DIY Curve Tracer for PC - Page 26 - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 10th July 2012, 01:41 PM   #251
locky_z is offline locky_z  China
diyAudio Member
 
Join Date: Jun 2004
Location: XH
Their no polarity inverter circuit,
The PNP measure diagram is below
Click the image to open in full size.
If test PNP, System will set Eout to 36V,
And step down the Bout inorder to generate Ib.
System measure the Vrb,Vrc and calculate the Ic and Ib and Hfe.

The Vrb Vrc measure circuit is below
Click the image to open in full size.
It use a OP07 as follower, The op07 bias current and offset current will have some voltage drop on RB. But Op07 bias current and offset current less 5nA,and Op07 offset voltage is less 1mV,so OP07 only a little affect to DTU base current.
Attached Images
File Type: gif 1.gif (9.3 KB, 1208 views)
File Type: gif 2.GIF (5.8 KB, 1188 views)
  Reply With Quote
Old 11th July 2012, 10:30 AM   #252
locky_z is offline locky_z  China
diyAudio Member
 
Join Date: Jun 2004
Location: XH
Softwere update ,It can support script control.
Click the image to open in full size.

The script is

V0=2.5
mode i
setrc 0
Eout V0
startwatch
color=random(999999)
for i=2 to 10
setib i
notice "IB=",i
for j=0 to 72
cout j/2+V0
waitrelay
getadc 2
ic=1000*vrc/currentRc
ib=1000*vrb/currentrb
curvepoint str(i),vce,ic,ib,ve
next
endcurve str(i),color
cout v0
next
d=stopwatch()
notice "time:",d
end

The software link
http://www.diyaudio.com/forums/attac...871_script.zip
  Reply With Quote
Old 13th July 2012, 01:48 AM   #253
locky_z is offline locky_z  China
diyAudio Member
 
Join Date: Jun 2004
Location: XH
software update 2012.7.13
Bug fix:
1.if use negative parameter in setIb ,It have error.
2.add initialization currentRB,currentRC variables when press ‘run' button.
http://www.diyaudio.com/forums/attac...871_script.zip
  Reply With Quote
Old 13th July 2012, 02:03 AM   #254
carpin is offline carpin  Netherlands
diyAudio Member
 
carpin's Avatar
 
Join Date: Oct 2007
Thanks locky_z for the update
  Reply With Quote
Old 13th July 2012, 08:47 AM   #255
diyAudio Member
 
Bksabath's Avatar
 
Join Date: Dec 2007
Hi locky_Z

Maybe this has been posted before
IS there a manual for the calibration of the curve tracer?

And maybe, more important, a way to return the curve tracer to original calibration if things go wrong?
  Reply With Quote
Old 24th July 2012, 03:01 PM   #256
diyAudio Member
 
Stefanoo's Avatar
 
Join Date: Apr 2006
Location: italia - ora USA -WI
Sorry to interject here.
I am wondering if a KIT for the USB Curve Tracer is avaialable for purchasing.

Thanks,
__________________
Stefano
  Reply With Quote
Old 24th July 2012, 03:14 PM   #257
diyAudio Member
 
Join Date: Mar 2009
Stefano,

See the link to eBay in Locky_Z signature

locky_z's Intelligent curve tracer | eBay
Intelligent curve tracer main board | eBay

Fred
  Reply With Quote
Old 24th July 2012, 03:36 PM   #258
diyAudio Member
 
Stefanoo's Avatar
 
Join Date: Apr 2006
Location: italia - ora USA -WI
thank you so much.
I will buy one...probably the finished product.
__________________
Stefano
  Reply With Quote
Old 27th July 2012, 09:00 AM   #259
locky_z is offline locky_z  China
diyAudio Member
 
Join Date: Jun 2004
Location: XH
I wrote a component of the Tracer installation/ calibration/ diagnostic manual in chinese,
Who can help translate into English.
Attached Files
File Type: zip CT3 Install manual.zip (463.6 KB, 64 views)
  Reply With Quote
Old 27th July 2012, 01:20 PM   #260
diyAudio Member
 
Bksabath's Avatar
 
Join Date: Dec 2007
Quote:
Originally Posted by locky_z View Post
I wrote a component of the Tracer installation/ calibration/ diagnostic manual in chinese,
Who can help translate into English.
I more than happy to help with tidy up of this but not good enough to start from scratch.

Your English is not to bad and if you get started we can get there...
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Using The Tektronix 575 Curve Tracer Mark A. Gulbrandsen Solid State 29 21st May 2012 08:01 PM
B-H Curve Tracer gpapag Equipment & Tools 9 16th January 2011 09:22 PM
curve tracer? maxpou Solid State 4 24th October 2009 06:29 PM
Virtual Tek 576/577 curve tracer in EWB V10 jackinnj Equipment & Tools 0 1st March 2007 02:41 PM
FS: tektronix 575 curve tracer SQ Kid Swap Meet 3 11th July 2004 05:22 PM


New To Site? Need Help?

All times are GMT. The time now is 09:24 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2