Overall Voltage Gain of Buffer Amplifier given Load Resistance Solution

STEP 0: Pre-Calculation Summary
Formula Used
Voltage Gain = Load Resistance/(Load Resistance+Emitter Resistance+Signal Resistance/(Common Emitter Current Gain+1))
Av = RL/(RL+Re+Rs/(β+1))
This formula uses 5 Variables
Variables Used
Voltage Gain - (Measured in Decibel) - Voltage gain is defined as the ratio of the output voltage to the input voltage.
Load Resistance - (Measured in Ohm) - Load Resistance is the external resistance or impedance that is connected to the output of a circuit or device, and it is used to extract power or signal from the circuit.
Emitter Resistance - (Measured in Ohm) - Emitter Resistance is a dynamic resistance of the emitter-base junction diode of a transistor.
Signal Resistance - (Measured in Ohm) - Signal Resistance is the resistance which is fed with the signal voltage source vs to an Amplifier.
Common Emitter Current Gain - Common emitter current gain is influenced by 2 factors: width of base region W, and relative dopings of base region and emitter region. Its range varies from 50-200.
STEP 1: Convert Input(s) to Base Unit
Load Resistance: 4 Kilohm --> 4000 Ohm (Check conversion here)
Emitter Resistance: 0.35 Kilohm --> 350 Ohm (Check conversion here)
Signal Resistance: 0.24 Kilohm --> 240 Ohm (Check conversion here)
Common Emitter Current Gain: 65 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Av = RL/(RL+Re+Rs/(β+1)) --> 4000/(4000+350+240/(65+1))
Evaluating ... ...
Av = 0.91877218626018
STEP 3: Convert Result to Output's Unit
0.91877218626018 Decibel --> No Conversion Required
FINAL ANSWER
0.91877218626018 0.918772 Decibel <-- Voltage Gain
(Calculation completed in 00.020 seconds)

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16 Amplification Factor/Gain Calculators

Amplification Factor of BJT
Go BJT Amplification Factor = (Collector Current/Threshold Voltage)*((Positive DC Voltage+Collector-Emitter Voltage)/Collector Current)
Overall Voltage Gain of Amplifier when Load Resistance is Connected to Output
Go Voltage Gain = Common-Base Current Gain*(1/Collector Resistance+1/Load Resistance)^-1/(Signal Resistance+Emitter Resistance)
Overall Voltage Gain of Buffer Amplifier given Load Resistance
Go Voltage Gain = Load Resistance/(Load Resistance+Emitter Resistance+Signal Resistance/(Common Emitter Current Gain+1))
Overall Voltage Gain given Load Resistance of BJT
Go Voltage Gain = -Transconductance*((Collector Resistance*Load Resistance)/(Collector Resistance+Load Resistance))
Common Mode Gain of BJT
Go Common Mode Gain = -(Collector Resistance/(2*Output Resistance))*(Change in Collector Resistance/Collector Resistance)
Total Power Dissipated in BJT
Go Power = Collector-Emitter Voltage*Collector Current+Base-Emitter Voltage*Base Current
Voltage Gain given all Voltages
Go Voltage Gain = -(Supply Voltage-Collector-Emitter Voltage)/Thermal Voltage
Voltage Gain given Collector Current
Go Voltage Gain = -(Collector Current/Thermal Voltage)*Collector Resistance
Total Power Supplied in BJT
Go Power = Supply Voltage*(Collector Current+Input Current)
Common-Base Current Gain
Go Common-Base Current Gain = Common Emitter Current Gain/(Common Emitter Current Gain+1)
Common-Emitter Current Gain using Common-Base Current Gain
Go Common Emitter Current Gain = Common-Base Current Gain/(1-Common-Base Current Gain)
Open Circuit Voltage Gain given Open Circuit Transresistance
Go Open Circuit Voltage Gain = Open Circuit Transresistance/Input Resistance
Forced Common-Emitter Current Gain
Go Forced Common-Emitter Current Gain = Collector Current/Base Current
Voltage Gain given Transconductance and Collector Resistance
Go Voltage Gain = -Transconductance*Collector Resistance
Intrinsic Gain of BJT
Go Intrinsic Gain = Early Voltage/Thermal Voltage
Short-Circuit Current Gain
Go Current Gain = Output Current/Input Current

Overall Voltage Gain of Buffer Amplifier given Load Resistance Formula

Voltage Gain = Load Resistance/(Load Resistance+Emitter Resistance+Signal Resistance/(Common Emitter Current Gain+1))
Av = RL/(RL+Re+Rs/(β+1))

What is the main function of a common collector amplifier or buffer amplifier?

