Irf840 Mosfet Driver Circuit Diagram. The bootstrap circuit is explicitly shown in the circuit diagram below. I want to get pure 220v vrms and 50hz sinusoidal signal from an h bridge after it is filtered.
Irf840 features drain current id 8 0a tc 25 c drain source voltage. Vdss 500v min static drain source on resistance 0 85fi max descrition designed for high voltage high speed switching power applic ations such as switching regulators converters solenoid and relay drivers. I want to get pure 220v vrms and 50hz sinusoidal signal from an h bridge after it is filtered.
One considerable disadvantage of the irf840 mosfet is its high on resistance rds value which is about 0 85 ohms.
The bootstrap circuit built using the capacitor c1 and diode d1 is used to drive this mosfet. Irf840 features drain current id 8 0a tc 25 c drain source voltage. Hence this mosfet cannot be used in applications where high switching efficiency is required. The bootstrap circuit is explicitly shown in the circuit diagram below.
