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:
Sep. 07, 2010
Filed:
Jun. 27, 2008
Yi-sheng Liu, Hsinchu, TW;
Yi-Sheng Liu, Hsinchu, TW;
Fitipower Integrated Technology, Inc., Miaoli County, TW;
Abstract
A voltage converter includes a pulse width modulation controller chip, an enabling transistor, a first resistor, a pull-up transistor, a pull-down transistor, and a low pass filter. The pulse width modulation controller chip includes a plurality of pins, a gate control logic circuit, an enabling comparator, a first gate driver, a second gate driver, a current source, a first comparator, a power-on reset circuit, an inductor current sensor, a counter and current step generator, and an oscillator. The plurality of pins include a Vcc pin, a BOOT pin, a PHASE pin, a UGATE pin, a LGATE pin, and a pin OCSET. The current source, the first resistor, the inductor current sensor, the counter and current step generator, the oscillator, and the pull-down transistor constitute a light-load circuit.