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Questions tagged [iv-curve]

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0 votes
0 answers
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Discrepancy in Diode Simulation Results between LTspice and Standard Test Conditions [closed]

I'm currently working on simulating diodes in LTspice and have noticed a discrepancy between the simulation results and standard test conditions (1000 W/m2, 25 degrees Celsius. The results have been ...
Mohamed Haj hamido's user avatar
3 votes
2 answers
1k views

What does the slope of an IV plot for a RC circuit represent?

So this is the circuit I am analyzing, a simple charging and discharging of a 100 µF capacitor: Just out of curiosity, I ran the simulation, hit the switch to charge the capacitor and took the ...
polimorphism's user avatar
0 votes
1 answer
56 views

IV curves of solar cells in parallel and series

When 2 solar cells are in parallel, is it that the final IV curve is the simple addition of Currents (for same voltage) of both individual IV curves ? My main doubt is what happens in 2nd and 4th ...
Nikhil Kumar's user avatar
0 votes
2 answers
82 views

What is voltage in I-V curve of a solar cell?

I-V curve of a solar cell is given for a given irradiance and temperature. Given a constant irradiance and temperature, why is the voltage changing in an I-V curve? Is the voltage something that we ...
Nikhil Kumar's user avatar
0 votes
2 answers
148 views

IV curve arithmetic - reference request

When playing around with electrical concepts in my head, I realized that the IV characteristic of any combination of elements, in series or in parallel, can be computed by simply adding the IV curves ...
KKZiomek's user avatar
  • 141
3 votes
3 answers
431 views

Compute diode model parameters from IV curve

I'm working on a project using some 5mm through-hole LEDs that I purchased. I want to simulate my circuit in LTspice before soldering it. However, none of the built-in LEDs in LTspice are close to the ...
Wu Yongzheng's user avatar
0 votes
5 answers
2k views

Output characteristics of a BJT

While plotting the output characteristics of a CE configuration, the graph between VCE and IC, it shows that when VCE=0,IC=0 My doubt is whether VCE=0 means we are shorting collector and emitter or ...
Aami's user avatar
  • 109
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0 answers
44 views

PMOS + resistor \$I_{DS} - V_{DS}\$ curve

I'm trying to plot the \$I_{DS} - V_{DS}\$ graph for a PMOS and a resistor. I'm getting this so far: Weird thing is, what I should get (based on my course) should be something like : How come the ...
c.leblanc's user avatar
  • 339
0 votes
2 answers
34 views

How to draw the curve of the charge Qc

How to draw the curve of the charge Qc as a function of time for an RC circuit, whose capacitor is initially charged and without source, when closing the tap
Blanca Prieto's user avatar
1 vote
1 answer
126 views

Is there anywhere I can download BJT Transistor I-V data?

Is there anywhere I can download some current-voltage data for a bipolar junction transistor? (It doesn't matter that much which one.) To explain further, for a simple BJT circuit we have the ...
user3728501's user avatar
0 votes
1 answer
62 views

How to account for additional series resistance of SMU for characterising solar cells?

I have been building a source-measure unit based on a design similar to the DC2591A. I unfortunately cannot share the design, but largely it replicates the DC2591A using slightly different components ...
Tiaan Stals's user avatar
0 votes
1 answer
1k views

V-I Tester (aka ASA or Octopus or curve tracer)

I want to build a simple V-I tester and based on this article (or this) I did this easy circuit: R1 = 560Ω R2 = 100Ω R3 = 1kΩ where R1 and R2 is a voltage divider to set the \$V_{(DUT+V_{R_3})}=1VAC\$...
Antonio's user avatar
  • 1,646
1 vote
2 answers
346 views

IV curve has non zero current in open circuit condition

I have an IV measurement program running in LabVIEW, where I measure the IV curve of a photovoltaic module using a programmable electronic load from a quick backward sweep (from Voc to Isc.) I have a ...
Basant's user avatar
  • 11
1 vote
1 answer
46 views

PV operation points due to load changes

I couldn't find anywhere what happens to the operation point of a PV cell, when, a resistance (load) connected straight up its output, changes (step) from one value to another. With other words, ...
Chris's user avatar
  • 11
1 vote
3 answers
1k views

Doesn't a curve tracer harm modern circuits?

I've read about a thing called a "curve tracer" that you can use to compare known good circuits with bad circuits. It consists of an AC voltage with a resistor that sweeps from -5 to +5V (or ...
Fusseldieb's user avatar

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