Dynamic Power in CMOS Solution

STEP 0: Pre-Calculation Summary
Formula Used
Dynamic Power = Short-Circuit Power+Switching Power
Pdyn = Psc+Ps
This formula uses 3 Variables
Variables Used
Dynamic Power - (Measured in Watt) - The Dynamic Power is calculated during the rise and fall of the input signal. These are smaller then the dynamic power dissipation.
Short-Circuit Power - (Measured in Watt) - Short-Circuit Power is defined as the theoretical current that will run in the event of a short circuit if the protection has not yet intervened.
Switching Power - (Measured in Watt) - Switching Power is called the dynamic power because it arises from the switching of the load.
STEP 1: Convert Input(s) to Base Unit
Short-Circuit Power: 46 Milliwatt --> 0.046 Watt (Check conversion here)
Switching Power: 0.13 Milliwatt --> 0.00013 Watt (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Pdyn = Psc+Ps --> 0.046+0.00013
Evaluating ... ...
Pdyn = 0.04613
STEP 3: Convert Result to Output's Unit
0.04613 Watt -->46.13 Milliwatt (Check conversion here)
FINAL ANSWER
46.13 Milliwatt <-- Dynamic Power
(Calculation completed in 00.004 seconds)

Credits

Created by Shobhit Dimri
Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat
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17 CMOS Power Metrics Calculators

Gates on Critical Path
Go Gates on Critical Path = Duty Cycle*(Off Current*(10^Base Collector Voltage))/(Capacitance of Gate to Channel*[BoltZ]*Base Collector Voltage)
Subthreshold Leakage through OFF Transistors
Go Subthreshold Current = (CMOS Static Power/Base Collector Voltage)-(Gate Current+Contention Current+Junction Current)
Contention Current in Ratioed Circuits
Go Contention Current = (CMOS Static Power/Base Collector Voltage)-(Subthreshold Current+Gate Current+Junction Current)
Gate Leakage through Gate Dielectric
Go Gate Current = (CMOS Static Power/Base Collector Voltage)-(Subthreshold Current+Contention Current+Junction Current)
Output Switching at Load Power Consumption
Go Output Switching = Capacitive Load Power Consumption/(External Load Capacitance*Supply Voltage^2*Output Signal Frequency)
Capacitive Load Power Consumption
Go Capacitive Load Power Consumption = External Load Capacitance*Supply Voltage^2*Output Signal Frequency*Output Switching
Activity Factor
Go Activity Factor = Switching Power/(Capacitance*Base Collector Voltage^2*Frequency)
Switching Power
Go Switching Power = Activity Factor*(Capacitance*Base Collector Voltage^2*Frequency)
Power Supply Rejection Ratio
Go Power Supply Rejection Ratio = 20*log10(Input Voltage Ripple/Output Voltage Ripple)
Switching Power in CMOS
Go Switching Power = (Positive Voltage^2)*Frequency*Capacitance
Switching Energy in CMOS
Go Switching Energy in CMOS = Total Energy in CMOS-Leakage Energy in CMOS
Leakage Energy in CMOS
Go Leakage Energy in CMOS = Total Energy in CMOS-Switching Energy in CMOS
Total Energy in CMOS
Go Total Energy in CMOS = Switching Energy in CMOS+Leakage Energy in CMOS
Short-Circuit Power in CMOS
Go Short-Circuit Power = Dynamic Power-Switching Power
Dynamic Power in CMOS
Go Dynamic Power = Short-Circuit Power+Switching Power
Total Power in CMOS
Go Total Power = CMOS Static Power+Dynamic Power
Static Power in CMOS
Go CMOS Static Power = Total Power-Dynamic Power

Dynamic Power in CMOS Formula

Dynamic Power = Short-Circuit Power+Switching Power
Pdyn = Psc+Ps

What are the limitations in increasing the power supply to reduce delay?

The delay can be reduced by increasing the power supply but if we do so there will be heating effect because of excessive power. In order to compensate this we have to increase the die size which is not practical.

How to Calculate Dynamic Power in CMOS?

Dynamic Power in CMOS calculator uses Dynamic Power = Short-Circuit Power+Switching Power to calculate the Dynamic Power, The Dynamic Power in CMOS formula is calculated during the rise and fall of the input signal. These are smaller then the dynamic power dissipation. This is solely due to the energy required to charge and discharge the load capacitances. Dynamic Power is denoted by Pdyn symbol.

How to calculate Dynamic Power in CMOS using this online calculator? To use this online calculator for Dynamic Power in CMOS, enter Short-Circuit Power (Psc) & Switching Power (Ps) and hit the calculate button. Here is how the Dynamic Power in CMOS calculation can be explained with given input values -> 46130 = 0.046+0.00013.

FAQ

What is Dynamic Power in CMOS?
The Dynamic Power in CMOS formula is calculated during the rise and fall of the input signal. These are smaller then the dynamic power dissipation. This is solely due to the energy required to charge and discharge the load capacitances and is represented as Pdyn = Psc+Ps or Dynamic Power = Short-Circuit Power+Switching Power. Short-Circuit Power is defined as the theoretical current that will run in the event of a short circuit if the protection has not yet intervened & Switching Power is called the dynamic power because it arises from the switching of the load.
How to calculate Dynamic Power in CMOS?
The Dynamic Power in CMOS formula is calculated during the rise and fall of the input signal. These are smaller then the dynamic power dissipation. This is solely due to the energy required to charge and discharge the load capacitances is calculated using Dynamic Power = Short-Circuit Power+Switching Power. To calculate Dynamic Power in CMOS, you need Short-Circuit Power (Psc) & Switching Power (Ps). With our tool, you need to enter the respective value for Short-Circuit Power & Switching Power 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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