I was wondering if it is possible Set up a circuit where you use a AC sine wave at the resonant frequency of the circuit and limit the current from the AC source to maybe the low mA range. Then you use a DC source across the inductor to provide the high current. So the whole idea is to use the resonance of the circuit so as to lower the opposition from the inductor to the DC source current. The DC source would be at the same voltage as the AC source.
The whole reason for this idea is if you wanted to pulse a high inductance coil to a specific current level quickly, you would be met with a huge reactance limiting the current flow in a certain amount time ,ex... 1A-1us on a 100uH coil requires 100V. A more extreme example is 1A-1ns on a 1 H coil requires 1GV( 1,000,000,000 V).
The reason for DC is so the current is always only going in one direction unlike in AC resonance where the current is alternating. That's why you would limit the AC current
The reason for this is I know with resonance you can get a inductor to rise in current and thus the magnetic field to rise much faster than when it is not. The problem though is the current is always going back and forth and so the magnetic field is going north, south, north and so on. But how do you get the benefit of faster rise times but current in only one direction?
If someone knows how then that would be great. I have been wondering about this for a while now.
The whole reason for this idea is if you wanted to pulse a high inductance coil to a specific current level quickly, you would be met with a huge reactance limiting the current flow in a certain amount time ,ex... 1A-1us on a 100uH coil requires 100V. A more extreme example is 1A-1ns on a 1 H coil requires 1GV( 1,000,000,000 V).
The reason for DC is so the current is always only going in one direction unlike in AC resonance where the current is alternating. That's why you would limit the AC current
The reason for this is I know with resonance you can get a inductor to rise in current and thus the magnetic field to rise much faster than when it is not. The problem though is the current is always going back and forth and so the magnetic field is going north, south, north and so on. But how do you get the benefit of faster rise times but current in only one direction?
If someone knows how then that would be great. I have been wondering about this for a while now.
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