一种磁反馈抗直通变换器的研究

Research on a Novel Magnetic Feedback With No Direct Short Path Converter

介绍了一种应用新型磁反馈技术的推挽半桥变换器,新型的推挽半桥变换器将开关管承受的电压箝位在输入电压,降低了开关管的电压应力;漏感能量能通过箝位二极管回馈到输入电源,提高了变换器效率;无直连的开关管,其结构消除了直通的隐患。新型的磁隔离技术直接引入输出电压作为反馈量,提高了变换器的可靠性及控制精度,可适用于高可靠性要求的航空航天等领域。

A novel push-pull half-bridge converter with a novel kind of magnetic feedback technology is introduced. The switch stress of the novel converter is clamped at the input voltage which reduces the stress of the switch tube. Efficiency can be improved because the leakage can be recycled to the input source.No direct path exists in the topology so high reliability can be guaranteed.A novel magnetic feedback technology used in the converter.Reliability and control accuracy are improved.The converter is suitable for the aerospace field which need high reliability.