| 摘要 |
The invention relates to a converter for light sources, comprising an LLC resonant circuit, from the secondary side of which light sources, e.g. an LED path, can be energized; the LLC resonant circuit includes a half-bridge circuit with two series-connected switches that are triggered by a control circuit, and further includes a resonant circuit that is energized from a central point between the two switches, as well as a transformer which is supplied with AC voltage from an output of the resonant circuit and on the secondary side of which two separate current paths for the two polarities of the AC voltage are provided; a detection circuit is provided which detects a signal representing currents in the two current paths and/or the ratio between the two currents, and the control circuit adjusts the timing of the two switches of the half-bridge circuit in accordance with the signal detected by the detection circuit. |
