Patent ID: 7203048
Filing Date: 2007-04-10
Classification: H02J

Abstract:
1. A DC to DC controller for controlling an inrush current from a DC to DC converter to a battery system having an internal isolating switch, said DC to DC controller comprising: a first path configured to accept a first input signal representative of an output power level of said DC to DC converter, said first path configured to provide a first control signal; a second path configured to accept said first input signal, said second path configured to provide a second control signal if said internal isolating switch is in an open state; a regulating circuit configured to accept said first and second control signals and to regulate said output power level to a first level if controlled by said first control signal and to regulate said output power level to a second level if controlled by said second control signal, wherein said regulating circuit is further configured to substantially reduce said inrush current when said internal isolating switch changes from said open state to a closed state; and a switch state detection circuit configured to detect a state of said internal isolating switch and provide a switch state control signal representative of a state of said internal isolating switch to said second path.