Power supply control circuit and LED drive circuit

The utility model provides a power supply control circuit and an LED drive circuit. The power supply control circuit comprises a first voltage conversion circuit, a power supply voltage control circuit, a drive voltage control circuit and a switch control circuit. The first voltage conversion circui...

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Bibliographic Details
Main Author LIU BAIREN
Format Patent
LanguageChinese
English
Published 22.11.2022
Subjects
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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Summary:The utility model provides a power supply control circuit and an LED drive circuit. The power supply control circuit comprises a first voltage conversion circuit, a power supply voltage control circuit, a drive voltage control circuit and a switch control circuit. The first voltage conversion circuit is used for converting a first voltage into a power supply voltage. The input end of the power supply voltage control circuit is coupled with the first voltage conversion circuit, and the power supply voltage control circuit is used for outputting a first control signal according to the power supply voltage. The input end of the driving voltage control circuit is coupled with the characterization signal end, and the driving voltage control circuit is used for outputting a second control signal according to the characterization signal. The switch control circuit is coupled to the power supply voltage control circuit and the driving voltage control circuit. The switch control circuit is used for generating a switch
Bibliography:Application Number: CN202121957594U