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Thread: A3977 Board buy if interested

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pminmo A3977 Board buy if interested 11-15-2004, 06:17 PM
OCNC Is the '2nd version... 11-15-2004, 10:55 PM
ynneb Yep Phil put me down for 3.... 11-15-2004, 11:19 PM
pminmo OCNC (Chris) Same version,... 11-16-2004, 01:14 AM
OCNC I follow you regarding R5 but... 11-16-2004, 04:08 AM
pminmo Chris, Your correct, it is... 11-16-2004, 05:04 AM
pminmo Unfortunately due to a number... 11-26-2004, 05:14 PM
tekno wow bummer... was looking... 12-02-2004, 04:46 AM
Shanghyd Driver Board Needed 11-26-2004, 08:38 PM
pminmo Suggest you do a google... 11-26-2004, 08:57 PM
Breaker Does anyone know where to get... 12-31-2004, 11:21 PM
andyew Any1 has any power supply... 01-10-2005, 03:09 PM
pminmo While not as good as a... 01-10-2005, 10:53 PM
andyew Thanks phil.. How big is a... 01-11-2005, 01:55 AM
andyew sorry for long winded... ... 01-11-2005, 01:58 AM
motomitch1 Heres some 10 amp... 01-11-2005, 04:06 AM
pminmo Greater than 40 vdc, 4700uf... 01-11-2005, 04:02 AM
andyew Thanks Guys! I've found... 01-11-2005, 01:55 PM
pminmo andyew, Looks like your on... 01-11-2005, 10:06 PM
andyew Thanks Phil! i've oredi... 01-12-2005, 02:47 AM
BackHar Phil, do you have the eagle... 06-13-2006, 12:28 PM
pminmo the pdf is on my website. 06-13-2006, 05:18 PM
smarbaga i have dis-assembled my... 01-08-2007, 12:08 AM
StarPilot I bought the boards and am... 04-05-2007, 08:42 PM
pminmo Digikey A3977KED.... 04-05-2007, 09:48 PM
h_bernard pbl A3977 joes fan 08-15-2007, 10:32 AM
StarPilot Thanks I went to digikey to... 04-06-2007, 12:36 PM
pminmo Yes, the suffix past the KED... 04-06-2007, 03:02 PM
pminmo Do you have a jumper on JP1? ... 08-15-2007, 03:25 PM
h_bernard hello, I have a jumper in... 08-15-2007, 08:16 PM
h_bernard sorry but you sais in a pdf ... 08-15-2007, 08:25 PM
pminmo Which copper version did are... 08-16-2007, 07:09 PM
h_bernard hello, this one, Joe's... 08-16-2007, 07:55 PM
pminmo The instructions are for the... 08-16-2007, 08:55 PM
h_bernard hello, sorry large week. I... 08-18-2007, 09:33 PM
pminmo pfd at 2.5V is set to mixed... 08-19-2007, 07:20 PM
h_bernard hello, thank you, i going... 08-19-2007, 09:50 PM
h_bernard hello, thank phil. have... 08-23-2007, 10:16 PM
nofx Matching motor to controller 11-01-2009, 05:14 AM
synchron hi there, I'm new to the... 12-17-2009, 11:43 AM
pminmo You can modify Vref to alter... 12-17-2009, 11:50 PM
synchron Digital Pot Worked Fine but... 01-28-2010, 06:23 PM
synchron I nearly forgot. I thought... 01-28-2010, 06:31 PM
pminmo Your hearing the frequencies... 01-29-2010, 01:05 AM
synchron Thanks for the chopper... 01-29-2010, 08:58 AM
pminmo You can't get rid of the... 01-29-2010, 03:16 PM
pminmo In general, most monolythic... 11-03-2011, 07:02 PM
  1. 11-15-2004, 06:17 PM #1
    pminmo is offline Gold Member
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    A3977 Board buy if interested

    I've verified that the 2nd version of this board is up and running. (although there is one resistor that needs to be left off) I'm not intereseted in making a profit, just helping some DIY'ers. I've asked for a quote on buying additional blank boards. These are double sided, plated through hole, silk screen with solder mask boards. Warning (chair) It does take good soldering skills, a fine soldering iron, and good eyesite to solder the 44 pin surface mount part. Pics here, but the blank board picture doesn't do the silkscreen justice.

    http://webpages.charter.net/pminmo/3977.jpg
    http://webpages.charter.net/pminmo/proto3977.jpg

    I suspect the cost to be $8 or a little under per board. i.e. $24 or less for 3 plus postage. If there is any interest send me a private message, or an email via the zone. I don't think I want to hassle with mailing outside of the US, as I have not done it before.

    Phil
    Attached Thumbnails Attached Thumbnails proto3977.jpg   3977.jpg  
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