数字控制DC-DC变换器的自适应软启动特性

F. Kurokawa, S. Sagara, J. Takano
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引用次数: 0

摘要

介绍了数字控制dc-dc变换器的自适应软启动特性。对于软启动操作,检测负载电阻是很重要的。在传统的模拟方法中,软启动电路的固定大参数必须由条件设定。在本文提出的数字控制中,可以根据输出电压和输出电流计算负载电阻,并通过在电压模式下动态检测负载来确定软启动电路的最佳时间常数。因此,不需要为时间常数设置较大的值。在电流模式控制中,最优上限可由负载电阻决定。结果表明,与模拟控制相比,数字控制方法具有更好的软启动特性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Adaptive soft-start characteristics of digital control DC-DC converter
This paper presents adaptive soft-start characteristics of digital control dc-dc converter. For the soft-start operation, it is important to detect the load resistor. In conventional analog method, the fixed large parameter of the soft-start circuit must be set by the condition. In the proposed digital control, the load resistor can be calculated with the output voltage and output current, and the optimal time constant of the soft-start circuit can be decided by detecting load dynamically in voltage mode. Therefore, it doesn't need to set large value for the time constant. In the current mode control, the optimal upper limit can be decided by load resistor. It is confirmed that the digital control methods have superior soft-start characteristics compared to the analog one.
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