Relay Switch Capacitor Experiment

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Uploaded by on Apr 1, 2009

A replication of NRGfromthevacuum´s experiment, but with the use of a relay to do the switching.

I was primarily interested to determine if the cap voltage is mainly dependent on the switching time, which varies substantially when done manually.

In this experiment, pulse on-times of 13.5 ms , 1.35 ms and 60 µs were used.

It is too early to draw conclusion that shorter pulse times than 1 ms yield in less voltage, because the relay has a limited on-time of 0.1 -0.5 ms (estimated) and might not operate properly in that region
.
Due to the fact that a battery was used, it is not possible to make statements about possible gains or losses and the set-up was inadequate to check for that as the coil was not bifilar.

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Uploader Comments (XenomorphLabs)

  • @gyulasun:

    It needs investigation if a delay between the two switches is indeed advantageous. All i can verify until now is that the switching time determines the produced cap voltage.

    I share your feeling that this setup has some potential and i will continue to experiment with it and the delay when i have maximized the spinning magnet output. Thanks for your input here, it is appreciated !

  • @gyulasun

    I indeed have considered using power MOSFETs, i have aquired ultra-fast CoolMos models and made a custom circuit for sub micro second pulse on time, BUT all MOSFET driving possibilities that i have thought of are comparatively slow.

    Also in theory electron flow and radiant flow necessitates a bi-directional dual MOSFET setup with bootstrapping or similar as well as a high voltage capability of the MOSFET because the spike reaches several hundred volts that a solid st. gate cant handle

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  • Hi, Thanks for this video. Have you considered using power MOSFETs instead of a relay? You could introduce time delay in the control path of the Gates to influence the switch-ON moment of the two FETs with respect to each other. The delay is easily done by CMOS or TTL gates.

    I think it would be important which switch is ON first and how fast the other switch comes ON after the first. Keep up testing this circuit if you have time, there may be smthng in it?

    rgds, Gyula

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