My Intelligent Curve Tracer

[locky_z]

It use USB or RS232 interface communication with PC and show the semiconductor curve in PC screen.

 It can measure BJT's Ic->Hfe curve


Can measure Vce-Ic curve


measure some semiconductor transmission curve,such as Vbe-Ic / Vgs-Id


also FET’s Vds-Id curve measure,Even can study Vgs & Rds relationship

Upper is six IRF630 Vds-Id curves,their Vgs is 5V 6V 7V 8V 9V 10V.
 The Vds-Id curve only show Vds=0~1V range,so you can use system’s calculate function get the slope value,
 The window in the central show six curve’s slope, Measurement unit is V/mA, multiplicate 1000 is Rds,
 So under Vgs=10V,Rds is 0.000334649870637804*1000=0.334ohm

Some diode V->I curve


fllower is TL431 in all current range V-I curve


if you plug TL431 into socket B and E,and change the measure condition,you can see less current VI curve. The following figure , Y-axis is only 0~0.38mA


the Intelligent Curve Tracer is more powerful,It can measure 3 terminal voltage regulator’s Vi-Vo / Io->Vo Curve

[locky_z]

Actual circuit

[/b][/b]
 1.three channel power amplifiers


2.power supply and protect circuit


3.MCU & ADC & DAC & Control circuit


4.USB and RS232 interface circuits

[Mechatrommer]

ok... where to buy this stuff?

[amspire]

locky_z, that is a brilliant piece of work.

Richard

[nanofrog]

Nice! 

Would you be willing to post PCB layouts (or even the gerbers)?

[locky_z]

You can buy it from
http://www.aliexpress.com/product-fm/526060154-Intelligent-Curve-Tracer-wholesalers.html


Even if you have a PCB, but no MCU HEX file is no use.

[nanofrog]

Thanks. 

Shipping's awful though. 

[HLA-27b]

Nice work!

But the way you are selling it does not make much sense to be honest. Is it the prototype that you are selling or maybe you are selling them one by one from a small hand assembly run?

[Mechatrommer]

Even if you have a PCB, but no MCU HEX file is no use.

as expected. nanofrog should ask the hex as well , aliexpress? duh! make it to ebay... can? and make it cheap!

[Mechatrommer]

$159? i'll wait another day saw the teardown. there are some serious sh*t relays and power transistors over there, i cant imagine how much effort you've put into this thing (HW and SW) salute!

[locky_z]

I has been registered on ebay,but can‘t sell,
because ebay can't let me to 'go through an additional verification step' (???eBay??).
So I only sell in aliexpress, the aliexpress web automatic generation $101 ship fee unless you set free shipping.

But aliexpress and ebay is 'competitive relation'.So aliexpress can't use palpay after 2011.08.

[Mechatrommer]

But aliexpress and ebay is 'competitive relation'.So aliexpress can't use palpay after 2011.08.

true they are competetive. but both are customers to the eyes of paypal. there must be reason why paypal doesnt sell to aliexpress anymore.

[nanofrog]

nanofrog should ask the hex as well

I actually thought that the OP was going to make the project freely available after the first post rather than sell it in finished or kit form, given the lack of any links (presumed that the hex files would be provided with PCB artwork/gerbers BTW). How foolish of me...

[sorin]

But aliexpress and ebay is 'competitive relation'.So aliexpress can't use palpay after 2011.08.

true they are competetive. but both are customers to the eyes of paypal. there must be reason why paypal doesnt sell to aliexpress anymore.

of course
Ebay has bought paypal some years ago!!
Did you get it now??