Author Topic: Yet another fast edge pulse generator  (Read 169759 times)

0 Members and 1 Guest are viewing this topic.

Offline Leo BodnarTopic starter

  • Frequent Contributor
  • **
  • Posts: 801
  • Country: gb
Re: Yet another fast edge pulse generator
« Reply #25 on: July 13, 2017, 02:50:24 pm »
I think I have the design ready.  I am very happy with its performance and form-factor.  I might continue tweaking it a little bit but it's necessary to declare any project ready to ship at some point.  So it is.

Here is the list of features it has ended up with.

  • Fixed 10MHz pulse train with fast rise and fall times.
  • Rise time and fall time around 50ps
  • Variable amplitude between 100mVpp and 1Vpp (via USB .)  AC coupled.
  • Trigger output ~1.5Vpp amplitude into 50R load.  AC (default) or DC (solder jumper) coupled
  • BNC jack for direct connection to oscilloscope input
  • USB powered. Power requirement is 200mA at 5V.  Can be powered from a USB charger.

I have about a dozen PCBs and can supply them starting from next week at £50 plus shipping for a fully assembled, tested and ready to go unit.  This will barely cover my design costs and if this becomes a commercial product will probably be revised (up or down.)
As a bonus I will print out individual rise/fall time screenshots for each unit on my CSA 803A + SD-26 test setup for this run and supply them with the device.

It would be helpful if you indicate your interest by posting here so that I know how many units to assemble.

Thanks
Leo

P.S. I hope this is not considered heavily commercial for this forum.  If you think it is please let me know.
« Last Edit: July 13, 2017, 03:01:39 pm by Leo Bodnar »
 
The following users thanked this post: electrolust, Andie

Offline lukier

  • Supporter
  • ****
  • Posts: 634
  • Country: pl
    • Homepage
Re: Yet another fast edge pulse generator
« Reply #26 on: July 13, 2017, 02:58:20 pm »
I have about a dozen PCBs and can supply them starting from next week at £50 plus shipping.  This will barely cover my design costs and if this becomes a commercial product will probably be revised (up or down.)
It would be helpful if you indicate your interest by posting here so that I know how many units to assemble.

I would be interested, but please clarify, £50 for the PCB, PCB + parts or assembled kit?
 

Offline Leo BodnarTopic starter

  • Frequent Contributor
  • **
  • Posts: 801
  • Country: gb
Re: Yet another fast edge pulse generator
« Reply #27 on: July 13, 2017, 03:02:31 pm »
I would be interested, but please clarify, £50 for the PCB, PCB + parts or assembled kit?
Fully assembled, tested and ready to go unit.
Thanks
Leo
 

Offline lukier

  • Supporter
  • ****
  • Posts: 634
  • Country: pl
    • Homepage
Re: Yet another fast edge pulse generator
« Reply #28 on: July 13, 2017, 03:04:44 pm »
Then count me in :)
 

Offline rx8pilot

  • Super Contributor
  • ***
  • Posts: 3634
  • Country: us
  • If you want more money, be more valuable.
Re: Yet another fast edge pulse generator
« Reply #29 on: July 13, 2017, 04:27:42 pm »
I would be interested, but please clarify, £50 for the PCB, PCB + parts or assembled kit?
Fully assembled, tested and ready to go unit.
Thanks
Leo

Totally. Want. One.  :-+ :-+
Factory400 - the worlds smallest factory. https://www.youtube.com/c/Factory400
 

Offline H.O

  • Frequent Contributor
  • **
  • Posts: 807
  • Country: se
Re: Yet another fast edge pulse generator
« Reply #30 on: July 13, 2017, 04:54:50 pm »
Definitely, I'd take one if I may, thank you!
 

Offline chriswebb

  • Supporter
  • ****
  • Posts: 143
  • Country: us
Re: Yet another fast edge pulse generator
« Reply #31 on: July 13, 2017, 05:10:19 pm »
I too would be interested in this device.
Always learning. The greatest part of life is that there will always be more to learn.
 

Offline JPortici

  • Super Contributor
  • ***
  • Posts: 3452
  • Country: it
Re: Yet another fast edge pulse generator
« Reply #32 on: July 13, 2017, 06:06:22 pm »
I want one too! :D
 

Online richnormand

  • Supporter
  • ****
  • Posts: 674
  • Country: ca
Re: Yet another fast edge pulse generator
« Reply #33 on: July 13, 2017, 06:26:52 pm »
Put me down for one also.
Cheers and thanks.
Repair, Renew, Reuse, Recycle, Rebuild, Reduce, Recover, Repurpose, Restore, Refurbish, Recondition, Renovate
 

Offline tecman

  • Frequent Contributor
  • **
  • Posts: 444
  • Country: us
Re: Yet another fast edge pulse generator
« Reply #34 on: July 13, 2017, 06:58:32 pm »
I'm good for one as well

paul
 

steverino

  • Guest
Re: Yet another fast edge pulse generator
« Reply #35 on: July 13, 2017, 07:01:52 pm »
+1 please and thank you
 

Offline Leo BodnarTopic starter

  • Frequent Contributor
  • **
  • Posts: 801
  • Country: gb
Re: Yet another fast edge pulse generator
« Reply #36 on: July 13, 2017, 07:07:18 pm »
Thank you, gentlemen.  I'm on it.
 

