科研之友
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摘要
In this paper, a one-comparator counter-based sampling strategy, together with the proposed primary-side post regulator and the proposed pulse width modulation (PWM) type, is applied to a forward converter with a single isolation stage and multiple outputs having synchronous rectification (SR). With only the required comparators and without any analog-to-digital converter (ADC), the information on feedback output voltage is entirely obtained according to the counter. To upgrade the load transient response, the proposed nonlinear control technique is applied. Therefore, the proposed control topology can improve the cross regulation and load transient response of the SR forward converter. In this paper, the proposed sampling and control schemes are described and some experimental results are provided to verify its feasibility.
- 出版日期2011-6
- 单位中国科学院电工研究所
