Chopper circuit for d.c. motor专利检索-续流二极管二极管电子零件及设备专利检索查询-专利查询网

Chopper circuit for d.c. motor

阅读：352发布：2023-05-16

专利汇可以提供Chopper circuit for d.c. motor专利检索，专利查询，专利分析的服务。并且An improved chopper circuit for controlling a direct-current motor having a free-wheeling diode, comprising an oscillating circuit consisting of a series combination of a reactor and a capacitor and a switching element. A coil is serially connected to the free-wheeling diode of the motor and is magnetically connected to the reactor and transmits the energy stored thereon by the free-wheeling diode to the reactor for causing the charged voltage of the capacitor to become higher than that achieved in a prior art chopper circuit.，下面是Chopper circuit for d.c. motor专利的具体信息内容。

权利要求

1. A chopper circuit for controlling a direct-current motor having a free-wheeling diode serially connected at one end to a direct-current power source and at the other end to said chopper circuit, which chopper circuit comprises switching means serially connected at one end to said motor and at the other end to said power source, said switching means becoming conducting when subjected to a positive potential higher than a predetermined level and non-conducting when subjected to a negative potential, a combination of an inductive reactor and a capacitor serially connected to each other and shunting said switching means, and a coil electrically connected in series with said free-wheeling diode and magnetically connected to said reactor.

2. A chopper circuit as set forth in claim 1, further comprising a diode serially connected to that terminal of said reactor which is opposite to the terminal connected to said capacitor, and second switching means having operating characteristics similar to those of the first-named switching means and shunting said reactor and said diode serially connected to said terminal of said reactor.

3. A chopper circuit as set forth in claim 1, wherein said switching means comprise a silicon controlled rectifier.

4. A chopper circuit as set forth in claim 1, wherein said reactor is connected to said coil through a magnetic linkage.

5. A chopper circuit as set forth in claim 2, wherein each of the first named switching means and said second switching means comprise a silicon controlled rectifier.

6. A chopper circuit as set forth in claim 3, wherein said silicon controlled rectifier has a gate terminal connected to a pulse generator.

7. A chopper circuit as set forth in claim 4, wherein said magnetic linkage comprises an iron core.

8. A chopper circuit as set forth in claim 1, wherein said free-wheeling diode, said capacitor, and said reactor are serially connected.

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Chopper circuit for d.c. motor

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