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Power supply system

  • US 7,679,337 B2
  • Filed: 11/09/2006
  • Issued: 03/16/2010
  • Est. Priority Date: 11/09/2005
  • Status: Expired due to Fees
First Claim
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1. A power supply system comprising:

  • in a vehicle having an internal combustion engine,a DC generator for generating electric power by power generated from the internal combustion engine or power obtained by braking of the vehicle;

    a capacitor coupled to an output of the DC generator;

    a power converter whose input side is coupled to the capacitor and which is capable of controlling an output voltage or an output current;

    a battery coupled to an output side of the power converter; and

    a load coupled in parallel to the battery,wherein a limit value of the output current is defined as a first current value when a voltage at both ends of the capacitor charged by the DC generator is higher than a voltage at both ends of the battery, anda limit value of the output current is defined as a second current value when a voltage at both ends of the capacitor is substantially equal to a voltage at both ends of the battery,wherein the first current value is set to be smaller than the second current value.

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