新型零电压双极性窄脉冲产生电路的设计与研究

Design and Studies of a Novel ZVS Bipolar Pulse Generation Inverter for Flat DBD Lamp

为了提高逆变电路的转换效率,本文设计并给出了一种新型的零电压双极性窄脉冲产生电路。该逆变电路包含两个反激逆变电路部分,通过控制两反激逆变电路输出脉冲的相位差可以实现对前后两次放电时间间隔的调节。为了验证上述电路模型,设计并制作了基于12英寸介质阻挡放电平面光源的逆变电路。实验结果表明,该逆变电路可以实现零电压开关,因而提高了电路的转换效率,同传统双极性窄脉冲电路相比,其效率提高了约20%。

A novel zero-voltage switching （ZVS） bipolar pulse generation circuit was proposed to im- prove the efficiency of the inverter. The circuit comprises two flyback inverters. The time interval of dis- charge was controlled by adjusting the phase of pulse waveform generated by the two flyback inverters. The circuit was built and demonstrated based on a 12 inch flat DBD lamp. It shows that ZVS was achieved by the proposed inverter. An improved luminous efficiency about 20% could be achieved compared with the traditional bipolar pulse generation circuit.