Questions tagged [loss]
The loss tag has no usage guidance.
105
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Modeling a short 10mm wire for RF
This is related to another question of mine looking for parasitics which need to be added to prevent oscillations in simulations .
How should I model a short 10nH wire (say AWG 20 with 0.8 mm diameter ...
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Impact of Low Power Factor on Loss Generation in PMSMs
I am focusing on the losses generation in PMSMs and still have some doubts about the role of a low power factor.
For the analysis, I consider a three-phase PMSM controlled with Field Oriented Control (...
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Why not always connect cells in series to increase voltage in solar component setups? [closed]
I am designing a solar system which I can take to an Indio village deep into the Amazon forest, and thinking about some principles. I am talking about a 2, 3, or even 6 kW system. I see a big problem ...
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PMSM - RMS phase current as a function of Id and Iq
Assuming to have a 3-phase PMSM driven with a balanced system of currents with sinusoidal shape, is there a way to write the RMS phase current as a function of Id and Iq?
I want to use the RMS phase ...
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549
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PCB as heat sink - how to calculate the area
I got an Inverter of 6 MOSFETs and I need to estimate the PCB area for keeping the junction temperature below 100 °C.
The losses per FET are 0.21 W which leads to a max. Rthja = 143 K/W (junction to ...
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Power loss and heating in a diode
I'm quite confused about diodes heating when conducting electricity.
I have "P1000 10A10" diode. It's supposedly rated for 10A forward current.
When I've attached my lab power supply set it ...
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How to understand the "zero source impedance" in LISN insertion loss calibration
Figure 1: 50 uH LISN Diagram
Figure 2: Input impedance of the LISN varies with frequency from 5Ω at 9 kHz to 50Ω at 30 MHz
In Page 27 of Calibration and use of artificial mains networks and absorbed ...
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Does insertion loss include return loss?
Does insertion loss include return loss? If we take a 3-ports circulator, does insertion loss from port 1 to port 2 consist of return loss of port 1, a power that leaks throug port 3 and power ...
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Why is electricity transferred at high voltage
I know higher voltage is used because of these two formulas:
P = V x I
P = I^2 x R
But if we substitute I = V / R in the first formula we get
P = V^2 / R
Shouldn’t this mean increasing the voltage ...
- 103
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Why does this metallic magnetic core have so little core losses up until 100s of kHz?
I have a small signal transformer with values as in the below schematic (the simulate button works well to see the AC response). The values are measured and the simulated AC response agrees sort of ...
- 22.5k
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Thermal Loss calculation of IGBT
I want to compute losses of an IGBT using datasheet information given by manufacturer. I want to calculate losses at 90 °C junction temperature while the information provided on datasheet is only for ...
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Which MOSFET for a 120W boost converter?
IRFP250N vs IRF3415
I'm making a boost converter which converts 12 V to 100 V maximum. The maximum input current is 15 A. Power of the converter is 120 W. I will drive the MOSFET with a TC4429.
At ...
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597
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Resistor losses in heat
I am trying to understand the power lost via heat (friction) from a resistor as opposed to what flows through and is available for the next component in series, and how I estimate this.
I have read a ...
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Power losses in Wire given end load and voltage at load
I'm trying to work out the efficiency of power transmission using a small LVDC system. I'm distributing 60VDC from a point and running it over quite a large cable (3-pair cable, 16AWG up to 500m one-...
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Design calculations for LVDC grid
I'm looking to use 60 V to create a small LVDC grid to power up some small loads - 12/24/48 V maximum. For the purpose of this question I will assume 12 V only loads.
60 VDC will be the power supplied ...
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