FormulaDen.com

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

Output Resistance of Emitter-Degenerated CE Amplifier Formula

GoOutput Resistance at Another Drain of Controlled Source Transistor Formula

GoOutput Resistance of CS Amplifier with Source Resistance Formula

Fx Copy

LaTeX Copy

Drain resistance is the ratio of change in drain to source voltage to corresponding change in drain current for a constant gate to source voltage. Check FAQs

R d = R out + (g mp \cdot R out) \cdot (\frac{1}{R e} + \frac{1}{R sm})

R_d - Drain Resistance?R_out - Finite Output Resistance?g_mp - MOSFET Primary Transconductance?R_e - Emitter Resistance?R_sm - Small Signal Input Resistance?

Output Resistance of Emitter-Degenerated CE Amplifier Example

With values

With units

Only example

Here is how the Output Resistance of Emitter-Degenerated CE Amplifier equation looks like with Values.

Here is how the Output Resistance of Emitter-Degenerated CE Amplifier equation looks like with Units.

Here is how the Output Resistance of Emitter-Degenerated CE Amplifier equation looks like.

0.3501 = 0.35 + (19.77 \cdot 0.35) \cdot (\frac{1}{0.067} + \frac{1}{1.45})

0.3501kΩ = 0.35kΩ + (19.77mS \cdot 0.35kΩ) \cdot (\frac{1}{0.067kΩ} + \frac{1}{1.45kΩ})

0.3501 = 0.35 + (19.77 \cdot 0.35) \cdot (\frac{1}{0.067} + \frac{1}{1.45})

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Engineering » Category

Electronics » Category

Amplifiers » fx Output Resistance of Emitter-Degenerated CE Amplifier

Output Resistance of Emitter-Degenerated CE Amplifier Solution

Follow our step by step solution on how to calculate Output Resistance of Emitter-Degenerated CE Amplifier?

FIRST Step Consider the formula

R d = R out + (g mp \cdot R out) \cdot (\frac{1}{R e} + \frac{1}{R sm})

Next Step Substitute values of Variables

∴

R d = 0.35kΩ + (19.77mS \cdot 0.35kΩ) \cdot (\frac{1}{0.067kΩ} + \frac{1}{1.45kΩ})

Next Step Convert Units

∴

R d = 350Ω + (0.0198S \cdot 350Ω) \cdot (\frac{1}{67Ω} + \frac{1}{1450Ω})

Next Step Prepare to Evaluate

∴

R d = 350 + (0.0198 \cdot 350) \cdot (\frac{1}{67} + \frac{1}{1450})

Next Step Evaluate

∴

R d = 350.108048188369Ω

Next Step Convert to Output's Unit

∴

R d = 0.350108048188368kΩ

LAST Step Rounding Answer

∴

R d = 0.3501kΩ

Output Resistance of Emitter-Degenerated CE Amplifier Formula Elements

Variables

Drain Resistance

Drain resistance is the ratio of change in drain to source voltage to corresponding change in drain current for a constant gate to source voltage.

Symbol: R_d

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Drain Resistance

Finite Output Resistance

The finite output resistance is a measure of how much the transistor's output impedance varies with changes in the output voltage.

Symbol: R_out

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Finite Output Resistance

MOSFET Primary Transconductance

MOSFET Primary Transconductance is the change in the drain current divided by the small change in the gate/source voltage with a constant drain/source voltage.

Symbol: g_mp

Measurement: TransconductanceUnit: mS

Note: Value should be greater than 0.

Formulas to find MOSFET Primary Transconductance

Emitter Resistance

Emitter Resistance is a dynamic resistance of the emitter-base junction diode of a transistor.

Symbol: R_e

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Emitter Resistance

Small Signal Input Resistance

Small signal input resistance 2 between Base and emitter models how the input impedance between the base and emitter terminals of the transistor changes when a small AC signal is applied.

