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:
Apr. 27, 2010
Filed:
Sep. 06, 2007
Robert Bell, Chandler, AZ (US);
Steven Joseph Schulte, Scottsdale, AZ (US);
Robert Bell, Chandler, AZ (US);
Steven Joseph Schulte, Scottsdale, AZ (US);
National Semiconductor Corporation, Santa Clara, CA (US);
Abstract
The invention relates to a half-bridge power converter controller that employs current mode control. The power converter controller includes pulse modulation circuitry, error circuitry, and stabilization circuitry. The stabilization circuitry stabilizes the voltage at the mid-point of a half-bridge power converter input capacitor circuit. The input capacitor circuit mid-point voltage is stabilized by selectively adjusting the on-times of the high-side switch and low-side switch of a half-bridge power converter. This adjustment tailors the current that is provided to the input capacitor circuit and thus maintains the mid-point voltage near a desired value.