Mikey's Beast SSSG OSCILLATOR

[BroMikey]

Progress Report on Circuits

This is my updated circuit as i build it.

I have tested sections of the entire circuit and now I am
adding them together to form a switchable multi-voltage
control.

THIS CIRCUIT IS INCOMPLETE,
WAIT TILL i REMOVE THE INCOMPLETE SIGN IN A DAY OR
TWO BEFORE PROCEEDING.

You will see that I have added some switches, 3 for different
voltages and 1 to change oscillator tank trigger cap resistances.
Sometimes batteries will make the circuit squeal so switches
help to cover a wide range of ENERGIZER operations.

Also I have added the SURGE LIMITER back into the circuit
to keep a stable reading for the CROWBAR voltage shutdown.

I am also widening the diagram to fit everything as I build.




Also the same picture diagram in BLOCK FORM. This might
help some of you to understand each portion of the entire
circuit and keep it clear in your minds as the circuit grows
in size. Remember I still need to add many things.

[Dupe]

SG oscillator

Hi Mikey, You've got everything under control and well protected, if I may make a suggestion I would use a resistive potential divider network to the gate of the control thyristor offering a more stabilised reference voltage point. The resistor network would need to be reconfigured for the gate trigger parameters of course. Are you're charging different battery bank voltage combinations with this set up? Certainly a versatile system, looking forward to your final design... nice work

[BroMikey]

Hi Mikey, You've got everything under control and well protected, if I may make a suggestion I would use a resistive potential divider network to the gate of the control thyristor offering a more stabilised reference voltage point. The resistor network would need to be reconfigured for the gate trigger parameters of course. Are you're charging different battery bank voltage combinations with this set up? Certainly a versatile system, looking forward to your final design... nice work

Hey Dupe

Yes please I can use all of the help I can get. please show me.
I will redo it if I like it, please post your basic SCR and resistor
divider. I know I am rusty and lacking in many area's even
though I gettem to work.

Here is my update today. The dual switching fires at 73v,31v,15v
at the battery but the relay voltages are 10.5-11.5v with these
resistor switches.

My relays are well protected.

Whenever I put a zener on the gate the crowbar will not work.

Here is mine, please post a small diagram for me so i may try it.

And that goes for anyone else who is able to add to these simple
circuits without trying to make it fully programmable

[BroMikey]

Hi Mikey, You've got everything under control and well protected, if I may make a suggestion I would use a resistive potential divider network to the gate of the control thyristor offering a more stabilised reference voltage point. The resistor network would need to be reconfigured for the gate trigger parameters of course. Are you're charging different battery bank voltage combinations with this set up? Certainly a versatile system, looking forward to your final design... nice work

Here is some of the data on the IGT ,volts

The Gate opens at .6v and 2 ma, this is where the circuit opens up. I
Don't know what happens after it opens.

[BroMikey]

Hi Mikey, You've got everything under control and well protected, if I may make a suggestion I would use a resistive potential divider network to the gate of the control thyristor offering a more stabilised reference voltage point. The resistor network would need to be reconfigured for the gate trigger parameters of course. Are you're charging different battery bank voltage combinations with this set up? Certainly a versatile system, looking forward to your final design... nice work

Hi Dupe

here is the basic Crowbar circuit. Just down load it and alter
it the way you had in mind.

[Dupe]

Basic Crowbar Circuit

@ BroMikey
Hi have put together a circuit you can try out, just need to post the image over... have not got a clue how to send it on this site?

OK have worked out how to send a thumb nail image at least a start.

[Dupe]

@ BroMikey
This is my alternative crowbar circuit, the transistor is BC547 / BC182 and zener is 500mW details are open to experiment and a gate resistor can be included to suit device in use. two switch positioned shown for 15.2v and 12.7v

[IMG]Thyristor trig.gif[/IMG]

[BroMikey]

@ BroMikey
This is my alternative crowbar circuit, the transistor is BC547 / BC182 and zener is 500mW details are open to experiment and a gate resistor can be included to suit device in use. two switch positioned shown for 15.2v and 12.7v

[IMG]Thyristor trig.gif[/IMG]

Thanks Dupe

My crowbar gate is half cracked open sometimes if a small
battery is sulfated and rejecting the charge. The spikes
can be trouble for gates I see.

In other words the LED gives off a pre-glow
very faintly lit. The spikes will eat my gate huh?

This version seems like an improved solution.

I think this is what you meant?

I will build it soon.



Okay I am back Dupe after some tests and it is confirmed
my LED on the relay is faintly glowing and it reads .5v there.
Of course for that LED to glow at only .5v during operation
shows that spikes are getting through.

