Pages: [1]   Go Down
Author Topic: Home light controller (LED strip dimmer with opto switch, thermometer and LCD)  (Read 697 times)
0 Members and 1 Guest are viewing this topic.
Slovenia, EU
Offline Offline
Full Member
***
Karma: 0
Posts: 153
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

I am building some kind of a home light controller. I am planning to use this circuit to control LED strip lights. I will use VISHAY TEPT5700 sensor as light detector for automatic turning LEDs on and off between day and night, PWM for dimming LEDs and temperature senzor for temperature reading. Everything will be shown on LCD display. I will also use potentiometer for setting PWM.

My question is, if this circuit scheme looks ok or if there is any obvious mistake in it and if i really need to use schottky diode between 12V and FET for supplying LEDs.

Scheme
https://www.dropbox.com/s/zryfvrnldn0als5/home_controller.pdf
Logged

Offline Offline
Edison Member
*
Karma: 64
Posts: 2488
The last thing you did is where you should start looking.
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

I am have trouble making out the drawing.
Would you resubmit a better copy?
Logged

Offline Offline
Edison Member
*
Karma: 64
Posts: 2465
Now, More Than Ever
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

D2 is unnecessary.  It's only required where the load is inductive (as with a relay coil or a motor.)
Logged

"Hello, I must be going..."
"You gotta fight -- for your right -- to party!"
Don't react - Read.
"Who is like unto the beast? who is able to make war with him?"

Slovenia, EU
Offline Offline
Full Member
***
Karma: 0
Posts: 153
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

I am have trouble making out the drawing.
Would you resubmit a better copy?

Scheme is made directly from Eagle. Try to download pdf file and use zoom. It's the best quality i can get.
Logged

Pages: [1]   Go Up
Jump to: