Im scaling down the waveform output of a center tapped transformer from 12VAC to 1VAC. In simulation everything works fine. When I tried it on an actual center tapped transformer, the transformer heats up and I have no proper reading. What am I doing wrong?
I attached a photo a the circuit

 

You have a dead short between the outputs of the transformer.

 

what connection am i going to use?

 

hi,
Try this.
E

 

Just use the centre tap and one end of the winding. There will be 24 volts between the ends of the winding which you have shorted out. What are you trying to achieve ? As you have a meter that will measure 12 volts why do you need scale the voltage down to 0.75 volts ? (This is based on the left hand meter having an infinite internal resistance. Have you taken its actual internal resistance into account in your calculations ?
Les.

 

I want to scale down the output waveform of the transformer from 12VAC to at least 1VAC. So I made a voltage divider to connected to the transformer. I want to have a 1VAC voltage output across R4. what proper connection am I going to use?

 

ericgibbs: from your circuit I got 24VAC output from the transformer. I only want the 12VAC output

 

So use the centre tap and one of the end windings to get 12Vac, use 11K and 1K resistors across the transformer, measure the voltage across the 1K....

 

It worked thanks

 

ericgibbs: from your circuit I got 24VAC output from the transformer. I only want the 12VAC output

Hi,
OK, use this option.
You did say 12V centre tapped, you should have said 12V CT 12V ie: 24V centre tapped.
E

 

In simulation everything works fine. When I tried it on an actual center tapped transformer, the transformer heats up and I have no proper reading.

Which demonstrates clearly that simulation results need to be interpreted correctly and taken with a pinch of salt.