A Lossless Passive Snubber for Soft-Switching of Flyback Converters
- Publisher:
- IEEE
- Publication Type:
- Conference Proceeding
- Citation:
- 2024 IEEE 19th Conference on Industrial Electronics and Applications (ICIEA), 2024, 00, pp. 1-6
- Issue Date:
- 2024-09-18
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| Filename | Description | Size | |||
|---|---|---|---|---|---|
| A Lossless Passive Snubber for Soft-Switching of Flyback Converters.pdf | Accepted version | 779.73 kB |
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To improve power density ftyback converters are required to operate at high switching frequencies resulting in higher power dissipation and lower efficiency This study aims to reduce the switching power losses of semiconductor switches and voltage spikes at the switch turn off A lossless passive snubber consisting of two diodes and an LC circuit is designed to achieve zero voltage and zero current switching during the turn on turn off and suppresses the voltage spikes caused by the magnetic energy stored in the transformer leakage inductance For this the passive snubber utilizes the discontinuous conduction mode in a single switch ftyback converter The effectiveness of the proposed design is demonstrated in a designed example of a 15W 15V 1A step up DC DC converter operating at a switching frequency of 300 kHz
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