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. 19, 2007
Filed:
Jul. 01, 2005
Pao-chuan Lin, Lunbei Township, Yunlin County, TW;
Chin-hui Wang, Banchiau, TW;
Liang-pin Tai, Tainan, TW;
Pao-Chuan Lin, Lunbei Township, Yunlin County, TW;
Chin-Hui Wang, Banchiau, TW;
Liang-Pin Tai, Tainan, TW;
Richtek Technology Corp., Hsinchu, TW;
Abstract
For a PWM controller chip in a voltage converter to switch a pair of high side and low side switches connected with a phase node therebetween, a circuit comprises a sense resistor connected between a multi-function pin on the PWM controller chip and the phase node, and an enable arrangement, a power sensing arrangement, and an over-current protection arrangement to detect the voltage on the multi-function pin for accomplishing enable function, power sensing, and over-current protection, respectively.