基于电容充放电特性的滞环控制策略

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Abstract A hysteretic PWM control method based on the capacitor charging and discharging is proposed in this paper. The proposed control method based on the charging and discharging of capacitance regulates the output voltage of switching converters by the indirect input voltage feed-forward control and output voltage feedback control. The control method is easy to be realized without error amplifier and its corresponding compensation network. The principle and control scheme are analyzed with a Buck converter as an example. Finally, simulation and experimental results verified that the proposed control strategy has much faster transient response and better steady-state results than conventional voltage-mode pulse width modulation (PWM) technique.

Key words： Switching converter hysteretic control feed-forward control transient response

Received: 18 March 2013 Published: 25 March 2014

PACS:

TM315

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	Zhao Jinbin
	Liu Yongxiao
	Qu Keqing

Cite this article:

Zhao Jinbin,Liu Yongxiao,Qu Keqing. Hysteretic PWM Control Method Based on Capacitor Charging and Discharging[J]. Transactions of China Electrotechnical Society, 2013, 28(8): 91-96.

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http://dgjsxb.ces-transaction.com/EN/ OR http://dgjsxb.ces-transaction.com/EN/Y2013/V28/I8/91

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