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Systems and methods for achieving low power standby through interaction between a microcontroller and a switching mode power supply

  • US 20050041360A1
  • Filed: 05/26/2004
  • Published: 02/24/2005
  • Est. Priority Date: 08/20/2003
  • Status: Abandoned Application
First Claim
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1. A system for conserving power comprising:

  • a switching power supply having an input section receiving a line voltage, the switching power supply further configured to receive a first control signal placing the switching power supply into an off state, the switching power supply further comprising an output section providing a first output and a second output, the first output providing a capacitive reserve power when the switching power system is in the off state;

    a control circuit receiving a second control signal and generating the first control signal in response to the second control signal; and

    a microcontroller providing the second control signal to the control circuit when the switching power supply is in the off state, the microcontroller further receiving the first output from the switching power supply.

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