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采用多台开关电源并联运行实现大功率电源系统是目前电源技术的发展方向之一。均流技术是对系统中各并联电源的输出电流加以控制,尽可能均分系统输出总电流,从而确保多台电源可靠并联运行的一种特殊措施。文章就开关电源并联运行常见的均流技术作简要讨论。并着重介绍Unitrode集成电路公司的UC3907系列负载均流集成控制器及其应用.
The use of multiple switching power supplies in parallel operation to achieve high-power power supply system is one of the development direction of power technology. Current sharing technology is to control the output current of each parallel power system in the system, and divide the total current output of the system as much as possible, so as to ensure reliable operation of multiple power sources in parallel. The article briefly discusses the common current sharing technique of switching power supply in parallel. And focuses on Unitrode integrated circuit company UC3907 series load sharing integrated controller and its application.