Input Resistance of CC CB Amplifier Calculator

✖Common Emitter Current Gain is a measure of the current gain of a common emitter amplifier, which is a type of amplifier configuration used in electronic circuits.ⓘ Common Emitter Current Gain [β]			+10% -10%
✖Emitter Resistance is a dynamic resistance of the emitter-base junction diode of a transistor.ⓘ Emitter Resistance [R_e]			+10% -10%
✖Resistance of Secondary Winding in Primary Resistance is the Resistance of Secondary winding in the primary in the transformer coil.ⓘ Resistance of Secondary Winding in Primary [R'₂]			+10% -10%

✖Resistance is a measure of the opposition to current flow in an electrical circuit. Its S.I unit is ohm.ⓘ Input Resistance of CC CB Amplifier [R_t]

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Formula

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Input Resistance of CC CB Amplifier

Formula

R t = (β + 1) \cdot (R e + R' 2)

Example

0.480691 kΩ = (0.005 + 1) \cdot (0.468 kΩ + 0.0103 kΩ)

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Input Resistance of CC CB Amplifier Solution

STEP 0: Pre-Calculation Summary

Formula Used

Resistance = (Common Emitter Current Gain+1)*(Emitter Resistance+Resistance of Secondary Winding in Primary)
R_t = (β+1)*(R_e+R'₂)
This formula uses 4 Variables

Variables Used

Resistance - (Measured in Ohm) - Resistance is a measure of the opposition to current flow in an electrical circuit. Its S.I unit is ohm.
Common Emitter Current Gain - Common Emitter Current Gain is a measure of the current gain of a common emitter amplifier, which is a type of amplifier configuration used in electronic circuits.
Emitter Resistance - (Measured in Ohm) - Emitter Resistance is a dynamic resistance of the emitter-base junction diode of a transistor.
Resistance of Secondary Winding in Primary - (Measured in Ohm) - Resistance of Secondary Winding in Primary Resistance is the Resistance of Secondary winding in the primary in the transformer coil.

STEP 1: Convert Input(s) to Base Unit

Common Emitter Current Gain: 0.005 --> No Conversion Required
Emitter Resistance: 0.468 Kilohm --> 468 Ohm (Check conversion here)
Resistance of Secondary Winding in Primary: 0.0103 Kilohm --> 10.3 Ohm (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_t = (β+1)*(R_e+R'₂) --> (0.005+1)*(468+10.3)

Evaluating ... ...

R_t = 480.6915

STEP 3: Convert Result to Output's Unit

480.6915 Ohm -->0.4806915 Kilohm (Check conversion here)

FINAL ANSWER

0.4806915 ≈ 0.480691 Kilohm <-- Resistance

(Calculation completed in 00.004 seconds)

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Birsa Institute of Technology (BIT), Sindri

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< Response of CC and CB Amplifier Calculators

Overall Voltage Gain of CC CB Amplifier

Go Voltage Gain = 1/2*(Resistance/(Resistance+Signal Resistance))*Load Resistance*Transconductance

Input Resistance of CC CB Amplifier

Go Resistance = (Common Emitter Current Gain+1)*(Emitter Resistance+Resistance of Secondary Winding in Primary)

Total Capacitance of CB-CG Amplifier

Go Capacitance = 1/(2*pi*Load Resistance*Output Pole Frequency)

Power Gain of Amplifier given Voltage Gain and Current Gain

Go Power Gain = Voltage Gain*Current Gain

< Multi Stage Amplifiers Calculators

Gain Bandwidth Product

Go Gain Bandwidth Product = (Transconductance*Load Resistance)/(2*pi*Load Resistance*(Capacitance+Gate to Drain Capacitance))

3-DB Frequency in Design Insight and Trade-Off

Go 3 dB Frequency = 1/(2*pi*(Capacitance+Gate to Drain Capacitance)*(1/(1/Load Resistance+1/Output Resistance)))

Drain Resistance in Cascode Amplifier

Go Drain Resistance = 1/(1/Finite Input Resistance+1/Resistance)

Amplifier Gain given Function of Complex Frequency Variable

Go Amplifier Gain in Mid Band = Mid Band Gain*Gain Factor

Input Resistance of CC CB Amplifier Formula

Resistance = (Common Emitter Current Gain+1)*(Emitter Resistance+Resistance of Secondary Winding in Primary)
R_t = (β+1)*(R_e+R'₂)

What is amplifier and how it works?

The amplifier is a two-port electronic circuit that uses electric power from a power supply to increase the amplitude of a signal applied to its input terminals, producing a proportionally greater amplitude signal at its output. An amplifier is a circuit that has a power gain greater than one.

How to Calculate Input Resistance of CC CB Amplifier?

Input Resistance of CC CB Amplifier calculator uses Resistance = (Common Emitter Current Gain+1)*(Emitter Resistance+Resistance of Secondary Winding in Primary) to calculate the Resistance, The input resistance of CC CB amplifier formula is defined as the resistance seen by the current source or voltage source which drives the circuit. Resistance is denoted by R_t symbol.

How to calculate Input Resistance of CC CB Amplifier using this online calculator? To use this online calculator for Input Resistance of CC CB Amplifier, enter Common Emitter Current Gain (β), Emitter Resistance (R_e) & Resistance of Secondary Winding in Primary (R'₂) and hit the calculate button. Here is how the Input Resistance of CC CB Amplifier calculation can be explained with given input values -> 0.010721 = (0.005+1)*(468+10.3).

FAQ

What is Input Resistance of CC CB Amplifier?

The input resistance of CC CB amplifier formula is defined as the resistance seen by the current source or voltage source which drives the circuit and is represented as R_t = (β+1)*(R_e+R'₂) or Resistance = (Common Emitter Current Gain+1)*(Emitter Resistance+Resistance of Secondary Winding in Primary). Common Emitter Current Gain is a measure of the current gain of a common emitter amplifier, which is a type of amplifier configuration used in electronic circuits, Emitter Resistance is a dynamic resistance of the emitter-base junction diode of a transistor & Resistance of Secondary Winding in Primary Resistance is the Resistance of Secondary winding in the primary in the transformer coil.

How to calculate Input Resistance of CC CB Amplifier?

The input resistance of CC CB amplifier formula is defined as the resistance seen by the current source or voltage source which drives the circuit is calculated using Resistance = (Common Emitter Current Gain+1)*(Emitter Resistance+Resistance of Secondary Winding in Primary). To calculate Input Resistance of CC CB Amplifier, you need Common Emitter Current Gain (β), Emitter Resistance (R_e) & Resistance of Secondary Winding in Primary (R'₂). With our tool, you need to enter the respective value for Common Emitter Current Gain, Emitter Resistance & Resistance of Secondary Winding in Primary and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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