Title: Synchronous rectification control method of AC/DC converters based on the response surface algorithm

Authors: Junjun Liu

Addresses: School of Mechanical Engineering, Changshu Institute of Technology, Changshu, 215500, China; Jiangsu Key Laboratory for Elevator Intelligent Safety, Changshu, 215500, China

Abstract: In order to improve the stability and anti-interference ability of synchronous rectification control of AC/DC converter, a synchronous rectification control method of AC/DC converter based on response surface algorithm is proposed. A high speed and low power comparator is designed to compare input and output signals. The AC/DC converter optimisation model is constructed by response surface algorithm. Logic control is implemented through synchronous rectification logic and synchronous rectification control. The control part of power supply and drive AC/DC converter is designed to realise the synchronous rectification control of AC/DC converter. The performance of synchronous rectifier control of AC/DC converter under the application of the proposed method was tested. The test results show that the output waveform of the converter trigger pulse is very stable and regular. It has good phase shifting characteristic; the method has strong anti-interference ability and achieves the original design goal.

Keywords: response surface algorithm; hysteresis comparator; synchronous rectifier MOS transistor; synchronous rectification control.

DOI: 10.1504/IJPEC.2022.130953

International Journal of Power and Energy Conversion, 2022 Vol.13 No.3/4, pp.263 - 275

Received: 23 Aug 2022
Accepted: 22 Dec 2022
Published online: 14 May 2023 *

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