Patent ID: 8390151
Filing Date: 2013-03-05
Classification: B64D,H02H,H02J,H02M

Abstract:
1. A power distribution module comprising: an input line to receive power from a DC power source; a switch for selectively opening said input line and blocking supply of power from said input line to an output line to be connected to a DC load; a solid state power control configured to control a drive for said switch, said solid state power control being operable to distinguish between a pre-charge mode, at which current is rushing to supply a capacitor in the DC load, and a short circuit mode, at which a short circuit exists; and said solid state power control having a first mode of operation when the pre-charge mode is detected, and a second mode of operation when the short circuit mode is detected, and a third mode of operation under normal conditions, said first mode of operation includes said solid state power control enabling pulse width modulation of said switch, said pulse width modulation operating with an increasing variable duty cycle until a sensed voltage reaches a predetermined value.