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Output Resistance of CS Amplifier with Source Resistance Formula

GoOutput Resistance at Another Drain of Controlled Source Transistor Formula

GoOutput Resistance of Emitter-Degenerated CE Amplifier Formula

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

R_d - Drain Resistance?R_out - Finite Output Resistance?R_so - Source Resistance?g_mp - MOSFET Primary Transconductance?

Output Resistance of CS Amplifier with Source Resistance Example

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Here is how the Output Resistance of CS Amplifier with Source Resistance equation looks like with Values.

Here is how the Output Resistance of CS Amplifier with Source Resistance equation looks like with Units.

Here is how the Output Resistance of CS Amplifier with Source Resistance equation looks like.

0.3587 = 0.35 + 0.0011 + (19.77 \cdot 0.35 \cdot 0.0011)

0.3587kΩ = 0.35kΩ + 0.0011kΩ + (19.77mS \cdot 0.35kΩ \cdot 0.0011kΩ)

0.3587 = 0.35 + 0.0011 + (19.77 \cdot 0.35 \cdot 0.0011)

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Output Resistance of CS Amplifier with Source Resistance Solution

Follow our step by step solution on how to calculate Output Resistance of CS Amplifier with Source Resistance?

FIRST Step Consider the formula

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

Next Step Substitute values of Variables

∴

R d = 0.35kΩ + 0.0011kΩ + (19.77mS \cdot 0.35kΩ \cdot 0.0011kΩ)

Next Step Convert Units

∴

R d = 350Ω + 1.1Ω + (0.0198S \cdot 350Ω \cdot 1.1Ω)

Next Step Prepare to Evaluate

∴

R d = 350 + 1.1 + (0.0198 \cdot 350 \cdot 1.1)

Next Step Evaluate

∴

R d = 358.71145Ω

Next Step Convert to Output's Unit

∴

R d = 0.35871145kΩ

LAST Step Rounding Answer

∴

R d = 0.3587kΩ

Output Resistance of CS Amplifier with Source Resistance 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

Source Resistance

Source resistance is the value of internal resistance of source.

Symbol: R_so

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Source 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

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 Emitter-Degenerated CE Amplifier

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

Other formulas in Common Source 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 CS Amplifier with Source Resistance?

Output Resistance of CS Amplifier with Source Resistance evaluator uses Drain Resistance = Finite Output Resistance+Source Resistance+(MOSFET Primary Transconductance*Finite Output Resistance*Source Resistance) to evaluate the Drain Resistance, The Output Resistance of CS Amplifier with Source Resistance refers to the total effective resistance at the amplifier's output terminal when considering the effects of both the amplifier's internal characteristics and the external circuit components. Drain Resistance is denoted by R_d symbol.

How to evaluate Output Resistance of CS Amplifier with Source Resistance using this online evaluator? To use this online evaluator for Output Resistance of CS Amplifier with Source Resistance, enter Finite Output Resistance (R_out), Source Resistance (R_so) & MOSFET Primary Transconductance (g_mp) and hit the calculate button.

FAQs on Output Resistance of CS Amplifier with Source Resistance

What is the formula to find Output Resistance of CS Amplifier with Source Resistance?

The formula of Output Resistance of CS Amplifier with Source Resistance is expressed as Drain Resistance = Finite Output Resistance+Source Resistance+(MOSFET Primary Transconductance*Finite Output Resistance*Source Resistance). Here is an example- 0.000359 = 350+1.1+(0.01977*350*1.1).

How to calculate Output Resistance of CS Amplifier with Source Resistance?

With Finite Output Resistance (R_out), Source Resistance (R_so) & MOSFET Primary Transconductance (g_mp) we can find Output Resistance of CS Amplifier with Source Resistance using the formula - Drain Resistance = Finite Output Resistance+Source Resistance+(MOSFET Primary Transconductance*Finite Output Resistance*Source 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+(MOSFET Primary Transconductance*Finite Output Resistance)*(1/Emitter Resistance+1/Small Signal Input Resistance)

Can the Output Resistance of CS Amplifier with Source Resistance be negative?

No, the Output Resistance of CS Amplifier with Source Resistance, measured in Electric Resistance cannot be negative.

Which unit is used to measure Output Resistance of CS Amplifier with Source Resistance?

Output Resistance of CS Amplifier with Source Resistance 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 CS Amplifier with Source Resistance can be measured.

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Output Resistance of CS Amplifier with Source Resistance Formula

​GoOutput Resistance at Another Drain of Controlled Source Transistor Formula

​GoOutput Resistance of Emitter-Degenerated CE Amplifier Formula

Output Resistance of CS Amplifier with Source Resistance Example

Output Resistance of CS Amplifier with Source Resistance Solution

Output Resistance of CS Amplifier with Source Resistance Formula Elements

Other Formulas to find Drain Resistance

Other formulas in Common Source Amplifier category

How to Evaluate Output Resistance of CS Amplifier with Source Resistance?

FAQs on Output Resistance of CS Amplifier with Source Resistance

Variable Name

GoOutput Resistance at Another Drain of Controlled Source Transistor Formula

GoOutput Resistance of Emitter-Degenerated CE Amplifier Formula