Offline JPortici

  • Super Contributor
  • ***
  • Posts: 3452
  • Country: it
Re: Yet another fast edge pulse generator
« Reply #37 on: July 13, 2017, 08:06:18 pm »
let us know if you put up a preorder/page list :-+

i WANT one when they'll be ready, but would you consider in the future a new version, powered by let's say 2 coin cells? instead of having to connect a usb cable...

where did you get your pcb made? i like them very much, simillar to the boards from one of our assemply houses (they're quite expensive to set up though, for hobby projects)
« Last Edit: July 13, 2017, 08:12:06 pm by JPortici »
 

Offline tatus1969

  • Super Contributor
  • ***
  • Posts: 1273
  • Country: de
  • Resistance is futile - We Are The Watt.
    • keenlab
Re: Yet another fast edge pulse generator
« Reply #38 on: July 13, 2017, 09:28:54 pm »
Great job!

If your batch isn't sold out, I would also love to buy one.
We Are The Watt - Resistance Is Futile!
 

Offline Leo BodnarTopic starter

  • Frequent Contributor
  • **
  • Posts: 801
  • Country: gb
Re: Yet another fast edge pulse generator
« Reply #39 on: July 13, 2017, 09:42:55 pm »
I will try to accommodate everyone :)  Thanks, guys.
 

Offline orin

  • Frequent Contributor
  • **
  • Posts: 445
  • Country: us
Re: Yet another fast edge pulse generator
« Reply #40 on: July 13, 2017, 09:52:38 pm »
Add me to the list too please.
 

Offline electrolust

  • Supporter
  • ****
  • Posts: 562
  • Country: us
Re: Yet another fast edge pulse generator
« Reply #41 on: July 14, 2017, 01:03:33 am »
One for me, if you can ship to US.  I'm happy to take a single US shipment as remail them to final destination.
 
The following users thanked this post: rx8pilot

Offline marshallh

  • Supporter
  • ****
  • Posts: 1462
  • Country: us
    • retroactive
Re: Yet another fast edge pulse generator
« Reply #42 on: July 14, 2017, 02:25:11 am »
You can set up a public Google Docs spreadsheet and link it, people can add their names to the list. Worked well for me, no need to trawl through posts to see who wanted one  :-+
Verilog tips
BGA soldering intro

11:37 <@ktemkin> c4757p: marshall has transcended communications media
11:37 <@ktemkin> He speaks protocols directly.
 

Offline all_repair

  • Frequent Contributor
  • **
  • Posts: 716
Re: Yet another fast edge pulse generator
« Reply #43 on: July 14, 2017, 04:03:25 am »
May I order one.  Thank you.
 

Online Berni

  • Super Contributor
  • ***
  • Posts: 4922
  • Country: si
Re: Yet another fast edge pulse generator
« Reply #44 on: July 14, 2017, 05:18:15 am »
I would like to buy one too
 

Offline ivaylo

  • Frequent Contributor
  • **
  • Posts: 661
  • Country: us
Re: Yet another fast edge pulse generator
« Reply #45 on: July 14, 2017, 05:39:56 am »
one more please...
 

Offline Leo BodnarTopic starter

  • Frequent Contributor
  • **
  • Posts: 801
  • Country: gb
Re: Yet another fast edge pulse generator
« Reply #46 on: July 14, 2017, 07:31:48 am »
Thanks, all.  The purpose of having people expressing interest is so that I can estimate suitable batch size and purchase components in correct quantities. This has worked great so far, I see that I need to run another batch of PCBs early next week.

Thank for your offer electrolust, I can ship with FedEx or Airmail around the world from our small office so this is not a problem.  We get good rates.
 

Offline capt bullshot

  • Super Contributor
  • ***
  • Posts: 3033
  • Country: de
    • Mostly useless stuff, but nice to have: wunderkis.de
Re: Yet another fast edge pulse generator
« Reply #47 on: July 14, 2017, 10:41:16 am »
Count one in for me too ...
Safety devices hinder evolution
 

Online Andie

  • Contributor
  • Posts: 18
  • Country: de
Re: Yet another fast edge pulse generator
« Reply #48 on: July 14, 2017, 11:29:54 am »
Leo,

awesome! I would like to buy one, too!

Regards,
Andreas
 

Offline The Electrician

  • Frequent Contributor
  • **
  • Posts: 743
  • Country: us
Re: Yet another fast edge pulse generator
« Reply #49 on: July 14, 2017, 03:34:38 pm »
Put me on the list.  Another great forum project showing up on a great forum.
« Last Edit: July 14, 2017, 03:36:36 pm by The Electrician »
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf