Reverse Recovery Time Calculator

✖Reverse Recovery Charge is the charge required to get anode current zero or, recovering its ability to block negative voltage from developing a current in BJT.ⓘ Reverse Recovery Charge [Q_RR]			+10% -10%
✖Change in current refers to the variation in the flow of electrical charge carriers, usually electrons or electron-deficient atoms in a transistor device.ⓘ Change in Current [ΔI]			+10% -10%

✖Reverse Recovery Time is the amount of time the current flows in the reverse direction when the forward current simultaneously switches directions due to residual stored charge in BJT.ⓘ Reverse Recovery Time [t_rr]

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Reverse Recovery Time Solution

STEP 0: Pre-Calculation Summary

Formula Used

Reverse Recovery Time = sqrt(2*Reverse Recovery Charge/Change in Current)
t_rr = sqrt(2*Q_RR/ΔI)
This formula uses 1 Functions, 3 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

Reverse Recovery Time - (Measured in Second) - Reverse Recovery Time is the amount of time the current flows in the reverse direction when the forward current simultaneously switches directions due to residual stored charge in BJT.
Reverse Recovery Charge - (Measured in Coulomb) - Reverse Recovery Charge is the charge required to get anode current zero or, recovering its ability to block negative voltage from developing a current in BJT.
Change in Current - (Measured in Ampere) - Change in current refers to the variation in the flow of electrical charge carriers, usually electrons or electron-deficient atoms in a transistor device.

STEP 1: Convert Input(s) to Base Unit

Reverse Recovery Charge: 0.04 Coulomb --> 0.04 Coulomb No Conversion Required
Change in Current: 15.32 Milliampere --> 0.01532 Ampere (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

t_rr = sqrt(2*Q_RR/ΔI) --> sqrt(2*0.04/0.01532)

Evaluating ... ...

t_rr = 2.28515472449515

STEP 3: Convert Result to Output's Unit

2.28515472449515 Second --> No Conversion Required

FINAL ANSWER

2.28515472449515 ≈ 2.285155 Second <-- Reverse Recovery Time

(Calculation completed in 00.020 seconds)

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Credits

Created by Parminder Singh

Chandigarh University (CU), Punjab

Parminder Singh has created this Calculator and 100+ more calculators!

Verified by Rachita C

BMS College Of Engineering (BMSCE), Banglore

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< BJT Calculators

Reverse Recovery Current

LaTeX Go Reverse Recovery Current = sqrt(2*Reverse Recovery Charge*Change in Current)

Reverse Recovery Time

LaTeX Go Reverse Recovery Time = sqrt(2*Reverse Recovery Charge/Change in Current)

Reverse Recovery Charge

LaTeX Go Reverse Recovery Charge = 0.5*Reverse Recovery Current*Reverse Recovery Time

Softness Factor

LaTeX Go Softness Factor = Reverse Current Decay Time/Forward Current Decay Time

Reverse Recovery Time Formula

LaTeX Go

Reverse Recovery Time = sqrt(2*Reverse Recovery Charge/Change in Current)
t_rr = sqrt(2*Q_RR/ΔI)

Why is reverse recovery time needed in diodes?

The reverse recovery time is the time needed by diode to allow it to be capable enough to block large negative voltage and to increase the width of depletion region.

How to Calculate Reverse Recovery Time?

Reverse Recovery Time calculator uses Reverse Recovery Time = sqrt(2*Reverse Recovery Charge/Change in Current) to calculate the Reverse Recovery Time, The Reverse Recovery Time is the time required by the diode to sweep out the excess charge carrier from the drift region. Reverse Recovery Time is denoted by t_rr symbol.

How to calculate Reverse Recovery Time using this online calculator? To use this online calculator for Reverse Recovery Time, enter Reverse Recovery Charge (Q_RR) & Change in Current (ΔI) and hit the calculate button. Here is how the Reverse Recovery Time calculation can be explained with given input values -> 2.285155 = sqrt(2*0.04/0.01532).

FAQ

What is Reverse Recovery Time?

The Reverse Recovery Time is the time required by the diode to sweep out the excess charge carrier from the drift region and is represented as t_rr = sqrt(2*Q_RR/ΔI) or Reverse Recovery Time = sqrt(2*Reverse Recovery Charge/Change in Current). Reverse Recovery Charge is the charge required to get anode current zero or, recovering its ability to block negative voltage from developing a current in BJT & Change in current refers to the variation in the flow of electrical charge carriers, usually electrons or electron-deficient atoms in a transistor device.

How to calculate Reverse Recovery Time?

The Reverse Recovery Time is the time required by the diode to sweep out the excess charge carrier from the drift region is calculated using Reverse Recovery Time = sqrt(2*Reverse Recovery Charge/Change in Current). To calculate Reverse Recovery Time, you need Reverse Recovery Charge (Q_RR) & Change in Current (ΔI). With our tool, you need to enter the respective value for Reverse Recovery Charge & Change in Current 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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