intelligent semiconductor characteristic curve instrument - diyAudio
Go Back   Home > Forums > Design & Build > Parts

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc.

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 21st August 2006, 07:28 AM   #1
locky_z is offline locky_z  China
diyAudio Member
 
Join Date: Jun 2004
Location: XH
Cool intelligent semiconductor characteristic curve instrument

I'm doing My Project is "Computer semiconductor characteristic curve" (My english is bad.So Just Show the test result.)

My project link(China) is http://www.hifidiy.net/bbs/boke.asp...owtopic.92.html

This instrument can test MOSFET / JFET / transistor / diode / SCR / resistance....

It can display the
1."Ic->Hfe" curve
Example 2SA733(PNP) "Ic->Hfe" curve:
Click the image to open in full size.
and 2SA1386's "Ic->Hfe" curve:
Click the image to open in full size.

2."Vbe(Vgs)->Ic(Id)" curve
example MTH15N20 "Vgs)->Id" curve
Click the image to open in full size.

2SK246 Vgs->Id curve
Click the image to open in full size.

3."Vce(Vds)->Ic(Id)" curve
example 2SC3519's "Vce(Vds)->Ic(Id)" curve
Click the image to open in full size.

IRF9610 "Vds->Id" curve
Click the image to open in full size.

4. 3-Terminal Regulator's Vi-Vo curve
Example 78L05
Click the image to open in full size.


The Project use to matching Devices is very excellent
this pict show how to match 9 pair 2SK246s,It Test 9 2SK246s and Show their Vgs-Id curve
Click the image to open in full size.
from the pict,you can see the 4 & 6 curve is match, and the 2 & 5
is match.
By this way ,you can match device precision.

The project use 5 integrate circuit, They's:
1 chip LTC1090(8 channel 10Bit ADC with SPI interface)
1 chip M62359 (8 channel 8 Bit DAC with SPI interface)
3 chips TDA2030 as 3 channels(B C E) programme Push-Pull Power Supply
1 chip 74HC595 as control relay
1 chip TC4050 with PC interface buffer

the instrument don't use MCU,just use PC's parallel port (LPT) to controle the DAC & ADC
Attached Images
File Type: jpg 200671915472028312.jpg (60.7 KB, 641 views)
  Reply With Quote
Old 24th August 2006, 01:29 AM   #2
diyAudio Member
 
john curl's Avatar
 
Join Date: Jul 2003
Location: berkeley ca
Looks interesting.
  Reply With Quote
Old 24th August 2006, 09:11 AM   #3
diyAudio Member
 
jacco vermeulen's Avatar
 
Join Date: Oct 2004
Location: At the sea front, Rotterdam or Curaçao
Send a message via Yahoo to jacco vermeulen
Locky-Z,

the link you posted to diyhifi.net does not work.
Can you post the link again ?

Are you willing to share the design, free or selling it ?

(you guys should install the Chinese language into your operating system, lots of great stuff on diyhifi.net, including top parts)
  Reply With Quote
Old 27th August 2006, 08:03 AM   #4
locky_z is offline locky_z  China
diyAudio Member
 
Join Date: Jun 2004
Location: XH
the result is here
http://www.hifidiy.net/bbs/dispbbs.asp?boardID=2&ID=31462&page=1

the sch public here
http://www.hifidiy.net/bbs/boke.asp?locky_z.showtopic.92.html

but software is shareware.

I have a little LTC1090 & M62359 chips, just only enought to develope and use for me.
So the board is not sell.
  Reply With Quote
Old 27th August 2006, 09:28 PM   #5
diyAudio Member
 
jacco vermeulen's Avatar
 
Join Date: Oct 2004
Location: At the sea front, Rotterdam or Curaçao
Send a message via Yahoo to jacco vermeulen
Quote:
Originally posted by locky_z
but software is shareware.
There is a ready made curve tracer software package ?
Not written in G or LabTracer ?
  Reply With Quote
Old 11th July 2007, 08:25 AM   #6
locky_z is offline locky_z  China
diyAudio Member
 
Join Date: Jun 2004
Location: XH
Default DIY Semiconductor Intelligent Characteristic Curve

the Circuit
Click the image to open in full size.
Measurement of the curve, including :
BJT (including Optocoupler) :
PNP NPN of Hfe->Ic curve (measurement of the curve is in constant Vce conditions)
PNP NPN of Vbe->Ic curve (measurement of the curve is in constant Vce conditions)
PNP NPN Vce->Ic curve (constant Ib)
P-type or N-type MOSFET and JFET :
Vgs - Id curve (under the conditions of constant Vds)
Vds - Id curve (under the conditions of constant Vgs)
Diodes / Regulators diode / LED positive, reverse curve
positive and negative 3-Terminal voltage regulator IC:
Input voltage->output voltage characteristic curve
Output voltage->current characteristic curve liabilities
also capable of measuring SCR trigger current, voltage trigger, pressure drop, maintain current parameters (not curve)

Below are the same measurement a 2SC3519 high-power BJT curve
Ic = 300-1800mA scope of Hfe ->Ic curve
Click the image to open in full size.
the IC=20-300mA scope of Hfe - Ic curve
Click the image to open in full size.
Ic=2-30mA scope of Hfe - Ic curve
Click the image to open in full size.
Ic=0.5-3mA scope of Hfe - Ic curve
Click the image to open in full size.
Ic = 50-700uA scope of Hfe - Ic curve
Click the image to open in full size.


