Energy-saving control circuit applied to relay driving

The utility model discloses an energy-saving control circuit applied to relay driving. Comprising an optocoupler, a first triode, a second triode, a relay and a voltage regulating circuit, an emitting electrode of the first triode is connected with the relay through a second resistor and a first capacitor which are sequentially connected in series, and the first capacitor is a charging capacitor. According to the utility model, the optocoupler is used as a signal receiving end, so as to play a role in optoelectronic isolation between a control end and the circuit, and play a role in preliminary protection; meanwhile, a delay circuit is formed by the first triode, the second resistor and the first capacitor, and the voltage regulating circuit is combined, so that the voltage required for working is reduced, the coil current is reduced, the power consumption is reduced, the working temperature is reduced, the relay is protected, the power consumption is reduced, and the whole energy-saving effect is achieved. 本