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. 21, 2011
Filed:
Dec. 07, 2009
Chi-feng Huang, Hsinchu, TW;
Chi-Feng Huang, Hsinchu, TW;
ENE Technology Inc., Hsinchu, TW;
Abstract
A circuit for detecting faulty diode is disclosed, wherein the circuit for detecting faulty diode comprises a diode having an anode connecting to a voltage supply; a first switch having a first end connected to a cathode of the diode; a testing current source connected to the second end of the first switch; a one-shot circuit connected to a control end of the first switch, by which an output signal is generated and transmitted to the control end; and a comparator connected to a reference voltage input terminal for receiving a reference voltage and connected to the second end of the first switch. When the one-shot circuit closes the first switch for a maintaining period to urge the comparator comparing the reference voltage with the voltage applied to the second end of the first switch, whereby a signal used to discriminate whether the diode is fail or not is generated.