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Apparatus for starting drive of load by high-voltage battery

  • US 6,515,455 B2
  • Filed: 08/24/2001
  • Issued: 02/04/2003
  • Est. Priority Date: 08/25/2000
  • Status: Expired due to Fees
First Claim
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1. An apparatus for starting the drive of a load by a high-voltage battery, comprising:

  • a combination battery including a plurality of cells connected together in series;

    a power feed path between the combination battery and the load;

    a switching element for selectively blocking and unblocking the power feed path, the switching element being changed to its on state when receiving a drive voltage;

    a starting switch;

    a drive circuit connected with at least one cell among the cells in the combination battery and using said at least one cell as a power source to generate the drive voltage when the starting switch is moved to its on position, the drive circuit applying the drive voltage to the switching element;

    a power supply circuit connected with the power feed path and the switching element, and receiving an output voltage from the combination battery and starting to operate when the switching element is changed to its on state, the power supply circuit dropping the output voltage from the combination battery to generate a dropped voltage; and

    means for changing a power source for setting the switching element in its on state from said at least one cell to the power supply circuit in response to the dropped voltage generated by the power supply circuit.

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