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)*("R"_{"e"}+"R'"_{"2"})`

Example

`"0.480691kΩ"=("0.005"+1)*("0.468kΩ"+"0.0103kΩ")`

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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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Home » Engineering » Electronics » Amplifiers » High Frequency Response Amplifiers » Response of CC & CB Amplifier » Input Resistance of CC CB Amplifier

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Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

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National Institute Of Technology (NIT), Hamirpur

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< 9 Response of CC & CB Amplifier Calculators

Pole at Input for CB-CG Amplifier with Buffer Implemented CC-CD

Go Input Pole Frequency = 1/(2*pi*(Second Input Capacitance/2+Capacitance)*((Signal Resistance*Input Resistance)/(Signal Resistance+Input Resistance)))

Overall Voltage Gain of CB-CG with Buffer Implemented CC-CD

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

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)

Pole at Output of CB-CG with Buffer Implemented CC-CD

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

Total Capacitance of CB-CG Amplifier

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

Load Resistance of CB-CG Amplifier

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

Voltage Gain with Load Resistance at Input

Go Voltage Gain = 1/2*Transconductance*Load Resistance

Power Gain of Amplifier given Voltage Gain and Current Gain

Go Power Gain = Voltage Gain*Current Gain

< 20 Multi Stage Amplifiers Calculators

Constant 2 of Source Follower Transfer Function

Go Constant B = (((Gate to Source Capacitance+Gate to Drain Capacitance)*Capacitance+(Gate to Source Capacitance+Gate to Source Capacitance))/(Transconductance*Load Resistance+1))*Signal Resistance*Load Resistance

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)))

Transconductance of CC-CB Amplifier

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

Overall Voltage Gain of CC CB Amplifier

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

Signal Voltage in High Frequency Response of Source and Emitter Follower

Go Output Voltage = (Electric Current*Signal Resistance)+Gate to Source Voltage+Threshold Voltage

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)

Dominant Pole Frequency of Differential Amplifier

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

Frequency of Differential Amplifier given Load Resistance

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

Short Circuit Transconductance of Differential Amplifier

Go Short Circuit Transconductance = Output Current/Differential Input Signal

Transition Frequency of Source-Follower Transfer Function

Go Transition Frequency = Transconductance/Gate to Source Capacitance

Gate to Source Capacitance of Source Follower

Go Gate to Source Capacitance = Transconductance/Transition Frequency

Transconductance of Source-Follower

Go Transconductance = Transition Frequency*Gate to Source Capacitance

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

Gain Factor

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

Dominant Pole-Frequency of Source-Follower

Go Frequency of Dominant Pole = 1/(2*pi*Constant B)

Power Gain of Amplifier given Voltage Gain and Current Gain

Go Power Gain = Voltage Gain*Current Gain

Break Frequency of Source Follower

Go Break Frequency = 1/sqrt(Constant C)

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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