Use for the Tesla Switch

[John_K]

Batt Schmacker Solar Tesla Switch

Hi All,

Here's a sneak peek of where Bit's and I are up to with the Tesla Switch we've been working on. This video shows the Tesla Switch in solar mode and the difference between regular solar charging and Tesla Switch charging.

The PIC fully automates the charging sequence and is able to charge up 4 batteries, whilst tracking the solar input to determine the best charging mode.

This is an amazing charger that not only makes the best use of the solar panel, but also rejuvenates the batteries at the same time.

YouTube - Batt Schmacker Solar TS

A full demonstration of all the functionality of the Batt Schmacker Tesla Switch will be held at the Renaissance Free Energy Conference in July.

Renaissance Charge July 2011 Free Energy Conference

Thanks again to Bit's for all his help


John K.

[Curnow]

Acronyms

Thanks Guys,
Now I have a red face. Didn't even think of Mr Google. Sorry.
Here is another link for acronyms. Acronym Geek - Largest Internet Database of Acronyms

Cheers
Dennis

[Kempis]

Yes, thats kinda the point. LOL it has to have a load. In the above case it was batteries being charged.

Cheers
Matt

@Matt
Excellent!!!

seems like that you have a winner.

Thanks for the reply

Kempis

[Matthew Jones]

@Matt
Compliments for the progress that you have achieved.
I'd like to know if the tests are done under load.
Thanks for sharing.
Kempis

Yes, thats kinda the point. LOL it has to have a load. In the above case it was batteries being charged.

Cheers
Matt

[ewizard]

G'Day Gang,
I'm new around here and get a bit frustrated when I can't work out what the acronyms mean. Can someone please tell me what FWBR is?
Also is it possible to have a listing in FAQ's of acronyms used so silly questions like his can be avoided.

Cheers
Dennis

A Google search for "electronic acronyms" returns almost 1900 results so I'm sure you can find some answers that way. Here is one list although it didn't have FWBR :Table of Acronyms
It's plain text format and does have quite a few so an easy save and search file for you.

[Kempis]

Load

I just wanted to update on my schematic that I posted above.

I have been charging a separate bank batteries now for the last 5 days. I have been watching the voltages in my batteries. 3 times now I have charged the other bank of batteries as full as they'll get in there current rather poor state and all 3 times my batteries in the TS have growth in overall voltage.

Its not much. In fact usually after an 8 hour run at what ever frequency, the average growth is about .05 each time per battery, but its energy in the BLACK not the RED.

So I am pretty tickled right. If I didn't have to go to work this morning I would start opening the beers. but...

I have another computer (Parallax Propeller) that I am trying to learn the code for. It has alot of capability as far Data logging and the like. So I am trying to work out way to start collecting the overall performance of everything so that I can show the total gain in energy. Right now its kinda hard because I am pulsing the charge batteries some times and just regular charging at other times.
So I got to work all that out and I'll get back with ya guys.


Matt

@Matt
Compliments for the progress that you have achieved.
I'd like to know if the tests are done under load.
Thanks for sharing.

Kempis

[Bit's-n-Bytes]

G'Day Gang,
I'm new around here and get a bit frustrated when I can't work out what the acronyms mean. Can someone please tell me what FWBR is?
Also is it possible to have a listing in FAQ's of acronyms used so silly questions like his can be avoided.

Cheers
Dennis

Hi Dennis, That would be Full Wave Bridge Rectifier. Not sure if there is such a listing.

Welcome,

Bit's

[Curnow]

Fwbr??

G'Day Gang,
I'm new around here and get a bit frustrated when I can't work out what the acronyms mean. Can someone please tell me what FWBR is?
Also is it possible to have a listing in FAQ's of acronyms used so silly questions like his can be avoided.

Cheers
Dennis

[Matthew Jones]

Good News!

I just wanted to update on my schematic that I posted above.

I have been charging a separate bank batteries now for the last 5 days. I have been watching the voltages in my batteries. 3 times now I have charged the other bank of batteries as full as they'll get in there current rather poor state and all 3 times my batteries in the TS have growth in overall voltage.

Its not much. In fact usually after an 8 hour run at what ever frequency, the average growth is about .05 each time per battery, but its energy in the BLACK not the RED.

So I am pretty tickled right. If I didn't have to go to work this morning I would start opening the beers. but...

I have another computer (Parallax Propeller) that I am trying to learn the code for. It has alot of capability as far Data logging and the like. So I am trying to work out way to start collecting the overall performance of everything so that I can show the total gain in energy. Right now its kinda hard because I am pulsing the charge batteries some times and just regular charging at other times.
So I got to work all that out and I'll get back with ya guys.


Matt

[genessc]

Doh! what'd I miss... hit me in email at [email protected].

Gene

Me too...

I deleted my response.... like nothing ever happened LOL


John K.

