Led Driver Circuit Diagram. You can use 1uf400V capacitor for better. Circuit nodes are shown in the rendered circuit above.
This is a Very Simple AC LED Driver Circuit for driving a 1 watt LED on 110 which may be understood with the following points. In this circuit we will drive an LED directly from 230V AC Mains Supply. Just an IRFZ44N N-Channel Mosfet and a Potentiometer.
As indicated in the diagram 06 ohms will pass about 1 amp maximum current which becomes suitable for driving a 3 watt led safely and if a 5 watt LED needs to be driven safely this resistor must be replaced with a 03 Ohms which will allow a maximum of 2 amps of current.
This Circuit also works with other N-Channel Mosfets as well. SW1 Push to ON switch. Switching ON power to the assembled circuit will instantly illuminate the LED and you can use the unit for any relevant desired application. R1 1K5 R2 22 Ohms C1 001uF.