| 摘要 |
Disclosed is a method for determining the leakage inductance of the transformer of an LLC resonant converter (19; 49; 69; 79) for a lighting means (3; 5), wherein the LLC resonant converter (19; 49; 69; 79) has a primary-side circuit (19; 49; 69; 79) and a secondary-side circuit (30) that is galvanically separated therefrom, involving: activating a first switch (21) of a half-bridge circuit to which an LLC resonant circuit (25-27) of the primary-side circuit (19; 49; 69; 79) is connected; detecting a voltage (V_sns; 43-46; 77, 78; 87, 88) in the primary-side circuit (19; 49; 69; 79); and processing the voltage (V_sns; 43-46; 77, 78; 87, 88) detected in the primary-side circuit (19; 49; 69; 79), preferably detecting the increase in the detected voltage over a determined time in order to obtain information about the leakage inductance. |