[John_K]

Gotta love our admins...

LOL
Matt

Me too...

I deleted my response.... like nothing ever happened LOL


John K.

[Matthew Jones]

Gotta love our admins...

LOL
Matt

[Matthew Jones]

My batteries are 115 amp hour Marine deep cycles but they have a cold cranking amp rating on them. I am not sure if the 2000 amp hour batteries are full or not. They seem to not be in good shape but I am working on it.
I am kinda thinking about using some big caterpillar batteries (1500 cca) and seeing what they can do, but I gotta save some pennies up for them. I think an auto battery might work better.

I'll measure the inductance (If my meter is big enough) and add it to this thread.

Matt

Cool Matt, Thanks for the additional info. What size did you note the batteries you are using at in terms of Ah? Are they also the 2000aH batteries?

I think there are maybe two things to consider, the large batteries will take a long time to run down but at the same time you need the large batteries to be able to deliver a large instantaneous current to the powered switch. I don't have any big Ah batteries like that. I have several old auto batteries and 6 or so of the 7Ah Gel Cells. I have two old 6V gold cart batteries but they are in bad shape and don't hold a charge. They were donated to me by a pal.

Are you able to measure the current pulse size during the 1hz on time versus the 1khz on time? I would expect the amount of instant current to decrease with the shorter On times...

I will probably use a trifilar 18awg stator as the "transformer" and I can add or remove R60 rod to increase/decrease the inductance of it. The resistance is about 2ohms per strand... higher than what you're looking at which is about .2ohms per 80ft strand of 14awg. I drew out the switching using the typical bedini mjl21194 and I think I have that slotted in properly.

Once I build it I'll let you know what I see. My results will be limited by what I have available... One other question...are you able to measure the inductance of the windings?

Thanks again Matt.
Gene

[genessc]

Cool Matt, Thanks for the additional info. What size did you note the batteries you are using at in terms of Ah? Are they also the 2000aH batteries?

I think there are maybe two things to consider, the large batteries will take a long time to run down but at the same time you need the large batteries to be able to deliver a large instantaneous current to the powered switch. I don't have any big Ah batteries like that. I have several old auto batteries and 6 or so of the 7Ah Gel Cells. I have two old 6V gold cart batteries but they are in bad shape and don't hold a charge. They were donated to me by a pal.

Are you able to measure the current pulse size during the 1hz on time versus the 1khz on time? I would expect the amount of instant current to decrease with the shorter On times...

I will probably use a trifilar 18awg stator as the "transformer" and I can add or remove R60 rod to increase/decrease the inductance of it. The resistance is about 2ohms per strand... higher than what you're looking at which is about .2ohms per 80ft strand of 14awg. I drew out the switching using the typical bedini mjl21194 and I think I have that slotted in properly.

Once I build it I'll let you know what I see. My results will be limited by what I have available... One other question...are you able to measure the inductance of the windings?

Thanks again Matt.
Gene

I use 2 wires for each winding on the transformer. So 6 six pieces of wire total.

I don't have any off time between switching. I haven't found a difference between using and not using offtime.

I have varied the frequency alot during testing. Around 100 hz (both switch's fire 1 time per hertz) delivers the most amperage. Around 1 khz delivers a nice spiking effect. Just play around you'll see the difference.

You could probably use a smaller transformer if you have one. And wire for that matter. I want to be able to put all my batteries on mine eventually and see if I can pull a 2-3 kw load off it.
Just make sure your output wire is hair longer than your input so your voltage stays up after you rectify. You could even wind it for 120vac. Or use a 120vac to 12-14 vdc tranformer. That would be up to you.

It works good. I have steady running a charging setup (for other batteries) since Saturday. I charged 6, 2000 amp hour trojan 6v batteries from a golf cart. My voltages in the batteries that I am using in the switch have only gone down and average of about .10 per battery.
So....It works pretty good.

Matt

[Matthew Jones]

I use 2 wires for each winding on the transformer. So 6 six pieces of wire total.

I don't have any off time between switching. I haven't found a difference between using and not using offtime.

I have varied the frequency alot during testing. Around 100 hz (both switch's fire 1 time per hertz) delivers the most amperage. Around 1 khz delivers a nice spiking effect. Just play around you'll see the difference.

You could probably use a smaller transformer if you have one. And wire for that matter. I want to be able to put all my batteries on mine eventually and see if I can pull a 2-3 kw load off it.
Just make sure your output wire is hair longer than your input so your voltage stays up after you rectify. You could even wind it for 120vac. Or use a 120vac to 12-14 vdc tranformer. That would be up to you.

It works good. I have steady running a charging setup (for other batteries) since Saturday. I charged 6, 2000 amp hour trojan 6v batteries from a golf cart. My voltages in the batteries that I am using in the switch have only gone down and average of about .10 per battery.
So....It works pretty good.

Matt