LED driving circuit and control method thereof, and LED driving device

The invention discloses an LED driving circuit. The circuit comprises an electric leakage protection circuit, and a dimming circuit, wherein the electric leakage protection circuit detects whether anelectric leakage phenomenon exists or not and generates an electric leakage control signal; and the d...

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Bibliographic Details
Main Authors LIN XINGYU, YE MEIPAN
Format Patent
LanguageChinese
English
Published 20.11.2020
Subjects
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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Summary:The invention discloses an LED driving circuit. The circuit comprises an electric leakage protection circuit, and a dimming circuit, wherein the electric leakage protection circuit detects whether anelectric leakage phenomenon exists or not and generates an electric leakage control signal; and the dimming circuit is connected with the electric leakage protection circuit and is used for receivingthe electric leakage control signal, dimming is performed according to the electric leakage control signal by the dimming circuit when the electric leakage phenomenon does not exist, and dimming is stopped according to the electric leakage control signal by the dimming circuit when the electric leakage phenomenon exists. According to the LED driving circuit provided by the embodiment of the invention, when electric leakage detection is carried out and the electric leakage phenomenon exists, the electric leakage protection circuit makes a bypass module be intermittently conducted to carry out electric leakage detection
Bibliography:Application Number: CN202010737875