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Author Topic: Interesting BEMF recovery circuit - Brandt-Tesla switch finally explained?  (Read 1187 times)

Offline lamare

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  • Posts: 6
​Hi all,

I have recently been looking into some of Ron Brandt's work and was particularly interested in the details of his controller as well as his "perm mag" motor, the combination of which has been claimed to be capable of achieving a COP>1.

At some point, I realized that with a couple of diodes it is possible to construct a capacitor bank, such that the capacitors discharge in parallel, but can be charged in series (when capturing BEMF). This has as result that the magnetic field in a coil can be collapsed quite a lot faster than that it has been built up, which according to Ron determines the amount of energy that can be recovered.


I've done some Spice simulations, which show that the current trought the coil indeed collapses quite a lot faster when using this cap bank circuit.


See my website for details and results:

http://tuks.nl/wiki/index.php/Main/BEMFRecoveryCircuit