An Optimal Designed Rod Snubber for DC-DC Converters

In this paper. We propose that a genetic algorithm and the Taguchi method he employed in the optimal design of a DC-DC converter with an RCD snubber. Such a design reduces the spike voltage (V(subscript dsp)) of the power switch and consequently decrease the manufacturing costs. We first investigated the circuit parameters affecting the drain-to-source voltage (V(subscript ds)) and then determined the ideal circuit parameters using the genetic algorithm, and developed an optimal design of a prototype circuit with the Taguchi method. A comparison of the spike voltage showed the advantages of the optimal circuit design over a ion-optimal design. The measured spike voltage for the optimal circuit design shed a 40.5% reduction to 138 V. Therefore, using the genetic algorithm and the Taguchi method in the optimal design of a converter with an RCD snubber is a more economical, practical, and efficient circuit design, which can be easily applied to other electronic circuits to optimize their design for various quality characteristics.

並列關鍵字

Taguchi method ； genetic algorithm ； orthogonal array ； optimal design ； RCD subber ； DC-DC converter

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