Collector Current in Active Region when Transistor Acts as Amplifier Calculator

✖Saturation current is the diode leakage current density in the absence of light. It is an important parameter which differentiates one diode from another.ⓘ Saturation Current [i_s]			+10% -10%
✖The Voltage across Base Emitter Junction is the forward voltage between the base and emitter of the transistor.ⓘ Voltage across Base Emitter Junction [V_be]			+10% -10%
✖Threshold voltage of transistor is the minimum gate to source voltage that is needed to create a conducting path between the source and drain terminals.ⓘ Threshold Voltage [V_t]			+10% -10%

✖Collector current is an amplified output current of a bipolar junction transistor.ⓘ Collector Current in Active Region when Transistor Acts as Amplifier [i_c]

⎘ Copy

👎

Formula

✖

Collector Current in Active Region when Transistor Acts as Amplifier

Formula

`"i"_{"c"} = "i"_{"s"}*e^("V"_{"be"}/"V"_{"t"})`

Example

`"39.44194mA"="0.01mA"*e^("16.56V"/"2V")`

Calculator

LaTeX

Reset

👍

Download Transistor Amplifiers Formula PDF PDF Image

Collector Current in Active Region when Transistor Acts as Amplifier Solution

STEP 0: Pre-Calculation Summary

Formula Used

Collector Current = Saturation Current*e^(Voltage across Base Emitter Junction/Threshold Voltage)
i_c = i_s*e^(V_be/V_t)
This formula uses 1 Constants, 4 Variables

Constants Used

e - Napier's constant Value Taken As 2.71828182845904523536028747135266249

Variables Used

Collector Current - (Measured in Ampere) - Collector current is an amplified output current of a bipolar junction transistor.
Saturation Current - (Measured in Ampere) - Saturation current is the diode leakage current density in the absence of light. It is an important parameter which differentiates one diode from another.
Voltage across Base Emitter Junction - (Measured in Volt) - The Voltage across Base Emitter Junction is the forward voltage between the base and emitter of the transistor.
Threshold Voltage - (Measured in Volt) - Threshold voltage of transistor is the minimum gate to source voltage that is needed to create a conducting path between the source and drain terminals.

STEP 1: Convert Input(s) to Base Unit

Saturation Current: 0.01 Milliampere --> 1E-05 Ampere (Check conversion here)
Voltage across Base Emitter Junction: 16.56 Volt --> 16.56 Volt No Conversion Required
Threshold Voltage: 2 Volt --> 2 Volt No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

i_c = i_s*e^(V_be/V_t) --> 1E-05*e^(16.56/2)

Evaluating ... ...

i_c = 0.039441943819803

STEP 3: Convert Result to Output's Unit

0.039441943819803 Ampere -->39.441943819803 Milliampere (Check conversion here)

FINAL ANSWER

39.441943819803 ≈ 39.44194 Milliampere <-- Collector Current

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Electronics » Amplifiers » Transistor Amplifiers » Emitter Follower » Collector Current in Active Region when Transistor Acts as Amplifier

Credits

Created by Payal Priya

Birsa Institute of Technology (BIT), Sindri

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

Verified by Prahalad Singh

Jaipur Engineering College and Research Centre (JECRC), Jaipur

Prahalad Singh has verified this Calculator and 10+ more calculators!

< 10+ Emitter Follower Calculators

Output Resistance of Emitter Follower

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

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

Saturation Current of Emitter Follower

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

Input Resistance of Emitter Follower

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

Base Resistance across Emitter follower Junction

Go Base Resistance = High Frequency Constant*Emitter Resistance

Total Emitter Resistance of Emitter Follower

Go Emitter Resistance = Base Resistance/High Frequency Constant

Output Resistance of Transistor at Intrinsic Gain

Go Finite Output Resistance = Early Voltage/Collector Current

Collector Current of Emitter Follower Transistor

Go Collector Current = Early Voltage/Finite Output Resistance

Input Resistance of Transistor Amplifier

Go Input Resistance = Amplifier Input/Input Current

Input Voltage of Emitter Follower

Go Emitter Voltage = Base Voltage-0.7

< 15 Multi Stage Transistor Amplifiers Calculators

Open Circuit Bipolar Cascode Voltage Gain

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

Output Resistance of Emitter Follower

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

Drain Resistance of Cascode Amplifier

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

Output voltage gain of MOS Cascode Amplifier

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

Collector Current in Active Region when Transistor Acts as Amplifier

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

Saturation Current of Emitter Follower

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

Equivalent Resistance of Cascode Amplifier

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

Negative Voltage Gain of Cascode Amplifier

Go Negative Voltage Gain = -(MOSFET Primary Transconductance*Resistance between Drain and Ground)

