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I am not looking for a directional type limit like that of a diode, but rather one that would act like a funnel placing a limit on the amount of watts that can pass through it. I am also not looking for a fuse or a breaker. It needs to be a functional limit not a safety

2006-09-17 12:50:56 · 10 answers · asked by Anonymous in Science & Mathematics Engineering

10 answers

A rheostat is a viarable resistor is good for what u are asking, the more u vary the resistance up/down u vary the ampers(current) thus depending on where u place it on ur AC circuit u determined ur voltage atlarge.Then after proper calculations u could get a specific Resistor from an Electronic data book to fit permenently.
u know it all depends on what u want at the output.

A capacitor does not resist current it stores charges instead so that wouldn't work.
An inductor though it's a resistive load it does not resist voltage as such it's design to induce voltages to certain parts of the ckt.

2006-09-17 15:10:59 · answer #1 · answered by simply the best. 2 · 0 0

The required component is an inductor or choke.
A choke is a transformer like device wound around an iron core that saturates at the required current, thus limiting the amount of current flow.

2006-09-18 09:19:44 · answer #2 · answered by Bazza66 3 · 0 0

There are different ways to limit the wattage dissipate to a particular devices.

Like previously suggested, you can use resistor in series. But that is lossy.

If you device can take lower ac voltage, you can use step-down transformer to reduce the voltage. By reducing the voltage, you can reduce the wattage in certain case.

2006-09-18 01:10:31 · answer #3 · answered by Anonymous · 0 0

A rhostate of variable resistor

Probably going to have to design a circuit to keep the volatage stable while cutting the amperage

2006-09-17 19:57:07 · answer #4 · answered by Anonymous · 0 0

Overload protectors are available in the market. You must buy one with the correct range and set the current rating in terms of 'amp'.

However if the current exceeds the set current value it will simply disconnect your appliance.

2006-09-18 02:23:22 · answer #5 · answered by Mr. Tension 2 · 0 0

Variable resistor. It will convert the to I^2R and is the amount of heat that released before going to your circuit.

Simple and straightforward.....

2006-09-17 22:12:35 · answer #6 · answered by Mr. Logic 3 · 0 0

There are current and voltage regulators that will be variable to power output

2006-09-17 19:57:23 · answer #7 · answered by Anonymous · 0 0

a resistor or capacitor

2006-09-17 20:01:16 · answer #8 · answered by meesheekinz 2 · 1 0

inductor

2006-09-17 19:54:18 · answer #9 · answered by Anonymous · 0 0

thyristor

2006-09-17 19:57:53 · answer #10 · answered by scuzzyexsailor 1 · 0 0

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