brief introduction: Power diode is the most basic component of power electronic circuit. Its unidirectional conductivity can be used for rectifier, clamp and continuation of circuit.Reasonable use of power diode performance is an important part of power electronic circuit.The diodes in this field mainly include: 1, ordinary power diodes, 2, fast power diodes, 3, other power diodes.Power rectifier diodes than ordinary diode junction area is larger, can pass a larger current (up to thousands of amps), but the operati