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DRIVING CIRCUIT FOR RELAY

  • US 20130201594A1
  • Filed: 02/03/2012
  • Published: 08/08/2013
  • Est. Priority Date: 02/03/2012
  • Status: Abandoned Application
First Claim
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1. A driving circuit for relay, comprising:

  • a plurality of relays, having coils coupled to a power supply, the power supply providing a driving voltage to the coils of the plurality of relays, and the coils of the plurality of relays coupled to each other;

    a switching control circuit, coupled to the coils of the plurality of relays and a reference voltage, and controlling on/off of the coils of the plurality of relays according to a driving signal; and

    a driving control circuit, coupled to the coils of the plurality of relays, controlling excitation of the coils of the plurality of relays, and controlling the voltage of the coils of the plurality of relays to be greater than or equal to one Nth of the driving voltage, respectively, and to be smaller than or equal to the driving voltage, respectively, where N is the number of the plurality of relays and N is greater than one.

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