直流变压器的研究与实现

Research and Verification on DC Transformer

研究了DC-DC变换器的一种不调压形式——直流变压器的工作特性。直流变压器有输入输出电压成比例的特点;由于直流变压器的系统中储能元件小,因此系统频带宽;此外直流变压器还具有易于实现ZVS开关、功率密度高等优点。在理论分析的基础上,采用推挽正激电路为基本单元进行了实验验证。

The DC transformer is one type of DC-DC converter that the output voltage isn't regulated with the load and the input voltage. The input and output voltage is proportional to input voltage in the DC transformer. The storage elements in the DC transformer are very small, so the frequency response band of the DC transformer is very wide. All the switches are ZVS in the DC transformer, so the efficiency of the DC transformer and the power density are all high. The prototype of push-pull forward DC transformer is proposed in the paper.