汽车HID电子镇流器中逆变电路设计与分析

Design and Analysis of the Inverter in Electronic Ballast for Automotive HID Headlamp

对汽车HID前照灯电子镇流器中的低频逆变电路及自举驱动电路进行了定量分析。该电路具有驱动灵活,控制方便以及电路体积小等优点。试验证明,该自举驱动电路完全可以满足电子镇流器的要求,对启动和稳弧以及抑制声共振有很好的效果。

Low frequency inverter in electronic ballast for HID headlamp and it＇s bootstrap drive circuits are quantitatively analyzed.The inverter can output low frequency AC square wave current and voltage for avoiding acoustic resonant,and the bootstrap circuit can be used to drive flexibly for complex start or restart requirement.Analysis was verified by experimental results.