Short-circuit protection circuit with multiple outputs

The utility model discloses a multipath output short circuit protection circuit, comprising a direct current output voltage, an output Buck, a voltage detection module, an LED and a dimming signal PWM, the anode of the output Buck is connected with a VO +, the cathode of the output Buck is connected...

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Bibliographic Details
Main Authors WANG CHENGUANG, XU RUOPENG, WU YINCHAO
Format Patent
LanguageChinese
English
Published 05.01.2021
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
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Summary:The utility model discloses a multipath output short circuit protection circuit, comprising a direct current output voltage, an output Buck, a voltage detection module, an LED and a dimming signal PWM, the anode of the output Buck is connected with a VO +, the cathode of the output Buck is connected with an OUTT, the output Buck is grounded GND1 through a capacitor, and the voltage detection module comprises a triode Q14, a triode Q15, a field-effect tube Q16 and a field-effect tube Q23. Wherein the triode Q14 is connected with the VO +, a resistor R83 and a resistor R80 are in bridge connection between the base electrode and the collector electrode of the triode Q14, the resistor R83 and the resistor R80 are connected in series, the emitter electrode of the triode Q14 is connected with the collector electrode of the triode Q15, and a resistor R96 and a resistor R97 are in bridge connection between the base electrode of the triode Q15 and the collector electrode of the triode Q14. Theutility model has the adv
Bibliography:Application Number: CN202020414959U