Input Resistance of Emitter Follower

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

Base Resistance across Emitter follower Junction

Go Base Resistance = High Frequency Constant*Emitter Resistance

Total Emitter Resistance of Emitter Follower

Go Emitter Resistance = Base Resistance/High Frequency Constant

Output Resistance of Transistor at Intrinsic Gain

Go Finite Output Resistance = Early Voltage/Collector Current

Collector Current of Emitter Follower Transistor

Go Collector Current = Early Voltage/Finite Output Resistance

Input Resistance of Transistor Amplifier

Go Input Resistance = Amplifier Input/Input Current

Input Voltage of Emitter Follower

Go Emitter Voltage = Base Voltage-0.7

Collector Current in Active Region when Transistor Acts as Amplifier Formula

Collector Current = Saturation Current*e^(Voltage across Base Emitter Junction/Threshold Voltage)
i_c = i_s*e^(V_be/V_t)

What is an active region?

The active region is the region in which transistors have many applications. This is also called a linear region. A transistor while in this region, acts better as an Amplifier. This region lies between saturation and cutoff. The transistor operates inactive region when the emitter junction is forward biased and the collector junction is reverse biased.

How to Calculate Collector Current in Active Region when Transistor Acts as Amplifier?

Collector Current in Active Region when Transistor Acts as Amplifier calculator uses Collector Current = Saturation Current*e^(Voltage across Base Emitter Junction/Threshold Voltage) to calculate the Collector Current, The Collector current in active region when transistor acts as amplifier is a current, which flows through the load resistor results in a large voltage drop across it. Thus a small input voltage results in a large output voltage, which shows that the transistor works as an amplifier. Collector Current is denoted by i_c symbol.

How to calculate Collector Current in Active Region when Transistor Acts as Amplifier using this online calculator? To use this online calculator for Collector Current in Active Region when Transistor Acts as Amplifier, enter Saturation Current (i_s), Voltage across Base Emitter Junction (V_be) & Threshold Voltage (V_t) and hit the calculate button. Here is how the Collector Current in Active Region when Transistor Acts as Amplifier calculation can be explained with given input values -> 39049.49 = 1E-05*e^(16.56/2).

FAQ

What is Collector Current in Active Region when Transistor Acts as Amplifier?

The Collector current in active region when transistor acts as amplifier is a current, which flows through the load resistor results in a large voltage drop across it. Thus a small input voltage results in a large output voltage, which shows that the transistor works as an amplifier and is represented as i_c = i_s*e^(V_be/V_t) or Collector Current = Saturation Current*e^(Voltage across Base Emitter Junction/Threshold Voltage). Saturation current is the diode leakage current density in the absence of light. It is an important parameter which differentiates one diode from another, The Voltage across Base Emitter Junction is the forward voltage between the base and emitter of the transistor & Threshold voltage of transistor is the minimum gate to source voltage that is needed to create a conducting path between the source and drain terminals.

How to calculate Collector Current in Active Region when Transistor Acts as Amplifier?

The Collector current in active region when transistor acts as amplifier is a current, which flows through the load resistor results in a large voltage drop across it. Thus a small input voltage results in a large output voltage, which shows that the transistor works as an amplifier is calculated using Collector Current = Saturation Current*e^(Voltage across Base Emitter Junction/Threshold Voltage). To calculate Collector Current in Active Region when Transistor Acts as Amplifier, you need Saturation Current (i_s), Voltage across Base Emitter Junction (V_be) & Threshold Voltage (V_t). With our tool, you need to enter the respective value for Saturation Current, Voltage across Base Emitter Junction & Threshold 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 Collector Current?

In this formula, Collector Current uses Saturation Current, Voltage across Base Emitter Junction & Threshold Voltage. We can use 2 other way(s) to calculate the same, which is/are as follows -

Collector Current = Early Voltage/Finite Output Resistance
Collector Current = Early Voltage/Finite Output Resistance

Home

FREE PDFs

🔍 Search