<p>A ballast control integrated circuit for a ballast driving a high intensity discharge (HID) lamp. The control integrated circuit has a first circuit for controlling a DC to DC converter receiving a first DC voltage and providing an increased DC voltage. The first circuit includes a driver for providing a pulsed signal to drive a first switch coupled to a flyback transformer of the DC to DC converter. A second circuit controls a DC to AC converter, the second circuit controlling a switching circuit receiving the increased DC voltage and driving the HID lamp with an AC voltage. The second circuit has a driver circuit for driving the switching circuit. The switching circuit is an H-bridge switching circuit coupled to drive the HID lamp.</p>
申请公布号
WO2009099408(A1)
申请公布日期
2009.08.13
申请号
WO2008US01566
申请日期
2008.10.06
申请人
INTERNATIONAL RECTIFIER CORPORATION;WILHELM, DANA;GREEN, PETER