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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.:

US 11005374 B1

PDFFull Text
Date of Patent:
May. 11, 2021

Filed:

Jun. 19, 2019

System and method to enhance signal to noise ratio and to achieve minimum duty cycle resolution for peak current mode control scheme

Applicant:

Crane Electronics, Inc., Redmond, WA (US);

Inventors:

Cuon Lam, Renton, WA (US);

Sovann Song, Kent, WA (US);

Leslie Khauv, Redmond, WA (US);

Mikel Thomas, Kirkland, WA (US);

Assignee:

Crane Electronics, Inc., Redmond, WA (US);

Attorney:

Seed Intellectual Property Law Group LLP

Primary Examiner:

Thienvu V Tran

Assistant Examiner:

Carlos O Rivera-Perez

Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/42 (2007.01); H02M 1/14 (2006.01); H02M 3/158 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33507 (2013.01); H02M 1/143 (2013.01); H02M 1/4225 (2013.01); H02M 3/1582 (2013.01); H02M 3/33592 (2013.01); H02M 2001/0009 (2013.01); H02M 2001/0038 (2013.01);
Abstract

Systems and methods for providing peak current mode control (PCMC) for power converters. Noise immunity is improved by enhancing the signal-to-noise ratio of an inductor (or switch) current to achieve minimum duty cycle resolution and eliminate subharmonic operation that causes high input and output ripples. Current is sensed and translated to a voltage by a current sense resistor for peak current mode control scheme. A direct current (DC) offset voltage is added only during an on-time of the main switch to increase the signal-to-noise ratio. A leading-edge spike caused by turn-on of the main switch is removed by resetting a filter capacitor of a current sense circuit to zero volts after each switching cycle.

Find Patent Forward Citations

Lam, Cuon. (2021). System and method to enhance signal to noise ratio and to achieve minimum duty cycle resolution for peak current mode control scheme (U.S. Patent No. 11005374). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11005374

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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