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:
Apr. 04, 1989

Filed:

Apr. 02, 1987
Applicant:
Inventor:

Walter S Gontowski, Jr, Thompson, CT (US);

Assignee:

Cherry Semiconductor Corporation, East Greenwich, RI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 93 ; 361 18 ; 361 87 ;
Abstract

A modulator circuit for providing a modulating signal to the timing circuit in a constant off time current mode controller so as to extend the off time in response to an overload condition. A switch connects the output voltage from a current sense amplifier to the modulator circuit when the current mode controller requests maximum current. An overload condition exists when the voltage from the current sense amplifier exceeds a first threshold. The off time is extended to approach infinity when a second threshold is exceeded.


Find Patent Forward Citations

Gontowski, Jr, Walter. (1989). Over-current timer modulator (U.S. Patent No. 4819122). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4819122

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

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