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Wheelchair using one or more DC to DC converters to power accessories

  • US 6,222,282 B1
  • Filed: 03/19/1998
  • Issued: 04/24/2001
  • Est. Priority Date: 03/19/1998
  • Status: Expired due to Fees
First Claim
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1. An electromotive wheelchair comprising:

  • a drive wheel;

    a electric motor operably coupled to the drive wheel;

    a main power source operably connected to the motor for supplying power to the motor;

    a control unit for controlling the motor; and

    an accessory power source adapted to be energized by the main power source for providing an accessory power output at an accessory voltage which is independent of fluctuations in the power supplied to the motor wherein the accessory power source includes a DC-DC switching-mode regulator operably connected to the main power source and the accessory power output has an adjustable output voltage.

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