Symbol: R_sm

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Small Signal Input Resistance

Other Formulas to find Drain Resistance

Go Output Resistance at Another Drain of Controlled Source Transistor

R d = R 2 + 2 \cdot R fi + 2 \cdot R fi \cdot g mp \cdot R 2

Go Output Resistance of CS Amplifier with Source Resistance

R d = R out + R so + (g mp \cdot R out \cdot R so)

Other formulas in Common Emitter Amplifier category

Go Emitter Current of Common-Base Amplifier

i e = \frac{V in}{R e}

Go Fundamental Voltage in Common-Emitter Amplifier

V fc = R in \cdot i b

Go Input Impedance of Common-Base Amplifier

Z in = {(\frac{1}{R e} + \frac{1}{R sm})}^{- 1}

Go Input Resistance of Common Emitter Amplifier

R in = {(\frac{1}{R b} + \frac{1}{R b2} + \frac{1}{R sm})}^{- 1}

How to Evaluate Output Resistance of Emitter-Degenerated CE Amplifier?

Output Resistance of Emitter-Degenerated CE Amplifier evaluator uses Drain Resistance = Finite Output Resistance+(MOSFET Primary Transconductance*Finite Output Resistance)*(1/Emitter Resistance+1/Small Signal Input Resistance) to evaluate the Drain Resistance, The Output Resistance of Emitter-Degenerated CE Amplifier of electrical network is measure of opposition to current flow (impedance), both static (resistance) and dynamic (reactance), into load network being connected that is internal to electrical source. Drain Resistance is denoted by R_d symbol.

How to evaluate Output Resistance of Emitter-Degenerated CE Amplifier using this online evaluator? To use this online evaluator for Output Resistance of Emitter-Degenerated CE Amplifier, enter Finite Output Resistance (R_out), MOSFET Primary Transconductance (g_mp), Emitter Resistance (R_e) & Small Signal Input Resistance (R_sm) and hit the calculate button.

FAQs on Output Resistance of Emitter-Degenerated CE Amplifier

What is the formula to find Output Resistance of Emitter-Degenerated CE Amplifier?

The formula of Output Resistance of Emitter-Degenerated CE Amplifier is expressed as Drain Resistance = Finite Output Resistance+(MOSFET Primary Transconductance*Finite Output Resistance)*(1/Emitter Resistance+1/Small Signal Input Resistance). Here is an example- 0.00035 = 350+(0.01977*350)*(1/67+1/1450).

How to calculate Output Resistance of Emitter-Degenerated CE Amplifier?

With Finite Output Resistance (R_out), MOSFET Primary Transconductance (g_mp), Emitter Resistance (R_e) & Small Signal Input Resistance (R_sm) we can find Output Resistance of Emitter-Degenerated CE Amplifier using the formula - Drain Resistance = Finite Output Resistance+(MOSFET Primary Transconductance*Finite Output Resistance)*(1/Emitter Resistance+1/Small Signal Input Resistance).

What are the other ways to Calculate Drain Resistance?

Here are the different ways to Calculate Drain Resistance-

Drain Resistance=Resistance of Secondary Winding in Primary+2*Finite Resistance+2*Finite Resistance*MOSFET Primary Transconductance*Resistance of Secondary Winding in Primary
Drain Resistance=Finite Output Resistance+Source Resistance+(MOSFET Primary Transconductance*Finite Output Resistance*Source Resistance)

Can the Output Resistance of Emitter-Degenerated CE Amplifier be negative?

No, the Output Resistance of Emitter-Degenerated CE Amplifier, measured in Electric Resistance cannot be negative.

Which unit is used to measure Output Resistance of Emitter-Degenerated CE Amplifier?

Output Resistance of Emitter-Degenerated CE Amplifier is usually measured using the Kilohm[kΩ] for Electric Resistance. Ohm[kΩ], Megohm[kΩ], Microhm[kΩ] are the few other units in which Output Resistance of Emitter-Degenerated CE Amplifier can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

Output Resistance of Emitter-Degenerated CE Amplifier Formula

​GoOutput Resistance at Another Drain of Controlled Source Transistor Formula

​GoOutput Resistance of CS Amplifier with Source Resistance Formula

Output Resistance of Emitter-Degenerated CE Amplifier Example

Output Resistance of Emitter-Degenerated CE Amplifier Solution

Output Resistance of Emitter-Degenerated CE Amplifier Formula Elements

Other Formulas to find Drain Resistance

Other formulas in Common Emitter Amplifier category

How to Evaluate Output Resistance of Emitter-Degenerated CE Amplifier?

FAQs on Output Resistance of Emitter-Degenerated CE Amplifier

Variable Name

GoOutput Resistance at Another Drain of Controlled Source Transistor Formula

GoOutput Resistance of CS Amplifier with Source Resistance Formula