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. 11, 2006
Filed:
Sep. 15, 2003
Thomas Lane Fowler, Garland, TX (US);
David Gene Daniels, Dallas, TX (US);
Alan Michael Johnson, Richardson, TX (US);
Thomas Lane Fowler, Garland, TX (US);
David Gene Daniels, Dallas, TX (US);
Alan Michael Johnson, Richardson, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A buck regulator switching power supply () selectively enabling a low side device to effectively recharge a bootstrap capacitor (C) during a high duty cycle of operation. The switching power supply () includes a gate driver () driving a gate of a high side FET (Q) responsive to a controller circuit (). Controller circuit () includes a controller () responsively controlled by a comparator (). Comparator () senses the charge of the charging side of the bootstrap capacitor (C) as compared to a voltage (V). The comparator () also responsively generates an output signal on an output line () as a function of the voltage at the phased output.