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:
Jun. 08, 2004
Filed:
Aug. 20, 2002
Alan Michael Johnson, Richardson, TX (US);
Thomas L. Fowler, Garland, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A switching power supply or switching regulator is provided with a control circuit that controls a switching signal to a first switch. The switching signal is also coupled to a second switch in an inverted state, such as the first and second switches are switched “ON” and “OFF” in opposing states. The first switch and the second switch are coupled through a common node. The second switch is also coupled to ground. An inductor is coupled to the common node and an output capacitor. The switching signal generates an operating current through the inductor that charges the output capacitor to provide a regulated voltage at an output terminal. The second switch is designed to handle the small reverse current that occurs when the first switch is turned off preventing the regulator from entering a discontinuous mode during light load conditions.