Questions tagged [energy]
Energy is defined as the amount of work that can be performed by a force, measured in joules (J). Energy is power integrated over time; power (W) is energy per second (J/s). This is a poor tag to use. Please consider if your question relates to energy as defined in physics; don't use it as a synonym for power or capacity.
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CMOS (Energy Supply of voltage) [closed]
Can someone please explain why, when \$ln\$ is transitioning from low to high, the energy supplied is \$C_{vdd}\cdot V_{dd}^2\$?
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Could a very high voltage and very low current allow a non-superconducting magnetic energy storage system?
A very low current with very high voltage can travel through high resistant wires without much loss. Could this type of current be used on magnetic energy storage without superconducting materials?
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Does reciprocity apply in appliances power consumption?
Normally, microwave ovens have a timer and a power selector. Similarly in other machines, you can control the power and the time you use that power.
Is it generally true in real life that the final ...
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Calibration of the Atmel M90E32AS Energy Metering IC
I'm working on an energy metering project featuring the Atmel M90E32AS, connected with an ESP32-S3.
From the Application Notes of the IC, I understand that it needs to be calibrated first. However, I'...
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Parts of a power cable
This is a snippet of 6kV/Single core/240 sqmm copper cable. The parts of the cable are as follows.
Stranded Copper
Semiconducting Cross-linked compound
XLPE
Semiconducting Cross-linked compound
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How to compute the energy efficiency in bits/s/watt
The energy efficiency (EE) in wireless communications is usually calculated as the ratio of data rate to power consumption: how many data (in bits per second) are delivered per consumed power (in ...
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Does minimizing stages necessarily give best outcome when designing circuit under a delay constraint?
In the context of digital design, a common situation is to have to design a circuit for minimum energy under a delay constraint. Suppose a given circuit can be implemented with various stages. Is it ...
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Energy reservoir capacitor
How to calculate the appriopriate capacitance for an energy reservoir capacitor that would serve as an alternative IC power supply in case of main power supply failure. Is there a specific formula or ...
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Need to understand the current sensor connection in this circuit
I'm working on creating a smart power meter for my home, and I found this tutorial. I want to understand each part of the circuit, and the tutorial covers everything. However, it doesn't explain why ...
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Electric potential - 2 power supplies
I'm studying among other things electrical engineering and I'm kind of in a discussion with a colleague about an 'experiment': he claims that when i measure the voltage between the + output of power ...
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Mosfet Switching Energy
How can I calculate the energy required to switch a Mosfet knowing the peak power, and the drain to source capacitance?
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Why doesn't the cross section of a material affect flux density?
I am trying to design an inductor. I have free hand of using any geometric form and ferromagnetic material.
It's my first time doing it. I studied magnetics design in college and I always thought that ...
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Time bounds for power and energy in RL and RC circuits (natural response)
I am curious about how the time bounds in power (t>=0+) and energy (t>=0) are developed in the natural response of RL and RC circuits. For the RL circuit, the natural response of the current is $...
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Are the signals differential?
I want to use this IC for a metering purpose.
Are the signals IxP/IxN & VxP/VxN differential signals?
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Energy in capacitor paradox
Recently I have been thinking about a circuits problem that caused me a lot of confusion.
First of all we know from thermodynamics that energy is conserved. I wanted to show a problem that seemed to ...
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