Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Need automatic light dimmer circuit

Status
Not open for further replies.
A

ArdyNT

Full Member level 2
Joined
Nov 6, 2012
Messages
126
Helped
7
Reputation
14
Reaction score
7
Trophy points
1,298
Activity points
2,304
Hi everyone,

I have built a circuit as shown in the picture below. Honestly I'm new here and I don't have much experiences in this one. I want to make an automatic AC lamp dimmer using microcontroller which is completed also with LDR. The problem is that I don't know how the dimmer circuit is and how the connection of my microcontroller with the dimmer circuit. Con you help me or give me the circuit that I needed? or any links that may help me? Help me pls.

Thank you.



Dimmer.png
 

Thank you.

Well, if I use that circuit, do I still need a zero crossing detection circuit?
 

Better use always optotriacs with zero crossing detection, its not some difference in price, price is almost the same. With detecting zero crossing you will get better usage efficiency of sine wave. Like additional zerro crossing ensures switching in moment of voltage zero, rather than applying the peak voltage across bulb filament.

**broken link removed**
 
Last edited:

Well if I may know, by looking at that concept, then what method I should use, PWM ? Phase fired control ? or ...
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top