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[1]石 芳,郑文松.脉宽调制芯片在高压发生电路中的应用[J].火箭推进,2012,38(01):68-71.
　SHI Fang,ZHENG Wen-song.Application of pulse-width modulation chip in high-voltage generating circuit[J].Journal of Rocket Propulsion,2012,38(01):68-71.
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脉宽调制芯片在高压发生电路中的应用

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 38 期数: 2012年01期 页码: 68-71 栏目: 测控与试验 出版日期: 2012-02-15
Title:
Application of pulse-width modulation chip in high-voltage generating circuit
文章编号:
1672-9374(2012)01-0068-05
作者:
石 芳; 郑文松
西安航天动力研究所，陕西 西安 710100
Author(s):
SHI Fang;  ZHENG Wen-song
Xi’an Aerospace Propulsion Institute, Xi’an 710100, China
关键词:
脉宽调制; 推挽方式; 高压发生电路; 绝缘电阻测试
Keywords:
PWM;  push-pull mode;  high-voltage generating circuit;  insulation resistance test
分类号:
V434-34
文献标志码:
A
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。
Abstract:
A push-pull high-voltage generating circuit is introduced, which takes TL494 as a control 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

参考文献/References:

[1]PRESSMAN A I. 开关电源设计（第二版）[M]. 王志强, 译.北京: 电子工业出版社, 2005.

相似文献/References:

[1]尤裕荣,袁洪滨,王春民,等.PWM高速开关阀动态调节特性仿真研究[J].火箭推进,2012,38(05):24.
　YOU Yu-rong,YUAN Hong-bin,WANG Chun-min,et al.Simulation of dynamic regulating characteristics of PWM high-speed on-off valve[J].Journal of Rocket Propulsion,2012,38(01):24.

备注/Memo

收稿日期：2011-06-20；修回日期：2011-08-26
作者简介：石芳（1982—），女，助理工程师，研究领域为航天发动机测控技术

更新日期/Last Update: 1900-01-01