| Flyback converter based on peak current-control technique is discussed in this article.Firstly, different operation modes of flyback converter are analyzed and compared, technique of RCD clamp in flyback converter is researched. Secondly, the steady principle of Two-Transistor flyback converter and the design guide line for parameters of this kind of converter are analyzed in detail. Then, the small signal model for flyback converter as well as its control scheme is developed and is used to optimize regulator's parameters.RCD clamp flyback converter and Two-Transistor flyback converter are designed and manufactured based on theories discussed above. Experimental results are presented and the results of RCD clamp flyback converter in both CCM mode and DCM mode are compared. Experimental results are identical with theory analysis.
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