Patent ID: 6943531
Filing Date: 2005-09-13
Classification: F01L,F02B,F02D,H02P

Abstract:
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, wherein the controller monitors the second AC power, the controller enabling the rectifier and the DC/DC converter to provide the first and third DC powers to the inverter when the second AC power is greater than a preset magnitude.