CAJ | 학술논문

基于能量守恒原理推导出非线性GaAs光电导开关电路的差分公式,代入实验数据计算出开关的瞬态电压、电阻、功率.该方法解决了长期以来非线性GaAs光电导开关的瞬态特性难于测量的问题.通过GaAs光电导开关的瞬态电压曲线知,在锁定期间开关平均电场强度总是大于耿氏阈值,并随时间单调递增.通过对比开关与其电路电源的瞬态功率曲线,证明了电源功率不足是导致GaAs光电导开关从锁定状态进入自关断状态的根本原因,因此提出了在锁定期间通过改变电路的功率分布使开关可控关断的思想.
기우능량수항원리추도출비선성GaAs광전도개관전로적차분공식,대입실험수거계산출개관적순태전압、전조、공솔.해방법해결료장기이래비선성GaAs광전도개관적순태특성난우측량적문제.통과GaAs광전도개관적순태전압곡선지,재쇄정기간개관평균전장강도총시대우경씨역치,병수시간단조체증.통과대비개관여기전로전원적순태공솔곡선,증명료전원공솔불족시도치GaAs광전도개관종쇄정상태진입자관단상태적근본원인,인차제출료재쇄정기간통과개변전로적공솔분포사개관가공관단적사상.
The transient resistance, voltage, and power of a nonlinear GaAs photoconductive semiconductor switch (PCSS)are presented by the finite difference formula to deal with the experiment data, based on the conversation of energy in the switch circuit. This method resolves the problem of directly measuring the transient characteristics of PCSS in nonlinear mode. The curve of transient voltage shows that the average electric field of PCSS in the lock-on period is always higher than the Gunn threshold,and increases monotonically. By comparing the transient power curves of the PCSS and the elec-trical source,it is demonstrated directly that the power shortage leads to the PCSS from the lock-on state into the self-turnoff state,so a controllable turnoff of the PCSS in lock-on by changing the distribution of the circuit power is predic-ted.