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Results tagged with power-electronics
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user 13363
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Cheapest way to connect ignition coil to spark plug for use in non-motoring application
Get you down the road right quick and sharpish to Fred Friendly's Car Repair Garage (it's right on the corner, you pass it every day on the way to the pub) and ask to root about in his trash bin for s …
- 15.3k
1
vote
Accepted
What is this component on the face of an analog clock?
That is a light-dependent resistor, commonly made of cadmium sulfide. When light shines on it, its resistance goes down by a significant amount, and as such these devices found use in film cameras to …
- 15.3k
1
vote
Faulty capacitor identification
It is common for the filter capacitors to fail because the diode bridge failed first. Replacing the caps will not fix the problem. You will need to remove the rectifier diodes and check them as well.
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- 15.3k
1
vote
Control power to a tungsten filament?
I recommend a variac (variable ac transformer) rated at 500 watts, This will downconvert the wall outlet voltage 120VAC to anything in the range of 0 to 120. Alternatively, to get easier control, you …
- 15.3k
3
votes
Generating practical power without an iron core, but with high RPM
the iron structure(s) inside a generator serve the purpose of minimizing flux leakage, which maximizes the utilization of the magnetic field in generating electricity. One of the ways in which they ac …
- 15.3k
0
votes
Can wireless charging become more energy efficient?
The three efficiency loss mechanisms in inductive charging are electrical resistance in the transmitting and receiving coil wires, flux leakage between the coils (this represents magnetic field lines …
- 15.3k
0
votes
Accepted
What would be the best capacitor to use for a railgun that uses a capacitor as the projectile?
There are new-technology capacitors available now that can store large amounts of energy; they are called ultracapacitors and have capacities of order ~farads.
Before you go out to buy some, however, …
- 15.3k