Patent ID: 11063461

Abstract:
The present invention discloses a mobile phone APP control-based energy-saving charger, including a bridge rectifier circuit, a switch control circuit, a high-frequency transformer, and a low-voltage output circuit that are sequentially connected in series. The charger further includes: an electronic switch connected in series between the bridge rectifier circuit and the switch control circuit, an APP signal demodulation circuit for demodulating a mobile phone-side APP control signal and outputting a power-off control signal, an isolating drive circuit for isolating the control signal, and a power-on self-holding circuit connected to the isolating drive circuit and a control end of the electronic switch, where the power-on self-holding circuit controls on and off of the electronic switch according to the isolated control signal and provides a short-time ON level to the control end of the electronic switch at the beginning of power-on of the charger so as to keep the electronic switch on.