I am doing your build now and will see the difference.

Thank you

[Dupe]

Thanks Dupe

My crowbar gate is half cracked open sometimes if a small
battery is sulfated and rejecting the charge. The spikes
can be trouble for gates I see.

In other words the LED gives off a pre-glow
very faintly lit. The spikes will eat my gate huh?

This version seems like an improved solution.

I think this is what you meant?

I will build it soon.


You can possibly use a clamp suppression diode to add further protection to your circuit choose a voltage in excess of your maximum charging source voltage check their current handling capacity to match in with your designs.
My circuit should work ok for you ... I normally build on bread and use a variable PSU to finally check the trigger points etc.


Okay I am back Dupe after some tests and it is confirmed
my LED on the relay is faintly glowing and it reads .5v there.
Of course for that LED to glow at only .5v during operation
shows that spikes are getting through.

I am doing your build now and will see the difference.

Thank you

OK Mikey... should work fine, I always build my designs on bread board first before knocking up a circuit board this gives me a chance to trim values if necessary. If you have a variable PSU all the better.

[Dupe]

BroMikey's SSG

Just had a thought about your spikes!! you can get transient suppression diodes that will conduct above a given clamp voltage, might be worth looking into to add further protection. Hve a look here:-
http://www.protekdevices.com/Assets/...les/ta1001.pdf

[BroMikey]

OK Mikey... should work fine, I always build my designs on bread board first before knocking up a circuit board this gives me a chance to trim values if necessary. If you have a variable PSU all the better.

Hello DUPE

Yes I have it assembled on a bread board and O use those bread board
jumpers you can buy on ebay. It really makes circuit building fast and
easy.

On the TVS end of things. I have seen these and have some but never
thought much about using them on an SCR gate. Why not. I can always
push one down into place to give it a try.Good thinking.

And on part voltages I agree for a 12v operation the device should
at least be rated for 35v-50v max so as not to damage.


I also have number of precision variable voltage supplies plus the
constant current. Yes I test this way at first you are right.

I am now looking at your circuit design.

Then when I look around at other similar circuits it looks
to me like the small switching transistor is some sort of
regulator?

I am not sure. Or is it that the transistor opens first and then the SCR?

I will finish it tonight.thanks to you.

Mikey

[alman]

hot resistors

Mike,
Do you have issues with the 47 ohm resistor heating up HOT in your old beast circuit.

I've been playing with the CPD mod and having heat issues with any resistor that I put in series with the cap/pot and the diode before the base of the transistor. Any suggestions? I've tried a 10k pot with a .56 uf cap and a 1.5 uf cap so far.

Al

[BroMikey]

Study Guide

Here is my study guide materials for Bedini motors and solid state
oscillators. People want this guy gone. He gives away to many
secrets.

https://www.youtube.com/watch?v=faXEPvdwEXg

[BroMikey]

Mike,
Do you have issues with the 47 ohm resistor heating up HOT in your old beast circuit.

I've been playing with the CPD mod and having heat issues with any resistor that I put in series with the cap/pot and the diode before the base of the transistor. Any suggestions? I've tried a 10k pot with a .56 uf cap and a 1.5 uf cap so far.

Al

Yes I use 15 watt Ohmite stone resistors. If you run 15-16volts on the input
at 1/2 amp to 1 amp a 5 watt resistor is okay but if you turn the power
up to 2-3amps you will need higher wattages.

Now I use 220 ohm 7watt but they warm up at 5 amps so they are out
for my bigger machine coming.

I recently bought a bunch of 15-20 watt 220 ohm OHMITE blocks with the
large straps as legs as well as the 22 gauge wire legs. Also other types
of resistors exist that have axial leads and the compounds VS wire winding
run far cooler, spend the money.

I buy in bulk for the same price as you will buy 2 pieces. Look for the price break.

If they are to hot they will stink.

use these

10pcs 100 Ohm 100RΩJ 10 Watt Axial Ceramic Cement Power Resistor 10W 2823 | eBay


1 IRC 220 Ohm 10 Watt 5 Wirewound Resistor | eBay



These are my favorite ones, I asked this guy to give me a number to get
them for less money per piece and I think he let me have 20 resistors
a $2.50 unit price.

IRC PCL 15 Ceramic Cement Power Wirewound Resistor 15 Watt 220 Ohm 5 8926 NNB | eBay

[BroMikey]

4,5,6 builds going on at once Can't see the end yet.

3 crowbar controllers, 2 SSSG oscillators, transformers.

I did some scope shots the other night of the air core oscillator
and forgot to take pictures. Great big spikes.

The other oscillator with the 6 LITZ strands with go to 250volt
in a few seconds.