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. 13, 2014
Filed:
Sep. 05, 2012
Applicant:
Benjamin M. Rice, Cumberland, RI (US);
Inventor:
Benjamin M. Rice, Cumberland, RI (US);
Assignee:
Semiconductor Components Industries, LLC, Phoenix, AZ (US);
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/156 (2006.01); H02M 3/157 (2006.01);
U.S. Cl.
CPC ...
Abstract
A control circuit for a switching regulator includes a clock circuit, a pulsewidth modulation (PWM) circuit, and a reduction monitor. The clock circuit provides a clock signal at a variable frequency. The PWM circuit produces a drive signal of at least a first predetermined duration once every period of the clock signal. The reduction monitor controls the clock circuit to reduce the variable frequency in response to a sense signal that indicates that at least one of a voltage and a current is outside a limit during the first predetermined duration of said drive signal.