With the progress of science and technology, people's requirements for the performance of power electronic devices are also improving. On the one hand, the development direction is simple operation, superior performance, portability and low cost. On the other hand, people are paying more and more attention to the sustainable development. Whether the material is energy-saving and environmental protection has become an important indicator, so a new load device is needed. In view of the shortcomings of the traditional verification method, if the power electronic load composed of power electronic components is used, it can not only overcome the shortcomings of the above traditional method, but also has many advantages mentioned above. Its test operation is simple, and the power used for testing is also saved.<br>
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