Patent ID: 8004255
Filing Date: 2011-08-23
Classification: H03K

Abstract:
1. A power supply configured for providing DC voltage to IGBT drivers, comprising: an AC voltage controller having a line in main power connector, a line out main power connector and a drive command signal input configured for connection to an IGBT driver; a first power supply unit in connection with said voltage controller and configured to provide a first DC voltage to said IGBT driver; a first capacitor in connection with said drive command signal input and said first power supply unit; and a first diode configured for routing a pulse of power from said voltage controller to said first capacitor when said IGBT driver is in an off condition; wherein said line in main AC power connector is configured for connection to an emitter of said IGBT driver and for receiving an AC current; wherein said line out main AC power connector is configured for connection to a collector of said IGBT driver and for allowing said AC current to exit; wherein said line in main power connector and said line our main power connector are configured for having an AC voltage across them when said IGBT driver is in an off condition; and wherein said first capacitor is configured to have a second DC voltage across said first capacitor that is applied to said first power supply unit when said AC current is received in said line in main power connector.