摘要
为实现供电电源的低纹波输出,采用纹波控制方法,设计了一种双电池充供欠满自主切换的低纹波直流电源,并对电源进行纹波特性测试。原始信号通过电压采集电路传输给控制主电路,控制主电路依据采集到的电压信号和继电器开关的通断原则来控制充供电选择电路,可供电电池通过线性电压调整电路即可实现一路5 V和两路可调电压输出,实现了从充电到供电的低纹波直流稳压输出。电源纹波测试采用同轴电缆测试装置,测试数据表明:低纹波直流稳压电源运行状况良好,输出电压稳定,与其他直流电源相比,在纹波控制方面具有较大优势。
In order to realize the low?ripple output of the power supply,a low?ripple dual battery DC power supply was de?signed with the ripple control method,which can switch from the low power state to full power state automatically. The ripplecharacteristic test for the power supply was performed. The original signal is transmitted to the main control circuit through thevoltage acquisition circuit,and then the main control circuit is used to control the charging and supplying power selection circuitaccording to the on?off principle of the relay switch and collected voltage signal. The power supply battery can realize +5V volt?age output in one channel and adjustable voltage output in two channels through the linear voltage adjustment circuit. The lowripple DC voltage regulator output from charging state to supplying power state was implemented. A coaxial?cable testing devicewas adopted in power supply ripple test. The test data shows that the low ripple DC regulated power supply has good runningcondition and greater advantage in ripple control in combination with other DC power supply,and its output voltage is stable.
作者
李杰
程为彬
冯笃
满荣娟
LI Jie;CHENG Weibin;FENG Du;MAN Rongjuan(School of Electronic Engineering,Xi’an Shiyou University,Xi’an 710065,China)
出处
《现代电子技术》
北大核心
2016年第14期150-153,共4页
Modern Electronics Technique
基金
国家自然科学基金项目(61174191)
陕西省科学技术研究发展计划项目(2011K06-27)
陕西省教育厅产业化培育项目(2013JC08)
关键词
直流电源
低纹波
双电池
通断原则
DC power supply
low ripple
dual battery
on.off principle
