Short-circuit cut-off circuit for MOSFET switch, has device which places gate voltage of MOSFET switch at zero volts for short time to effect complete switch-off

摘要

The gate of the MOSFET switch (T1) is driven by an integrated circuit (1), and the source and drain are connected to a load (RL) and voltage source (Ub) respectively. The gate of the MOSFET switch is connected via a switch (S1) to a device (12) which places the gate voltage of the MOSFET at 0 V for a short time, to effect a complete switch-off of the MOSFET switch.