Patent ID: 6624619
Filing Date: 2003-09-23
Classification: H02M,Y10S

Abstract:
A stabilized power unit, comprising:an voltage-increasing capacitor which is charged based on an input voltage and whose voltage is increased after being charged; switching means for carrying out switching operation to alternately switch a charge period and a voltage-increasing period of the voltage-increasing capacitor; an output capacitor which outputs a charged voltage obtained by being charged utilizing a voltage-increasing potential of the voltage-increasing capacitor in the voltage-increasing period, as an output voltage, and stabilizes the charged voltage within a range of the output voltage in steady state through a plurality of the voltage-increasing periods after a start-up is started; and soft start means for controlling the switching means to carry out the switching operation so that the charged voltage always becomes not more than the output voltage in the steady state, at the start-up from when the start-up is started until when the charged voltage is stabilized within the range of the output voltage in the steady state.