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:
Dec. 01, 2020
Filed:
Apr. 14, 2020
Joulwatt Technology (Hangzhou) Co., Ltd., Hangzhou, CN;
Hao Long, Hangzhou, CN;
Xunwei Zhou, Hangzhou, CN;
JOULWATT TECHNOLOGY (HANGZHOU) CO., LTD., Hangzhou, CN;
Abstract
A supply method of a dual-chip power circuit, and a dual-chip power circuit are provided. The dual-chip power circuit includes an inductor, a conduction element, a first chip and a second chip. The first chip includes a control circuit and a supply circuit. The second chip includes a first switch and a drive control circuit, and the drive control circuit is connected to a control end of the first switch. The supply method includes the following steps. When starting, the drive control circuit controls the power circuit to operate in an open-loop state; and if the output voltage of the supply circuit is detected to be established, the supply circuit supplies power to the control circuit, the drive control circuit of the second chip receives an output voltage of the first chip, and then the power circuit operates in a closed-loop state.