CAJ | 학술논문

以TL494为控制核心的脉宽调制推挽式高压发生电路采用脉冲宽度调制和电压反馈推挽技术，可通过调整振荡器频率和采样电阻值，输出多种状态恒定直流高压。本电路结构简单可靠，稳定性高。试验验证表明，满足液体火箭发动机控制电路系统绝缘电阻测试要求。
이TL494위공제핵심적맥관조제추만식고압발생전로채용맥충관도조제화전압반궤추만기술，가통과조정진탕기빈솔화채양전조치，수출다충상태항정직류고압。본전로결구간단가고，은정성고。시험험증표명，만족액체화전발동궤공제전로계통절연전조측시요구。
A push-pull high-voltage generating circuit is introduced, which takes TL494 as a con- trol core, and adopts pulse-width modulation （PWM） and voltage feedback push-pull technologies. It can output a variety of constant DC high-voltage current by adjusting the oscillator frequency and the sampling resistance. The circuit is simple and reliable, and has high stability. The test validation result shows that the circuit can meet the test requirements of insulation resistance in control circuitry of liquid rocket engines