Credits

Birsa Institute of Technology (BIT), Sindri
Payal Priya has created this Calculator and 500+ more calculators!
Vishwakarma Government Engineering College (VGEC), Ahmedabad
Urvi Rathod has verified this Calculator and 1000+ more calculators!

Input voltage of the emitter-follower Solution

STEP 0: Pre-Calculation Summary
Formula Used
input_voltage = Small-signal voltage*(Input resistance/(Input resistance+Signal Resistance))
Vi = vπ *(Ri/(Ri+Rs))
This formula uses 3 Variables
Variables Used
Small-signal voltage - The small-signal voltage is a quantitative expression of the potential difference in electrical charge between two points in an electrical field. (Measured in Volt)
Input resistance - Input resistance is the resistance value of the voltage amplifier (Measured in Ohm)
Signal Resistance- Signal Resistance is the resistance which is fed with the signal voltage source vs to an Amplifier
STEP 1: Convert Input(s) to Base Unit
Small-signal voltage: 75 Volt --> 75 Volt No Conversion Required
Input resistance: 100000 Ohm --> 100000 Ohm No Conversion Required
Signal Resistance: 1 --> No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Vi = vπ *(Ri/(Ri+Rs)) --> 75*(100000/(100000+1))
Evaluating ... ...
Vi = 74.9992500074999
STEP 3: Convert Result to Output's Unit
74.9992500074999 Volt --> No Conversion Required
FINAL ANSWER
74.9992500074999 Volt <-- Input voltage
(Calculation completed in 00.016 seconds)

6 An Emitter Follower Calculators

Output voltage of the emitter-follower
output_voltage = Input voltage*((1/Total resistance in the emitter+1/Output resistance+1/Load resistance)/(Emitter Resistance+(1/Total resistance in the emitter+1/Output resistance+1/Load resistance))) Go
Output resistance of the emitter-follower
output_resistance_of_transistor = (1/Output resistance+1/Small-signal voltage+1/Emitter Resistance)+(1/Base Impedance+1/Signal Resistance)/(Common emitter current gain+1) Go
Input resistance of the base of the emitter-follower
change_in_base_current = (Common emitter current gain+1)*(Emitter Resistance+(1/Total resistance in the emitter+1/Output resistance+1/Load resistance)) Go
Input voltage of the emitter-follower
input_voltage = Small-signal voltage*(Input resistance/(Input resistance+Signal Resistance)) Go
Input resistance of the emitter-follower
resistance_input = 1/Signal current in the base+1/Base Current Go
Overall voltage gain of the emitter-follower
overall_voltage_gain = Output voltage/Small-signal voltage Go

Input voltage of the emitter-follower Formula

input_voltage = Small-signal voltage*(Input resistance/(Input resistance+Signal Resistance))
Vi = vπ *(Ri/(Ri+Rs))

What is meant by emitter follower?

Emitter follower is a case of the negative current feedback circuit. This is mostly used as a last-stage amplifier in signal generator circuits. The important features of Emitter Follower are − It has high input impedance. It has low output impedance.

How to Calculate Input voltage of the emitter-follower?

Input voltage of the emitter-follower calculator uses input_voltage = Small-signal voltage*(Input resistance/(Input resistance+Signal Resistance)) to calculate the Input voltage, The Input voltage of the emitter-follower formula is defined as a voltage supplied to the circuit, the input voltage is a supply voltage in the system, the Input voltage is referred to the voltage needed to supply to the system. Input voltage and is denoted by Vi symbol.

How to calculate Input voltage of the emitter-follower using this online calculator? To use this online calculator for Input voltage of the emitter-follower, enter Small-signal voltage (vπ ), Input resistance (Ri) and Signal Resistance (Rs) and hit the calculate button. Here is how the Input voltage of the emitter-follower calculation can be explained with given input values -> 74.99925 = 75*(100000/(100000+1)).

FAQ

What is Input voltage of the emitter-follower?
The Input voltage of the emitter-follower formula is defined as a voltage supplied to the circuit, the input voltage is a supply voltage in the system, the Input voltage is referred to the voltage needed to supply to the system and is represented as Vi = vπ *(Ri/(Ri+Rs)) or input_voltage = Small-signal voltage*(Input resistance/(Input resistance+Signal Resistance)). The small-signal voltage is a quantitative expression of the potential difference in electrical charge between two points in an electrical field. , Input resistance is the resistance value of the voltage amplifier and Signal Resistance is the resistance which is fed with the signal voltage source vs to an Amplifier.
How to calculate Input voltage of the emitter-follower?
The Input voltage of the emitter-follower formula is defined as a voltage supplied to the circuit, the input voltage is a supply voltage in the system, the Input voltage is referred to the voltage needed to supply to the system is calculated using input_voltage = Small-signal voltage*(Input resistance/(Input resistance+Signal Resistance)). To calculate Input voltage of the emitter-follower, you need Small-signal voltage (vπ ), Input resistance (Ri) and Signal Resistance (Rs). With our tool, you need to enter the respective value for Small-signal voltage, Input resistance and Signal Resistance 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 Input voltage?
In this formula, Input voltage uses Small-signal voltage, Input resistance and Signal Resistance. We can use 6 other way(s) to calculate the same, which is/are as follows -
  • resistance_input = 1/Signal current in the base+1/Base Current
  • change_in_base_current = (Common emitter current gain+1)*(Emitter Resistance+(1/Total resistance in the emitter+1/Output resistance+1/Load resistance))
  • input_voltage = Small-signal voltage*(Input resistance/(Input resistance+Signal Resistance))
  • output_voltage = Input voltage*((1/Total resistance in the emitter+1/Output resistance+1/Load resistance)/(Emitter Resistance+(1/Total resistance in the emitter+1/Output resistance+1/Load resistance)))
  • overall_voltage_gain = Output voltage/Small-signal voltage
  • output_resistance_of_transistor = (1/Output resistance+1/Small-signal voltage+1/Emitter Resistance)+(1/Base Impedance+1/Signal Resistance)/(Common emitter current gain+1)
Where is the Input voltage of the emitter-follower calculator used?
Among many, Input voltage of the emitter-follower calculator is widely used in real life applications like {FormulaUses}. Here are few more real life examples -
{FormulaExamplesList}
Share Image
Let Others Know
Facebook
Twitter
Reddit
LinkedIn
Email
WhatsApp
Copied!