Patent ID: 8053928
Filing Date: 2011-11-08
Classification: H02H,H02J,Y02B,Y04S

Abstract:
1. A power conversion circuit for converting a first power signal from a power source into a second power signal required for a load, said power conversion circuit comprising: a driving circuit for determining whether said load is connected with or disconnect from a converter, and driving an auxiliary power source; said converter electrically connected to said power source for receiving said first power signal and converting said first power signal into said second power signal; an activating circuit connected to said converter for enabling or disenabling said converter to convert said first power signal into said second power signal; and said auxiliary power source electrically connected to said activating circuit and said driving circuit, and driven by said driving circuit to issue either a first control signal to said activating circuit if said load is connected with said power conversion circuit or a second control signal to said activating circuit if said load is disconnected from said power conversion circuit, wherein in response to said first control signal, said first power signal is converted into said second power signal by said converter and said second power signal is transmitted to said load, and in response to said second control signal, said converter is disenabled so as to reduce power loss of said first power signal.