i would like to add a cooling fan to this. where should i put it???? and what voltage to use???
mrmetal60 1 year ago
@mrmetal60
go with the chassis the aluminum sheet (only if it's needed?- I don't think so)
PTranCypress 1 year ago
Awesome guys !!!! Cant Wait To See The Parts List.
Comment removed
sparktastic1 1 year ago
@sparktastic1
It's cheap! One can try to "see for yourselves".
@PTranCypress,
I went to your website and looked at your GTI diagram and parts list, and this thing seems too simple to work!
It kinda looks like a battery discharger. It uses the higher AC voltage to 'load down' the battery and discharge it.?.
If this thing actually works, it's dumping the battery's power into the grid.
If the heat sink isn't getting very hot, where is that power going? Into the grid? :)
IF this actually worked, a 220v version would have a 100vdc max limit.?.
Xringer 1 year ago
@Xringer
US 220V does not works. On that part list Other countries? don't know!
@PTranCypress
I was wondering about the 50v limit. I was thinking it had something to do with the line voltage.
IF the 50v DC limit is related to the 115vac line voltage, then a plain single phase 220vac version should work.
Providing the parts were rated for the higher voltages, the DC limit would be double.?.
Too simple to work? - Refer to the next question.
Discharge AC- You totally wrong! On the principle then the previous Q is Irrelevant.
Heat sink is not very Hot? HOW DO YOU KNOW IT is or it's is not? You have not tried? - It is.
I have no idea if the heat sink is hot or not, but I did see this on the website.
"Theoretically, the design has 100% efficiency. The only lost is the heat (equivalent to a 3w night light bulb?)"
That would seem to indicate a 'warm' heat sink.. Or, did I mis-read?
Cheers,
Rich
YES = (No mis-read)
Looking at the circuit, it appears the the Hot side of the 120 AC line can be switched (triac) onto the DC input (solar panels).
This means that someone outdoors could put her finger on the +14VDC from the solar panel, and feel 120VAC flowing down to her toes on the grass..
I think this design needs an isolation transformer..
Utility company only allows up to (168V?) as I recall. Not sure.
The limitation of the sign is AMP not volt. have not tested to see how high it goes.
When We work on the RIIG the similar design busted at about 160V - For safe I say 50 ...... (50+110=160)
Transformer; don't works well.
Why is that? If a 1:1 transformer were used to isolate the hot side of the AC,
that could reduce the shock hazard (relative to earth ground).
Is there no gate voltage limitation on the Triacs?
at that design --->fuse burned
I got some time to trace the current flow, and it looks like the diodes only allow the triacs to turn on and conduct current in one direction only.
(120 hz Positive pluses will be present @ left side of cap).
when I look at the function of the diodes, they seem to be making the triacs function like diodes.
Humm, the output wave form looks like it might be the same as a regular full-wave bridge rectifier..
If that's true, you could cut the cost of this thing way down..
Yes but NO NO NO big NO.
The Bridge rectifiers do not allow reverse bias.
So, your rig will allow backwards current flow from the battery.
That's why you used bi-directional triacs.
Since it's wired like a battery charger with the battery installed backwards, you get backwards current from the battery to the grid.?.
It seems like the AC pulse voltage and the battery voltage will be added together.
That higher voltage will be fed back onto the grid.. Limited by the size of the cap..?.
The cap is a resistance in series with both voltage sources.
You are correct!
I have talked to many, many but you are the first one who crack the code.
Th Cap has other functionality to smooth the AC curve as well.
Very Congratulation
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i would like to add a cooling fan to this. where should i put it???? and what voltage to use???
mrmetal60 1 year ago
@mrmetal60
go with the chassis the aluminum sheet (only if it's needed?- I don't think so)
PTranCypress 1 year ago
Awesome guys !!!! Cant Wait To See The Parts List.
mrmetal60 1 year ago
Comment removed
sparktastic1 1 year ago
@sparktastic1
It's cheap! One can try to "see for yourselves".
PTranCypress 1 year ago
@PTranCypress,
I went to your website and looked at your GTI diagram and parts list, and this thing seems too simple to work!
It kinda looks like a battery discharger. It uses the higher AC voltage to 'load down' the battery and discharge it.?.
If this thing actually works, it's dumping the battery's power into the grid.
If the heat sink isn't getting very hot, where is that power going? Into the grid? :)
IF this actually worked, a 220v version would have a 100vdc max limit.?.
Xringer 1 year ago
@Xringer
US 220V does not works. On that part list Other countries? don't know!
PTranCypress 1 year ago
@PTranCypress
I was wondering about the 50v limit. I was thinking it had something to do with the line voltage.
IF the 50v DC limit is related to the 115vac line voltage, then a plain single phase 220vac version should work.
Providing the parts were rated for the higher voltages, the DC limit would be double.?.
Xringer 1 year ago
@Xringer
Too simple to work? - Refer to the next question.
Discharge AC- You totally wrong! On the principle then the previous Q is Irrelevant.
Heat sink is not very Hot? HOW DO YOU KNOW IT is or it's is not? You have not tried? - It is.
PTranCypress 1 year ago
@PTranCypress
I have no idea if the heat sink is hot or not, but I did see this on the website.
"Theoretically, the design has 100% efficiency. The only lost is the heat (equivalent to a 3w night light bulb?)"
That would seem to indicate a 'warm' heat sink.. Or, did I mis-read?
Cheers,
Rich
Xringer 1 year ago
@Xringer
YES = (No mis-read)
PTranCypress 1 year ago
@PTranCypress
Looking at the circuit, it appears the the Hot side of the 120 AC line can be switched (triac) onto the DC input (solar panels).
This means that someone outdoors could put her finger on the +14VDC from the solar panel, and feel 120VAC flowing down to her toes on the grass..
I think this design needs an isolation transformer..
Xringer 1 year ago
@Xringer
Utility company only allows up to (168V?) as I recall. Not sure.
The limitation of the sign is AMP not volt. have not tested to see how high it goes.
When We work on the RIIG the similar design busted at about 160V - For safe I say 50 ...... (50+110=160)
PTranCypress 1 year ago
@Xringer
Transformer; don't works well.
PTranCypress 1 year ago
@PTranCypress
Why is that? If a 1:1 transformer were used to isolate the hot side of the AC,
that could reduce the shock hazard (relative to earth ground).
Is there no gate voltage limitation on the Triacs?
Xringer 1 year ago
@Xringer
at that design --->fuse burned
PTranCypress 1 year ago
@PTranCypress
I got some time to trace the current flow, and it looks like the diodes only allow the triacs to turn on and conduct current in one direction only.
(120 hz Positive pluses will be present @ left side of cap).
when I look at the function of the diodes, they seem to be making the triacs function like diodes.
Humm, the output wave form looks like it might be the same as a regular full-wave bridge rectifier..
If that's true, you could cut the cost of this thing way down..
Xringer 1 year ago
@Xringer
Yes but NO NO NO big NO.
The Bridge rectifiers do not allow reverse bias.
PTranCypress 1 year ago
@PTranCypress
So, your rig will allow backwards current flow from the battery.
That's why you used bi-directional triacs.
Since it's wired like a battery charger with the battery installed backwards, you get backwards current from the battery to the grid.?.
It seems like the AC pulse voltage and the battery voltage will be added together.
That higher voltage will be fed back onto the grid.. Limited by the size of the cap..?.
The cap is a resistance in series with both voltage sources.
Xringer 1 year ago
@Xringer
You are correct!
I have talked to many, many but you are the first one who crack the code.
Th Cap has other functionality to smooth the AC curve as well.
Very Congratulation
PTranCypress 1 year ago