Mell What is difference between UJT and BJT?
UJT stands for unijunction transistor, while in BJT stands for bipolar junction transistor. UJT is only one junction is present in BJT, while in BJT consist of two junctions. UJT is also known as double-base diode as contains two bases while in BJT contain three-terminal namely emitter, base, and collector.
What is the difference between a FET and a MOSFET?
A FET works on the principle of a gate terminal changing the resistance between two other terminals (the source and drain) of the device based on a change in the field under the gate. A MOSFET is a metal oxide field effect transistor.
What is UJT application?
The most common application of a unijunction transistor is as a triggering device for SCR’s and Triacs but other UJT applications include sawtoothed generators, simple oscillators, phase control, and timing circuits. The simplest of all UJT circuits is the Relaxation Oscillator producing non-sinusoidal waveforms.
What is the symbol of UJT?
Unijunction transistor
| Type | active |
| Invented | General Electric (1953) |
| Pin configuration | B2, B1, emitter |
| Electronic symbol | |
|---|---|
| UJT N and P symbol |
What’s the difference between a BJT and a FET?
BJT and FET are electronic devices.The basic difference between BJT and FET is that bipolar junction transistor is the bipolar and current control device,while FET (field effect transistor) is the uni junction transistor.It is a voltage control device. 1:BJT (bipolar junction transistor ) is the bipolar device.
What’s the difference between UJT and n-channel FET?
The value of resistance is about 5 to 10 KOhm. UJT structure is similar to N-channel FET device. But the difference between UJT and FET is that P-Type Gate material is surrounded around N-type material.
What’s the difference between a BJT and an UJT?
What is the difference between a UJT and a BJT?. BJT is a current controlled device, where as UJT is a voltage controlled device. BJT’s are used as amplifiers or switches, as its main function is to amplify currrent, where as UJT acts as a switch.
What are the disadvantages of using a FET?
Following are the main disadvantages(demerits) of FETs. • FET has relatively small gain bandwidth product compare to BJT. • FET suffers from greater susceptibility to damage and hence requires careful handling.