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rosarios
Joined: 10 May 2006
Posts: 8
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 26 May 2006 12:43 Re: inverter 12 3000w |
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Hi from built Rosario.Ho a scheme inverter 12v-3000w that he/she introduces however' this defect: if the tension and' 13v are all right everything, if and' 12v the two leds him spengono.Per to make to work him/it I put a resistance 10k among the pin 8 and mass of the ic 4013. How can I resolve the problem without twisting the scheme?
Added after 5 minutes:
dd
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rituparnasaikia
Joined: 01 Feb 2006
Posts: 31
Helped: 2
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| 26 May 2006 13:33 inverter 12 3000w |
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| Your english as well as the question is not very much clear. Please explain detail.
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artem
Joined: 22 May 2003
Posts: 1633
Helped: 90
Location: Turan
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| 26 May 2006 13:40 inverter 12 3000w |
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Your english is very difficult for me to understand .) But
as far as i understand you prevent IC 7 setting by putting resistor to ground .
Try to see what causes overload condition :
- battery current (measured on R20 by IC9)
- or no current or less than threshold current on output measured by R33 IC13 IC12 . This circuit works as - if load is enough (more than limit set by R33 ) IC 13 gives short pulses on output preventing C25 from charging and following switch of polarity of IC12 from positive to negative .
It seems that invertor wont work if no load (active ohmic resistance on output) or excessive battery current measured on R20 where schmith comparator threshold can be adjusted by resistors R14 R22 R12 and R11 .
If you want to allow more current on battery you can decrease R14 carefully and measure battery current at same time. If you need to work on less output current load - try to increase R33.
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rosarios
Joined: 10 May 2006
Posts: 8
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| 26 May 2006 15:58 Re: inverter 12 3000w |
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| Hi I am still Rosary. I am Italian and to communicate in English use a computer translator. Excuse for the difficulties' that I create you! The important one and' that succeed in understanding us! The components that you have signalled me I already had them' made a will, I have retried without any risult still. The only valid change and' this: ic4013 pin8 resistance 18k among the pin8 mass and a varying resistance between 8 and encircled massa.Il it works among 5 and 9v, among 12e 13v don't work among 10 and 11v.Questo and' makes a will with professional feeder from laboratory. If I leave everything so' it is able' to work or will I provoke' damages?
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artem
Joined: 22 May 2003
Posts: 1633
Helped: 90
Location: Turan
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| 26 May 2006 16:17 inverter 12 3000w |
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What is value of negative voltage on D7 ?
Then do following measure :
- put load (which work on 8-9 and 12 -13 ) to output
- cut wire in point E marked bold
- switch invertor ON and
- report to us whether it works or not .
If it does not work when line E is cut measure and report here following :
voltage on IC9 pin 6
voltage on IC7 pin 8
voltage on point "C" (right side of r21 )
Added after 2 minutes:
BTW, does your translator supports some poetry ?))
"...I already had them' made a will,
I have retried without any risult still
"
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rosarios
Joined: 10 May 2006
Posts: 8
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| 26 May 2006 17:34 Re: inverter 12 3000w |
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What is value of negative voltage on D7 ? it worrs 4v -
it doesn't work 0,05 +
Then do following measure :
- put load (which work on 8-9 and 12 -13 ) to output
- cut wire in point E marked bold it works well
- switch invertor ON and
- report to us whether it works or not . it worrs
If it does not work when line E is cut measure and report here following :
voltage on IC9 pin 6
voltage on IC7 pin 8 it worrs 0.005 - it doesnt' work 11 +
voltage on point "C" (right side of r21 ) tension next to the 0
Added after 2 minutes:
BTW, does your translator supports some poetry ?))
"...I already had them' made a will,
I have retried without any risult still
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artem
Joined: 22 May 2003
Posts: 1633
Helped: 90
Location: Turan
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| 26 May 2006 18:20 inverter 12 3000w |
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rosarios, i think it will be diffcult to speak through translator . But anyway i once will try to repeate my question :
Does invertor work, when you did cut E line ???
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rosarios
Joined: 10 May 2006
Posts: 8
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| 26 May 2006 19:20 Re: inverter 12 3000w |
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An only thing not me and' chiara:Qual'e' the function is? Since' the contact is or attached or not the functionality' it doesn't change.. same thing for the interrupter on/off the function doesn't change
I have checked ic 13 there and' the waveform while to the exit of the d18 not there and'; it reappears on the ic12 pin 6 a lot of weak. Checked the components have not found that defective! Last domanda:qual'e' the function of the ic 12 and 13? Of protection or to stabilize the circuit electric current erogante?
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artem
Joined: 22 May 2003
Posts: 1633
Helped: 90
Location: Turan
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| 26 May 2006 20:46 inverter 12 3000w |
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rosarios, yes that is the point i asked you to check .
IC12 and IC13 are used to "Put invertor OFF when NO LOAD" .
LOAD or MINIMUM LOAD CURRENT is set by R33 and rest of circuitity IC13 Tr2 R34 R42 and 230V coil impedance....
Easy way to Decrease MINIMMUM LOAD CURRENT is :
D17 = ZPD5.1
OR
R33 >= 0.2 Ohm
Added after 2 minutes:
rosarios , please find somebody to translate from italian to english - it is very hard for me to understand you .
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ehico16
Joined: 15 Jun 2006
Posts: 43
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| 19 Aug 2006 14:23 inverter 12 3000w |
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| R20 is having 4 wire connection is there resistor like that, ? do I do it
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megaady
Joined: 24 Aug 2006
Posts: 5
Helped: 1
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| 25 Aug 2006 13:11 Re: inverter 12 3000w |
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| yes, that's right
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ultrabrains
Joined: 14 Feb 2007
Posts: 113
Helped: 8
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| 08 Jun 2007 22:00 Re: inverter 12 3000w |
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which component?
http://images.elektroda.net/7_1181332340.gif
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duycuong289
Joined: 11 Jun 2007
Posts: 6
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| 07 Jul 2007 11:23 inverter 12 3000w |
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| my inverter : input 48Vdc ,but output only 15Vac,how to increase output amplitude ,help me,thank very much!
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ultrabrains
Joined: 14 Feb 2007
Posts: 113
Helped: 8
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| 20 Aug 2007 11:10 inverter 12 3000w |
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| what oscillating circuit are you using to genrate your clock pulse? does it have a feedback?
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dibaa
Joined: 08 Oct 2007
Posts: 3
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| 13 Nov 2007 23:35 Re: inverter 12 3000w |
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| good job!
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zawmintun1
Joined: 21 Nov 2007
Posts: 43
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| 15 May 2008 12:08 inverter 12 3000w |
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| Grete Job
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BSS.EN
Joined: 10 Jun 2008
Posts: 3
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| 21 Jun 2008 14:35 inverter 12 3000w |
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| Thank you very much.
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jirapong
Joined: 13 Aug 2008
Posts: 2
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| 13 Aug 2008 13:39 inverter 12 3000w |
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| Thank you
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