Advanced Burst Mode Control to Reduce the Standby Power of Flyback Converter

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DOI: 10.4236/eng.2013.51B025    8,744 Downloads   11,422 Views  Citations

ABSTRACT

This paper we proposed advanced burst mode control technique to reduce the standby power consumption of the switch mode power supply (SMPS). To reduce the standby power consumption, most of the converter use burst mode or skip mode control technique. However Conventional standby mode control techniques have some problems such as audible noise and poor regulation. In proposed techniques, basically, the burst mode control technique is employed to reduce the fundamental switching frequency while limiting the peak drain current. But, in proposed technique, to improve the regulation characteristic, burst period of the proposed technique is shorter than that of the conventional burst mode technique. And also, to reduce the switching loss increase due to the short burst period, burst switching signal of the proposed technique is partially skipped. By using proposed advanced burst mode control technique, calculated standby power is 0.695W while standby power of the conventional burst mode control is 1.014W.

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M. Kim, H. Kim, J. Jang and K. Kim, "Advanced Burst Mode Control to Reduce the Standby Power of Flyback Converter," Engineering, Vol. 5 No. 1B, 2013, pp. 137-141. doi: 10.4236/eng.2013.51B025.
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