Re: [CAD_CAM_EDM_DRO] Re: Power Supply-- more questions

Jarrett,

If you want to use a Plitron transformer, I will look up the part number for
you. I would recommend using a transformer with about 48 volts AC output.

Most of their transformers come with two sets of output windings. At 48 VAC,
I would run them in parallel.


Bob Campbell
Bob Campbell Designs
www.Campbelldesigns.com
Mach 2/3 breakout boards
Relay boards
Spindle Speed boards
Stepper motors
Plasma Torch Height control

----- Original Message -----
From: "Jarrett & Heidi Johnson" <hjjohnson@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Sunday, January 08, 2006 11:45 PM
Subject: Re: [CAD_CAM_EDM_DRO] Re: Power Supply-- more questions


> Bob, I got reading your white page about power
> supplies and what not that you sent me a link for.
> In it you state that you used a Plitron Toroid
> transformer # 077015201 This unit is rated at 22V
> and 6.28A, however in your text you noted that it
> will produce 13.26A [ ish] so.. I'm wondering if
> it had two leads which you could connect to double
> the current? If so.. then spec'ing a Toroid from
> them just got a whole lot easier.
>
> Thanks!
> Jarrett
>
>
>
>> Jarrett,
>>
>> You do not need 25 times. I would go with a 48
>> VAC transformer which would
>> give you about 67 volts DC.
>>
>> Your Gecko drives will not draw the full 24
>> amps. You need to derate it by a
>> factor of about .6 which brings it down to about
>> 16 amps.
>>
>> I would go with one 18,000 mfd capacitor.
>>
>> Bob Campbell
>> Bob Campbell Designs
>> www.Campbelldesigns.com
>> Mach 2/3 breakout boards
>> Relay boards
>> Spindle Speed boards
>> Stepper motors
>> Plasma Torch Height control
>
>
>
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