摘要
提出全桥移相PWM开关电源的DSP实现方案框图,对其主电路和控制电路的硬件电路及参数估算进行了详细设计,并对其数字控制系统的软件设计方法进行了研究,全面介绍了一种全桥移相PWM开关电源的数字化控制方案。经软件仿真和实验验证,通过DSP实现数字控制,输入电压在较宽范围内变化时都能获得满意的控制效果,表明该数字化控制方案是可行的。
The general block diagram is proposed firstly,then the main circuit and control circuit of full-bridge phase-shifted PWM switching power supply are designed,and the software design method of digital control system is intro-duced.Finally the designed system is simulated with the Pspice simulation software.The simulation results show that the control effect is satisfactory when input voltage changes in a wide range and the digital control scheme is feasible.
出处
《电力电子技术》
CSCD
北大核心
2011年第9期108-110,共3页
Power Electronics
关键词
开关电源
数字控制
全桥移相
switching power supply
digital control
full-bridge phase-shifted
