How will this weak spring go returning the pot core half to resting position in the higher frequencies in time?
Slowly. This experiment is done on single pulse-by-pulse basis. There is no quick succession of pulses as in other devices...thus there is no repetition frequency.
I see it like this:
1) First the capacitor C1 gets charged to +V
1 by momentarily pressing S
0 and C2 gets discharged by shorting it momentarily.
2) Then S
1 closes and L1 becomes energized (the pot core starts getting attracted)
3) Next, S
2 closes and S
1 opens which traps the energy in L1 (I call it the "hold phase", during which the pot core continues getting attracted)
4) Finally, S
2 opens and the energy stored in L1 (
and in the aligned domains of the potcore) is recovered to C2.
5) The voltage across C2 and C1 is compared to obtain the Out/In EM energy ratio.
6) The kinetic energy of the core is estimated somehow
The entire sequence of events listed above must happen before the core halves slam into each other.
Of course, MOSFETs should play the roles of S
1 and S
2. They should be driven by rectangular pulses of variable width.
Before ION and I design a good method of driving S
1 and S
2 from a common voltage level, the S
2 can be entirely omitted for preliminary experiments.
WARNING: I exchanged the labels C1 and C2 on the diagram above, compared to the previous diagrams, in order to better follow the sequence of events.
Also, I added the momentary manual switch S
0 for precharging C1 and supplying the entire sequence only from C1, for precise input energy measurement.
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Topic: Magnetic CARA - Proof of Concept (Read 69672 times)
