SSG modes COP

[nilrehob]

A few weeks ago I finally figured out the common standard ordinary mainstream textbook theory what makes the Tesla-switch so interesting.
Then yesterday I watched a presentation by Peter Lindemann where he mentioned the Bedini SSG generator-mode.
After some calculations I came up with the following COP for some different SSG-modes:

Std SSG: 50%
Gen Mode: 66%
Ossie/TS Mode: 75%
Mixed Mode: 80%

A short presentation of the theory:
https://www.youtube.com/watch?v=fo1RsJ0ym2Y

A previous video comparing Std SSG vs Ossie/TS Mode in a real life experiment:
https://www.youtube.com/watch?v=_eh5pQpNsGM

/Hob

[Dave45]

Thank you for sharing,
very interesting circuits.
I too am working on simple circuits to find the principle we are looking for.
All the best
dave

[MarkE]

Thank you for sharing,
very interesting circuits.
I too am working on simple circuits to find the principle we are looking for.
All the best
dave

In the left hand circuit the top diode just wastes power and serves no useful purpose.  Ditto the bottom diode in the right hand circuit.

In the left hand circuit, the bottom diode is reverse biased, IE off when the NPN transistor is on.  No current flows through the right hand battery.  When the NPN transistor turns off, the coil discharges through the diode and the right hand battery.  You can make the circuit much more efficient by putting a driver in front of the NPN transistor to switch it off quickly and changing the diode to either a Schottky type or a synchronous rectifier.

[TinselKoala]

I wonder what "COP" you get in MHOP mode.


Meanwhile, Dave and Mark try this little circuit. You'll get a "kick" out of analyzing it, I'm sure. It's the circuit of the Perpendupetulum, and runs off bright room lighting onto a solar cell.

[MarkE]

I don't know why C2 is so large.  Otherwise it looks like a lot of other harvesting devices.