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Equivalent Signal Resistance of CS Amplifier Formula

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Internal Small Signal Resistance in a transistor refers to the resistance that occurs within the transistor due to the internal construction of the device. Check FAQs

R' sig = \frac{1}{(\frac{1}{R sig} + \frac{1}{R out})}

R'_sig - Internal Small Signal Resistance?R_sig - Signal Resistance?R_out - Output Resistance?

Equivalent Signal Resistance of CS Amplifier Example

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Here is how the Equivalent Signal Resistance of CS Amplifier equation looks like with Values.

Here is how the Equivalent Signal Resistance of CS Amplifier equation looks like with Units.

Here is how the Equivalent Signal Resistance of CS Amplifier equation looks like.

0.6835 = \frac{1}{(\frac{1}{1.25} + \frac{1}{1.508})}

0.6835kΩ = \frac{1}{(\frac{1}{1.25kΩ} + \frac{1}{1.508kΩ})}

0.6835 = \frac{1}{(\frac{1}{1.25} + \frac{1}{1.508})}

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Equivalent Signal Resistance of CS Amplifier Solution

Follow our step by step solution on how to calculate Equivalent Signal Resistance of CS Amplifier?

FIRST Step Consider the formula

R' sig = \frac{1}{(\frac{1}{R sig} + \frac{1}{R out})}

Next Step Substitute values of Variables

∴

R' sig = \frac{1}{(\frac{1}{1.25kΩ} + \frac{1}{1.508kΩ})}

Next Step Convert Units

∴

R' sig = \frac{1}{(\frac{1}{1250Ω} + \frac{1}{1508Ω})}

Next Step Prepare to Evaluate

∴

R' sig = \frac{1}{(\frac{1}{1250} + \frac{1}{1508})}

Next Step Evaluate

∴

R' sig = 683.46627991298Ω

Next Step Convert to Output's Unit

∴

R' sig = 0.68346627991298kΩ

LAST Step Rounding Answer

∴

R' sig = 0.6835kΩ

Equivalent Signal Resistance of CS Amplifier Formula Elements

Variables

Internal Small Signal Resistance

Internal Small Signal Resistance in a transistor refers to the resistance that occurs within the transistor due to the internal construction of the device.

Symbol: R'_sig

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Internal Small Signal Resistance

Signal Resistance

Signal Resistance is the resistance which is fed with the signal voltage source vs to an Amplifier.

Symbol: R_sig

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Signal Resistance

Output Resistance

Output resistance is the resistance an amplifier sees when driving a load. It is an important parameter in amplifier design as it affects the amplifier's output power and efficiency.

Symbol: R_out

Measurement: Electric ResistanceUnit: kΩ

Note: Value should be greater than 0.

Formulas to find Output Resistance

Other formulas in Response of CS Amplifier category

Go Amplifier Bandwidth in Discrete-Circuit Amplifier

BW = f h - f L

Go Collector Base Junction Resistance of CE Amplifier

R c = R sig \cdot (1 + g m \cdot R L) + R L

Go Effective High Frequency Time Constant of CE Amplifier

𝜏 H = C be \cdot R sig + (C cb \cdot (R sig \cdot (1 + g m \cdot R L) + R L)) + (C t \cdot R L)

Go High-Frequency Band given Complex Frequency Variable

A m = \sqrt{\frac{(1 + (\frac{f 3dB}{f t})) \cdot (1 + (\frac{f 3dB}{f o}))}{(1 + (\frac{f 3dB}{f p})) \cdot (1 + (\frac{f 3dB}{f p2}))}}

How to Evaluate Equivalent Signal Resistance of CS Amplifier?

Equivalent Signal Resistance of CS Amplifier evaluator uses Internal Small Signal Resistance = 1/((1/Signal Resistance+1/Output Resistance)) to evaluate the Internal Small Signal Resistance, The Equivalent signal resistance of CS amplifier formula is defined as the aggregate resistance connected either in parallel or series is calculated. Internal Small Signal Resistance is denoted by R'_sig symbol.

How to evaluate Equivalent Signal Resistance of CS Amplifier using this online evaluator? To use this online evaluator for Equivalent Signal Resistance of CS Amplifier, enter Signal Resistance (R_sig) & Output Resistance (R_out) and hit the calculate button.

FAQs on Equivalent Signal Resistance of CS Amplifier

What is the formula to find Equivalent Signal Resistance of CS Amplifier?

The formula of Equivalent Signal Resistance of CS Amplifier is expressed as Internal Small Signal Resistance = 1/((1/Signal Resistance+1/Output Resistance)). Here is an example- 0.000683 = 1/((1/1250+1/1508)).

How to calculate Equivalent Signal Resistance of CS Amplifier?

With Signal Resistance (R_sig) & Output Resistance (R_out) we can find Equivalent Signal Resistance of CS Amplifier using the formula - Internal Small Signal Resistance = 1/((1/Signal Resistance+1/Output Resistance)).

Can the Equivalent Signal Resistance of CS Amplifier be negative?

No, the Equivalent Signal Resistance of CS Amplifier, measured in Electric Resistance cannot be negative.

Which unit is used to measure Equivalent Signal Resistance of CS Amplifier?

Equivalent Signal Resistance of CS Amplifier is usually measured using the Kilohm[kΩ] for Electric Resistance. Ohm[kΩ], Megohm[kΩ], Microhm[kΩ] are the few other units in which Equivalent Signal Resistance of CS Amplifier can be measured.

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Equivalent Signal Resistance of CS Amplifier Formula

Equivalent Signal Resistance of CS Amplifier Example

Equivalent Signal Resistance of CS Amplifier Solution

Equivalent Signal Resistance of CS Amplifier Formula Elements

Other formulas in Response of CS Amplifier category

How to Evaluate Equivalent Signal Resistance of CS Amplifier?

FAQs on Equivalent Signal Resistance of CS Amplifier

Variable Name