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CONTROL CIRCUIT FOR IDENTIFYING POWER ADAPTOR AND METHOD FOR USE THEREOF

  • US 20080129123A1
  • Filed: 12/01/2006
  • Published: 06/05/2008
  • Est. Priority Date: 12/01/2006
  • Status: Active Grant
First Claim
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1. A control circuit being configured to identify an adaptor used with an electronic device comprising:

  • a system-side circuit that is configured to be incorporated in the electronic device, wherein the system-side circuit includes a switching circuit; and

    an adaptor-side circuit that is configured to be incorporated in the adaptor, wherein the adaptor-side circuit is used to convert an alternating current voltage to a direct current voltage and outputs the direct current voltage by positive and negative output terminals thereof, one of the positive and negative output terminals is coupled to said switching circuit, the other one of the positive and negative output terminals is configured to be coupled to the electronic device, the adaptor-side circuit includes a dividing circuit connected to the one of the positive and negative output terminals that is coupled to said switching circuit, and the dividing circuit has a voltage output control terminal that is connected to said switching circuit and used to switch on the switching circuit so that the electronic device is powered.

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