• High Input Impedance Amplifier.
• Low-Noise Amplifier.
• Differential Amplifier.
• Constant Current Source.
• Analog Switch or Gate.
• Voltage Controlled Resistor.
• JFET as a Switch
• JFET as a Chopper
• JFET as a Current source
• JFET as a Amplifier
• JFET as a Buffer
A Jfet works by applying voltage to the drain of the jfet. A jfet will then conduct across from drain to source.
JFET is a unijunction transistor.
No, jfet works only in depletion mode.
1-BJT is bipolar while JFET is unipolar. 2-BJT has low input impedence while JFET has high input impedence. 3-JFET has low power discipation as compared to BJT. 4-JFET has low noise as compared to BJT. 5-BJT is current controlled while JFET is voltage controlled. 6-JFET is mostly used in digital circuits.
no
It depends on the topology of the circuit in which the JFET is operating.
active region.
forward bias
its a n channel jfet(field effect transistor) manufactured by Motorola
The Junction Field Effect Transistor (JFET)exhibits characteristics which often make it more suited to a particular application than the bipolar transistor. Some of these applications are: - High Input Impedance Amplifier - Low-Noise Amplifier - Differential Amplifier - Constant Current Source - Analogue Switch or Gate - Voltage Controlled Resistor
channel
If you mean JFET, it is because the gate junction is reverse biased.