CAJ | 학술논문

针对弹光调制需要高Q值、高电压、高稳定性驱动电路的特点，设计了一种基于LC谐振升压原理的高压驱动电路，该电路主要由输入波形转换电路、功率放大电路、充放电回路、阻抗匹配电路和反馈信号采集电路组成。采用低磁导率磁芯制作的高品质因数电感，使电路在输出高电压的同时，降低了对直流电源电压的要求。实验结果表明：在弹光调制干涉具谐振频率50．04 kHz下，谐振电路的输出电压在0～1200 VP-P可调，所需直流电源电压最大幅值为29 V。电路具有较强的带负载能力，可以满足弹光调制晶体的驱动需求。
침대탄광조제수요고Q치、고전압、고은정성구동전로적특점，설계료일충기우LC해진승압원리적고압구동전로，해전로주요유수입파형전환전로、공솔방대전로、충방전회로、조항필배전로화반궤신호채집전로조성。채용저자도솔자심제작적고품질인수전감，사전로재수출고전압적동시，강저료대직류전원전압적요구。실험결과표명：재탄광조제간섭구해진빈솔50．04 kHz하，해진전로적수출전압재0～1200 VP-P가조，소수직류전원전압최대폭치위29 V。전로구유교강적대부재능력，가이만족탄광조제정체적구동수구。
Because photoelastic modulator requires the drive circuit of high Q value,high voltage and high stability,a high voltage drive circuit based on LC resonant boost principle is designed. The circuit is mainly composed of the in-put waveform converting circuit,power amplifier circuit,charge and discharge circuit,impedance matching circuit and feedback signal acquisition circuit. A high quality factor inductance is made by low permeability core. The output voltage of the circuit is higher,while the DC power supply voltage requirements is lower. The experiments show that:at the resonant frequency 50. 04 kHz of photoelastic modulator,the adjustable output voltage of the circuit is 0 to 1200VP-P,the maximum supply voltage of input DC power is 29 V. This circuit has a strong load capacity and can fully meet the demand to drive the photoelastic modulator crystal.