Peak Current Class B Thyristor Commutation Solution

STEP 0: Pre-Calculation Summary
Formula Used
Peak Current = Input Voltage*sqrt(Thyristor Commutation Capacitance/Inductance)
Io = Vin*sqrt(Ccom/L)
This formula uses 1 Functions, 4 Variables
Functions Used
sqrt - A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number., sqrt(Number)
Variables Used
Peak Current - (Measured in Ampere) - Peak Current is the maximum amount of current by which output is capable of sourcing for brief periods of time.
Input Voltage - (Measured in Volt) - Input Voltage is defined as the voltage applied at the input terminal in a thyristor based circuit.
Thyristor Commutation Capacitance - (Measured in Farad) - Thyristor Commutation Capacitance refers to the capacitance present in a thyristor device that affects the commutation process.
Inductance - (Measured in Henry) - Inductance is the tendency of an electric conductor to oppose a change in the electric current flowing in a thyrsitor commutation circuit.
STEP 1: Convert Input(s) to Base Unit
Input Voltage: 45 Volt --> 45 Volt No Conversion Required
Thyristor Commutation Capacitance: 0.03 Farad --> 0.03 Farad No Conversion Required
Inductance: 0.46 Henry --> 0.46 Henry No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Io = Vin*sqrt(Ccom/L) --> 45*sqrt(0.03/0.46)
Evaluating ... ...
Io = 11.4919631652431
STEP 3: Convert Result to Output's Unit
11.4919631652431 Ampere --> No Conversion Required
FINAL ANSWER
11.4919631652431 11.49196 Ampere <-- Peak Current
(Calculation completed in 00.004 seconds)

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Created by Parminder Singh
Chandigarh University (CU), Punjab
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Peak Current Class B Thyristor Commutation Formula

​LaTeX ​Go
Peak Current = Input Voltage*sqrt(Thyristor Commutation Capacitance/Inductance)
Io = Vin*sqrt(Ccom/L)

Explain the working of Class B commutation?

At t=0, the main thyristor / SCR is gated and turned on. Load current equal to I0 starts flowing through the main thyristor T1 and Load. Now, we want to turn this thyristor off. To do this, we fire the auxiliary thyristor TA at t=t1. Till time t=t1, the capacitor is charged with source voltage Vs i.e. vc = Vs, capacitor current ic = 0 and current through main thyristor T1 i.e. i0 = I0.
The current through TA is zero at t=t2 and if it gets reversed biased after t=t2 then TA will get turned off. The voltage across TA equals the voltage across capacitor.
When the magnitude of ic reaches I0, the current through the SCR T1 will become zero. This can be seen at t=t3. Main thyristor T1 will turn off at t=t3 as the current through it is zero and it is reversed biased after this instant of time.

How to Calculate Peak Current Class B Thyristor Commutation?

Peak Current Class B Thyristor Commutation calculator uses Peak Current = Input Voltage*sqrt(Thyristor Commutation Capacitance/Inductance) to calculate the Peak Current, The Peak current Class B thyristor commutation formula is defined as the maximum magnitude of the current across a thyristor when it is undergoing the process of commutation. Peak Current is denoted by Io symbol.

How to calculate Peak Current Class B Thyristor Commutation using this online calculator? To use this online calculator for Peak Current Class B Thyristor Commutation, enter Input Voltage (Vin), Thyristor Commutation Capacitance (Ccom) & Inductance (L) and hit the calculate button. Here is how the Peak Current Class B Thyristor Commutation calculation can be explained with given input values -> 11.49196 = 45*sqrt(0.03/0.46).

FAQ

What is Peak Current Class B Thyristor Commutation?
The Peak current Class B thyristor commutation formula is defined as the maximum magnitude of the current across a thyristor when it is undergoing the process of commutation and is represented as Io = Vin*sqrt(Ccom/L) or Peak Current = Input Voltage*sqrt(Thyristor Commutation Capacitance/Inductance). Input Voltage is defined as the voltage applied at the input terminal in a thyristor based circuit, Thyristor Commutation Capacitance refers to the capacitance present in a thyristor device that affects the commutation process & Inductance is the tendency of an electric conductor to oppose a change in the electric current flowing in a thyrsitor commutation circuit.
How to calculate Peak Current Class B Thyristor Commutation?
The Peak current Class B thyristor commutation formula is defined as the maximum magnitude of the current across a thyristor when it is undergoing the process of commutation is calculated using Peak Current = Input Voltage*sqrt(Thyristor Commutation Capacitance/Inductance). To calculate Peak Current Class B Thyristor Commutation, you need Input Voltage (Vin), Thyristor Commutation Capacitance (Ccom) & Inductance (L). With our tool, you need to enter the respective value for Input Voltage, Thyristor Commutation Capacitance & Inductance and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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