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:
Sep. 11, 2018
Filed:
Jan. 13, 2017
Applicant:
Dialog Semiconductor Inc., Campbell, CA (US);
Inventors:
Mingsheng Peng, Campbell, CA (US);
Andrey Malinin, Campbell, CA (US);
Pengju Kong, Campbell, CA (US);
Qiu Sha, Campbell, CA (US);
Guang Feng, Campbell, CA (US);
Assignee:
DIALOG SEMICONDUCTOR INC., Campbell, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/36 (2007.01); H02M 1/08 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/36 (2013.01); H02M 1/08 (2013.01); H02M 3/335 (2013.01); H02M 3/33592 (2013.01); H02M 2001/0009 (2013.01);
Abstract
A startup circuit is provided for establishing the Vcc voltage level of a switching power converter. The startup circuit uses a switch controller and path switching transistor to provide a two-stage Vcc capacitor charging that reduces startup time while avoiding short circuit damage through the alternate usage of a high impedance charging path and a low-impedance charging path.