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Pump and pump control circuit apparatus and method

  • US 20080152508A1
  • Filed: 10/31/2007
  • Published: 06/26/2008
  • Est. Priority Date: 11/26/2001
  • Status: Active Grant
First Claim
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1. A pump control circuit for use with a pump, the circuit comprising:

  • a pressure sensor capable of sensing a pressure in the pump;

    a microcontroller coupled to the pressure sensor, the microcontroller programmed to generate a control signal when the sensed pressure is approaching a shut-off pressure; and

    an output power stage coupled to receive the control signal from the microcontroller and to provide an increased current to the pump as the sensed pressure approaches the shut-off pressure.

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