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Dynamic Power Consumption Formula

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Dynamic Power Consumption due to the charge and discharge of the interconnect and input gate capacitance during a signal transition. Check FAQs

P dyn = α \cdot C sw \cdot f \cdot {V s}^{2}

P_dyn - Dynamic Power Consumption?α - Switching Activity Factor?C_sw - Switched Capacitance?f - Frequency?V_s - Supply Voltage?

Dynamic Power Consumption Example

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With units

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Here is how the Dynamic Power Consumption equation looks like with Values.

Here is how the Dynamic Power Consumption equation looks like with Units.

Here is how the Dynamic Power Consumption equation looks like.

0.0272 = 0.18 \cdot 1.25 \cdot 16 \cdot {2.75}^{2}

0.0272kW = 0.18 \cdot 1.25F \cdot 16Hz \cdot {2.75V}^{2}

0.0272 = 0.18 \cdot 1.25 \cdot 16 \cdot {2.75}^{2}

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Dynamic Power Consumption Solution

Follow our step by step solution on how to calculate Dynamic Power Consumption?

FIRST Step Consider the formula

P dyn = α \cdot C sw \cdot f \cdot {V s}^{2}

Next Step Substitute values of Variables

∴

P dyn = 0.18 \cdot 1.25F \cdot 16Hz \cdot {2.75V}^{2}

Next Step Prepare to Evaluate

∴

P dyn = 0.18 \cdot 1.25 \cdot 16 \cdot {2.75}^{2}

Next Step Evaluate

∴

P dyn = 27.225W

Next Step Convert to Output's Unit

∴

P dyn = 0.027225kW

LAST Step Rounding Answer

∴

P dyn = 0.0272kW

Dynamic Power Consumption Formula Elements

Variables

Dynamic Power Consumption

Dynamic Power Consumption due to the charge and discharge of the interconnect and input gate capacitance during a signal transition.

Symbol: P_dyn

Measurement: PowerUnit: kW

Note: Value can be positive or negative.

Formulas to find Dynamic Power Consumption

Switching Activity Factor

Switching Activity Factor (A) of a circuit node is the probability the given node will change its state from 1 to 0 or vice versa at a given clock tick.

Symbol: α

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Switching Activity Factor

Switched Capacitance

Switched Capacitance is energizing a capacitor bank as well as de-energizing a capacitor bank.

Symbol: C_sw

Measurement: CapacitanceUnit: F

Note: Value can be positive or negative.

Formulas to find Switched Capacitance

Frequency

Frequency is more operations within a given amount of time.

Symbol: f

Measurement: FrequencyUnit: Hz

Note: Value can be positive or negative.

Formulas to find Frequency

Supply Voltage

Supply Voltage is maximum voltage that can be supplied between the positive supply (VCC) and negative supply (VEE) pins without causing characteristics degradation or damage to the internal circuit.

Symbol: V_s

Measurement: Electric PotentialUnit: V

Note: Value can be positive or negative.

Formulas to find Supply Voltage

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How to Evaluate Dynamic Power Consumption?

Dynamic Power Consumption evaluator uses Dynamic Power Consumption = Switching Activity Factor*Switched Capacitance*Frequency*Supply Voltage^2 to evaluate the Dynamic Power Consumption, Dynamic Power Consumption the dissipated power due to the charge and discharge of the interconnect and input gate capacitance during a signal transition. Dynamic Power Consumption is denoted by P_dyn symbol.

How to evaluate Dynamic Power Consumption using this online evaluator? To use this online evaluator for Dynamic Power Consumption, enter Switching Activity Factor (α), Switched Capacitance (C_sw), Frequency (f) & Supply Voltage (V_s) and hit the calculate button.

FAQs on Dynamic Power Consumption

What is the formula to find Dynamic Power Consumption?

The formula of Dynamic Power Consumption is expressed as Dynamic Power Consumption = Switching Activity Factor*Switched Capacitance*Frequency*Supply Voltage^2. Here is an example- 2.7E-5 = 0.18*1.25*16*2.75^2.

How to calculate Dynamic Power Consumption?

With Switching Activity Factor (α), Switched Capacitance (C_sw), Frequency (f) & Supply Voltage (V_s) we can find Dynamic Power Consumption using the formula - Dynamic Power Consumption = Switching Activity Factor*Switched Capacitance*Frequency*Supply Voltage^2.

Can the Dynamic Power Consumption be negative?

Yes, the Dynamic Power Consumption, measured in Power can be negative.

Which unit is used to measure Dynamic Power Consumption?

Dynamic Power Consumption is usually measured using the Kilowatt[kW] for Power. Watt[kW], Milliwatt[kW], Microwatt[kW] are the few other units in which Dynamic Power Consumption can be measured.

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Dynamic Power Consumption Formula

Dynamic Power Consumption Example

Dynamic Power Consumption Solution

Dynamic Power Consumption Formula Elements

Other formulas in Performance Metrics category

How to Evaluate Dynamic Power Consumption?

FAQs on Dynamic Power Consumption

Variable Name