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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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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Can I charge and discharge a NiCd/NiMh battery at the same time?
I presume there will be opposite movements of the charged particles inside, with collision energy being exhaust as heat.
On the other hand, such a setup would probably introduce an extra noise/...
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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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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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Why does an induction motor draw more current when the load is increased?
I am aware that a coil has inductive reactance when powered by AC besides the еlectrical resistance which is typically very low.
Considering the fact that reactance is proprotional to the inductance ...
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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 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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How do you drive a high current load from a moderate current source?
If I have a power supply that can supply 5A @ 12V and I need to be able to supply an inductive load with 20+A @ 12V, how would I go about this?
I need a burst of current for about 2-5 seconds.
Will ...
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Load-line analysis derivation
I'm trying to get a better handle on the derivation where load-line analysis comes from. This is because I have a system that essentially has two different loads operating on a single diode and I'd ...
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Cascaded BJT Amplifier Load
In my first layout, with a 9.2k load I get a gain of ~55 (20mVpp in -> ~ 1.1Vpp out).
My current understand is that if I replace the resistor load with something else that presents as 9.2k (i.e. ...
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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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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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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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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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