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Research of Standby Control in LLC Resonant Converter

Author: GaoFengChuan
Tutor: XuDeHong
School: Zhejiang University
Course: Power Electronics and Power Drives
Keywords: Standby mode control LLC resonant converter
CLC: TM46
Type: Master's thesis
Year: 2006
Downloads: 386
Quote: 1
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Abstract


In recent years, with the promotion of the popularity of home appliances and office automation , many products have a standby function . Followed by the standby power consumption , the waste of energy , while the formation of a huge environmental pressure , how to reduce standby power consumption , standby control is one of the hot research at home and abroad . Switching power supply standby operation , the output current is close to zero , the conduction loss can be ignored , the switching loss and the loss of the control circuit become a major standby power , wherein the switching loss and the switching frequency is closely related to reduce the switching frequency helps to reduce switching losses , while the loss of the circuit and control the chip select control and a feedback circuit , and other related . Power supply module , home appliances and office equipment , the majority of the PWM control converter the standby control technology is more mature , and less in the the standby control study of resonant converter . The new the resonant topology used in home appliances and office equipment in the power supply module , the standby control study of resonant converter is very urgent and necessary . Paper mainly studies the standby control problems of the LLC resonant converter , the characteristics of the LLC resonant converter is designed with standby operating mode of the control circuit , the current through the detection switch tube enters the standby mode to determine whether the work , in the standby mode by detecting The feedback voltage to control the output . The first principle of simulation, and verified by experiments on the basis of the simulation , the feasibility of the standby function .

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CLC: > Industrial Technology > Electrotechnical > Transformers, converters and reactors > Converter
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