The common collector or grounded collector configuration is generally used where a high impedance input source needs to be connected to a low impedance output load requiring a high current gain.

How to Calculate Overall Voltage Gain of Buffer Amplifier given Load Resistance?

Overall Voltage Gain of Buffer Amplifier given Load Resistance calculator uses Voltage Gain = Load Resistance/(Load Resistance+Emitter Resistance+Signal Resistance/(Common Emitter Current Gain+1)) to calculate the Voltage Gain, Overall Voltage Gain of Buffer Amplifier given Load Resistance is the ratio of the output voltage to the input voltage. It is designed to provide a high input impedance and a low output impedance, which helps to prevent loading of the input signal source and to provide a low-impedance output that can drive other circuits. Voltage Gain is denoted by Av symbol.

How to calculate Overall Voltage Gain of Buffer Amplifier given Load Resistance using this online calculator? To use this online calculator for Overall Voltage Gain of Buffer Amplifier given Load Resistance, enter Load Resistance (RL), Emitter Resistance (Re), Signal Resistance (Rs) & Common Emitter Current Gain (β) and hit the calculate button. Here is how the Overall Voltage Gain of Buffer Amplifier given Load Resistance calculation can be explained with given input values -> 0.918772 = 4000/(4000+350+240/(65+1)).

FAQ

What is Overall Voltage Gain of Buffer Amplifier given Load Resistance?
Overall Voltage Gain of Buffer Amplifier given Load Resistance is the ratio of the output voltage to the input voltage. It is designed to provide a high input impedance and a low output impedance, which helps to prevent loading of the input signal source and to provide a low-impedance output that can drive other circuits and is represented as Av = RL/(RL+Re+Rs/(β+1)) or Voltage Gain = Load Resistance/(Load Resistance+Emitter Resistance+Signal Resistance/(Common Emitter Current Gain+1)). Load Resistance is the external resistance or impedance that is connected to the output of a circuit or device, and it is used to extract power or signal from the circuit, Emitter Resistance is a dynamic resistance of the emitter-base junction diode of a transistor, Signal Resistance is the resistance which is fed with the signal voltage source vs to an Amplifier & Common emitter current gain is influenced by 2 factors: width of base region W, and relative dopings of base region and emitter region. Its range varies from 50-200.
How to calculate Overall Voltage Gain of Buffer Amplifier given Load Resistance?
Overall Voltage Gain of Buffer Amplifier given Load Resistance is the ratio of the output voltage to the input voltage. It is designed to provide a high input impedance and a low output impedance, which helps to prevent loading of the input signal source and to provide a low-impedance output that can drive other circuits is calculated using Voltage Gain = Load Resistance/(Load Resistance+Emitter Resistance+Signal Resistance/(Common Emitter Current Gain+1)). To calculate Overall Voltage Gain of Buffer Amplifier given Load Resistance, you need Load Resistance (RL), Emitter Resistance (Re), Signal Resistance (Rs) & Common Emitter Current Gain (β). With our tool, you need to enter the respective value for Load Resistance, Emitter Resistance, Signal Resistance & Common Emitter Current Gain and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Voltage Gain?
In this formula, Voltage Gain uses Load Resistance, Emitter Resistance, Signal Resistance & Common Emitter Current Gain. We can use 5 other way(s) to calculate the same, which is/are as follows -
  • Voltage Gain = -(Collector Current/Thermal Voltage)*Collector Resistance
  • Voltage Gain = -(Supply Voltage-Collector-Emitter Voltage)/Thermal Voltage
  • Voltage Gain = -Transconductance*Collector Resistance
  • Voltage Gain = -Transconductance*((Collector Resistance*Load Resistance)/(Collector Resistance+Load Resistance))
  • Voltage Gain = Common-Base Current Gain*(1/Collector Resistance+1/Load Resistance)^-1/(Signal Resistance+Emitter Resistance)
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