Simple turbo pump controller

Every fusor and fusion system seems to need a vacuum. This area is for detailed discussion of vacuum systems, materials, gauging, etc. related to fusor or fusion research.
Chris Trent
Posts: 291
Joined: Tue Jan 17, 2006 9:24 pm
Real name:

Re: Simple turbo pump controller - PCB design complete and operational

Post by Chris Trent » Sat Apr 21, 2012 4:25 pm

Thanks for the post. That high starting current surge explains a few things.

The circuit I was using works overall, but I toasted several iterations of it before moving on to a micro-controller based solution with over-current protection.

I'll post details on that later if I can get it fully up to speed.

DSchultz
Posts: 4
Joined: Tue Aug 10, 2010 6:07 am
Real name:

Re: Simple turbo pump controller - CONNECTORS

Post by DSchultz » Tue Aug 14, 2012 7:38 pm

I can now confirm that Mouser part number 654-PT06A-12-8S-SR made by Amphenol fits the TPH-055 pump connector. Cost is $28.27


How is the PCB design coming along?

Dan Schultz

Andrew Seltzman
Posts: 720
Joined: Mon Feb 02, 2004 1:02 am
Real name: Andrew Seltzman
Contact:

Re: Simple turbo pump controller - CONNECTORS

Post by Andrew Seltzman » Tue Aug 14, 2012 11:03 pm

Haven't worked much on the PCB, but I have solved the current limiting problem.

The following buck-boost DC-DC converter is available on ebay and has current limiting. This will allow you to run the turbo pump on any voltage between 5 and 35v input while preventing the initial current during startup from climbing too high. I tested this with the controller without using a resistor and it started to spin up fine. The next revision of the PCB will include a connector to use this converter to drive the h-bridge

http://www.ebay.com/itm/LM2596-LM2577-A ... 256facce20

Andrew
Andrew Seltzman
www.rtftechnologies.org

Roberto Ferrari
Posts: 336
Joined: Tue Mar 02, 2004 5:21 pm
Real name: Roberto Ferrari
Location: Argentina
Contact:

Re: Simple turbo pump controller

Post by Roberto Ferrari » Sat Sep 15, 2012 3:26 pm

Fellows

Can somebody provide me with the pinout of a TPH 050?
I don't know were the motor windings come out.

Thanks!

Roberto

Andrew Seltzman
Posts: 720
Joined: Mon Feb 02, 2004 1:02 am
Real name: Andrew Seltzman
Contact:

Re: Simple turbo pump controller

Post by Andrew Seltzman » Sat Sep 15, 2012 4:33 pm

You have to look really close at the connector, each pin has a letter next to it. The first post in the thread has the pin connections listed by letter.

Andrew
Andrew Seltzman
www.rtftechnologies.org

Roberto Ferrari
Posts: 336
Joined: Tue Mar 02, 2004 5:21 pm
Real name: Roberto Ferrari
Location: Argentina
Contact:

Re: Simple turbo pump controller

Post by Roberto Ferrari » Sat Sep 15, 2012 10:43 pm

Thanks Andrew!

Roberto

Ameen Aydan
Posts: 76
Joined: Sun Apr 15, 2018 7:33 pm
Real name: Ameen Aydan

Re: Simple turbo pump controller

Post by Ameen Aydan » Thu Apr 04, 2019 7:52 pm

Though it has been a long time, I'm dying to know... Any PCB designs coming along?

Ameen Aydan

Andrew Seltzman
Posts: 720
Joined: Mon Feb 02, 2004 1:02 am
Real name: Andrew Seltzman
Contact:

Re: Simple turbo pump controller

Post by Andrew Seltzman » Fri Apr 05, 2019 4:23 am

The older pfeiffer TC-100 controllers are getting so cheap on ebay that I would not recommend building your own at this point.
Andrew Seltzman
www.rtftechnologies.org

Ameen Aydan
Posts: 76
Joined: Sun Apr 15, 2018 7:33 pm
Real name: Ameen Aydan

Re: Simple turbo pump controller

Post by Ameen Aydan » Thu Apr 11, 2019 8:52 pm

I have searched eBay and noticed that these controllers are quite expensive. I’m going to try and make one of these, but I’m not sure how it’s gonna turn out. Maybe a few weeks. Do these controllers work with the TPH-100? TPU-50?

User avatar
Richard Hull
Moderator
Posts: 11467
Joined: Fri Jun 15, 2001 1:44 pm
Real name: Richard Hull

Re: Simple turbo pump controller

Post by Richard Hull » Thu Apr 11, 2019 9:06 pm

I'm glad to see this virtually lost circuit using common components has been pushed back to the fore. Really useful stuff.

Richard Hull
Progress may have been a good thing once, but it just went on too long. - Yogi Berra
Fusion is the energy of the future....and it always will be
Retired now...Doing only what I want and not what I should...every day is a saturday.

Post Reply