scholarly journals Research on Electromagnetic Compatibility of High Frequency Switching Power Supply Based on Harmonic Balance Finite Element Method

2021 ◽  
Vol 2132 (1) ◽  
pp. 012041
Author(s):  
Chunning Bu ◽  
Zhihong Zhang ◽  
Tiantian Hou ◽  
Xin Bai ◽  
Hong He
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Power Supply ◽  
High Frequency ◽  
Harmonic Balance ◽  
Electromagnetic Compatibility ◽  
Rapid Development ◽  
Switching Power Supply ◽  
Switching Power ◽  
Element Method

Abstract With the rapid development of electronic technology, high frequency switching power supply has been widely used in various electrical equipment, and its electromagnetic interference has attracted more and more attention. In this paper, the harmonic balance finite element method is used to solve the electromagnetic compatibility of high frequency switching power supply. In this method, the coefficients of sine wave are applied to represent the waveform, and the solution is generated by linear synthesis. We propose to combine it with the finite element method to solve the steady-state response of electromagnetic field in frequency domain. It is proved the method we proposed is superior to the traditional time domain method.

Optimization Design of High Frequency Transformer for Multiple Outputs Switching Power Supply

2014 ◽  
Vol 1044-1045 ◽  
pp. 370-374
Author(s):  
Yan Liu ◽  
Ming Li Lu ◽  
Chao Qu
Keyword(s):  
Power Supply ◽  
High Frequency ◽  
Optimization Design ◽  
Electromagnetic Compatibility ◽  
Ripple Effect ◽  
Switching Power Supply ◽  
Switching Power ◽  
High Frequency Transformer ◽  
Switch Power Supply ◽  
Switch Power

With TOP243Y as control chip of multiplexed output flyback switch power supply, has the advantages of small volume, high integration and strong function, and the high-frequency transformer design and calculation large effect on the overall performance of multiple output the switch power supply. Based on the design computation to optimize the parameters of the transformer can be achieved to improve voltage accuracy, reducing the ripple effect. Seen from the experimental data and waveform of the switching power supply regulator, electromagnetic compatibility are good, meet the design requirements.

The Design of 5V/100W High Frequency Switching Power Supply

2013 ◽  
Vol 834-836 ◽  
pp. 1221-1224
Author(s):  
Hong Zhuan Cai ◽  
Li Bai
Keyword(s):  
Power Supply ◽  
High Frequency ◽  
High Efficiency ◽  
Design Method ◽  
Switching Power Supply ◽  
Widespread Application ◽  
Forward Converter ◽  
Switching Power ◽  
Dc Power ◽  
Important Field

Switching power supply is an important field of application of power electronic technology, the high frequency switching DC power supply with high efficiency, small size, light weight and other advantages obtain the widespread application. The application of synchronous rectifier technology, photoelectric coupling isolation technology and the active clamp forward converter design high frequency switching power supply with 16~40V DC input and 5V/100W DC output . its operational principle is analyzed, and using LM5026 control chip describes design method of switching power supply.

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