Invention Application
US20160190947A1 POWER CONVERSION APPARATUS WITH POWER SAVING AND HIGH CONVERSION EFFICIENCY MECHANISMS 有权
功率转换装置具有省电和高转换效率的机制

  • Patent Title: POWER CONVERSION APPARATUS WITH POWER SAVING AND HIGH CONVERSION EFFICIENCY MECHANISMS
  • Patent Title (中): 功率转换装置具有省电和高转换效率的机制
  • Application No.: US14689041
    Application Date: 2015-04-16
  • Publication No.: US20160190947A1
    Publication Date: 2016-06-30
  • Inventor: Chein-Kuo Shein
  • Applicant: Power Forest Technology Corporation
  • Priority: TW103146541 20141231
  • Main IPC: H02M3/335
  • IPC: H02M3/335 H02M1/08
POWER CONVERSION APPARATUS WITH POWER SAVING AND HIGH CONVERSION EFFICIENCY MECHANISMS
Abstract:
A power conversion apparatus is provided. The power conversion apparatus includes a transformer, a synchronous rectification (SR) transistor and an SR control circuit. A first terminal of a primary side of the transformer receives an input voltage. A first terminal of a secondary side of the transformer provides an output voltage to a load. A first drain/source terminal of the SR transistor is coupled to a second terminal of the secondary side of the transformer. A second drain/source terminal of the SR transistor is coupled to a first ground terminal. A gate terminal of the SR transistor receives a control signal. The SR control circuit receives a signal of the first drain/source terminal of the SR transistor to determine statuses of the load and generate the control signal. When the load is a light load, the SR control circuit enters a power-saving mode and turns off the SR transistor.
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