Input Resistance of Transistor Amplifier Calculator

✖Amplifier input is a measure of how much an amplifier “amplifies” the input signal.ⓘ Amplifier Input [V_ip]			+10% -10%
✖Input current is the current sent to the wire.ⓘ Input Current [i_in]			+10% -10%

✖Input resistance 2 is the opposition that an electrical component or circuit presents to the flow of electrical current when a voltage is applied to it.ⓘ Input Resistance of Transistor Amplifier [R_in]

⎘ Copy

👎

Formula

LaTeX

Reset

👍

Download Transistor Amplifiers Formula PDF PDF Image

Input Resistance of Transistor Amplifier Solution

STEP 0: Pre-Calculation Summary

Formula Used

Input Resistance = Amplifier Input/Input Current
R_in = V_ip/i_in
This formula uses 3 Variables

Variables Used

Input Resistance - (Measured in Ohm) - Input resistance 2 is the opposition that an electrical component or circuit presents to the flow of electrical current when a voltage is applied to it.
Amplifier Input - (Measured in Volt) - Amplifier input is a measure of how much an amplifier “amplifies” the input signal.
Input Current - (Measured in Ampere) - Input current is the current sent to the wire.

STEP 1: Convert Input(s) to Base Unit

Amplifier Input: 0.152 Volt --> 0.152 Volt No Conversion Required
Input Current: 0.5 Milliampere --> 0.0005 Ampere (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_in = V_ip/i_in --> 0.152/0.0005

Evaluating ... ...

R_in = 304

STEP 3: Convert Result to Output's Unit

304 Ohm -->0.304 Kilohm (Check conversion here)

FINAL ANSWER

0.304 Kilohm <-- Input Resistance

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Electronics » Amplifiers » Transistor Amplifiers » Emitter Follower » Input Resistance of Transistor Amplifier

Credits

Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

Payal Priya has created this Calculator and 600+ more calculators!

Verified by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

Urvi Rathod has verified this Calculator and 1900+ more calculators!

< Emitter Follower Calculators

Output Resistance of Emitter Follower

LaTeX Go Finite Resistance = (1/Load Resistance+1/Small Signal Voltage+1/Emitter Resistance)+(1/Base Impedance+1/Signal Resistance)/(Collector Base Current Gain+1)

Collector Current in Active Region when Transistor Acts as Amplifier

LaTeX Go Collector Current = Saturation Current*e^(Voltage across Base Emitter Junction/Threshold Voltage)

Saturation Current of Emitter Follower

LaTeX Go Saturation Current = Collector Current/e^(Voltage across Base Emitter Junction/Threshold Voltage)

Input Resistance of Emitter Follower

LaTeX Go Input Resistance = 1/(1/Signal Resistance in Base+1/Base Resistance)

< Multi Stage Transistor Amplifiers Calculators

Open Circuit Bipolar Cascode Voltage Gain

LaTeX Go Bipolar Cascode Voltage Gain = -MOSFET Primary Transconductance*(MOSFET Secondary Transconductance*Finite Output Resistance)*(1/Finite Output Resistance of Transistor 1+1/Small Signal Input Resistance)^-1

Drain Resistance of Cascode Amplifier

LaTeX Go Drain Resistance = (Output Voltage Gain/(MOSFET Primary Transconductance^2*Finite Output Resistance))

Output voltage gain of MOS Cascode Amplifier

LaTeX Go Output Voltage Gain = -MOSFET Primary Transconductance^2*Finite Output Resistance*Drain Resistance

Equivalent Resistance of Cascode Amplifier

LaTeX Go Resistance between Drain and Ground = (1/Finite Output Resistance of Transistor 1+1/Input Resistance)^-1

Input Resistance of Transistor Amplifier Formula

LaTeX Go

Input Resistance = Amplifier Input/Input Current
R_in = V_ip/i_in

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 Resistance of Transistor Amplifier?

Input Resistance of Transistor Amplifier calculator uses Input Resistance = Amplifier Input/Input Current to calculate the Input Resistance, The Input Resistance of Transistor Amplifier formula refers to the measure of how much the amplifier circuit resists the flow of input current. Input Resistance is denoted by R_in symbol.

How to calculate Input Resistance of Transistor Amplifier using this online calculator? To use this online calculator for Input Resistance of Transistor Amplifier, enter Amplifier Input (V_ip) & Input Current (i_in) and hit the calculate button. Here is how the Input Resistance of Transistor Amplifier calculation can be explained with given input values -> 0.0117 = 0.152/0.0005.

FAQ

What is Input Resistance of Transistor Amplifier?

The Input Resistance of Transistor Amplifier formula refers to the measure of how much the amplifier circuit resists the flow of input current and is represented as R_in = V_ip/i_in or Input Resistance = Amplifier Input/Input Current. Amplifier input is a measure of how much an amplifier “amplifies” the input signal & Input current is the current sent to the wire.

How to calculate Input Resistance of Transistor Amplifier?

The Input Resistance of Transistor Amplifier formula refers to the measure of how much the amplifier circuit resists the flow of input current is calculated using Input Resistance = Amplifier Input/Input Current. To calculate Input Resistance of Transistor Amplifier, you need Amplifier Input (V_ip) & Input Current (i_in). With our tool, you need to enter the respective value for Amplifier Input & Input Current 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 Resistance?

In this formula, Input Resistance uses Amplifier Input & Input Current. We can use 2 other way(s) to calculate the same, which is/are as follows -

Input Resistance = 1/(1/Signal Resistance in Base+1/Base Resistance)
Input Resistance = 1/(1/Signal Resistance in Base+1/Base Resistance)

Home

FREE PDFs

🔍 Search