CIRCUIT FOR DISCHARGING AN ELECTRICAL LOAD AND POWER OUTPUT STAGE COMPRISING ONE SUCH DISCHARGE CIRCUIT FOR CONTROLLING PLASMA DISPLAY CELLS

摘要

The invention relates to a discharge circuit consisting of an output circuit (20, T22) comprising one output (4) which is connected to an electrical load (CLoad) in order to absorb a discharge current supplied by the load (CLoad) when a logic signal (IN) orders the load (CLoad) to be discharged. According to the invention, the discharge circuit also comprises a control circuit (30, 40) for supplying the output circuit with a suitable control signal (INN) such that the slope of the output potential (OUT) (4) of the output circuit (20, T22) decreases progressively when the logic signal (IN) orders the load (CLoad) to be discharged. Moreover, by varying the slope of the output potential progressively, and not suddenly, the electromagnetic radiation generated by said variations can be limited. The invention can be used to produce power output stages for controlling plasma display cells.