the present invention relates to an ipl apparatus that is used as a hair removing machine or cures skin ailments by periodically irradiating xenon lamp light on the user &# 39 ; s skin , the ipl apparatus comprises : a double - voltage unit which has a double - voltage capacitor , and outputs a high voltage by superposing an inputted supply voltage with a voltage charged in the double - voltage capacitor ; a charging capacitor which charges energy for turning on a xenon lamp by accumulating electric charges supplied from the double - voltage unit ; a reference voltage generator which sets a charging voltage level charged in the charging capacitor ; and a switch unit which is positioned between the double - voltage unit and the charging capacitor , and switches on and off the movement of the electric charges to the charging capacitor from the double - voltage unit by setting an output of the reference voltage generator to a control signal .