Resonant power converter comprising: a transformer having a primary sided winding (N1) and at least one secondary sided winding (N2, N3), a primary sided controller ; a synchronous rectification controller ; at least one primary sided switch (T11, T12) which is controlled by said primary sided controller and is connected to said primary sided winding (N1), a secondary sided synchronous rectifier which is controlled by said synchronous rectification controller and is connected to said at least one secondary sided winding (N2, N3) for outputting a rectified output voltage (Vout) at an output terminal , characterised in : a discharge circuit which is connected to said output terminal and is operable to lower said output voltage during startup of the resonant power converter, wherein the resonant power converter further comprises an enable signal input terminal for inputting a first enable signal (Enable), and a delay circuit which is connected between said enable signal input terminal and the primary sided controller for providing a second enable signal (Enable_LLC), further comprising a pullup circuit which is connected to said enable signal input terminal for activating said discharge circuit before the second enable signal (Enable_LLC) is provided to the primary sided controller , and a feedback switch (T41) which is controlled by the second enable signal (Enable_LLC) for de-activating said discharge circuit and said pullup circuit . a transformer having a primary sided winding (N1) and at least one secondary sided winding (N2, N3), a primary sided controller ; a synchronous rectification controller ; at least one primary sided switch (T11, T12) which is controlled by said primary sided controller and is connected to said primary sided winding (N1), a secondary sided synchronous rectifier which is controlled by said synchronous rectification controller and is connected to said at least one secondary sided winding (N2, N3) for outputting a rectified output voltage (Vout) at an output terminal , characterised in : a discharge circuit which is connected to said output terminal and is operable to lower said output voltage during startup of the resonant power converter, wherein the resonant power converter further comprises an enable signal input terminal for inputting a first enable signal (Enable), and a delay circuit which is connected between said enable signal input terminal and the primary sided controller for providing a second enable signal (Enable_LLC), further comprising a pullup circuit which is connected to said enable signal input terminal for activating said discharge circuit before the second enable signal (Enable_LLC) is provided to the primary sided controller , and a feedback switch (T41) which is controlled by the second enable signal (Enable_LLC) for de-activating said discharge circuit and said pullup circuit . a discharge circuit which is connected to said output terminal and is operable to lower said output voltage during startup of the resonant power converter, wherein the resonant power converter further comprises an enable signal input terminal for inputting a first enable signal (Enable), and a delay circuit which is connected between said enable signal input terminal and the primary sided controller for providing a second enable signal (Enable_LLC), further comprising a pullup circuit which is connected to said enable signal input terminal for activating said discharge circuit before the second enable signal (Enable_LLC) is provided to the primary sided controller , and a feedback switch (T41) which is controlled by the second enable signal (Enable_LLC) for de-activating said discharge circuit and said pullup circuit . <EOS>