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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Understanding Energy consumption - 3-phase Power Meter - Active (forward, reverse) and Apparent [duplicate]
I'm looking at 3-phase power data from a machine using a Fluke monitor. I've got 'Energy Analyze Plus' software which then calculates lots of interesting things and I'm trying to understand what I ...
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Designing boost converter for a supercapacitor source and LED load
I have a 2.7 V 100 F supercap, that would equal 364.50 J of energy based on E = 1/2CV^2. If my load is a series of 4 LEDs with a stack forward voltage of 12 V and forward current of 3 A that would ...
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Relationship between RMS-current and energy stored in a solenoid
Regarding the formula for energy stored in the magnetic field of a solenoid (U=1/2LI^2), I presume that the RMS value for an alternating current could be used for the I-value. Is this correct?
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How do you understand the kWh that the power company charges you for?
I really didn't know how to phrase this question. But here are the details.
First I understand the simple 10 x 100 W for 1 hour is 1 kWh.
But what I want to know is at what time interval does the ...
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What is the technical parameter details of Genus Bidirectional microcontroller based ABT Energy meter ( 3Ph 4 wire)? Please someone help me out
I am unable to figure out the different parameters of Genus Bidirectional ABT Energy meter. I am working for the installation of SEM meters for the feeders in substation. I know about the energy ...
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Why do capacitors have less energy density than batteries?
The basic operating principle of a battery is, in order to charge it, the electrons are removed from cathode and moved to anode by applying voltage. And to discharge, the electrons move from cathode ...
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Boost Converter - Coil energy transfer into Capacitor - Help needed!
I am trying to design my own boost converter and so am learning about coils.
Let’s consider this example:
The switch of our boost converter has just opened, there was 100 mA flowing though the coil, ...
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"To Gap, or Not to Gap" Inductor/XFMR - Energy POV
This post/question is coming from a question I asked within the comments section of here:
How to calculate air gap in flyback transformer?
The great answer given talks about his solution to the ...
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The two capacitors are in series but positive end of one plate is connected to positive end of the other
Like the title says, my task is to find the initial voltage across the terminals. The two capacitors are in Series with positive end of one plate connected to that of another.
The given information ...
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Find suitable charging voltage for capacitor based on energy and time required for discharging
We need to calculate the charging voltage required to dissipate a certain amount of energy via R-Load.
The problem will be as follows:
If we need to dissipate 400 J through the R-Load in a time period ...
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Exceeding max RPM of wind turbine [closed]
I have a wind turbine that reaches its max output power at 1000 RPM, and I want to know if there's any problem if I make it go faster than that (e.g. around 1250 RPM).
I have a TESUP Yuzo. You can ...
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How much transmission power increase is added by an undriven element identical to a simple dipole antenna 1/4 wavelength away?
These wonderful old videos helped me understand how antennas work.
https://m.youtube.com/watch?v=md7GjQQ2YA0
The explanation for making antenna transmission unidirectional relies on using an undriven ...
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DALI protocol - D4i. How to access to memory bank DTR0, DTR1 at byte level using C code?
I'm currently stuck using DALI protocol with D4i drivers. I want to access the memory bank of one driver and read the energy parameters.
I know the opcode to read memory locations is 0xC5, since the ...
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ADE7953 voltage input
I am currently designing a power measuring board that incorporates ADE7953 and ESP-32 microcontroller, however although i have read the Datasheet document for ADE7953 and searched online forums I am ...
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Energy consumption after removing a part from a PCB
Does removing the buzzer chip from a PCB reduce the energy the PCB uses? Is it save to remove the buzzer?
It's an FMQ.