The same 2SC3519 of Vbe-IC characteristic curve
Ic = 100-1900mA
Click the image to open in full size.
Ic = 5-160mA
Click the image to open in full size.
Ic = 0.3-14mA
Click the image to open in full size.
Ic = 10uA - 1mA
Click the image to open in full size.


Just look again at the output characteristic curve Vce->Ic
Ib constant measurement, Ib = 1-9mA
Click the image to open in full size.
Ib = 0.1-1mA
Click the image to open in full size.
Ib = 10uA - 100uA
Click the image to open in full size.
Ib = 1uA - 10uA
Click the image to open in full size.
  Reply With Quote
Old 11th July 2007, 08:26 AM   #7
locky_z is offline locky_z  China
diyAudio Member
 
Join Date: Jun 2004
Location: XH
Below are the same screen shows 12 pic 2SA1386 of Hfe - Ic characteristic curve and Vbe-Ic curve and Vce - Ic curve

Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.

By the same measurement conditions , you can show more Semiconductor's curve on same screen.
From the screen ,you can match the most matching Semiconductor



Below is the measurement IRFI740 Vgs from 3V to 3.9V step 0.1V. measuring the Vds - Id characteristic curv
Click the image to open in full size.
Below are the same measurement of the Vgs-curve Id (Id = 0-1700mA)
Click the image to open in full size.
Vgs-curve Id (Id = 0-25mA)

Click the image to open in full size.
Id = 0-1mA
Click the image to open in full size.



Measurement of P-MOS IRF9630 the Vgs->Id curve
Click the image to open in full size.



Measuring diode in a variety of different current of VF characteristics (1N5401 BYV32 FR305 1N4 001 MBR3060 1N4148)
Click the image to open in full size.

Click the image to open in full size.
Click the image to open in full size.
Click the image to open in full size.


Measuring 6 V Regulators diode positive / negative characteristic curve
Click the image to open in full size.
  Reply With Quote
Old 11th July 2007, 08:37 AM   #8
locky_z is offline locky_z  China
diyAudio Member
 
Join Date: Jun 2004
Location: XH
At the same screen to display the JFET's Vgs->Id and Vds->Id characteristic curve (2SK 373GR)
Click the image to open in full size.

Let's look at different suffix of 2SK246 the Vgs->Id curve (GR and Y suffix)
Click the image to open in full size.


Exchange the same 2SK246's D, S pin and measurement they Vgs->ID curve
Click the image to open in full size.


The system also is a characteristic of different polarity to contrast the characteristics of the tubes, For example, the following is the system provides functional polarity reversal and contrast 2SK246GR and 2SJ103GR the Vgs->ID characteristics curve

Click the image to open in full size.
  Reply With Quote
Old 12th September 2008, 01:54 AM   #9
diyAudio Member
 
Join Date: Sep 2008
Default Curve Tracer

Does anyone know of any active links for Lock_Z DIY curve tracer and software. This project looks like a cool unit for using at home with out all the major expenses of obtaining a curve tracer from E-Bay. If not does any one know of a project using a USB measurement unit-( the cheaper ones) for doing this with say relays on the digital control ports.
  Reply With Quote
Old 17th September 2008, 03:40 AM   #10
locky_z is offline locky_z  China
diyAudio Member
 
Join Date: Jun 2004
Location: XH
The schematic had changed a little,see below.

the software can download from
http://bbs.hifidiy.net/attachment.php?aid=246124
http://bbs.hifidiy.net/attachment.php?aid=246125

It is Chinese language version , only support one curve trace.

the board no MCU so it not support USB interface,only support LPT interface
Attached Images
File Type: png sch v2.png (75.3 KB, 321 views)
  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
Intelligent switched in cars - ISO10483 peranders Everything Else 1 3rd April 2009 07:14 PM
hello to all intelligent life forms out there ampzillason Introductions 1 25th October 2008 03:19 PM
Computer semiconductor characteristic curve Project locky_z Everything Else 4 4th May 2006 05:17 AM


New To Site? Need Help?

All times are GMT. The time now is 05:26 AM.


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