Dynamic hysteresis band control of the buck converter with fast transient response
Dynamic hysteresis band control of the buck converter with fast transient response
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DOI：
10.1109/tcsii.2005.850411
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发表时间：
2005-07-01
影响因子：
4.4
通讯作者：
Chung, HSH
中科院分区：
文献类型：
--
作者：
Leung, KKS;Chung, HSH
提出了一种动态滞环控制的降压转换器，以实现高的摆率响应的干扰。滞后带是从输出电容器电流得出的，该电流预测了假设的开关动作后的输出电压幅值。制定了四个切换准则来指示主开关的状态。在大信号扰动后，输出电压可以在两个开关动作中恢复到稳态。50 W降压变换器的实验结果验证了该技术。
A dynamic hysteresis control of the buck converter for achieving high slew-rate response to disturbances is proposed. The hysteresis band is derived from the output capacitor current that predicts the output voltage magnitude after a hypothesized switching action. Four switching criteria are formulated to dictate the state of the main switch. The output voltage can revert to the steady state in two switching actions after a large-signal disturbance. The technique is verified with the experimental results of a 50 W buck converter.