摘要
LCC串并联谐振变换电路与Buck-Boost有源功率因数校正电路构成的单管荧光灯单级电子镇流器,由于开关器件既要承受Buck-Boost有源功率因数校正和LCC串并联谐振变换电路的最大电压,又要负载输入和输出电流,需要有良好性能的触发电路.本研究用二极管嵌位方法使触发信号过零,得到了一种具有快速上升沿、下降沿和过零特征的触发电路.采用该触发电路的电子镇流器,能减少开关器件的开通与关断时间,降低开关损耗,开关器件的寿命更长,效率达到91%,功率因数大于0.99.
Based on the integration of a half-bridge resonant inverter and a Buck–Boost active power-factor-correction converter,a single-stage electronic ballast for fluorescent lamps′ switch not only had to withstand the maximum voltage of both of them,but also had to withstand the high currents of input and output stages.For this reason,a high quality control circuit is imperative.In this paper,we presented a new control circuit,which rose and fell faster and could fall to zero.Integrated with this control circuit,...
出处
《郑州大学学报（工学版）》
CAS
2007年第3期83-86,共4页
Journal of Zhengzhou University（Engineering Science）
关键词
电子镇流器
触发电路
开关器件发热
高功率因数
自激控制
electronic ballast
control circuit
MOS switch dissipation
high power factor
self-oscillating control
