摘要
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。
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
出处
《火箭推进》
CAS
2012年第1期68-71,75,共5页
Journal of Rocket Propulsion
关键词
脉宽调制
推挽方式
高压发生电路
绝缘电阻测试
PWM
push-pull mode
high-voltage generating circuit
insulation resistance test
