Patent ID: 7919956

Claim:
A start-up method for controlling start-up of a high voltage power distribution circuit, the start-up method comprising: generating ramped current via a current source; feeding the generated ramped current to a first capacitor which is connected with a non-inverting input of an operational amplifier connected between the current source and a MOSFET, and charging the first capacitor; feeding the generated ramped current from the first capacitor to a second capacitor connected from an output of the MOSFET to the non-inverting input of the operational amplifier, the second capacitor comprising a feedback capacitor; discharging the feedback capacitor; and enabling the MOSFET when the feedback capacitor is fully discharged; wherein the ramped current is generated at a delayed rate such that the ramped current remains ramped when fed into the first capacitor and then into the feedback capacitor.