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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.

18 votes
2 answers
43k views

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 ...
S.s.'s user avatar
  • 2,780
1 vote
2 answers
668 views

Different design in relay load connections

(I know, relay are drawn in the wrong way, NO contacts should be in serie with load, I'll fix it ASAP) When I have to build a board to switch many devices (mains powered), I always use a single "...
Axeman's user avatar
  • 3,508
10 votes
2 answers
1k views

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 ...
s3c's user avatar
  • 2,525
2 votes
1 answer
3k views

FEM: How to calculate impedance in stator circuit for loaded generator

I am modeling a synchronous generator and in the stator circuit consisting of 3 phases at the alternator output, I have resistances and inductances of the end windings. Thus I have a 3D approximation ...
yCalleecharan's user avatar
-1 votes
1 answer
228 views

Circuit for switching higher load using transitor with signal being 300 Hz PWM

EDIT: DO NOT even think about using the naive example of a circuit to switch three phase. As someone rightly pointed out this is a complex issue and will almost certainly result in burnt finger or ...
Paul Sullivan's user avatar
2 votes
4 answers
3k views

Hand crank DC generator - a simple dummy load that won't burn out?

I'm working on a project that allows a user to crank a hand generator while current and voltage sensors measure the output. After the user finishes cranking, software displays information about how ...
Alan Christopher Thomas's user avatar
8 votes
2 answers
14k views

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 ...
Everyone's user avatar
  • 3,011
2 votes
2 answers
570 views

What loading capacitor do I use for my crystal?

I am using this crystal (the 7.3728 MHz variant). The datasheet specifies a 5pF to 55pF load capacitance; is this really so? I was under the impression that most quartz crystals had an optimal ...
Thomas O's user avatar
  • 31.9k

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