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. 16, 2010
Filed:
Mar. 19, 2007
Beng Hwee Ong, Singapore, SG;
Wee Liang Lien, Singapore, SG;
Min Jie Wu, Singapore, SG;
Chang-fu Kuo, Hsinchu, TW;
Beng Hwee Ong, Singapore, SG;
Wee Liang Lien, Singapore, SG;
Min Jie Wu, Singapore, SG;
Chang-Fu Kuo, Hsinchu, TW;
Mediatek Singapore Pte Ltd., Ayer Rajah Crescent, SG;
Abstract
A system capable of limiting a current through a load and a method thereof. The system comprises a current sensor, a determination circuit, and a current mirror circuit. The current sensor, coupled to the load, produces a current indication indicating the current. The determination circuit, coupled to the current sensor, generates a short-circuit signal when the current exceeds a predetermined threshold. The current mirror circuit, coupled to a voltage source, the current sensor and the determination circuit, comprises a current mirror and a bypass path, delivers a mirrored current from the current mirror to the load upon receiving the short-circuit signal, and passes the current from the voltage source through the bypass path to the load in the absence of the short-circuit signal.