Controller and control method of asymmetric half-bridge power supply

Controller and control method of asymmetric half-bridge power supply

The invention provides a controller and a control method of an asymmetric half-bridge power supply, and relates to the technical field of electronics, the asymmetric half-bridge power supply comprises a first arm switch and a second arm switch which form a half bridge, and the asymmetric half-bridge...

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Hauptverfasser: SHEN YILUN, HUANG YUYUN
Format: Patent
Sprache:chi ; eng
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APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
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creator SHEN YILUN
HUANG YUYUN
description The invention provides a controller and a control method of an asymmetric half-bridge power supply, and relates to the technical field of electronics, the asymmetric half-bridge power supply comprises a first arm switch and a second arm switch which form a half bridge, and the asymmetric half-bridge power supply comprises a resonant circuit connected to the half bridge, the resonant circuit comprises a transformer and an oscillation capacitor, and the method comprises the following steps: providing a length parameter which reflects second turn-on time of a second arm switch in a previous switching period; providing a control signal to turn on the first arm switch for a first turn-on time within the current switching period; detecting whether the first arm switch realizes ZVS in response to the signal edge of the control signal, and adjusting the length parameter according to the ZVS; determining second turn-on time of the second arm switch in the current switching period according to the adjusted length param
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subjects APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
title Controller and control method of asymmetric half-bridge power supply
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