激光电容半桥串联谐振充电电源研究.pdf

文档介绍：第卷第期电力电子技术
44 3 ,
2010 年 3 月 Power Electronics March 2010
激光电容半桥串联谐振充电电源研究
撒昱曹启明王升平高惠敏
, , ,
天津大学天津
( , 300072)
摘要在重复率脉冲固体激光器中由于储能电容需要频繁的充放电通常采用谐振充电电路以适应其负载的大范
: , ,
围变化为此研制了开关频率为充电电流为最高充电电压为的半桥串联谐振充电电路该电
。 20 kHz, A, kV 。
路工作于电流断续模式开关管的开通和关断均为软开关通过对周期电压电流递推公式的分析表明该工作模式
, 。、,
中每个周期的平均充电电流均为恒定应用递推公式计算稳态和暂态谐振电容电压和电流结果显示暂态最大工作
。,
电压是稳态最大电压的倍暂态最大电流为稳态最大峰值电流的倍为谐振电容和开关管的选取提供了依据
2 , , 。
关键词激光电源半桥串联谐振软开关电容充电
: ; ; ;
中图分类号文献标识码文章编号
:TM910;TN248 :A :1000-100X(2010)03-0014-03
Research on Half-bridge Series Resonant Soft-switch Charger
of Laser Capacitance
SA Yu, CAO Qi-ming, WANG Sheng-ping, GAO Hui-min
(Tianjin University, Tianjin 300072, China)
Abstract:In repetitive pulse solid-state laser,energized capacitance needs charging and discharging frequently,which is
usually realized by resonant circuit to suit wide load a half -bridge series resonant charge circuit is developed
which supplies charging current A and maximum charging voltage kV with 20 kHz switch circuit
runs in current interrupt mode,which guarantees transistor opening and closing at soft- periodic voltage and cur-
rent recursion formula are analyzed,and show that average charging current is permanent in each period,transient maxi-
mum voltage of resonant capacitor is twice of the steady state,and t