What is Baritt diode?
Construction of Baritt diode:
Construction of Baritt diode |
Working of Baritt diode:
Working of Baritt diode |
V-I Characteristics of Baritt diode:
V-I characteristics of Baritt diode |
In
the V-I characteristics of Baritt diode, we can see the Vpt which is the punch
through voltages. It differs for both the directions and it can be controlled
during the manufacturing and construction process.
Voltage and current waveforms:
Voltage and current waveform |
When the voltage is
applied to the device, the potential drop happens in the reverse bias. When the
voltage is increased further till the end of the depletion region, the punch
through happens.
The depletion region is
free of charges and the punch through of the charge carriers happens here. After the
charge carriers are injected, it travels to the base with the saturation
velocity.
After the charge carriers
are injected, due to the positive resistance region of Baritt diode it results
in non ideal current waveform. The width of the terminal current depends on the
ON time or the transit time.
Advantages
- It works on thermionic emission so it produces very low noise.
Disadvantages
- When the frequency is increased, the efficiency decreases.
- It produces low power output.
- Bandwidth is very narrow.
Application of Baritt diode:
- It is used in Burglar alarms
- It is used as Oscillator
- It is used as small signal amplifier
0 Comments