Improved frequency multiplying electrical circuits for motor speed control专利检索-直流分量电路专利检索查询-专利查询网

Improved frequency multiplying electrical circuits for motor speed control

阅读：322发布：2023-07-22

专利汇可以提供Improved frequency multiplying electrical circuits for motor speed control专利检索，专利查询，专利分析的服务。并且An electric motor is fed through a rectifying circuit with a bypass circuit connected across the motor for removing the DC component of the rectified current so that the motor is fed with an AC current having a higher frequency than that of the supply and means are provided for varying the speed of the motor.，下面是Improved frequency multiplying electrical circuits for motor speed control专利的具体信息内容。

权利要求

2. A frequency multiplying circuit for use with an alternating current electrical supply and an induction motor, said circuit comprising: a rectifier circuit having an input for connection to said alternating current supply and an output for supplying rectified current, a load circuit including said induction motor, capacitive coupling means between the output of said rectifier circuit and said motor for passing the alternating current component of said rectified current to said motor, and at least one resistive bypass circuit connected across the output of said rectifier circuit for bypassing the direct current component of said rectified current away from said motor, said rectifier circuit comprising a whole wave rectifier circuit and further comprising switching means for effectively changing said whole wave rectifier circuit to operate as a half wave rectifier circuit thereby effecting a speed control of the motor.

3. A frequency multiplying circuit for use with a polyphase alternating current electrical supply and and induction motor, said circuit comprising: a rectifier circuit having an input for connection to said polyphase alternating current supply and an output for supplying rectified current, a load circuit including said induction motor, capacitive coupling means between the output of said rectifier circuit and said motor for passing the alternating current components of said rectified current to said motor, and at least one resistive bypass circuit connected across the output of said rectifier circuit for bypassing the direct current component of said rectified current away from said motor, said rectifier circuit comprising a half-wave polyphase rectifier circuit, and switching means for changing said polyphase rectifier circuit to operate as a single phase rectifier circuit.

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Improved frequency multiplying electrical circuits for motor speed control

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