CAJ | 학술논문

针对电源电压准确采样的需求,设计一种适用于静电除尘用高频电源直流母线电压检测电路.在介绍高精度线性光耦 HCNR201工作原理的基础上,设计新型的高频电源直流母线电压检测电路,采用电阻分压的方式进行电压检测,并采用高精度光耦 HCNR201来实现高压侧与低压侧的电气隔离.给出了高频电源的主电路设计及其实验结果,并进行相应的曲线拟合分析.实验结果表明:该电路具有很好的精度和线性度,能广泛应用于各种高压检测场合.
침대전원전압준학채양적수구,설계일충괄용우정전제진용고빈전원직류모선전압검측전로.재개소고정도선성광우 HCNR201공작원리적기출상,설계신형적고빈전원직류모선전압검측전로,채용전조분압적방식진행전압검측,병채용고정도광우 HCNR201래실현고압측여저압측적전기격리.급출료고빈전원적주전로설계급기실험결과,병진행상응적곡선의합분석.실험결과표명:해전로구유흔호적정도화선성도,능엄범응용우각충고압검측장합.
@@@@According to the accurate sampling needs of the power voltage, designs a kind of DC bus voltage detection circuit that applies to the high frequency power supply in electrostatic precipitation. Based on the introduction of the principle of high precision linear light-coupler HCNR201 works, the paper designs the new-style DC bus voltage detection circuit of high frequency power supply, and uses sampling resistor divider way to realize the voltage detection, and by using the high precision light-coupler HCNR201 to realize the electrical isolation of the high voltage side and the low voltage side. The paper presents the design of main circuit of high frequency power supply, the experiment results which based on the circuit and the corresponding curve fitting analysis are given. The experiment shows that the circuit with high accuracy and linearity can be widely used in high voltage detection occasions.