| http://www.w3.org/ns/prov#value | - The ignition system protection circuit of claim 17 wherein said reference current source provides a current Iref according to the equation Iref=Vt*1n(K)/R3;wherein Vt is defined as a thermal voltage proportional to temperature, K is a constant, and R3 is a third resistor included within said current source. 20.
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