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Sparkle suppression circuit to protect the contact terminals of operation light bulbs

  • US 6,469,456 B2
  • Filed: 03/22/2001
  • Issued: 10/22/2002
  • Est. Priority Date: 03/22/2001
  • Status: Expired due to Fees
First Claim
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1. A sparkle suppression circuit for protecting contact terminals of operation light bulbs, which comprises:

  • a power supply to provide power for the suppression circuit;

    a driving circuit to drive a switch of a load loop;

    a sensor circuit to detect sensor signals of the load loop and to output the sensor signals;

    a control circuit including a microprocessor for receiving and processing the sensor signals and generating and transmitting a driving signal to the driving circuit to control the switch of the load loop; and

    wherein when the control circuit detects abnormal sensor signals, indicating that the load loop is not functioning correctly, the driving signal is sent out to shut off the switch of the load loop, terminating the power output, the load being the operation light bulb.

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