FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Critical Inductance Formula

Fx Copy

LaTeX Copy

Inductance is the tendency of an electric conductor to oppose a change in the electric current flowing through it. Check FAQs

L = {V L}^{2} \cdot (\frac{V s - V L}{2 \cdot f c \cdot V s \cdot P L})

L - Inductance?V_L - Load Voltage?V_s - Source Voltage?f_c - Chopping Frequency?P_L - Load Power?

Critical Inductance Example

With values

With units

Only example

Here is how the Critical Inductance equation looks like with Values.

Here is how the Critical Inductance equation looks like with Units.

Here is how the Critical Inductance equation looks like.

60.6061 = 20^{2} \cdot (\frac{100 - 20}{2 \cdot 0.44 \cdot 100 \cdot 6})

60.6061H = {20V}^{2} \cdot (\frac{100V - 20V}{2 \cdot 0.44Hz \cdot 100V \cdot 6W})

60.6061 = 20^{2} \cdot (\frac{100 - 20}{2 \cdot 0.44 \cdot 100 \cdot 6})

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Engineering » Category

Electrical » Category

Power Electronics » fx Critical Inductance

Critical Inductance Solution

Follow our step by step solution on how to calculate Critical Inductance?

FIRST Step Consider the formula

L = {V L}^{2} \cdot (\frac{V s - V L}{2 \cdot f c \cdot V s \cdot P L})

Next Step Substitute values of Variables

∴

L = {20V}^{2} \cdot (\frac{100V - 20V}{2 \cdot 0.44Hz \cdot 100V \cdot 6W})

Next Step Prepare to Evaluate

∴

L = 20^{2} \cdot (\frac{100 - 20}{2 \cdot 0.44 \cdot 100 \cdot 6})

Next Step Evaluate

∴

L = 60.6060606060606H

LAST Step Rounding Answer

∴

L = 60.6061H

Critical Inductance Formula Elements

Variables

Inductance

Inductance is the tendency of an electric conductor to oppose a change in the electric current flowing through it.

Symbol: L

Measurement: InductanceUnit: H

Note: Value should be greater than 0.

Formulas to find Inductance

Load Voltage

Load Voltage is defined as the magnitude of voltage over a complete cycle in load connected to the chopper.

Symbol: V_L

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Load Voltage

Source Voltage

Source voltage is defined as the voltage or potential difference of the source which is supplying voltage to the chopper.

Symbol: V_s

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Source Voltage

Chopping Frequency

Chopping frequency refers to the rate at which a signal is turned on and off, or modulated, in a switching circuit. A higher chopping frequency can improve accuracy and reduce noise.

Symbol: f_c

Measurement: FrequencyUnit: Hz

Note: Value should be greater than 0.

Formulas to find Chopping Frequency

Load Power

Load power is the load side power.

Symbol: P_L

Measurement: PowerUnit: W

Note: Value can be positive or negative.

Formulas to find Load Power

Other formulas in Chopper Core Factors category

Go Excess Work Due to Thyristor 1 in Chopper Circuit

W = 0.5 \cdot L m \cdot ((I out + \frac{t rr \cdot V c}{L m}) - {I out}^{2})

Go Duty Cycle

d = \frac{T on}{T}

Go Ripple Factor of DC Chopper

RF = \sqrt{(\frac{1}{d}) - d}

Go Effective Input Resistance

R in = \frac{R}{d}

How to Evaluate Critical Inductance?

Critical Inductance evaluator uses Inductance = Load Voltage^2*((Source Voltage-Load Voltage)/(2*Chopping Frequency*Source Voltage*Load Power)) to evaluate the Inductance, The Critical Inductance L is the inductance value by which the output current falls to zero at t = T during turn OFF period of chopper. Inductance is denoted by L symbol.

How to evaluate Critical Inductance using this online evaluator? To use this online evaluator for Critical Inductance, enter Load Voltage (V_L), Source Voltage (V_s), Chopping Frequency (f_c) & Load Power (P_L) and hit the calculate button.

FAQs on Critical Inductance

What is the formula to find Critical Inductance?

The formula of Critical Inductance is expressed as Inductance = Load Voltage^2*((Source Voltage-Load Voltage)/(2*Chopping Frequency*Source Voltage*Load Power)). Here is an example- 60.60606 = 20^2*((100-20)/(2*0.44*100*6)).

How to calculate Critical Inductance?

With Load Voltage (V_L), Source Voltage (V_s), Chopping Frequency (f_c) & Load Power (P_L) we can find Critical Inductance using the formula - Inductance = Load Voltage^2*((Source Voltage-Load Voltage)/(2*Chopping Frequency*Source Voltage*Load Power)).

Can the Critical Inductance be negative?

No, the Critical Inductance, measured in Inductance cannot be negative.

Which unit is used to measure Critical Inductance?

Critical Inductance is usually measured using the Henry[H] for Inductance. Millihenry[H], Microhenry[H] are the few other units in which Critical Inductance can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Critical Inductance Formula

Critical Inductance Example

Critical Inductance Solution

Critical Inductance Formula Elements

Other formulas in Chopper Core Factors category

How to Evaluate Critical Inductance?

FAQs on Critical Inductance

Variable Name