5watt led driver circuit

359

05:25:41

Voltage source is AC 240v supply.
Capacitor are ceramic plated capacitor which are used in cfl circuits. Becoz these are more responsive. Led use is 5w cool bright chip which consume 900ma at 9-12volt supply .. At PWM form supply led gets less hot and run for a long time without noticable flashes...

published 11 years ago

rich11292000

11 years ago

From what source(in this world) is this 240 volts peak derived from as a main in real life? If you hook this up to a 240 volts rms main you chip will put 1.5 amps on this led. That is because 240 volts rms is 339 volts peak.

ykgarg007

11 years ago

Its rms value ... In general AC written in RMS ..

rich11292000

11 years ago

But yours is 170 rms...240 peak. Not 240 rms/339 peak... So in real life on a 240 volt circuit your led does 1.5 amps not .9

ykgarg007

11 years ago

If led have capablity to hold 1A than why should it use 1.5A .. Its led not peltier which is current hungry..

rich11292000

11 years ago

The AC source needs to be set to 339 volts peak to get a rms of 240 volts. When you connect your circuit, designed for 240 volts peak and 170 volts rms to a main of 339 volts peak and 240 volts rms, your circuit will put out 1.5 amps not 0.9 amps. This is because your circuit is designed for 170 volts rms and you expect 0.9 amp. When in reality your circuit connected to a source of 240 volts rms puts out 1.5 amps.

rich11292000

11 years ago

Change the source to 339 volts, this is the peak setting for AC not the rms setting.

rich11292000

11 years ago

At 339 volts you will see what happens when you plug this into 240 volt rms circuit. I dont know why i made it so hard to see what im talking about.

ykgarg007

11 years ago

Stilll nt get u ...

ykgarg007

11 years ago

After exam i will make this .

rich11292000

11 years ago

X = The peak voltage of your sources main. (339 volts peak).

rich11292000

11 years ago

Y = The rms voltage of your sources main. (240 volts rms).

rich11292000

11 years ago

Z = The voltage you select on Every Circuit.(339 volts peak).

rich11292000

11 years ago

X = Z

troook

10 years ago

Nice

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.