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Voltage regulator circuitry operable in a high temperature environment of a turbine engine

  • US 8,952,674 B2
  • Filed: 06/29/2012
  • Issued: 02/10/2015
  • Est. Priority Date: 06/29/2012
  • Status: Active Grant
First Claim
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1. A voltage regulator circuitry adapted to operate in a high-temperature environment of a turbine engine, the voltage regulator circuitry comprising:

  • a constant current source comprising at least a first semiconductor switch and a first resistor connected between a gate terminal and a source terminal of the first semiconductor switch;

    a second resistor having a first lead connected to the gate terminal of the first semiconductor switch and a second lead connected to an electrical ground, wherein the constant current source is coupled to generate a voltage reference across the second resistor; and

    a source follower output stage comprising a second semiconductor switch and a third resistor connected between the electrical ground and a source terminal of the second semiconductor switch, wherein the first lead of the second resistor is connected to apply the generated voltage reference to a gating terminal of the second semiconductor switch.

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