CAJ | 학술논문

提出一种应用于功率放大器的高精度温度补偿电路，采用硅二极管与电阻串并联的方法实现功率放大器的温度补偿，保证功率放大器在不同温度下均可以正常稳定地工作，且电路结构简单、易于调试。应用PCB板实现了具有温度补偿的功率放大器电路，测试结果表明在-40~80℃的温度范围内，功率放大器的静态电流只有3.8%的变化。因此该方法可以实现在较宽的温度范围内对功率放大器进行有效的高精度温度补偿，可以广泛应用于功率放大器、特别是对温度补偿量要求较高的功率放大器及大功率放大器的设计中。
제출일충응용우공솔방대기적고정도온도보상전로，채용규이겁관여전조천병련적방법실현공솔방대기적온도보상，보증공솔방대기재불동온도하균가이정상은정지공작，차전로결구간단、역우조시。응용PCB판실현료구유온도보상적공솔방대기전로，측시결과표명재-40~80℃적온도범위내，공솔방대기적정태전류지유3.8%적변화。인차해방법가이실현재교관적온도범위내대공솔방대기진행유효적고정도온도보상，가이엄범응용우공솔방대기、특별시대온도보상량요구교고적공솔방대기급대공솔방대기적설계중。
A high precision temperature compensation circuit for power amplifier are presented in this paper. A silicon diode and resistor series?parallel method is adopted to realize the temperature compensation circuit which can guarantee stability and reliability of the power amplifier under different temperature conditions. The circuit structure is simple and easy to debug. The power amplifier with the proposed temperature compensation circuit is implemented by using PCB. The measured results show that the variation of the quiescent current of the power amplifier is only 3.8% over the temperature range of -40~+80 ℃. There?fore,the proposed circuit can make high?accuracy temperature compensation for the power amplifier in a wide temperature range,and can be widely applied to power amplifiers,especially to high power amplifiers and power amplifiers with high?accuracy temperature compensation requirements.