基于多级整流滤波的高效特种线性电源研发  

Development of High Efficiency Linear Power Supply

作　　者：李朋飞 范世军 王顺利[2] 范永存 曹文[2] Li Pengfei;Fan Shijun;Wang Shunli;Fan Yongcun;Cao Wen(Sichuan Changhong Battery Co.,Ltd,Sichuan,Mianyang,621000;Southwest University of Science and Technology,Sichuan,Mianyang,621000)

机构地区：[1]四川长虹电源有限责任公司,四川绵阳621000 [2]西南科技大学,四川绵阳621000

出　　处：《电源世界》2019年第4期19-22,共4页The World of Power Supply

摘　　要：针对线性电源效率较低的情况,基于自动控制调整管功耗的设计思路,设计变压器次级多组线圈、多个整流电路、多个固态继电器接入滤波电路,用于特种线性电源供能。同时,设计调整管功耗自调整电路,并根据整管功耗自动控制固态继电器自动接入或断开,并通过设计延时、锁定电路,避免出现输入交流电压不稳时固态继电器的频繁切换,从而达到提高线性电源效率的目的。经过实际测试,采用该技术方案设计的线性电源效率达到了66%,且在不同的整流电路切换、带不同负载时,电源输出没有出现波动,高于市场上一般线性电源40%~50%的效率,且在电网电压±15%波动时,也可以保证较高的效率,实现了特种电源的关键技术突破。In view of the low efficiency of linear power supply,based on the design idea of automatic control regulator power consumption,design of Secondary Multi-group Coils for Transformers,multiple rectifier circuits,multiple solid state relays connected to filter circuit after voting output,through the design of delay and locking circuit,avoid frequent switching of solid state relay when input AC voltage is unstable,in order to improve the efficiency of linear power supply.The linear power supply designed with this technical scheme has been tested in practice,the efficiency reached 66%,when different rectifier circuits are switched,the power output does not fluctuate with different loads.Higher effici ency than 40%-50% of the general linear power supply in the market.And when the voltage of the power grid is fluctuating(+15%),it can also ensure high efficiency.

关 键 词：功耗自调整电路 高效率 交流固态继电器 特种电源 滤波电路 

分 类 号：TN86[电子电信—信息与通信工程]