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Redundant safety circuit for squib testing

  • US 20030218462A1
  • Filed: 05/23/2002
  • Published: 11/27/2003
  • Est. Priority Date: 05/23/2002
  • Status: Active Grant
First Claim
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1. An apparatus for measuring the resistance of a squib, comprising:

  • an input for receiving a power supply;

    a circuit electrically connected to the input for limiting the power supply, the circuit including;

    voltage limiting means for limiting a voltage output of the circuit to a level insufficient to ignite the squib, and current limiting means for limiting a current output of the circuit, the current limiting means being responsive to a current supplied upon activation of the voltage limiting means to limit the energy supplied by the circuit to a predetermined level following activation of the voltage limiting means.

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