Re: [CAD_CAM_EDM_DRO] 80v power supply

NO NO NO The triac will not change the voltage, only the length of tome it
is on. Also you must remember that 65 volts AC through a full wave rectifier
will give you about 87 volts DC. You are looking for a transformer that will
produce 50 to 56 volts AC.
Darrell

----- Original Message -----
From: "Ron Ginger" <ginger@...>
To: "CAD_CAM_EDM_DRO@onelist.com" <CAD_CAM_EDM_DRO@egroups.com>
Sent: Monday, August 21, 2000 1:21 PM
Subject: [CAD_CAM_EDM_DRO] 80v power supply


> As I noted in another note, Im getting into servo motors! My first
> problem is that the motors Ive found are 80v, 4Amp motors. I have not
> been able to find an 80 v supply.
>
> So, it seems to me that since the power line is 120 v I shuld be able to
> do a simple power supply. Suppose I took a light dimmer- the common
> triac variety, and hooked its output to a bridge rectifier, then to a
> filtetr cap. I should be able to adjust the dimer to the right value to
> hold the output voltage to 80v.
>
> I understand the issues of not haivng an isolation transformer here, but
> I can work with that, Will the basic triac work to give me a lower
> output voltage, or will it be to badly regulated?
>
> Any suggestion for a simple regulator that will work here?
>
> ron
>
>
>
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