Driving circuit for a control terminal of a bipolar transistor in an emitter-switching configuration and corresponding driving method

摘要

The invention relates to a driving circuit for a control terminal (B10) of a bipolar transistor (T10) inserted, in the emitter-switching configuration (10), between a first (Vcc) and a second (GND) voltage references. The driving circuit comprises at least a first resistive element (R1) connected to the control terminal (B10) and a first capacitor (C1) connected to the resistive element (R1) in correspondence with a first circuit node (X1) and to the second voltage reference (GND). <??>Advantageously according to the invention, the driving circuit further comprises a Zener diode (D10) connected between the first circuit node (X1) and a second circuit node (X2) as well as a second capacitor (C2), inserted between the second circuit node (X2) and the second voltage reference (GND). <??>The invention also relates to a method for driving a control terminal (B10) of a bipolar transistor (T10) in the emitter-switching configuration (10). <IMAGE>