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:
Dec. 11, 2018
Filed:
Mar. 03, 2016
Microchip Technology Incorporated, Chandler, AZ (US);
Jacobus Albertus van Eeden, Chandler, AZ (US);
Yong Yuenyongsgool, Gilbert, AZ (US);
Keith Curtis, Gilbert, AZ (US);
MICROCHIP TECHNOLOGY INCORPORATED, Chandler, AZ (US);
Abstract
A three input voltage comparator provides termination of a pulse width modulation (PWM) output in a switched mode power supply. Shutdown of the PWM signal occurs when a sense current from the switching transistors exceeds either or both of the limit and error current references. The three input voltage comparator replaces the generally used two input voltage comparator and also eliminates the necessity of having to provide a voltage clamping circuit on the output of the voltage error amplifier in the switched mode power supply. The three input voltage comparator may also comprise selectable polarity control for more versatile integration of it into a switched mode power supply design.