摘要
软开关技术是开关电源中的一个重要研究领域。根据磁性元件的电压极性在不同开关状态下也不同的特点,提出了一种新型的ZVS关断电路。这种关断电路所附加的元件很少,但可以实现优良的软关断效果。以CCM Buck电路为例,对该ZVS关断电路进行了详细的理论分析。最后的实验结果证实了理论分析,表明这种电路的正确性和可行性。
The soft-switching technology is a important research field of switch-mode power supply. A new type ZVS turn-off snubber is presented, which is based on the different voltage polarity of the magnetic component in different states of the switch. The proposed ZVS turn-off snubber needs a few added components, but it can reach a good soft turn-off effect. The principle of the snubber applied to CCM Buck circuit is analyzed. The results of the experiment prove the validity of the snubber.
出处
《电源技术应用》
2005年第2期25-27,31,共4页
Power Supply Technologles and Applications
