h桥降压变换器采用所提出的开关暂态波形修改来降低比次谐波

2012 International Conference on Renewable Energy Research and Applications (ICRERA) Pub Date : 2012-11-01 DOI:10.1109/ICRERA.2012.6477256

T. Mori, H. Funato, S. Ogasawara, F. Okazaki, Y. Hirota

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引用次数: 2

摘要

提出了通过改变开关暂态斜率来降低特定频段高频噪声的新方法。本文提出了一种新的电压反馈型VDS控制器(栅极驱动器)来实现修正开关暂态，以提高稳定性。在采用VDS控制器的降压变换器中，调幅频段的谐波降低效果约为10 dB。然后，测量了采用该方法的降压变换器的输出电压和开关损耗特性。经验证，这些特性与传统变换器相同。并将该方法应用于直流电机驱动的h桥降压变换器。仿真验证了MT-PWM可以在h桥降压变换器中实现，无需进行较大的修改。

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H-bridge step-down converter applied proposed switching transient waveform modification to reduce specific harmonics

Authors has proposed a new method to decrease high-frequency noise at specific frequency band with modification of switching transient slope. In this paper, new voltage feedback type VDS controller (gate driver) has proposed to realize modified switching transient to increase stability. In the step-down converter applied propose VDS controller, harmonics reduction effect is obtained about 10 dB in AM radio band. Then, output voltage and switching loss characteristics was measured on the step-down converter applied proposed method. It is verified that these characteristics are same to conventional converter. In addition, the proposed method was applied to H-bridge step-down converter for DC motor drive application. It is verified that MT-PWM is able to realize in H-bridge step-down converter without any major modification through simulations.

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来源期刊

2012 International Conference on Renewable Energy Research and Applications (ICRERA)

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