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:
Mar. 14, 2000
Filed:
Jul. 07, 1998
Hengchun Mao, Plano, TX (US);
Vijayan J Thottuvelil, Plano, TX (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
For use in a buck+boost DC/DC power converter having first and second switches, a switching controller, a method of controlling the first and second switches and buck+boost DC/DC power converters employing the switching controller or the method. In one embodiment, the switching controller includes: (1) a regulation circuit that provides a drive signal and (2) a drive signal generator, coupled to the regulation circuit, that generates a pulse of fixed duration based on the drive signal and provides the pulse and the drive signal to the first and second switches. In another embodiment, the switching controller further includes a comparison circuit that compares an input voltage with an output voltage and generates a control signal based thereon to a drive signal generator that routes a pulse and a drive signal to the first and second switches.