Activity Factor Calculator

✖Switching Power is called the dynamic power because it arises from the switching of the load.ⓘ Switching Power [P_s]			+10% -10%
✖Capacitance is the ratio of the amount of electric charge stored on a conductor to a difference in electric potential.ⓘ Capacitance [C]			+10% -10%
✖Base Collector Voltage is a crucial parameter in transistor biasing. It refers to the voltage difference between the base and collector terminals of the transistor when it is in its active state.ⓘ Base Collector Voltage [V_bc]			+10% -10%
✖Frequency refers to the number of occurrences of a periodic event per time and is measured in cycles/second.ⓘ Frequency [f]			+10% -10%

✖The Activity factor is defined as the load capacitance which is charged and stores energy during 3/16 of all input transitions. This fraction is called the activity factor or alpha.ⓘ Activity Factor [α]

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Activity Factor Solution

STEP 0: Pre-Calculation Summary

Formula Used

Activity Factor = Switching Power/(Capacitance*Base Collector Voltage^2*Frequency)
α = P_s/(C*V_bc^2*f)
This formula uses 5 Variables

Variables Used

Activity Factor - The Activity factor is defined as the load capacitance which is charged and stores energy during 3/16 of all input transitions. This fraction is called the activity factor or alpha.
Switching Power - (Measured in Watt) - Switching Power is called the dynamic power because it arises from the switching of the load.
Capacitance - (Measured in Farad) - Capacitance is the ratio of the amount of electric charge stored on a conductor to a difference in electric potential.
Base Collector Voltage - (Measured in Volt) - Base Collector Voltage is a crucial parameter in transistor biasing. It refers to the voltage difference between the base and collector terminals of the transistor when it is in its active state.
Frequency - (Measured in Hertz) - Frequency refers to the number of occurrences of a periodic event per time and is measured in cycles/second.

STEP 1: Convert Input(s) to Base Unit

Switching Power: 0.13 Milliwatt --> 0.00013 Watt (Check conversion here)
Capacitance: 4.9 Microfarad --> 4.9E-06 Farad (Check conversion here)
Base Collector Voltage: 2.02 Volt --> 2.02 Volt No Conversion Required
Frequency: 4 Hertz --> 4 Hertz No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

α = P_s/(C*V_bc^2*f) --> 0.00013/(4.9E-06*2.02^2*4)

Evaluating ... ...

α = 1.62549089825127

STEP 3: Convert Result to Output's Unit

1.62549089825127 --> No Conversion Required

FINAL ANSWER

1.62549089825127 ≈ 1.625491 <-- Activity Factor

(Calculation completed in 00.020 seconds)

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Credits

Created by Shobhit Dimri

Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat

Shobhit Dimri has created this Calculator and 900+ more calculators!

Verified by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

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

< CMOS Power Metrics Calculators

Activity Factor

LaTeX Go Activity Factor = Switching Power/(Capacitance*Base Collector Voltage^2*Frequency)

Switching Power

LaTeX Go Switching Power = Activity Factor*(Capacitance*Base Collector Voltage^2*Frequency)

Short-Circuit Power in CMOS

LaTeX Go Short-Circuit Power = Dynamic Power-Switching Power

Dynamic Power in CMOS

LaTeX Go Dynamic Power = Short-Circuit Power+Switching Power

Activity Factor Formula

LaTeX Go

Activity Factor = Switching Power/(Capacitance*Base Collector Voltage^2*Frequency)
α = P_s/(C*V_bc^2*f)

What is the range of activity factor?

The activity factor is the probability that the circuit node transitions from 0 to 1, because that is the only time the circuit consumes power. A clock has an activity factor of F = 1 because it rises and falls every cycle. Most data has a maximum activity factor of 0.5
because it transitions only once each cycle. Truly random data has an activity factor of 0.25 because it transitions every other cycle.

How to Calculate Activity Factor?

Activity Factor calculator uses Activity Factor = Switching Power/(Capacitance*Base Collector Voltage^2*Frequency) to calculate the Activity Factor, The Activity factor formula is defined as the load capacitance which is charged and stores energy during 3/16 of all input transitions. This fraction is called the activity factor or alpha. Activity Factor is denoted by α symbol.

How to calculate Activity Factor using this online calculator? To use this online calculator for Activity Factor, enter Switching Power (P_s), Capacitance (C), Base Collector Voltage (V_bc) & Frequency (f) and hit the calculate button. Here is how the Activity Factor calculation can be explained with given input values -> 623.9384 = 0.00013/(4.9E-06*2.02^2*4).

FAQ

What is Activity Factor?

The Activity factor formula is defined as the load capacitance which is charged and stores energy during 3/16 of all input transitions. This fraction is called the activity factor or alpha and is represented as α = P_s/(C*V_bc^2*f) or Activity Factor = Switching Power/(Capacitance*Base Collector Voltage^2*Frequency). Switching Power is called the dynamic power because it arises from the switching of the load, Capacitance is the ratio of the amount of electric charge stored on a conductor to a difference in electric potential, Base Collector Voltage is a crucial parameter in transistor biasing. It refers to the voltage difference between the base and collector terminals of the transistor when it is in its active state & Frequency refers to the number of occurrences of a periodic event per time and is measured in cycles/second.

How to calculate Activity Factor?

The Activity factor formula is defined as the load capacitance which is charged and stores energy during 3/16 of all input transitions. This fraction is called the activity factor or alpha is calculated using Activity Factor = Switching Power/(Capacitance*Base Collector Voltage^2*Frequency). To calculate Activity Factor, you need Switching Power (P_s), Capacitance (C), Base Collector Voltage (V_bc) & Frequency (f). With our tool, you need to enter the respective value for Switching Power, Capacitance, Base Collector Voltage & Frequency and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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