Circuit Turn Off Time for Main SCR in Chopper Solution

STEP 0: Pre-Calculation Summary
Formula Used
Circuit Turn Off Time = 1/Resonant Frequency*(pi-2*Commutation Angle)
Tc = 1/ωo*(pi-2*θ1)
This formula uses 1 Constants, 3 Variables
Constants Used
pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288
Variables Used
Circuit Turn Off Time - (Measured in Second) - Circuit Turn Off Time is defined as duration taken for the chopper to turn off or open its switching elements (usually thyristors or SCRs) once the decision is made to interrupt the current flow.
Resonant Frequency - (Measured in Radian per Second) - Resonant Frequency at which the impedance of a circuit is purely resistive.
Commutation Angle - (Measured in Radian) - The commutation angle (θ) is the phase angle at which a device like a thyristor is intentionally turned off in an AC waveform to control current flow.
STEP 1: Convert Input(s) to Base Unit
Resonant Frequency: 7.67 Radian per Second --> 7.67 Radian per Second No Conversion Required
Commutation Angle: 0.8 Degree --> 0.013962634015952 Radian (Check conversion ​here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Tc = 1/ωo*(pi-2*θ1) --> 1/7.67*(pi-2*0.013962634015952)
Evaluating ... ...
Tc = 0.405954026800246
STEP 3: Convert Result to Output's Unit
0.405954026800246 Second --> No Conversion Required
0.405954026800246 0.405954 Second <-- Circuit Turn Off Time
(Calculation completed in 00.004 seconds)
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Credits

Created by Pratik Kumar Singh
Vellore Institute of Technology (VIT), Vellore
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GURU TEGH BAHADUR INSTITUTE OF TECHNOLOGY (GTBIT), NEW DELHI
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<Commutated Chopper Calculators

Average Value of Output Voltage using Chopping Period
​ Go Average Output Voltage = Input Voltage*(Chopper On Time-Circuit Turn Off Time)/Chopping Period
Peak Diode Current of Voltage Commutated Chopper
​ Go Peak Diode Current = Source Voltage*sqrt(Capacitance/Inductance)
Total Commutation Interval in Load Commutated Chopper
​ Go Total Commutation Interval = (2*Capacitance*Source Voltage)/Output Current
Circuit Turn Off Time for Main SCR in Chopper
​ Go Circuit Turn Off Time = 1/Resonant Frequency*(pi-2*Commutation Angle)

Circuit Turn Off Time for Main SCR in Chopper Formula

Circuit Turn Off Time = 1/Resonant Frequency*(pi-2*Commutation Angle)
Tc = 1/ωo*(pi-2*θ1)

What is the significance of the circuit turn-off time for the main SCR in a chopper circuit?

The circuit turn-off time for the main SCR in a chopper circuit is crucial as it directly impacts circuit efficiency and performance. A shorter turn-off time minimizes switching losses, reduces heat generation, and allows for faster response to control signals. This leads to improved energy conversion efficiency and precise control of the chopper, making it essential for applications like motor control, power regulation, and energy management where efficiency and accuracy are paramount.

How to Calculate Circuit Turn Off Time for Main SCR in Chopper?

Circuit Turn Off Time for Main SCR in Chopper calculator uses Circuit Turn Off Time = 1/Resonant Frequency*(pi-2*Commutation Angle) to calculate the Circuit Turn Off Time, The Circuit Turn Off Time for Main SCR in Chopper formula is defined as the duration it takes for the SCR to switch from its conducting state to its non-conducting state. Circuit Turn Off Time is denoted by Tc symbol.

How to calculate Circuit Turn Off Time for Main SCR in Chopper using this online calculator? To use this online calculator for Circuit Turn Off Time for Main SCR in Chopper, enter Resonant Frequency o) & Commutation Angle 1) and hit the calculate button. Here is how the Circuit Turn Off Time for Main SCR in Chopper calculation can be explained with given input values -> 0.194604 = 1/7.67*(pi-2*0.013962634015952).

FAQ

What is Circuit Turn Off Time for Main SCR in Chopper?
The Circuit Turn Off Time for Main SCR in Chopper formula is defined as the duration it takes for the SCR to switch from its conducting state to its non-conducting state and is represented as Tc = 1/ωo*(pi-2*θ1) or Circuit Turn Off Time = 1/Resonant Frequency*(pi-2*Commutation Angle). Resonant Frequency at which the impedance of a circuit is purely resistive & The commutation angle (θ) is the phase angle at which a device like a thyristor is intentionally turned off in an AC waveform to control current flow.
How to calculate Circuit Turn Off Time for Main SCR in Chopper?
The Circuit Turn Off Time for Main SCR in Chopper formula is defined as the duration it takes for the SCR to switch from its conducting state to its non-conducting state is calculated using Circuit Turn Off Time = 1/Resonant Frequency*(pi-2*Commutation Angle). To calculate Circuit Turn Off Time for Main SCR in Chopper, you need Resonant Frequency o) & Commutation Angle 1). With our tool, you need to enter the respective value for Resonant Frequency & Commutation Angle 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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