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Circuit arrangement, and signaling light provided with the circuit arrangement

DC
  • US 6,094,014 A
  • Filed: 08/03/1998
  • Issued: 07/25/2000
  • Est. Priority Date: 08/01/1997
  • Status: Expired due to Term
First Claim
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1. A circuit arrangement suitable for operating a semiconductor light source, said circuit arrangement comprising:

  • input terminals for connecting a supply voltage;

    input filter means;

    a converter comprising a control circuit; and

    output terminals for connecting the semiconductor light source, wherein said converter generates a current for application to said semiconductor light source, and said control circuit controls said converter to produce a predetermined value of said current at said output terminals, said predetermined value of said current corresponding to an output voltage which is less than a predetermined threshold voltage,characterized in that the circuit arrangement further comprises voltage detection means for detecting the output voltage at the output terminals, said voltage detection means generating a detection signal when the output voltage exceeds said predetermined threshold voltage.

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