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Firing angle of UJT as an oscillator Thyristor firing circuit Solution

STEP 0: Pre-Calculation Summary
Formula Used
Firing Angle = Angular frequency in radians/sec*((Resistance*Capacitance)*ln(1/(1-Intrinsic stand-off ratio UJT as Oscillator)))
α = w*((R*C)*ln(1/(1-η)))
This formula uses 1 Functions, 4 Variables
Functions Used
ln - Natural logarithm function (base e), ln(Number)
Variables Used
Angular frequency in radians/sec - Angular frequency in radians/sec is used calculating the angular frequency by using pi as 3.14. (Measured in Radian per Second)
Resistance - Resistance is a measure of the opposition to current flow in an electrical circuit. Its S.I unit is ohm. (Measured in Ohm)
Capacitance - Capacitance is the ratio of the amount of electric charge stored on a conductor to a difference in electric potential. (Measured in Farad)
Intrinsic stand-off ratio UJT as Oscillator- Intrinsic stand-off ratio UJT as Oscillator is defined as the ratio of emitter base 1 resistance to the total emitter base junctions resistances.
STEP 1: Convert Input(s) to Base Unit
Angular frequency in radians/sec: 10 Radian per Second --> 10 Radian per Second No Conversion Required
Resistance: 10 Ohm --> 10 Ohm No Conversion Required
Capacitance: 3 Farad --> 3 Farad No Conversion Required
Intrinsic stand-off ratio UJT as Oscillator: 0.5 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
α = w*((R*C)*ln(1/(1-η))) --> 10*((10*3)*ln(1/(1-0.5)))
Evaluating ... ...
α = 207.944154167984
STEP 3: Convert Result to Output's Unit
207.944154167984 Radian -->11914.3224082454 Degree (Check conversion here)
FINAL ANSWER
11914.3224082454 Degree <-- Firing Angle
(Calculation completed in 00.016 seconds)

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Firing angle of UJT as an oscillator Thyristor firing circuit Formula

Firing Angle = Angular frequency in radians/sec*((Resistance*Capacitance)*ln(1/(1-Intrinsic stand-off ratio UJT as Oscillator)))
α = w*((R*C)*ln(1/(1-η)))

Applications of UJT.

An UJT or Unijunction Transistor find many applications just in the domain of power electronics and some of them are :
Relaxation oscillators.
Switching Thyristors like SCR, TRIAC etc.
Magnetic flux sensors.
Voltage or current limiting circuit.
Bistable oscillators.
Voltage or current regulators.
Phase control circuits.

How to Calculate Firing angle of UJT as an oscillator Thyristor firing circuit?

Firing angle of UJT as an oscillator Thyristor firing circuit calculator uses Firing Angle = Angular frequency in radians/sec*((Resistance*Capacitance)*ln(1/(1-Intrinsic stand-off ratio UJT as Oscillator))) to calculate the Firing Angle, The Firing angle of UJT as an oscillator Thyristor firing circuit formula is defined as as the angle at which the injection of voltage at gate terminal of thyristor causes it to starts conducting. Firing Angle is denoted by α symbol.

How to calculate Firing angle of UJT as an oscillator Thyristor firing circuit using this online calculator? To use this online calculator for Firing angle of UJT as an oscillator Thyristor firing circuit, enter Angular frequency in radians/sec (w), Resistance (R), Capacitance (C) & Intrinsic stand-off ratio UJT as Oscillator (η) and hit the calculate button. Here is how the Firing angle of UJT as an oscillator Thyristor firing circuit calculation can be explained with given input values -> 11914.32 = 10*((10*3)*ln(1/(1-0.5))).

FAQ

What is Firing angle of UJT as an oscillator Thyristor firing circuit?
The Firing angle of UJT as an oscillator Thyristor firing circuit formula is defined as as the angle at which the injection of voltage at gate terminal of thyristor causes it to starts conducting and is represented as α = w*((R*C)*ln(1/(1-η))) or Firing Angle = Angular frequency in radians/sec*((Resistance*Capacitance)*ln(1/(1-Intrinsic stand-off ratio UJT as Oscillator))). Angular frequency in radians/sec is used calculating the angular frequency by using pi as 3.14, Resistance is a measure of the opposition to current flow in an electrical circuit. Its S.I unit is ohm, Capacitance is the ratio of the amount of electric charge stored on a conductor to a difference in electric potential & Intrinsic stand-off ratio UJT as Oscillator is defined as the ratio of emitter base 1 resistance to the total emitter base junctions resistances.
How to calculate Firing angle of UJT as an oscillator Thyristor firing circuit?
The Firing angle of UJT as an oscillator Thyristor firing circuit formula is defined as as the angle at which the injection of voltage at gate terminal of thyristor causes it to starts conducting is calculated using Firing Angle = Angular frequency in radians/sec*((Resistance*Capacitance)*ln(1/(1-Intrinsic stand-off ratio UJT as Oscillator))). To calculate Firing angle of UJT as an oscillator Thyristor firing circuit, you need Angular frequency in radians/sec (w), Resistance (R), Capacitance (C) & Intrinsic stand-off ratio UJT as Oscillator (η). With our tool, you need to enter the respective value for Angular frequency in radians/sec, Resistance, Capacitance & Intrinsic stand-off ratio UJT as Oscillator and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Firing Angle?
In this formula, Firing Angle uses Angular frequency in radians/sec, Resistance, Capacitance & Intrinsic stand-off ratio UJT as Oscillator. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Firing Angle = asin(Gate threshold voltage*((Resistance+Stabilizing Resistance+Variable Resistance)/(Maximum AC input voltage*Stabilizing Resistance)))
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