night light

517

06:12:37

Circuit of a night light I have. I believe it has a triac... I tried to emulate it with the pnp and npn. The light sensor is replaced with a variable resistor. I think I got the circuit correct, it turns off when there is low resistance on the light sensor, and turns on when there is high resistance. I'm just not sure if it should be blinking. Any insight would be appreciated.

published 7 years ago

wyoelk

7 years ago

Try this circuit. http://everycircuit.com/circuit/5411286410854400

shikima

7 years ago

Thanks, but that's using a DC power source. This one runs off AC power. Unless the real one just blinks so fast you don't notice it?

wyoelk

7 years ago

You can run mine of a 9 volt battery, which makes it portable and safer, or a 9 volt wall adapter. And no, mine doesn't blink that you could see.

wyoelk

7 years ago

What country are you in if I may ask?

shikima

7 years ago

USA

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.