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kivdenn
Nobel Prize Winner
Uganda
535 Posts |
 Posted - Apr 18 2012 : 11:38:02 AM
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Hi all I have DC-AC inverter that Aaron Cake helped me build using CD4047 and CD4025 ICs and it works very well.I have tried to upload it but it has failed.
However I want to use the same circuit to charge my battery because when i open commercial inverters I see they dont have extra components to accomodate the charging apart from the relay switches. it seems they charge through the same mosfets and the same transformer, how is this achieved? Any help is appreciated.Thanks |
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audioguru
Nobel Prize Winner
Canada
4218 Posts |
Posted - Apr 18 2012 : 9:52:27 PM
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A relay is used to disconnect the transformer from the inverter and connect its high voltage winding to the mains. The relay also connects the transformer's low voltage winding to a rectifier and battery charger circuit.
My electricity is very reliable and I don't go camping so I have never used an inverter.
Inverters are very inexpensive so if I needed one I would just buy one, not design and make one. |
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kivdenn
Nobel Prize Winner
Uganda
535 Posts |
Posted - Apr 19 2012 : 03:37:43 AM
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| I have tried to disconnect power to the oscillator and powered the secondary winding of the transformer (220VAC) with grid power. To my surprise, the fets dint blow but when I measured the voltage at the DC input cables it is between 8.5v to 9v. I think this is because the primary winding of the transformer is an 8.5V-0-8.5V center tapped. If so how can I make it to around 15V so that my 12V battery get fully charged? Thanks for any help. Dennis |
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JUAN DELA CRUZ
Mad Scientist
Philippines
476 Posts |
Posted - Apr 28 2012 : 11:19:04 AM
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. .hi Dennis. .
Well, its been a long time . . =)
I thought you'd already use the same transformer for your inverter to charge the battery?
As far as I remember you also uploaded a schematic diagram showing how a relay do the trick. . .
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juan dela cruz
Penniless INVENTOR |
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kivdenn
Nobel Prize Winner
Uganda
535 Posts |
Posted - May 01 2012 : 01:21:43 AM
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| Yes man, but my problem is that with this 8.5v-0-8.5v primary wound transformer it is just not possible because the maximum charging voltage is 9V. How can I boost this to at least 13V? Thanks |
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Mikel
New Member
1 Posts |
Posted - May 31 2012 : 12:17:59 PM
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Hi Audioguro,
Where can i download or get your 500 - 1000 watts inverter circuit diagram using FETs.
Thanks in advance,
MikeL (sanmlight@yahoo.com) |
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koenton
Apprentece
USA
17 Posts |
Posted - Jun 16 2012 : 9:55:46 PM
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quote:
Originally posted by Mikel
Hi Audioguro,
Where can i download or get your 500 - 1000 watts inverter circuit diagram using FETs.
Thanks in advance,
MikeL (sanmlight@yahoo.com)
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koenton
Apprentece
USA
17 Posts |
Posted - Jun 16 2012 : 10:03:32 PM
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Ki Michel
I am trying to find a 18v 500ma transformer for a jump start battery charger,the transformer went bad in my charger, do you know where I might buy one? Thanks for any info. Will in Al. |
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pebe
Nobel Prize Winner
United Kingdom
1078 Posts |
Posted - Jun 21 2012 : 05:51:43 AM
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| Try Ebay. There are hundreds of them! |
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pebe
Nobel Prize Winner
United Kingdom
1078 Posts |
Posted - Oct 17 2012 : 12:39:38 PM
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| Whatever are you talking about? |
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audioguru
Nobel Prize Winner
Canada
4218 Posts |
Posted - Oct 18 2012 : 7:48:00 PM
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| I think Liza is using an on-line translator that works very poorly. |
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olayinka07
New Member
1 Posts |
Posted - Nov 28 2013 : 05:29:04 AM
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| In order to use your inverter to charge your battery you must consider root2 factor during ur winding i.e transformer, i design my inverter and my battry is fullly charge with my inverter |
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Using same inverter circuit to charge battery
