FormulaDen.com

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

Emitter Current for UJT based Thyristor Firing Circuit Formula

Fx Copy

LaTeX Copy

Emitter current is the amplified output current of a thyrsitor based circuit. Check FAQs

I E = \frac{V E - V d}{R B1 + R E}

I_E - Emitter Current?V_E - Emitter Voltage?V_d - Diode Voltage?R_B1 - Emitter Resistance Base 1?R_E - Emitter Resistance?

Emitter Current for UJT based Thyristor Firing Circuit Example

With values

With units

Only example

Here is how the Emitter Current for UJT based Thyristor Firing Circuit equation looks like with Values.

Here is how the Emitter Current for UJT based Thyristor Firing Circuit equation looks like with Units.

Here is how the Emitter Current for UJT based Thyristor Firing Circuit equation looks like.

1.3333 = \frac{60 - 20}{18 + 12}

1.3333A = \frac{60V - 20V}{18Ω + 12Ω}

1.3333 = \frac{60 - 20}{18 + 12}

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 Emitter Current for UJT based Thyristor Firing Circuit

Emitter Current for UJT based Thyristor Firing Circuit Solution

Follow our step by step solution on how to calculate Emitter Current for UJT based Thyristor Firing Circuit?

FIRST Step Consider the formula

I E = \frac{V E - V d}{R B1 + R E}

Next Step Substitute values of Variables

∴

I E = \frac{60V - 20V}{18Ω + 12Ω}

Next Step Prepare to Evaluate

∴

I E = \frac{60 - 20}{18 + 12}

Next Step Evaluate

∴

I E = 1.33333333333333A

LAST Step Rounding Answer

∴

I E = 1.3333A

Emitter Current for UJT based Thyristor Firing Circuit Formula Elements

Variables

Emitter Current

Emitter current is the amplified output current of a thyrsitor based circuit.

Symbol: I_E

Measurement: Electric CurrentUnit: A

Note: Value can be positive or negative.

Formulas to find Emitter Current

Emitter Voltage

Emitter Voltage is defined as the voltage across the emitter terminal of any transistor device.

Symbol: V_E

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Emitter Voltage

Diode Voltage

Diode voltage is defined as the voltage developed across diode when it is in on state in a thyristor based circuit.

Symbol: V_d

Measurement: Electric PotentialUnit: V

Note: Value should be greater than 0.

Formulas to find Diode Voltage

Emitter Resistance Base 1

Emitter resistance base 1 is the resistance offered to the current flowing through the base 1 junction on UJT.

Symbol: R_B1

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Emitter Resistance Base 1

Emitter Resistance

Emitter Resistance is a dynamic resistance of the emitter-base junction diode of any thyristor based firing circuit.

Symbol: R_E

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Emitter Resistance

Other formulas in SCR Firing Circuit category

Go Derating Factor of Series Connected Thyristor String

DRF = 1 - \frac{V string}{V ss \cdot n}

Go Leakage Current of Collector-Base Junction

I CBO = I C - α \cdot I C

Go Power Dissipated by Heat in SCR

P dis = \frac{T junc - T amb}{θ}

Go Thermal Resistance of SCR

θ = \frac{T junc - T amb}{P dis}

How to Evaluate Emitter Current for UJT based Thyristor Firing Circuit?

Emitter Current for UJT based Thyristor Firing Circuit evaluator uses Emitter Current = (Emitter Voltage-Diode Voltage)/(Emitter Resistance Base 1+Emitter Resistance) to evaluate the Emitter Current, The Emitter current for UJT based Thyristor firing circuit formula is defined as the magnitude of the current that flows through the emitter when it is in conducting mode. Emitter Current is denoted by I_E symbol.

How to evaluate Emitter Current for UJT based Thyristor Firing Circuit using this online evaluator? To use this online evaluator for Emitter Current for UJT based Thyristor Firing Circuit, enter Emitter Voltage (V_E), Diode Voltage (V_d), Emitter Resistance Base 1 (R_B1) & Emitter Resistance (R_E) and hit the calculate button.

FAQs on Emitter Current for UJT based Thyristor Firing Circuit

What is the formula to find Emitter Current for UJT based Thyristor Firing Circuit?

The formula of Emitter Current for UJT based Thyristor Firing Circuit is expressed as Emitter Current = (Emitter Voltage-Diode Voltage)/(Emitter Resistance Base 1+Emitter Resistance). Here is an example- 1.333333 = (60-20)/(18+12).

How to calculate Emitter Current for UJT based Thyristor Firing Circuit?

With Emitter Voltage (V_E), Diode Voltage (V_d), Emitter Resistance Base 1 (R_B1) & Emitter Resistance (R_E) we can find Emitter Current for UJT based Thyristor Firing Circuit using the formula - Emitter Current = (Emitter Voltage-Diode Voltage)/(Emitter Resistance Base 1+Emitter Resistance).

Can the Emitter Current for UJT based Thyristor Firing Circuit be negative?

Yes, the Emitter Current for UJT based Thyristor Firing Circuit, measured in Electric Current can be negative.

Which unit is used to measure Emitter Current for UJT based Thyristor Firing Circuit?

Emitter Current for UJT based Thyristor Firing Circuit is usually measured using the Ampere[A] for Electric Current. Milliampere[A], Microampere[A], Centiampere[A] are the few other units in which Emitter Current for UJT based Thyristor Firing Circuit can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit

Emitter Current for UJT based Thyristor Firing Circuit Formula

Emitter Current for UJT based Thyristor Firing Circuit Example

Emitter Current for UJT based Thyristor Firing Circuit Solution

Emitter Current for UJT based Thyristor Firing Circuit Formula Elements

Other formulas in SCR Firing Circuit category

How to Evaluate Emitter Current for UJT based Thyristor Firing Circuit?

FAQs on Emitter Current for UJT based Thyristor Firing Circuit

Variable Name