Load-limiting network for a power transistor

摘要

The power dissipation within the transistor (1) can be greatly reduced by simple means by using a capacitor (7) which acts in a voltage-delaying manner on a transistor (1) during the turn-off and by using a coil (5) which acts in a current-delaying manner on the transistor (1) during the turn-on. The released energy which is contained in the coil (5) during the turn-off can also be conducted via a load-limiting diode (6) back to an input driver stage (2) where it additionally acts in a power-saving manner when the transistor (1) is turned on. <IMAGE>