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DC pump drive module

  • US 5,757,151 A
  • Filed: 05/02/1996
  • Issued: 05/26/1998
  • Est. Priority Date: 05/02/1996
  • Status: Expired due to Term
First Claim
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1. A water pump modular motor drive system comprising:

  • a heat exchanger;

    a fluid pump for pumping fluid to said heat exchanger;

    a motor drive mounted on said heat exchanger and connected to said fluid pump for operating same;

    a power source having a nominal operating range and transients, said heat exchanger adapted to cool said power source, said fluid pump and said motor drive;

    a housing having a base mounted on said heat exchanger;

    a power transistor module mounted on said base;

    a power interface circuit electrically connected to said power transistor module and located above said base in said housing;

    a signal control circuit located above said power interface circuit in said housing;

    a low voltage power supply circuit located above said signal control circuit in said housing;

    said signal control circuit including a shut off circuit for sensing voltage level on said power source and turning off said fluid pump and said motor drive when said transients are above a first predetermined level and turning on said fluid pump and said motor drive when said transients return below a second predetermined level.

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