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CIRCUIT FOR DETECTING FAULTY DIODE

  • US 20100289519A1
  • Filed: 12/07/2009
  • Published: 11/18/2010
  • Est. Priority Date: 05/15/2009
  • Status: Abandoned Application
First Claim
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1. A circuit for detecting faulty diode comprising:

  • a diode, having an anode connected to a voltage supply;

    a resistor, having a first end connected to a cathode of the diode;

    a transistor, having a drain connected to a second end of the resistor and a source that is grounded;

    a differential amplifier, having a positive terminal connected to the drain of the transistor, a negative terminal connected to a reference voltage input terminal for receiving a reference voltage, and an output terminal connected to a gate of the transistor; and

    a buffer, having an input terminal connected to a gate of the transistor, and a signal output terminal used to output a faulty signal.

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