| 摘要 |
<p>The present document relates to power converters. In particular, the present document relates to the compensation of voltage variations within power converters. A driver circuit (300) for a solid state light source (309) is described. The driver circuit (300) comprises a switched-mode power converter (200) comprising a switch (202); wherein the switched-mode power converter (200) is configured to convert an input voltage (230) at an input of the switched-mode power converter (200) into an output voltage (231) at an output of the switched-mode power converter (200). Furthermore, the driver circuit (300) comprises current sensing means (203) configured to determine a sensed current signal (233) indicative of a current through the switch (202); and voltage sensing means (208, 9) configured to determine a sensed voltage signal (234) indicative of the input voltage (230). In addition, the driver circuit (300) comprises a control unit (205, 206, 306) configured to determine a gate control signal (232) for putting the switch (202) into an off-state, based on the sensed current signal (233) and based on the sensed voltage signal (234).</p> |
