slide 1: AC Led Circuit Diagram
slide 2: www.kitszone.com
AC Led Circuit Diagram
slide 3: www.kitszone.com
AC Led Circuit Diagram
The circuit given here uses a super-bright white Light
Emitting Diode works on 230V AC with minimal power
consumption. It can be easily assembled on a general
purpose PCB. It can be used as garden lights indoor
lights panel lights etc. Good quality Super-bright LEDs
available in the market costs about `7 to `10.
slide 4: www.kitszone.com
AC Led Circuit Diagram
These LEDs emit a 1000-12000 mCd bright white light
like welding arc and works on 3 volts. The forward
current of each LED may vary from 20mA to 120mA.
Their maximum voltage is 3.6 volts. Anti-static
precautions should be taken while handling these LEDs.
In this circuit I have used 40 numbers of 8mm straw hat
LED with a forward current of 120mA.
slide 5: www.kitszone.com
AC Led Circuit Diagram
The LEDs in water-clear plastic package emit spotlight
while diffused type LEDs have a wide-angle radiation
pattern. This circuit employs capacitive reactance for
limiting the current flow through the LEDs on application
of mains voltage to the circuit. If we use only a series
resistor for limiting the current with mains operation the
limiting resistor itself will dissipate around 2 to 3 watts of
power whereas no power is dissipated on using a
capacitor.
slide 6: www.kitszone.com
AC Led Circuit Diagram
The 2W series resistor at the input avoids heavy ‘inrush’
current during transients. MOV at the input prevents
sudden surges or spikes protecting the circuit. The 390-
kilo-ohm ½-watt resistor acts as a bleeder to provide
discharge path for capacitor C1 when mains supply is
disconnected.
slide 7: www.kitszone.com
AC Led Circuit Diagram
Filter capacitor C2 across the output provides flicker free
light. The circuit can be enclosed in a LED panel case as
shown below and can be connected directly to 230VAC
through a wire. A series combination of 40 LEDs gives a
luminance lux equivalent of a 40W bulb.
For component details and calculation please click here
How to calculate the value of I the current flowing
through the LED Click here
https://kitszone.com/electronicsblog/2017/05/03/ac-led-
circuit-diagram-led-lighting-circuits-220v-ac230v-ac/