Patent ID: 11949323
Assignee: SHENZHEN TCL DIGITAL TECHNOLOGY LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A power switch circuit, comprising:
a switch;
a switch control circuit, configured to control the switch to be turned on/off; and
a negative feedback circuit connected to the switch control circuit, configured to feedback an output voltage of the switch;
wherein an input end of the switch is connected to the switch control circuit and a power, an output end of the switch is connected to a load circuit and the negative feedback circuit, and a control end of the switch is connected to the switch control circuit and the negative feedback circuit,
wherein the switch control circuit comprises:
a bipolar transistor, having a base, a collector and an emitter, wherein the emitter is grounded;
a first resistor, connected between the base and a control signal;
a second resistor, connected between the collector and the input end of the switch; and
a third resistor, connected between the collector and the control end of the switch.