Re: [CAD_CAM_EDM_DRO] MPJA transformer wiring???

In a message dated 11/12/2005 6:04:28 AM Mountain Standard Time,
rogersmach@... writes:

The yellow would just be used for 12v only secondary.



Actually because the Yellow is the Center tap of the winding it will allow
several things,
At full amps

2. Ground the Yellow, use two regular diodes at the ends, and it becomes a
fullwave 12 V input power supply. At full current.

3. Ground the yellow and use two diodes at the ends with polarities
reversed, and you will have two half wave power supplies, one +, the other -, with
reference to ground. Both at half rated current.

4. Just use one diode with the yellow and one end, and you will have a half
wave 12 volt power supply. At half current.

5. Use the yellow and one end with a bridge, and have a full wave 12 volt
supply. At full current.

6. Ground one end, and use a diode on the yellow and one on the other end,
and have a 12 V, and a 24 V half wave power supply. Diodes can be reversed on
either for a neg. or pos. power supply. At half current.

Some, give less than max current, but they are usable.

All of the power supplies with careful study, can give different polarities
with no ill effects. Mainly depends on what is grounded, and the directions of
the diodes, or what is grounded at the bridge. +, or -.

There are other possibilities but not much use to us.

Hope I got all of the right this time.

bill


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