Old 08-05-2014, 10:21 PM #1
Ehgemus's Avatar
Class 3R Laser
 
Join Date: Feb 2009
Location: KY.
Posts: 1,385
Rep Power: 14767
Ehgemus has a reputation beyond reputeEhgemus has a reputation beyond reputeEhgemus has a reputation beyond reputeEhgemus has a reputation beyond reputeEhgemus has a reputation beyond reputeEhgemus has a reputation beyond reputeEhgemus has a reputation beyond reputeEhgemus has a reputation beyond reputeEhgemus has a reputation beyond reputeEhgemus has a reputation beyond reputeEhgemus has a reputation beyond repute
Ehgemus Ehgemus is offline
Class 3R Laser
Ehgemus's Avatar
 
Join Date: Feb 2009
Location: KY.
Posts: 1,385
Rep Power: 14767
Ehgemus has a reputation beyond reputeEhgemus has a reputation beyond reputeEhgemus has a reputation beyond reputeEhgemus has a reputation beyond reputeEhgemus has a reputation beyond reputeEhgemus has a reputation beyond reputeEhgemus has a reputation beyond reputeEhgemus has a reputation beyond reputeEhgemus has a reputation beyond reputeEhgemus has a reputation beyond reputeEhgemus has a reputation beyond repute
Default Help me with my electrical project.

As some of you know I have been building some titanium hosts and anodizing them. Anodizing titanium is based on dc voltage, each volt for 1-130 volts give you a different color. So I need a power supply that is adjustable from 1-130 dc volts. Current does not have to be high at all 1-2 amp is plenty. A power supply for this purpose is about 230 bucks so I would like to build one instead.

So what I have so far is a transformer that I rewound and it puts out 149v ac after I run it though a rectifier I have 135 volts dc. What I need help with is the voltage control itself. I need to be able to adjust it anywhere from 1-130 volts. I thought about a ceiling fan switch but I don't thank it's going to give me the full range that I need, any ideas on this? Thanks


Ehgemus is offline   Reply With Quote


















Old 08-06-2014, 02:05 AM #2
Class 4 Laser
 
Join Date: May 2007
Location: Queensland, AU
Posts: 7,549
Rep Power: 495363
Things has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond repute
Things Things is offline
Class 4 Laser
 
Join Date: May 2007
Location: Queensland, AU
Posts: 7,549
Rep Power: 495363
Things has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond repute
Default Re: Help me with my electrical project.

I have a friend that got a high voltage adjustable PSU for this purpose, was fairly cheap too IIRC and it even had digital control, if you wanted to use it on a CNC-type setup. I'll see if I can find it.
Things is offline   Reply With Quote
Old 08-06-2014, 03:44 AM #3
Sigurthr's Avatar
Class 3B Laser
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 219430
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Sigurthr Sigurthr is offline
Class 3B Laser
Sigurthr's Avatar
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 219430
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Default Re: Help me with my electrical project.

If you still want to DIY it yourself just get an inexpensive Variac to power that transformer with. Any other solution will be expensive or (relatively) difficult to construct.
__________________
Amateur Multispectral Photographer - [X-Ray, UV, Vis, IR]
Amateur Electrical Engineer
Autodidact
Tesla Coil Expert
Sigurthr is offline   Reply With Quote
Old 08-06-2014, 09:17 AM #4
The Lightning Stalker's Avatar
Class 3B Laser
 
Join Date: Aug 2013
Location: MI, US
Posts: 2,655
Rep Power: 6070
The Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond repute
The Lightning Stalker The Lightning Stalker is offline
Class 3B Laser
The Lightning Stalker's Avatar
 
Join Date: Aug 2013
Location: MI, US
Posts: 2,655
Rep Power: 6070
The Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond reputeThe Lightning Stalker has a reputation beyond repute
Default Re: Help me with my electrical project.

I agree. Variacs are the way to go. Then into a rectifier
and possibly a capacitor. Just be extra careful with
shorts. I was trying to anodize aluminum the other day
and a short blew my diodes. Shorts can develop for
seemingly no reason.
__________________
ALL NEW MEMBERS MUST READ THIS!!! --> http://www.laserpointersafety.com

"Where, now, is the way by which the light distributes itself" - Job 38:24

YouTube Channel
The Lightning Stalker is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



























Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 11:07 AM.


Powered by: vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC