High frequency high voltage transformer module

Abstract

The present invention discloses a high frequency high voltage transformer module, comprising: a transformer and a rectifying filter; wherein the transformer comprises: a U-shaped magnetic core, a transformer skeleton, a primary winding and a secondary winding; the transformer skeleton comprises: two hollow inner skeletons and two outer skeletons; the two inner skeletons respectively wrap two vertical portions of the U-shaped magnetic core; the two outer skeletons respectively wrap two inner skeletons; the two inner skeletons are respectively wound with primary windings; the two outer skeletonsare respectively wound with secondary windings; the secondary winding is connected to the rectifying filter. The high-frequency high-voltage transformer module of the transformer module has small volume, small distributed capacitance and low loss.

Description

technical field [0001] The invention relates to the technical field of pulse power sources, in particular to a high-frequency and high-voltage transformer module. Background technique [0002] The high-frequency high-voltage transformer module occupies an important position in the high-frequency high-voltage power supply system. It is a key component of the entire system. The working process is firstly passed through the inverter and then rectified by the step-up transformer. The high-frequency high-voltage transformer module is insulated and isolated. and the role of boost. [0003] As the operating voltage of high-frequency high-voltage transformer modules continues to increase, the step-up ratio of the transformer is required to increase continuously, and the turn ratio of the secondary winding of the transformer is also increasing. The high turn ratio and high voltage make insulation difficult to deal with, leakage inductance and distributed capacitance Such parasitic p...

AI Technical Summary

Problems solved by technology

[0003] As the operating voltage of high-frequency high-voltage transformer modules continues to increase, the step-up ratio of the transformer is required to increase continuously, and the turn ratio of the secondary winding of the transformer is also increasing. The high turn ratio and high voltage make insulation difficult to deal with, leakage inductance and distributed capacitance Such parasitic parameters cause surge voltage and surge current to the front-stage power switch tube, distort the voltage and current waveform, and increase switching loss

At the same time, the increase in working voltage has greatly increased the volume of the silicon stack and capacitor for output rectification and filtering, which in turn has greatly increased the volume of the power supply, affecting the miniaturization and compact structure design of the power supply.

Images