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.

Date of Patent:
Feb. 18, 2020

Filed:

Jun. 22, 2018
Applicant:

Monolithic Power Systems, Inc., San Jose, CA (US);

Inventor:

Zheng Luo, San Jose, CA (US);

Assignee:

Monolithic Power Systems, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/157 (2006.01); H03K 4/50 (2006.01); H03F 3/45 (2006.01); H02M 1/08 (2006.01); H02M 3/15 (2006.01); H02M 1/00 (2006.01); H03K 19/20 (2006.01); H03K 5/24 (2006.01); H02M 3/156 (2006.01); H02M 3/158 (2006.01); H02M 1/14 (2006.01);
U.S. Cl.
CPC ...
H02M 3/157 (2013.01); H02M 1/08 (2013.01); H02M 3/15 (2013.01); H03F 3/45071 (2013.01); H03K 4/50 (2013.01); H02M 1/14 (2013.01); H02M 3/156 (2013.01); H02M 3/1588 (2013.01); H02M 2001/0025 (2013.01); H03F 2200/48 (2013.01); H03F 2203/45631 (2013.01); H03K 5/24 (2013.01); H03K 19/20 (2013.01);
Abstract

A control circuit and method for a voltage converter. The control circuit having a ramp circuit, a reference generating circuit, a comparison circuit and a logic circuit. The ramp circuit generates a ramp signal that decreases from the moment the power switch is turned off and increases from the moment the power switch is turned on. The reference generating circuit generates a reference voltage. The comparison circuit compares the reference voltage with the sum of the feedback voltage and the ramp signal to generate a comparison signal. The logic circuit uses the comparison signal and a clock signal to generate the control signal to control a power switch of the voltage converter.


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