POWER REGULATION OF GAS DISCHARGE LAMPS IN HALF BRIDGE AND FULL BRIDGE CIRCUITS

摘要

The invention relates to a circuit for controlling the power of a gas discharge lamp, comprising: a half bridge circuit or full bridge circuit, having two switches and two capacitances, wherein the gas discharge lamp is connected in the bridge branch, wherein a control unit activates a bridge diagonal, in that it actively cycles a switch of the bridge diagonal, wherein the control unit has fed back to it a measured actual value representing the mean of the lamp current and compared to a reference value.