并联型高频开关直流电源的系统设计
上传时间:2008-10-17 9:51:05
摘要:随着模块化电源系统的发展,开关电源并联技术的重要性日见重要。这里介绍了一种新型并联型高频开关电源整流模块的系统设计方案。其中,对开关电源的驱动电路、缓冲电路、控制电路及主要磁元件进行优化、设计。控制电路以UC3525为核心,构成电流内环、电压外环的双环控制模式,实现系统稳压和限流。并且通过小信号模型分析,对电压电流环的PI调节器进行设计。
叙词:开关电源 PWM 并联 均流 模块
Abstract:With the development of modular power systems, switching power supply parallel the importance of technology has become increasingly important. But here is a new parallel-type high-frequency switching power supply rectifier module of the system design. One of the driving circuit switching power supply, buffer circuit, the main control circuit and magnetic components to optimize the design. Control circuit to UC3525 as the core, a current inner ring, the outer ring of the double loop voltage control mode, and system regulator and current limit. And through small-signal model analysis, the voltage and current Central PI regulator design.
Keyword:PWM switching power supply module Parallel Flow
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