Computer semiconductor characteristic curve Project
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?...wtopic.92.html
This instrument can test MOSFET / JFET / transistor / diode / SCR / resistance....
The VCE measure range from 0 to 36V
The IC measure range from 2mA to 3A
this 11's 2SK216 Vgs->Id curve
Looks very nice. I only we could find someone to translate.
I presume the device is somehow connected to the PC via USB?
I use LPT port to connect PC
The component just use below
LTC1090/LTC1290 x 1
TL431 x 1
and some other general component
the pict is two matching 2SA733 Ic->Hfe curve
will you make the board layout and the programming file available so that we can build a curve tracer too ?
What does the collector/drain supply look like ?
I use 3 Channel DAC to driver 3 x TDA2030 as B/C/E Channel Power Supply.
When Channel_C is output 38V,Channel_E is 2V,so VCE is +36V.
When Channel_C is output 2V,Channel_E is 38V,so VCE is -36V.
So we can test P or N type BJT/MOS/J-FET..... And only use single 40V power supply.
The circuit and PCB file as upper link.
But it is Chinese. and i don't know to translate to English.
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