All Questions
36
questions
2
votes
0
answers
58
views
Typical load examples for RL and RC series and parallel circuits
I have already learned theoretical description of RL and RC circuits and their behavior. But now with a benefit of hindsight I have never truly learned about typical real world loads that have similar ...
- 121
2
votes
3
answers
101
views
Utility of a load resistance for measuring another resistance
In this paper they need to measure the value of an unknown resistance RS, whose value is the output signal of a sensor. However, instead of measuring this resistance directly with a multimeter, they ...
- 23
0
votes
1
answer
128
views
I am simulating an equivalent model of a laser in LTspice shown below. I am supposed to plot the power at node Pout versus the input current
The issue is I am not able to plot the power without adding the load resistor which is not specified in the equivalent circuit.
Is there any other way to plot the power? If not, then what value of ...
- 47
0
votes
0
answers
34
views
Implementation of a 24 hour variable resistive load fluctuation
I am implementing a DC microgrid with a variable resistive load variation of 24-hours, based on a load profile.
I have implemented it in MATLAB through a variable resistor and a 1-D block to provide ...
- 1
0
votes
1
answer
203
views
Use wirewound resistor as load
I want to use an array of ceramic wirewound resistor in series and parallel as the load of an 80W boost converter with the output of 400volts dc. Is it suitable to use 8 numbers of 10W resistors as ...
- 735
1
vote
0
answers
75
views
Can I connect low-power resistors to achieve a high-power resistive load?
I've designed an 80 W 400 V PFC boost converter and I want to test it with resistive load. but I couldn't find a low-cost high power (20 to 80 watts) resistor in the range of 2k to 10k ohm. Is there ...
- 735
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, ...
- 11
-1
votes
2
answers
887
views
Surface temperature of a load resistor
How can I calculate the surface temperature of a load resistor?
I'm given requirements that I may need a 1W 500 ohm resistor.
During test fixture or product debugging the resistor is almost always is ...
0
votes
3
answers
874
views
High-Side N-Channel MOSFET Driving
Is this an acceptable way to drive a mosfet? In this case, I'm trying to turn on a high current load, but in case the load is changing it's resistance/impedance, or in the possibility it's ...
1
vote
2
answers
4k
views
How to find the load resistor's resistance?
Use max power transfer theorem to calculate the value of RL for the following circuit.
I've done the Thevenin's equivalent circuit but from there I don't know how to find the \$R_{Load}\$. I need it ...
- 13
1
vote
1
answer
96
views
load resistor - my setup is valid?
i want to test my output current of transistor 2N3906. I have two questions.
Is my setup valid to measure the max load of the (2N3906) transistor? One plug of multimeter is on leftmost pin of PNP ...
- 39
0
votes
1
answer
57
views
is is possible to drop voltage without knowing a components amperage
I am new to circuits/electrical stuff
Correct me if i am wrong.
if i have an led (2.1V / 0.02A) and if i give it 0.02A it will only take 2.1V or if i give it 2.1V it will take 0.02A
Ohms law (\$I=\...
0
votes
1
answer
122
views
I do not understand this sentence: "Resistor is used to stop loading the transistor"
In this circuit, resistor R4 (just before the transistor) is used to stop loading the transistor.
I do not understand the part "resistor used to stop loading the transistor".
0
votes
1
answer
81
views
Why is the load a resistive load, not an inductive load when I measure the current and voltage of the transmission line?
Question:
Measure the transmission line of a substation. The relation between voltage and current is that the current lags the voltage for 180 degrees, so now I want to ask
Which part of ...
- 541
1
vote
1
answer
2k
views
How to calculate maximum power when value of load resistance is unknown?
Once again same circuit and same voltage source / current source and resistances. However now I need to calculate the maximum power that is consumed by the RL. How do I do that, and most importantly ...
- 423