Bedini SSG - self sustaining

[Groundloop]

Fausto,

You can use almost ANY relay you want as long as the relays has a 5volt coil
and the coil current do not exceed 100mA. I use relays that can handle 5 amp
and has a normal open / normal closed function (3 wires). My main goal was to design
a unit that could swap batteries etc. That said, one optocoupler and a transistor
instead of the relay, and you have a higher speed switching unit. It all depends
on what you want do do. The relays themselves can also control bigger relays etc.

Groundloop.

[mscoffman]

Just to amplify what Groundloop has said. The opto/transistor
do have high bandwidth, the leds use a certain amount of power
when they are on and the output pins are insulated from one
another only by semiconductor insulation and they have some
semiconductor "on" resistance.

Relays use a certain amount of power only when they are
on, have very low bandwidth (even less at higher powers)
- this will require built in software delays, but the input and
the two output leads have 100% insulation from one another
and 0ohms when the outputs are connected.

There is form of latching relay that is turned on and off
by 50ms 5volt (or whatever) pulses. So that for very low
power operations and very low bandwidth operations, they
consume almost no power. So I think you can see that you
can have whatever low bandwidth controls that you need
with extremely low net dissipated power.

:S:MarkSCoffman

[plengo]

Today I expended Groundloop's TS with one more opto and transistor (SW7) so that I implemented the "shortting" the battery programmaticaly.

It took me a little awhile because of the obvious protoboard "bad soldering of mine" thing but all figure out and it is running right now. Now I can finally rest and wait to see if indeed the battery charges and how much it will.


And @Groundloop,

I do see your point. Off course one can replace the relay with another opto/transistor combination. How could I have not thought about that? 

I really like the multi-function of your design. Great work!


@mscoffman,

thanks for the ideas and points. All taken.

Fausto.

[plengo]

My experiment is going very well indeed. I am charging the battery with lots of problems but I am. In trying to understand why such a weird circuit that I showed before would charge the battery I started a little research and I think I found something from this forum driven by our friend Gotluc (http://www.energeticforum.com/renewable-energy/4807-no-current-polarity-flip-flop-pulse-cap-charge-circuit.html) that is presenting exactly the same behavior as mine except that I am using batteries instead of the caps only.

So, last night I changed my design a little bit to simulate what Gotluc is doing (which is basically switching the poles of the caps into other caps but never closing the loop) so to test if the battery and caps would indeed chage without closing the loop and I was surprised to see that indeed it does.

I have not read the whole thread from Gotluc but I can already say that indeed not closing the loop makes the caps charge which them I dump them in to the battery and that's is why my batteries are charging.

Fausto.

[guruji]

Plengo thanks for your experiments. Can you please post the write circuit to charge the source battery so that I can replicate?
Thanks