how do i get 9-12v ac from this transformerOutput Power: 132W
Insulating strength: 10Mohm, AC2000V/1min
Input Voltage (AC): 115V /230V 50Hz/60Hz
Output Voltage (AC): 0-200-220-260-280-320 (100mA) x2
0-6.3V (2A) x2
Except that you need to keep the current to the lesser of the two windings that are in series.
You could parallel the two 6V windings for 4A. All the windings will need to be conected in the right relative polarities.
I am installing a MV04 2 Channel ALPS IR Remote Control Volume & Input Selection Module on a preamp IR remote control
ALPS Motorized volume control for 2 channels, board size: 120mm x 55mm
Input selection (4-to-1 way, stereo), board size: 130mm x50mm
input impedance: 100K Ohms
Supply voltage: 9-12V AC
Use the mfr's spec sheet if you have it. Otherwise, find out by trial and error.
One way in series they will add in voltage, the other way they'll subtract.
You won't need to parallel the 6V windings, since 2A is plenty.
Big overkill on the power rating of the transformer. Why not use a 9 or 12VAC wall wart?
No, because they're each being used for two different circuits. They can't be connected together.
You may be able to use ONE of the 6V windings (not the one for the 6X4 rectifier) with a voltage doubler
rectifier to get around 16VDC, and then use a regulator to reduce it to 9-12VDC. But this entire motor/drive
circuit will have to float and cannot be connected to ground anywhere, because of the other circuit that also
uses the same winding.
To be sure that you can do this, post the schematics of the boards that you are using.