Design project of a high-voltage adjustable high-frequency switching power supply
WANG Hongqi
WAN Gege
Abstract：Because of the big volume,the heavy weight,the low efficiency and the low power factor of the linear power supply in traditional high-voltage adjustable power supply field,one new designed project of high-voltage adjustable high-frequency switching power supply is proposed.The project is realized by half-bridge topology,which can control output voltage and can limit biggest current.Aimed at the converter,the high-frequency transformer of main power supply circuit is designed,and an advance half-bridge topology is proposed.In addition,a control circuit is layout using chip SG3525 and LM324,and one control mode of multi-step split-ranging is proposed.Feasibility study of the project was implemented by PSPICE software.One 0 ～ 1 000 V experimental prototype was realized and the feasibility of the designed project was verified by the prototype.
Keywords：advance half-bridge topologyhigh-frequency transformer designcompensation network designmulti-step split-ranging control
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 107-112 )