摘要
开关电源并联系统中往往存在两个并联电源性能参数不同甚至差异较大的情况,因此不能采用传统的并联均流方案来平均分摊电流,这就需要按各个电源模块的输出能力分担输出功率。基于这种灵活性的需要,本设计在采用主从设置法设计并联均流开关电源的基础上新增加了单片机控制模块,实现了分流比可任意调节、各模块电流可实时监控的半智能化并联开关电源系统。实测结果表明,该并联开关电源系统分流比设置误差小于0.5%,具有总过流和单路过流保护功能。
In the switching power supply, there are two parallel systems often parallel power performance parameters of different and even a huge difference, so it is not the traditional program in parallel to average current-curent sharing. This requires sharing output power according to the ability of each power module. Based on this after the sexual needs, the design method in the mas- ter-slave settings are designed parallel current switching power supply based on the new single-chip control module added to achieve a split ratio can be adjusted, the current of each module can be semi-intelligent real-time monitoring of parallel switching power supply system. Experimental results show that the parallel switching power supply system can set the split ratio error less than 0.5%, with a total over-current and single over-current protection.
出处
《电子技术应用》
北大核心
2012年第5期62-64,共3页
Application of Electronic Technique
关键词
单片机
并联分流
开关电源
主从设置法
single chip processor
parallel shunt switching
power supply
master-slave setting method
