| 摘要 |
The invention relates to a switched-mode power supply unit comprising at least two LLC resonant converters (1, 2) which are connected in parallel and each of which includes a test circuit (22, 23, 28, 29, 30, 31) generating a test signal that is proportionate to the transmitted current of the associated LLC resonant converter (1, 2); each test signal is fed to a load controller (25) which modifies at least one switching frequency of an LLC resonant converter (1, 2) in such a way that the test signals converge. This allows the current or load to be accurately split when a plurality of LLC resonant converters (1, 2) is connected in parallel. |
