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:
Aug. 13, 2013
Filed:
Apr. 01, 2011
Yu-ming Chen, Hsinchu, TW;
Pei-lun Huang, Zhubei, TW;
Kuo-chin Chiu, Xinfeng Township, Hsinchu County, TW;
Yu-Ming Chen, Hsinchu, TW;
Pei-Lun Huang, Zhubei, TW;
Kuo-Chin Chiu, Xinfeng Township, Hsinchu County, TW;
Richpower Microelectronics Corporation, British West Indies, KY;
Abstract
A voltage detector includes a zener diode having a cathode connected to a detect terminal of the voltage detector, a junction field effect transistor having an input terminal connected to an anode of the zener diode, and a resistor connected between an output terminal and a control terminal of the junction field effect transistor. When the voltage on the detect terminal is higher than the breakdown voltage of the zener diode, the junction field effect transistor produces a current flowing through the resistor, and thereby a detection signal can be obtained from the voltage across the resistor.