Patent ID: 7679337
Filing Date: 2010-03-16
Classification: B60L,H02J,Y02T,Y10S

Abstract:
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, and a 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.