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:
May. 21, 2019
Filed:
Jun. 05, 2018
Joulwatt Technology (Hangzhou) Co., Ltd, Hangzhou, Zhejiang, CN;
JOULWATT TECHNOLOGY (HANGZHOU) CO., LTD, Hangzhou, CN;
Abstract
A switching power supply using a power switch, and a drive circuit therefor are disclosed. This circuit includes a power supplying capacitor with distal end connected with control terminal of the power switch and proximal end to receive a voltage regulation signal generated by a first control signal and a pulse signal. The power switch may be turned on or off, depending on whether the first control signal is placed in a first state during which the voltage regulation signal is in pulse state with the voltage at said distal end made effective, or in a second state during which the voltage regulation signal is in low-level state with the voltage at said distal end made ineffective. A continuous drive and power supplying for the switching power supply is realized, and the capacitance of said capacitor is small, thereby facilitating circuit integration.