Input Voltage of Amplifier Solution

STEP 0: Pre-Calculation Summary
Formula Used
Input Voltage = (Input Resistance/(Input Resistance+Signal Resistance))*Signal Voltage
Vin = (Rin/(Rin+Rsi))*Vsi
This formula uses 4 Variables
Variables Used
Input Voltage - (Measured in Volt) - Input Voltage is the voltage applied by a source from the input terminal.
Input Resistance - (Measured in Ohm) - The input resistance is the resistance seen by the current source or voltage source which drives the circuit.
Signal Resistance - (Measured in Ohm) - Signal Resistance is the resistance which is fed with the signal voltage source to an amplifier.
Signal Voltage - (Measured in Volt) - Signal Voltage refers to the voltage of the input signal that the amplifier is designed to amplify. It is typically measured in volts (V).
STEP 1: Convert Input(s) to Base Unit
Input Resistance: 28 Kilohm --> 28000 Ohm (Check conversion ​here)
Signal Resistance: 1.25 Kilohm --> 1250 Ohm (Check conversion ​here)
Signal Voltage: 10 Volt --> 10 Volt No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Vin = (Rin/(Rin+Rsi))*Vsi --> (28000/(28000+1250))*10
Evaluating ... ...
Vin = 9.57264957264957
STEP 3: Convert Result to Output's Unit
9.57264957264957 Volt --> No Conversion Required
FINAL ANSWER
9.57264957264957 9.57265 Volt <-- Input Voltage
(Calculation completed in 00.004 seconds)

Credits

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Created by Payal Priya
Birsa Institute of Technology (BIT), Sindri
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Verified by Anshika Arya
National Institute Of Technology (NIT), Hamirpur
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Input Voltage of Amplifier Formula

​LaTeX ​Go
Input Voltage = (Input Resistance/(Input Resistance+Signal Resistance))*Signal Voltage
Vin = (Rin/(Rin+Rsi))*Vsi

What is the function of amplifier?

An amplifier is an electronic device that increases the voltage, current, or power of a signal. Amplifiers are used in wireless communications and broadcasting, and in audio equipment of all kinds. They can be categorized as either weak-signal amplifiers or power amplifiers.

How to Calculate Input Voltage of Amplifier?

Input Voltage of Amplifier calculator uses Input Voltage = (Input Resistance/(Input Resistance+Signal Resistance))*Signal Voltage to calculate the Input Voltage, The input voltage of amplifier refers to the voltage level at which the amplifier can accurately amplify the input signal. Input Voltage is denoted by Vin symbol.

How to calculate Input Voltage of Amplifier using this online calculator? To use this online calculator for Input Voltage of Amplifier, enter Input Resistance (Rin), Signal Resistance (Rsi) & Signal Voltage (Vsi) and hit the calculate button. Here is how the Input Voltage of Amplifier calculation can be explained with given input values -> 9.57265 = (28000/(28000+1250))*10.

FAQ

What is Input Voltage of Amplifier?
The input voltage of amplifier refers to the voltage level at which the amplifier can accurately amplify the input signal and is represented as Vin = (Rin/(Rin+Rsi))*Vsi or Input Voltage = (Input Resistance/(Input Resistance+Signal Resistance))*Signal Voltage. The input resistance is the resistance seen by the current source or voltage source which drives the circuit, Signal Resistance is the resistance which is fed with the signal voltage source to an amplifier & Signal Voltage refers to the voltage of the input signal that the amplifier is designed to amplify. It is typically measured in volts (V).
How to calculate Input Voltage of Amplifier?
The input voltage of amplifier refers to the voltage level at which the amplifier can accurately amplify the input signal is calculated using Input Voltage = (Input Resistance/(Input Resistance+Signal Resistance))*Signal Voltage. To calculate Input Voltage of Amplifier, you need Input Resistance (Rin), Signal Resistance (Rsi) & Signal Voltage (Vsi). With our tool, you need to enter the respective value for Input Resistance, Signal Resistance & Signal Voltage 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 Input Resistance, Signal Resistance & Signal Voltage. We can use 1 other way(s) to calculate the same, which is/are as follows -
  • Input Voltage = (Peak Voltage*pi)/2
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