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:
Jul. 06, 2021
Filed:
Aug. 12, 2020
Applicant:
Psemi Corporation, San Diego, CA (US);
Inventors:
Arezu Bagheri, San Diego, CA (US);
Buddhika Abesingha, Escondido, CA (US);
Assignee:
PSEMI CORPORATION, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/36 (2007.01); H03K 17/22 (2006.01); H03K 17/06 (2006.01); H02M 1/08 (2006.01); H02M 3/07 (2006.01);
U.S. Cl.
CPC ...
H03K 17/223 (2013.01); H02M 1/08 (2013.01); H02M 1/36 (2013.01); H02M 3/07 (2013.01); H03K 17/063 (2013.01);
Abstract
Methods and devices to address start up of half-bridge circuits including D-mode power FETs are disclosed. The disclosed devices overcome possible issues of output overload or excess current through gate-source of power FETs during start up. Voltage monitoring is used to address the issue of output overload and pre-charging of coupling capacitors are described as solutions to uncontrolled pre-charging of coupling capacitors. Pre-charging of coupling capacitors are implemented using current sources.