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

Posted: Sat Apr 21, 2012 4:25 pm
by Chris Trent
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.

Re: Simple turbo pump controller - CONNECTORS

Posted: Tue Aug 14, 2012 7:38 pm
by DSchultz
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

Re: Simple turbo pump controller - CONNECTORS

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

Re: Simple turbo pump controller

Posted: Sat Sep 15, 2012 3:26 pm
by Roberto Ferrari
Fellows

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

Thanks!

Roberto

Re: Simple turbo pump controller

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

Re: Simple turbo pump controller

Posted: Sat Sep 15, 2012 10:43 pm
by Roberto Ferrari
Thanks Andrew!

Roberto

Re: Simple turbo pump controller

Posted: Thu Apr 04, 2019 7:52 pm
by Ameen Aydan
Though it has been a long time, I'm dying to know... Any PCB designs coming along?

Ameen Aydan

Re: Simple turbo pump controller

Posted: Fri Apr 05, 2019 4:23 am
by Andrew Seltzman
The older pfeiffer TC-100 controllers are getting so cheap on ebay that I would not recommend building your own at this point.

Re: Simple turbo pump controller

Posted: Thu Apr 11, 2019 8:52 pm
by Ameen Aydan
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?

Re: Simple turbo pump controller

Posted: Thu Apr 11, 2019 9:06 pm
by Richard Hull
I'm glad to see this virtually lost circuit using common components has been pushed back to the fore. Really useful stuff.

Richard Hull