1 Description

The LLC topology allows the transformer to have significant leakage inductance, but much smaller primary-to-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 LLC board, as needed for evaluation. For details how to use this EVM, please refer to Section 5.