Topology | LLC Resonant Converter |
Input voltage | 30 V |
Output 1 | 12 V / 1 A |
Output 2 | 24 V / 1 A |
Output 3 | 15 V / 1 A |
Output 4 | 18 V / 1 A |
The LLC topology allows the transformer to have significant leakage inductance, but much smaller primaryto-secondary capacitance, which significantly reduces common-mode current injection through the bias transformer. The LLC converter based on UCC25800 offers a high level of integration, low cost and high efficiency in a compact form factor. The EVM consists of two portions, namely, the pre-regulator board (left half) and the LLC board (right half). The two portions of the board can be used together or used only with the LLCboard, as needed for evaluation.