霍尔取样在短波发射机中的应用

Application of Hall sampling in short wave transmitter

文章以霍尔取样模块为基础,设计了一系列基于霍尔模块的电压、电流取样电路,取代原来发射机的电阻取样电路,大大提高了模拟量取样的精确性、快速性和抗干扰性。大功率短波发射机模拟量的取样及数字化是困扰发射机实现自动化的瓶颈,基于霍尔模块的电压、电流取样电路使发射机模拟量数字化得到了保障,同时提高了取样的精度和速度,减少了计算误差,可以较好地应用于大功率短波发射机的自动化改造。

Based on the Hall sampling module,this paper designs a series of voltage and current sampling circuits based on the Hall module to replace the resistance sampling circuit of the transmitter,greatly improving the accuracy,rapidity and anti-interference of analog quantity sampling.The sampling and digitization of analog quantity of high-power shortwave transmitter is the bottleneck of transmitter automation.The voltage and current sampling circuit based on Hall module ensures the digitization of transmitter analog quantity,improves the accuracy and speed of sampling,reduces the calculation error,and can be better applied to the automation transformation of high-power shortwave transmitter.