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:
Jun. 14, 2022
Filed:
Feb. 07, 2020
Applicant:
Renesas Electronics America Inc., Milpitas, CA (US);
Inventors:
Michael Jason Houston, Cary, NC (US);
Allan Warrington, Kent, GB;
Assignee:
RENESAS ELECTRONICS AMERICA INC., Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); H02M 1/32 (2007.01);
U.S. Cl.
CPC ...
H02M 3/1582 (2013.01); H02M 1/32 (2013.01);
Abstract
One or more embodiments relate to a current limit mode control circuit for a buck-boost converter which can provide a stable switching of the converter by operating the converter in a current limit mode during an overcurrent condition, performing fewer state transitions while in the current limit mode, and/or by clamping (reducing to a lower value) the output of an error amplifier in the current limit mode for controlling a pulse width modulation (PWM) signal that drives the switching transistors.