Questions tagged [load]
An electrical load is an electrical component or portion of a circuit that consumes electric power. This is opposed to a power source, such as a battery or generator, which produces power.
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Choosing TRIAC snubber resistor for multi-purpose switching
I'm designing a circuit to switch a 240V AC load and haven't done a lot with AC power control before. I'm planning to use a Fairchild MC3043-M optically coupled TRIAC driver along with a BT138-600 NXP ...
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Constant current, constant power and constant impedance loads
Ive been looking for information on constant power, constant current and constant impedance/resistance loads, there's some information about the constant current loads, but very little that really ...
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Capacitor exploded - why?
Recently I had an explosion on my desk. A 220uF 25V electrolytic capacitor just blown up shortly after attaching a load.
The high-level connection was:
Phocos CA08 (solar charger controller) -> 12V-3....
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What is a load resistor?
I am not able to understand what a load resistor is and how does it relate with a load.
Can anyone explain how the load resistor works and how is it different from the general resistor.
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Using TP4056 module to charge battery while load remains connected
I need a circuit that utilizes the tp4056 breakout board to power a NodeMCU ESP like so:
tp4056 USB port connected: 18650 battery charging and NodeMCU running of USB
tp4056 USB port not connected: ...
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What is capacitive loading? (Intuitive understanding)
I have read about capacitive loading, but what does it actually mean intuitively?
I just asked this question so as to get an intuitive answer and also know what should I understand when one says that ...
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Proper ways to disconnect ICs during low power states to avoid parasitic/backfeed supply
I’m working on a low-power battery-based AVR-based project that integrates a few different devices including a neopixel strip and an Adafruit pixie. When the overall device is quiescent, I’d like it ...
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Is this normal Buck Regulator behaviour?
I recently got around to trying out buck regulators, my results weren't what I was expecting though. For one the ripple voltage seems a little high to me, It's about 800mV with no load and goes up to ...
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how to select capacitor for a crystal oscillator
Here is a 32 MHz crystal from one of TI's reference design
The BOM list defines the crystal as
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Can simple DC/DC linear regulators be used in parallel?
Can linear regulators such as the L7805CV (Rated at 5V output, 1A max) be used in parallel? I need to create 5V from 12V, but I need more than 1A, so a single regulator won't do. Can they just be ...
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Trying to determine the output of a RC-filter with load
I have a low pass filter like this:
simulate this circuit – Schematic created using CircuitLab
\$V_{\text{out}}\$ is measured right after \$R_1\$, which I suppose means that it is measured ...
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How to calculate suitable dummy load for a power-supply?
A beginner question - feel free to shoot me down
I'm looking to modify a retired AT SMPS to drive my ham-radio. This is to be achieved by tying all the +12V wires together so the maximum amperage may ...
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Help needed optimising simple current limiting circuit
I have been experimenting with simulating current limiting circuits. I am trying to limit current to ~500mA given a fixed 4.8V source. I have started using a circuit like the one found on this ...
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How can I calculate the inductance of the primary of a transformer given a specific load on the secondary?
Inductance in the primary of a transformer decreases as the load on the secondary increases. How can I calculate the inductance of the primary coil? What if it was step up or one to one ratio?
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Why use asymmetrical capacitor values for crystal?
Are there any circumstances where you would want asymetrical load capacitors on a crystal? I came across this schematic in the documentation for an NXP UART. It looks just wrong to me. Can anyone tell ...
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