Reverse Recovery Current 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 Current is required by a power diode when it is quickly reverse biased and this current is required to clear it of charge carriers so that it can block the reverse voltage in BJT.ⓘ Reverse Recovery Current [I_RR]

⎘ Copy

👎

Formula

✖

Reverse Recovery Current

Formula

`"I"_{"RR"} = sqrt(2*"Q"_{"RR"}*"ΔI")`

Example

`"35.00857mA"=sqrt(2*"0.04C"*"15.32mA")`

Calculator

LaTeX

Reset

👍

Download Basic Transistor Devices Formulas PDF

Reverse Recovery Current Solution

STEP 0: Pre-Calculation Summary

Formula Used

Reverse Recovery Current = sqrt(2*Reverse Recovery Charge*Change in Current)
I_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 Current - (Measured in Ampere) - Reverse Recovery Current is required by a power diode when it is quickly reverse biased and this current is required to clear it of charge carriers so that it can block the reverse voltage 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

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

Evaluating ... ...

I_RR = 0.0350085703792657

STEP 3: Convert Result to Output's Unit

0.0350085703792657 Ampere -->35.0085703792657 Milliampere (Check conversion here)

FINAL ANSWER

35.0085703792657 ≈ 35.00857 Milliampere <-- Reverse Recovery Current

(Calculation completed in 00.020 seconds)

You are here -

Home » Engineering » Electrical » Power Electronics » Basic Transistor Devices » BJT » Reverse Recovery Current

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

Rachita C has verified this Calculator and 50+ more calculators!

< 7 BJT Calculators

Reverse Recovery Current

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

Reverse Recovery Time

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

Reverse Recovery Charge

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

Softness Factor

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

Power Loss in BJT

Go Average Power Loss = Energy Loss*Switching Frequency

BJT Turn OFF Time

Go Turn OFF Time = Storage Time+Fall Time

BJT Turn ON Time

Go Turn ON Time = Rise Time+Delay Time

Reverse Recovery Current Formula

Reverse Recovery Current = sqrt(2*Reverse Recovery Charge*Change in Current)
I_RR = sqrt(2*Q_RR*ΔI)

When does reverse recovery current flows in a diode?

Reverse recovery current flow in a diode during the turn-off period of the diode. It is needed in order to remove the charge carrier from the drift region so that the diode do not start conduction form small forward voltages.

How to Calculate Reverse Recovery Current?

Reverse Recovery Current calculator uses Reverse Recovery Current = sqrt(2*Reverse Recovery Charge*Change in Current) to calculate the Reverse Recovery Current, The Reverse Recovery Current is defined as the amount of current required by the diode to remove the excess charge carriers from the drift region of the diode. Reverse Recovery Current is denoted by I_RR symbol.

How to calculate Reverse Recovery Current using this online calculator? To use this online calculator for Reverse Recovery Current, enter Reverse Recovery Charge (Q_RR) & Change in Current (ΔI) and hit the calculate button. Here is how the Reverse Recovery Current calculation can be explained with given input values -> 35008.57 = sqrt(2*0.04*0.01532).

FAQ

What is Reverse Recovery Current?

The Reverse Recovery Current is defined as the amount of current required by the diode to remove the excess charge carriers from the drift region of the diode and is represented as I_RR = sqrt(2*Q_RR*ΔI) or Reverse Recovery Current = 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 Current?

The Reverse Recovery Current is defined as the amount of current required by the diode to remove the excess charge carriers from the drift region of the diode is calculated using Reverse Recovery Current = sqrt(2*Reverse Recovery Charge*Change in Current). To calculate Reverse Recovery Current, 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.

Home

FREE PDFs

🔍 Search