The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 2024
Filed:
Mar. 09, 2020
Shenzhen Tcl Digital Technology Ltd., Guangdong, CN;
Dong Wen, Guangdong, CN;
Shenzhen TCL Digital Technology Ltd., Shenzhen, CN;
Abstract
A power source switch circuit include a switch, a switch control circuit configured to control the switch to be turned on/off, and a negative feedback circuit configured to feedback an output voltage of the switch. An input end of switch is connected to the switch control circuit, 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. The switch control circuit includes a bipolar transistor having a base, a collector and an emitter, 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.