Electronics Optics & Control, Volume. 20, Issue 1, 69(2013)
High-Frequency Power Supply Process Control Based on SSDA Waveform Matching
This paper proposes a method based on improved SSDA waveform matching to forecast the zero-crossing point of primary current and to increase the output power of high-frequency power supply by controlling the opening and shut-off of high frequency source control circuit. First considering the noise in waveform sampling process a waveform database was established through the sampling low-pass filtering and arithmetic median filtering of primary current under different conditions.Then by using the improved SSDA waveform matching and according to the waveform in the database the zero-crossing of the target waveform was predicted to control the power switch.The experimental result showed that the method proposed here is feasible with high matching speed and matching precision.
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CHEN Shufeng, JIANG Bin, MAO Zehui, CHEN Xiang, YI Hui. High-Frequency Power Supply Process Control Based on SSDA Waveform Matching[J]. Electronics Optics & Control, 2013, 20(1): 69
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Received: Oct. 21, 2011
Accepted: --
Published Online: Jan. 24, 2013
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