Dhika Abiyoso Rahardianto, Waru Djuriatno, Rini Nur Hasanah, Taufik
DC-DC converters are circuits used to change a direct-current voltage from one level to another. They are utilized in various types of applications ranging from everyday consumer electronics to industrial uses. One of the commonly used DC-DC converter topologies is called the full-bridge converter. However, despite their popularity there are still some challenges that need to be overcome during its implementation. One issue relates to its inherent voltage spike that may damage components and oscillations that may interfere with system performance. In this paper, an RCD snubber circuit is explored to overcome the problems. The RCD design implements resistors, capacitors and diodes which are connected in parallel to each MOSFET in the converter. Hardware test results demonstrate that the snubber circuit successfully and effectively reduces the voltage spike to an average of 46.93 % and decreases the oscillation time during switching transition to an average of 61.25%. However, the snubber introduces loss on its resistor by around 2.163 % of the total loss. © 2023 IEEE.
Universitas Brawijaya, Department of Electrical Engineering, Malang, Indonesia; Cal Poly State University, Electrical Engineering Department, San Luis Obispo, United States
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