How do i connect a 5 pin transformer?

[Electro132]

Hi,

I want to connect a 5 pin transformer to my circuit. It converts from 1.5 V to 330 V (or more) and has 5 pins - 2 pins input and 3 output. I would like to know where each of the pins connect to? I was thinking of just cancelling the middle pin but wanted to know what it was for since i've heard of half voltages?

Thanks

 

[Harald Kapp]

Your diagram doesn't match the description: 3 inputs, two outputs. Which one is correct?

Edit: both types exist and have their applications:

1. 3 inputs, two outputs: often used to make the power supply compatible to 115 V / 230 V systems. For 115 V systems you connect the two primary windings in parallel. For 230 V systems you connect the two primary windings in series. In bot cases the same output voltage appears and power is the same (apart from little differences resulting from 50 Hz or 60 Hz systems.
2. 2 inputs, three outputs: used with one mains voltage only (typically either 115 V or 230 V) and two output voltages. Often the center tap is defined as 0 V and the two outer taps are used to create a +/- supply.
   It can also be used to create a single supply as for example in this circuit.

 

[Electro132]

I got the transformer from a flash camera which converts 1.5v to 330 v. So i'm guessing it is 3 inputs and 2 outputs but i'm still trying to figure it out. I have attached the original circuit the transformer was on (both front and back) so you can see what i mean.

 

[Harald Kapp]

The circuit could be very similar to this one. You'd have to trace the circuit layout and components to create the equivalent schematic for your flash.

 

[Electro132]

Its ok Harald, i found the answer.

http://www.lucidscience.com/pro-camera flash taser-3.aspx


Thanks anyway