Connect with us

About sound reactive led's with TIP31C

Discussion in 'LEDs and Optoelectronics' started by Janciius, Apr 14, 2012.

Scroll to continue with content
  1. Janciius


    Apr 14, 2012
    Hi my friends,
    I'm new in this forum. I wanted to ask. Yesterday I buyed TIP31C transistor, and connected all wires like in this scheme :,r:2,s:0,i:67&tx=72&ty=58
    So, I wanted to connect my LED strip (12v), which has 24LED's, to tip31C. So, it's working, but LED strip is not bright, like a connect it with 12v charger without any transistors. (That LED's strip bright not belong to high-volume, I tried to put high volume but that does not worked, led strip blinking is not bright).
    So, can someone help me? Maybe I must to use Tip31, not Tip31c?
    P.s I buyed tip31c from
    Sorry for my bad English
  2. jackorocko


    Apr 4, 2010
    Because you will never get the full 12V across the LED strip when wired in the schematic you posted. How much dimmer are the LED's when driven in this manner? Does the LED strip have a built in resistor?
Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day