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Portable power supply

  • US 20040008009A1
  • Filed: 03/20/2003
  • Published: 01/15/2004
  • Est. Priority Date: 03/20/2002
  • Status: Active Grant
First Claim
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1. A power supply comprising an internal combustion engine, a generator driven by the engine to generate a first AC power, a rectifier that rectifies the first AC power to a first DC power, an inverter that receives the first DC power as a first input and that generates a second AC power, an electrical storage device that stores electrical energy to supply a second DC power, a DC/DC converter that converts the second DC power to a third DC power, the third DC power provided as a second input to the inverter, the inverter also converting the third DC power to the second AC power, and a controller that controls at least the rectifier and the DC/DC converter, the controller selectively enabling one of the rectifier and the DC/DC converter to provide one of the first DC power and the third DC power, respectively, to the inverter, or selectively enabling the rectifier and the DC/DC converter to provide the first and third DC powers to the inverter at the same time.

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