Electronic Fuse Circuit Diagram. The current flowing through the thyristor t1 will sink below the holding level when the current is rerouted through the transistor t2 2n3055. T2 and rs are built into the electronic fuse circuit for this purpose.
If the voltage drop at rs exceeds above base emitter diode trigger voltage of the t2 the. An electronic fuse is a safety device that is designed around a conductive strip it is intended to break or melt in the event of any excessive current flowing through the device. Find the electronic fuse circuit construction and working details here.
The current flowing through the thyristor t1 will sink below the holding level when the current is rerouted through the transistor t2 2n3055.
T2 and rs are built into the electronic fuse circuit for this purpose. It is good for your new power supply design or you can just add it to your old power supply unit. Most power supply protection circuits use a low value high wattage resistor connected in series with the load for current sensing. The complete circuit diagram for an electronic fuse circuit is shown below.
