 toward positive direction. Accordingly, the counted output of the counter 9 is counted down by the counted value corresponding to the radius position on the disc 2 on the basis of the oscillated frequency of an oscillator of an operation controller 14, converted to a DC voltage through a digital-to-analog converter 10, and applied to the motor 3. Accordingly, the motor 3 can be driven at the linear constant speed on the basis of the counted value of the counter 9.,下面是Speed control circuit for motor专利的具体信息内容。

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