Abstract
This letter proposes a modified double-dual-boost (DDB) high-conversion-ratio dc-dc converter. The proposed converter is derived from the existing DDB converter by a simple yet effective circuit modification and inherits all the advantages of the existing DDB converter. In addition, the input and output can share a common ground due to the circuit modification, enabling the use of low-side gate drivers for all switching devices. When compared with the existing DDB converter, the proposed converter requires only one more capacitor, and the seemingly two inductors can be integrated into a single inductor. Thus, the overall magnetic volume is the same as the conventional converter. To validate the performance of the proposed converter, a 2-kW prototype was fabricated and tested.
| Original language | English |
|---|---|
| Pages (from-to) | 4952-4956 |
| Number of pages | 5 |
| Journal | IEEE Transactions on Power Electronics |
| Volume | 37 |
| Issue number | 5 |
| DOIs | |
| State | Published - 1 May 2022 |
Keywords
- Common ground
- double-dual-boost (DDB) converter
- high-conversion ratio
- interleaved
- low-side gate driving
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