Design and Applications to Improve Switching Speed of Power Electronic Switch Devices

摘要

The present invention discloses a design and application for improving the switching speed of a power electronic switch device, wherein the switch chip adds an auxiliary pseudo saturation voltage function circuit, and a preset pseudo saturation voltage unequal when the switch chip is saturated conducting. state, and achieve a reduction in the base region tailing time constant and a reduction in the total amount of tailing power consumption in the pause period, thereby achieving an improvement in the switching speed limit. The method of the present invention significantly improves the switching speed of the switch unit and significantly increases the reliability of use of the switch component. Accordingly, the deepening of the design was further improved. From small power saving lights, electric fans, microwave ovens, air conditioners, and switch power sources to instant heating type electric heaters, large high-speed rail-type electric power starters and laser guns, electromagnetic cannons and even aerospace power, these research and development All of which require large-scale energy conversion, and the wide-ranging intervention applications of switch devices, which are at the heart of the power electronics industry, are indispensable.