unkarc said:Hi,
You can read the difference at this link:
h**p://www.macom.com/Application%20Notes/pdf/an211arev0.pdf
Also a useful link on JFETs is here:
h**p://www.colorado.edu/physics/phys3330/phys3330_fa04/pdfdocs/AN101FETintro.pdf
Regarding your earlier question on the pinchoff voltage, I attached a simple schematics on how to measure this pinchoff voltage in practice.
You need a DC power supply (or 9V dry battery or 12V battery etc) and a DVM besides the JFET. Usually a digital voltmeter has got a 10 MOhm internal resistance which surely blocks any current flowing through the Drain Source channel and you can directly read the Vp of your JFET from the DVM (use 10 or 20V measuring range).
You may use this same circuit to measure IDss of this same JFET (max drain current at zero gate source voltage) by arranging the DVM to measure DC current (switch off power supply while unplug/plug the test wires on the DVM).
rgds
unkarc
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?