基于脉宽脉幅混合调制技术的功耗检测电路  

Power consumption detection circuit based on pulse width-pulseamplitude hybrid modulation strategy

作　　者：邢胜博 马修泉 王长久 马新敏[2] Xing Shengbo;Ma Xiuquan;Wang Changjiu;Ma Xinmin(School of Mechanical Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;School of Optical and Electronic Information,Huazhong University of Science and Technology,Wuhan 430074,China;Shanghai Electro-Mechanical Engineering Institute,Shanghai 201109,China)

机构地区：[1]华中科技大学机械科学与工程学院,武汉430074 [2]华中科技大学光学与电子信息学院,武汉430074 [3]上海机电工程研究所,上海201109

出　　处：《强激光与粒子束》2023年第12期116-121,共6页High Power Laser and Particle Beams

基　　金：广东省基础与应用基础重大项目(2019B030302003)。

摘　　要：线性电源因其干扰小、动态响应速度快等优点被广泛用作半导体激光器驱动电源。针对线性电源中调整管易因功耗过大发生故障的问题,提出了一种脉宽脉幅混合调制方法,利用调整管漏源电压和漏极电流调制生成高频方波,通过平均值电路计算方波平均值,并基于此方法设计了一种调整管功耗检测电路。搭建实验平台对电路进行测试,结果表明,电路检测精度高、硬件成本低、响应速度快,最大检测误差为-2.64%,线性拟合度为0.9987,可广泛用于调整管的功耗检测以及安全区保护。Linear power supply is widely used as the driving power of semiconductor laser because of itsadvantages such as low interference and fast dynamic response.To solve the problem that the regulating tube fails dueto excessive power consumption,this paper proposes a hybrid pulse width-pulse amplitude modulation strategy,whichuses the drain-source voltage and drain-current of the regulating tube to modulate high frequency square wave,andcalculate the mean value of square wave,based on which the regulating tube power consumption detection circuit isdesigned.An experimental platform is built to test the circuit,and the results show that the circuit has the advantagesof excellent detection accuracy,low hardware cost and fast response.The circuit has a maximum relative error of-2.64%and a linearity fit of.It can be widely used for power consumption measurement and safety zoneprotection of regulating tube.

关 键 词：调整管 功耗检测 混合调制 线性电源 半导体激光器 

分 类 号：TM933[电气工程—电力电子与电力传动]