一种高精度低频高压源的设计
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摘要
针对传统模拟分立元件设计电压源具有参数准确度低,功耗大,电路规模大,不便于实际使用等特点,同时用于低频信号输出时,其需要RC值很大,大电阻、大电容在制造上很困难,参数准确度难以保证,而且体积大,漏电损耗也大,加上传统的模拟移相(如:阻容移相、变压器移相等)以及变压器在低频段磁芯巨大不易使用等不足,提出了数字波形合成加模拟高压放大电路的高精度低频高压源的设计方法,并对各环节电路进行分析计算与仿真。
The voltage source designed for the traditional analog discrete components has the characteristics of low parameter accuracy,large power consumption,large circuit scale,and inconvenience in practical use.At the same time,when used for low-frequency signal output,it requires a large RC value and a large resistance and a large capacitance.It is very difficult to manufacture.The parameter accuracy is difficult to guarantee.The volume,and the leakage loss is also large.In addition,the traditional analog phase shift(such as:RC phase shift,transformer phase shift)and the transformer is too difficult to use in the low frequency band.Therefore,the design method of high-precision low-frequency high-voltage source of digital waveform synthesis plus analog high-voltage amplifier circuit is proposed,and the calculation and simulation of each link circuit are carried out.
The voltage source designed for the traditional analog discrete components has the characteristics of low parameter accuracy,large power consumption,large circuit scale,and inconvenience in practical use.At the same time,when used for low-frequency signal output,it requires a large RC value and a large resistance and a large capacitance.It is very difficult to manufacture.The parameter accuracy is difficult to guarantee.The volume,and the leakage loss is also large.In addition,the traditional analog phase shift(such as:RC phase shift,transformer phase shift)and the transformer is too difficult to use in the low frequency band.Therefore,the design method of high-precision low-frequency high-voltage source of digital waveform synthesis plus analog high-voltage amplifier circuit is proposed,and the calculation and simulation of each link circuit are carried out.
引文
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[4] 陈希有.电路理论基础[M].第3版.北京:高等教育出版社,2006.
[5] 胡寿松.自动控制原理[M].第6版.北京:科学出版社,2013.
[6] 童诗白,华成英.模拟电子技术基础[M].第4版.北京:高等教育出版社,2006.
[7] 石小燕,任先文,刘平,等.基于MOSFET的高重复频率高压脉冲源设计[J].强激光与粒子束,2019,31(04):134-137.
[8] 张志勇.基于FPGA的高压信号源设计[D].河北大学,2015.
[9] 石小燕,丁恩燕,梁勤金,等.20 kV/20 kHz/100A高压脉冲源设计[J].强激光与粒子束,2018,30(04):105-109.