| 摘要 |
There is described a driving apparatus for an electromagnetic load (10), said apparatus comprises at least one pair of first (M4) and second (M5) transistors both arranged so as to form a current path with the electromagnetic load for discharging the current (Im) produced by the electromagnetic load. The first transistor (M4) comprises an inherent diode (D4) between the non-drivable terminals and the apparatus comprises means (120) to control the switching on and off of said at least one pair of first and second transistors, means (100) adapted to allow the second transistor (M5) to be diode connected, with said first (M4) switched off and said second transistor (M5) deactivated, so that the current (Im) produced by said electromagnetic load, crossing said inherent diode, creates an overvoltage between the terminals of the second diode-configured transistor such to exceed the conduction threshold voltage (Vt) thereof. |
