UJT(UNIJUNCTION TRANSISTOR) is a three-lead electronic-semiconductor device with only one junction that exclusively as an eletrically controlled swtich andit is not used as a linear amplifier.
why ujt used as amplifier
voltageCurrent between the two bases of the UJT sets up a voltage gradient in the semiconductor. When the voltage on the emitter of the UJT rises high enough to forward bias the emitter-base junction at the voltage of the interbase gradient where the emitter is located, the UJT "turns on".
The bulk resistance between the two bases, which will be different for different types of UJT. Consult the datasheet for the value.
DPE?
The characteristics of a UJT are: stable triggering voltage, negative resistance, high pulse current capability and low value of triggering current.
why ujt used as amplifier
Explaine operation of UJT .
UJT is known as Uni Junction Transistor
by connecting the ujt with proper biasing resistors
For many people the letters UJT stand for Unitary Junction Transistor.
The On/OFF action in UJT is controlled by emitter current
voltageCurrent between the two bases of the UJT sets up a voltage gradient in the semiconductor. When the voltage on the emitter of the UJT rises high enough to forward bias the emitter-base junction at the voltage of the interbase gradient where the emitter is located, the UJT "turns on".
no
oscillator
The bulk resistance between the two bases, which will be different for different types of UJT. Consult the datasheet for the value.
DPE?
The characteristics of a UJT are: stable triggering voltage, negative resistance, high pulse current capability and low value of triggering current.