Partnered Output Coils - Free Energy

[verpies]

@MileHigh, TK and others with EE experience...

Take a look at the simple inductive Charge & Hold circuit below:
Initially, the switch S1 charges the inductor L1 up to certain current i_MAX and after that current reached,  S2 closes and S1 opens. 
After a long time, the S2 opens and discharges the remaining magnetic energy of L1 into C1.

QUESTION: How to practically substitute these switches with N-channel MOSFETs and synchronously drive them from a common point and deal with body diodes without significantly affecting the conductivity of the switched paths?

Of course, switches S1 and S2 are never both fully on at the same time, because that would short the power supply.
The body diode of the MOSFET acting in lieu of S2 would prevent the discharge of the remaining magnetic energy into C1.

[Groundloop]

Hi,

I did start to work on a practical way of switching inductance last year.
http://www.overunityresearch.com/index.php?topic=2407.0

GL.

[Void]

On the next picture is my bench power-supply. I am not sure if is still in healthy condition after so many "things" happened  during the experimentation with HV devices ( namely Ruslans coils etc.).  When I use one channel ,under some conditions (like frequency in the circuit or the voltage increase)  it influence me the second channel. The output on the second channel just is all over the place and switching and so on. I do not remember this doing before. Could be something fried inside? I understand some EMF is going in to it. But shouldn't it be a bit resistant to these sort of things? Generally,I use one diode and ferite choke on the positive lead to give it some sort of protection. Any test suggestion to make sure it works fine?  Thanks.

Hi John.K1. If you use a bench power supply to power high frequency switching circuits, such as
powering a FET/transistor driver to pulse a coil, you can get a lot of transients feeding back into the
power supply and it can damage the power supply. To test your power supply, you could hook up some
lower resistance value power resistors to each channel of the power supply and test to make sure that under a
fairly heavy current load that both the voltage regulation and current limiting of your power supply (if it has adjustable
current limiting) are working correctly or not.

In my own testing with pulsing coils on ferrite cores, it can really make the regulation circuitry in the power supply
act up, and can potentially blow components in the power supply as well if the generated transients are large. Also this acting
up of the regulation circuitry of the power supply can cause strange things to happen in your circuit due to the improperly
regulated voltage and possibly the current limiting kicking in and out. You either have to use external large value chokes on a
power supply line or both lines as well and possibly extra filtering caps, or better yet, use a battery as your supply voltage.
The battery will give you much more stable results overall, unless you are using some really good extra power supply filtering.

All the best...

[John.K1]

Thanks Void.   

[TinselKoala]

Re the switching inductors: Now we are thinking congruently. It's a poor man's Flux Compression Generator I think, and Verpies seems to be getting the idea of how to use some of the resulting pulse. So I'm also wondering if there's a way to use semiconductors for the switches in his circuit posted up above.

The basic military EMP-bomb uses explosively-pumped FCGs to generate a high-current pulse (one time!) that feeds a virtual cathode oscillator (vircator) to emit a strong pulse of RF/microwave energy that can couple into unprotected electronics in the target, destroying the electronics with overcurrent. Much of the energy in the explosive FCG-Vircator design comes from the explosion, which forces a shunt to progressively short out a coil that is precharged with magnetic flux. As the shorting shunt is forced up the coil by the shaped explosive charge, work is done against the field, compressing it, which winds up as the high current pulse to the vircator/antenna system.


@John.K1:
Yep, I have had the same troubles with my Topward PSU which is very similar to yours. I did blow some of the internal parts at one point so that neither side worked right, but was able to fix it finally once I located a schematic for it.  If you have a schematic, you will find some op-amps and some voltage references (zeners or programmable VRs that look like small transistors) that may be not working right. I wound up replacing 3 op-amps and 3 of the voltage references to get mine back to full operation.  Cost about 5 dollars in parts, but hours of work and troubleshooting. Finding the schematic was the hardest part, I finally had to send a friend to physically visit a Topward repair depot in California and have him chat up the secretary, who then snuck over to the file cabinet and made him a copy from the "top secret" service manual.