Patent ID: 8446097
Filing Date: 2013-05-21
Classification: H05B

Abstract:
1. A discharge lamp ignition apparatus for igniting a discharge lamp, the discharge lamp ignition apparatus comprising: a direct-current power supply generation circuit unit for supplying a direct-current power supply voltage; a resonant circuit unit constituted from an inductor and a capacitor, for applying a resonant voltage generated by the inductor and the capacitor to the discharge lamp; a voltage detection circuit unit for detecting the resonant voltage being applied to the discharge lamp; an inverter circuit unit for, based on the direct-current power supply voltage supplied by the direct-current power supply generation circuit unit, alternating-current driving the resonant circuit unit at a drive frequency; and a control circuit unit for monitoring the resonant voltage detected by the voltage detection circuit unit and controlling the inverter circuit unit based on the resonant voltage, wherein the control circuit unit: the inverter circuit unit alternating-current drives the resonant circuit unit at the discharge-lamp-ignition drive frequency established by the control circuit unit.