B
[email protected]
- Jan 1, 1970
- 0
I have a simple 13v / 20A DC power supply I want to make variable. As
it stands right now, it is fixed volt and I guess it draws a much
current as the application needs. The supply is used normally for
powering RC car battery chargers. I want to use it to cut foam with a
hot wire. I want to vary voltage to get the proper heat in the
wire.
I don't think it would be as simple as attaching a 5K pot to the
output........ would someone be so kind as to offer an easy solution?
In my mind, I would like to build a simple divice to attach to the DC
power supply in series to the wire. Simply plug it in and have output
connecters on the down side of the variable deivice. Most, if not all
of the hobby circuits use the variable pot on to feed a voltage
regulator. I don't have the luxury to do that since the power supply
is already built and I don't want to mess it up.
Here is a link to something similar.
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXEG98&P=7
Thanks in advance.
v/r
Jerry L
it stands right now, it is fixed volt and I guess it draws a much
current as the application needs. The supply is used normally for
powering RC car battery chargers. I want to use it to cut foam with a
hot wire. I want to vary voltage to get the proper heat in the
wire.
I don't think it would be as simple as attaching a 5K pot to the
output........ would someone be so kind as to offer an easy solution?
In my mind, I would like to build a simple divice to attach to the DC
power supply in series to the wire. Simply plug it in and have output
connecters on the down side of the variable deivice. Most, if not all
of the hobby circuits use the variable pot on to feed a voltage
regulator. I don't have the luxury to do that since the power supply
is already built and I don't want to mess it up.
Here is a link to something similar.
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXEG98&P=7
Thanks in advance.
v/r
Jerry L