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## Credits

Birsa Institute of Technology (BIT), Sindri
Payal Priya has created this Calculator and 500+ more calculators!
Jaipur Engineering College and Research Centre (JECRC), Jaipur
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## Overdrive voltage when MOSFET acts as an amplifier Solution

STEP 0: Pre-Calculation Summary
Formula Used
effective_voltage_or_overdrive_voltage = modulus(Voltage across the oxide)-Threshold voltage
Vov = modulus(VGS)-VT
This formula uses 2 Functions, 2 Variables
Functions Used
mod - Modulo function, mod(dividend, divisor)
modulus - Modulus of number, modulus
Variables Used
Voltage across the oxide - Voltage across the oxide due to the charge at the oxide-semiconductor interface and the third term is due to the charge density in the oxide. (Measured in Volt)
Threshold voltage - 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. It is an important factor to maintain power efficiency. (Measured in Volt)
STEP 1: Convert Input(s) to Base Unit
Voltage across the oxide: 2 Volt --> 2 Volt No Conversion Required
Threshold voltage: 50 Volt --> 50 Volt No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Vov = modulus(VGS)-VT --> modulus(2)-50
Evaluating ... ...
Vov = -48
STEP 3: Convert Result to Output's Unit
-48 Volt --> No Conversion Required
-48 Volt <-- Effective voltage or overdrive voltage
(Calculation completed in 00.015 seconds)

## < 10+ Basic Principles Calculators

Voltage across gas oxide when MOSFET acts as an amplifier
voltage_across_the_oxide = Threshold voltage+((sqrt(2*MOSFET transconductance parameter*Load Resistance*Supply Voltage+1)-1))/MOSFET transconductance parameter*Load Resistance Go
Voltage across collector-emitter when MOSFET acts as an amplifier
voltage_across_collector_emitter = Supply Voltage-Load Resistance*Saturation current*e^(Voltage across the base–emitter junction/Threshold voltage) Go
Output voltage when MOSFET acts as an amplifier
output_voltage = Supply Voltage-1/2*MOSFET transconductance parameter*Load Resistance*(Voltage across the oxide-Threshold voltage)^2 Go
Output voltage when the transistor is biased
output_voltage = Supply Voltage-1/2*MOSFET transconductance parameter*Load Resistance*(Voltage across the oxide-Threshold voltage)^2 Go
Collector current in active region when transistor acts as an amplifier
collector_current = Saturation current*e^(Voltage across the base–emitter junction/Threshold voltage) Go
Drain current when transistor acts as an amplifier
drain_current = 1/2*MOSFET transconductance parameter*(Voltage across the oxide-Threshold voltage)^2 Go
Overdrive voltage when MOSFET acts as an amplifier
effective_voltage_or_overdrive_voltage = modulus(Voltage across the oxide)-Threshold voltage Go
Output Voltage of the voltage amplifier
output_voltage_of_amplifier = Supply Voltage-Drain current*Load Resistance Go
Output Voltage of BJT Amplifier
output_voltage = Supply Voltage-Drain current of BJT*Load Resistance Go
Bias voltage of the transistor
bias_voltage = Voltage across the oxide+Input voltage Go

### Overdrive voltage when MOSFET acts as an amplifier Formula

effective_voltage_or_overdrive_voltage = modulus(Voltage across the oxide)-Threshold voltage
Vov = modulus(VGS)-VT

## How MOSFET acts as an amplifier?

A small change in gate voltage produces a large change in drain current as in JFET. This fact makes MOSFET capable of raising the strength of a weak signal; thus acting as an amplifier. During the positive half-cycle of the signal, the positive voltage on the gate increases and produces the enhancement-mode.

## How to Calculate Overdrive voltage when MOSFET acts as an amplifier?

Overdrive voltage when MOSFET acts as an amplifier calculator uses effective_voltage_or_overdrive_voltage = modulus(Voltage across the oxide)-Threshold voltage to calculate the Effective voltage or overdrive voltage, The Overdrive voltage when MOSFET acts as an amplifier is the excess of the voltage of oxide over threshold voltage and is the quantity that determines the charge in the channel. Effective voltage or overdrive voltage and is denoted by Vov symbol.

How to calculate Overdrive voltage when MOSFET acts as an amplifier using this online calculator? To use this online calculator for Overdrive voltage when MOSFET acts as an amplifier, enter Voltage across the oxide (VGS) and Threshold voltage (VT) and hit the calculate button. Here is how the Overdrive voltage when MOSFET acts as an amplifier calculation can be explained with given input values -> -48 = modulus(2)-50.

### FAQ

What is Overdrive voltage when MOSFET acts as an amplifier?
The Overdrive voltage when MOSFET acts as an amplifier is the excess of the voltage of oxide over threshold voltage and is the quantity that determines the charge in the channel and is represented as Vov = modulus(VGS)-VT or effective_voltage_or_overdrive_voltage = modulus(Voltage across the oxide)-Threshold voltage. Voltage across the oxide due to the charge at the oxide-semiconductor interface and the third term is due to the charge density in the oxide and 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. It is an important factor to maintain power efficiency.
How to calculate Overdrive voltage when MOSFET acts as an amplifier?
The Overdrive voltage when MOSFET acts as an amplifier is the excess of the voltage of oxide over threshold voltage and is the quantity that determines the charge in the channel is calculated using effective_voltage_or_overdrive_voltage = modulus(Voltage across the oxide)-Threshold voltage. To calculate Overdrive voltage when MOSFET acts as an amplifier, you need Voltage across the oxide (VGS) and Threshold voltage (VT). With our tool, you need to enter the respective value for Voltage across the oxide and 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 Effective voltage or overdrive voltage?
In this formula, Effective voltage or overdrive voltage uses Voltage across the oxide and Threshold voltage. We can use 10 other way(s) to calculate the same, which is/are as follows -
• collector_current = Saturation current*e^(Voltage across the base–emitter junction/Threshold voltage)
• output_voltage_of_amplifier = Supply Voltage-Drain current*Load Resistance
• output_voltage = Supply Voltage-Drain current of BJT*Load Resistance
• drain_current = 1/2*MOSFET transconductance parameter*(Voltage across the oxide-Threshold voltage)^2
• output_voltage = Supply Voltage-1/2*MOSFET transconductance parameter*Load Resistance*(Voltage across the oxide-Threshold voltage)^2
• voltage_across_the_oxide = Threshold voltage+((sqrt(2*MOSFET transconductance parameter*Load Resistance*Supply Voltage+1)-1))/MOSFET transconductance parameter*Load Resistance
• effective_voltage_or_overdrive_voltage = modulus(Voltage across the oxide)-Threshold voltage
• voltage_across_collector_emitter = Supply Voltage-Load Resistance*Saturation current*e^(Voltage across the base–emitter junction/Threshold voltage)
• output_voltage = Supply Voltage-1/2*MOSFET transconductance parameter*Load Resistance*(Voltage across the oxide-Threshold voltage)^2
• bias_voltage = Voltage across the oxide+Input voltage
Where is the Overdrive voltage when MOSFET acts as an amplifier calculator used?
Among many, Overdrive voltage when MOSFET acts as an amplifier calculator is widely used in real life applications like {FormulaUses}. Here are few more real life examples -
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