volatge is written as 12-0-12 and at secondary there are 3 terminals.. What mean by 12-0-12 and why there are 3 terminals ? from which terminals I will get 12 v supply ?
2006-12-08 04:30:32 · 4 answers · asked by Electrosam 3 in Science & Mathematics ➔ Engineering
I THINK
THE TRANSFORMER YOU HAVE BOUGHT IS PROBABLY A CENTRE TAPPED TRANSFORMER.
WITH TERMINAL 1 AT +12V
TERMINAL 2 AT 0V
TERMINAL 3 AT -12V.
SO, IF YOU CONNECT THE 1ST AND 3RD TERMINAL YOU GET 24V
IF YOU CONNECT WITH 2ND TERMINAL AND ANY OF THE OUTER TERMINALS YOU GET 12V.
2006-12-08 04:40:41 · answer #1 · answered by lose control 2 · 0⤊ 0⤋
Yes this is definitely a 24 V Center Tapped transformer. You can get 12 V by using either 12 terminal and the 0 terminal. Used that way you should not draw more than the 24V current rating.
If you are intending to construct a 12VDC power supply from it. Your job has been made simpler and cheaper. You will only need 2 diodes, connected in a full-wave center tapped configuration. The circuit diagram can be found in the Radio Amateurs Handbook (www.arrl.com), available at most libraries. And on the website below. Just make sure the current output is sufficient for your needs. Have fun.
2006-12-09 02:00:55 · answer #2 · answered by charley128 5 · 0⤊ 0⤋
Its a center tap transformer .
use the first two wires or last two wires to get 12 volts or the extreme end wires to get 24 Volts ..
These type of transformers provide ease of implying a two diode rectification circuit . So if you need rectification of voltage you will heave to use all three terminals , in the case the middle one will be ground and just put diodes to the other two terminals , you will get rectified signal
2006-12-09 06:01:09 · answer #3 · answered by Fire @ Wheels 1 · 0⤊ 0⤋
Well the transformer which u have is 24V AC as Secondary. You can use it as 12V by using 0-12V terminals.If you need 24V as an output you use 12V-12V terminals......almaas1974@gmail.com
2006-12-08 12:41:17 · answer #4 · answered by Almaas Ahmed 1 · 0⤊ 0⤋