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Output Resistance at Another Drain of Controlled Source Transistor Formula

GoOutput Resistance of CS Amplifier with Source Resistance 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 2 + 2 \cdot R fi + 2 \cdot R fi \cdot g mp \cdot R 2

R_d - Drain Resistance?R₂ - Resistance of Secondary Winding in Primary?R_fi - Finite Resistance?g_mp - MOSFET Primary Transconductance?

Output Resistance at Another Drain of Controlled Source Transistor Example

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Here is how the Output Resistance at Another Drain of Controlled Source Transistor equation looks like with Values.

Here is how the Output Resistance at Another Drain of Controlled Source Transistor equation looks like with Units.

Here is how the Output Resistance at Another Drain of Controlled Source Transistor equation looks like.

0.3585 = 0.064 + 2 \cdot 0.065 + 2 \cdot 0.065 \cdot 19.77 \cdot 0.064

0.3585kΩ = 0.064kΩ + 2 \cdot 0.065kΩ + 2 \cdot 0.065kΩ \cdot 19.77mS \cdot 0.064kΩ

0.3585 = 0.064 + 2 \cdot 0.065 + 2 \cdot 0.065 \cdot 19.77 \cdot 0.064

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Output Resistance at Another Drain of Controlled Source Transistor Solution

Follow our step by step solution on how to calculate Output Resistance at Another Drain of Controlled Source Transistor?

FIRST Step Consider the formula

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

Next Step Substitute values of Variables

∴

R d = 0.064kΩ + 2 \cdot 0.065kΩ + 2 \cdot 0.065kΩ \cdot 19.77mS \cdot 0.064kΩ

Next Step Convert Units

∴

R d = 64Ω + 2 \cdot 65Ω + 2 \cdot 65Ω \cdot 0.0198S \cdot 64Ω

Next Step Prepare to Evaluate

∴

R d = 64 + 2 \cdot 65 + 2 \cdot 65 \cdot 0.0198 \cdot 64

Next Step Evaluate

∴

R d = 358.4864Ω

Next Step Convert to Output's Unit

∴

R d = 0.3584864kΩ

LAST Step Rounding Answer

∴

R d = 0.3585kΩ

Output Resistance at Another Drain of Controlled Source Transistor 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

Resistance of Secondary Winding in Primary

The Resistance of Secondary Winding in Primary of a MOSFET is the opposition to the current flowing through it. It depends on the specific MOSFET design and the operating conditions.

Symbol: R₂

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Resistance of Secondary Winding in Primary

Finite Resistance

A finite resistance simply means that the resistance in a circuit is not infinite or zero. In other words, the circuit has some amount of resistance, which can affect the behavior of the circuit.

Symbol: R_fi

Measurement: Electric ResistanceUnit: kΩ

Note: Value can be positive or negative.

Formulas to find Finite 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 of CS Amplifier with Source Resistance

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

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 at Another Drain of Controlled Source Transistor?

Output Resistance at Another Drain of Controlled Source Transistor evaluator uses Drain Resistance = Resistance of Secondary Winding in Primary+2*Finite Resistance+2*Finite Resistance*MOSFET Primary Transconductance*Resistance of Secondary Winding in Primary to evaluate the Drain Resistance, The Output resistance at another drain of controlled source transistor formula is defined as simply the parallel combination of the Emitter (Source) resistor RL and the small-signal emitter (source) resistance of the transistor r_E. Drain Resistance is denoted by R_d symbol.

How to evaluate Output Resistance at Another Drain of Controlled Source Transistor using this online evaluator? To use this online evaluator for Output Resistance at Another Drain of Controlled Source Transistor, enter Resistance of Secondary Winding in Primary (R₂), Finite Resistance (R_fi) & MOSFET Primary Transconductance (g_mp) and hit the calculate button.

FAQs on Output Resistance at Another Drain of Controlled Source Transistor

What is the formula to find Output Resistance at Another Drain of Controlled Source Transistor?

The formula of Output Resistance at Another Drain of Controlled Source Transistor is expressed as Drain Resistance = Resistance of Secondary Winding in Primary+2*Finite Resistance+2*Finite Resistance*MOSFET Primary Transconductance*Resistance of Secondary Winding in Primary. Here is an example- 0.000358 = 64+2*65+2*65*0.01977*64.

How to calculate Output Resistance at Another Drain of Controlled Source Transistor?

With Resistance of Secondary Winding in Primary (R₂), Finite Resistance (R_fi) & MOSFET Primary Transconductance (g_mp) we can find Output Resistance at Another Drain of Controlled Source Transistor using the formula - Drain Resistance = Resistance of Secondary Winding in Primary+2*Finite Resistance+2*Finite Resistance*MOSFET Primary Transconductance*Resistance of Secondary Winding in Primary.

What are the other ways to Calculate Drain Resistance?

Here are the different ways to Calculate Drain Resistance-

Drain Resistance=Finite Output Resistance+Source Resistance+(MOSFET Primary Transconductance*Finite Output Resistance*Source Resistance)
Drain Resistance=Finite Output Resistance+(MOSFET Primary Transconductance*Finite Output Resistance)*(1/Emitter Resistance+1/Small Signal Input Resistance)

Can the Output Resistance at Another Drain of Controlled Source Transistor be negative?

No, the Output Resistance at Another Drain of Controlled Source Transistor, measured in Electric Resistance cannot be negative.

Which unit is used to measure Output Resistance at Another Drain of Controlled Source Transistor?

Output Resistance at Another Drain of Controlled Source Transistor 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 at Another Drain of Controlled Source Transistor can be measured.

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Output Resistance at Another Drain of Controlled Source Transistor Formula

​GoOutput Resistance of CS Amplifier with Source Resistance Formula

​GoOutput Resistance of Emitter-Degenerated CE Amplifier Formula

Output Resistance at Another Drain of Controlled Source Transistor Example

Output Resistance at Another Drain of Controlled Source Transistor Solution

Output Resistance at Another Drain of Controlled Source Transistor Formula Elements

Other Formulas to find Drain Resistance

Other formulas in Common Source Amplifier category

How to Evaluate Output Resistance at Another Drain of Controlled Source Transistor?

FAQs on Output Resistance at Another Drain of Controlled Source Transistor

Variable Name

GoOutput Resistance of CS Amplifier with Source Resistance Formula

GoOutput Resistance of Emitter-Degenerated CE Amplifier Formula