Overvoltage protection self-recovery energy-saving LED drive power source
A LED drive and overvoltage protection technology, applied in the direction of electric light source, electroluminescent light source, light source, etc., can solve the problems of reducing maintenance costs, LED drive power cannot be self-recovery, etc., to reduce maintenance costs, reduce costs and volume , the effect of simple peripheral circuit
Active Publication Date: 2018-09-11
HYRITE LIGHTING CO
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Abstract
The invention discloses an overvoltage protection self-recovery energy-saving LED drive power source. According to the overvoltage protection self-recovery energy-saving LED drive power source of theinvention, commercial power is rectified through a rectifier bridge, so that direct current can be outputted; the output end of the rectifier bridge is connected with a load through a switching transformer; the on-off of power source output is controlled through a driving chip; an overvoltage protection circuit is provided to protect a circuit; and the 5 pin of the driving chip is connected with the coil of the switching transformer through an NPN triode. According to the overvoltage protection self-recovery energy-saving LED drive power source of the invention, alternating current inputted bythe rectifier bridge is converted into direct current; the direct current which has passed through the rectifier bridge and the 1 pin of the driving chip are connected into the overvoltage protectioncircuit; and the overvoltage protection circuit is used to protect a driving circuit which adopts the driving chip as a core when a voltage is too high; when the voltage returns to normal, an LED drive automatically resumes normal operation; and therefore, maintenance cost can be reduced, and a problem that an existing LED drive power source cannot be recovered by itself after performing overvoltage protection work can be solved.
Application Domain
Electrical apparatusElectroluminescent light sources +1
Technology Topic
Rectifier diodesElectricity +6
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