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Old 10th November 2005, 05:54 AM   #1
bowdown is offline bowdown  Australia
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Join Date: Feb 2004
Location: Perth
Question blown 12v to 240v inverter help

Hi i am just wandering if someone can help me diagnose a problem with an inverter of my friends. He accidentally pluged it into 24V instead of 12V, says it smoked up instantly. I have replaced the fets on the heat sink and the unit turns on but there is no 240v output. The indicator on the fron says "Ac volts on" but nothing on the output. It is a Selectronic pure sine wave inverter model no LD200-12. Please help if you can.


Regards

Bowdown
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Old 14th November 2005, 08:05 AM   #2
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please my friend your explanation is alittle bit small though personally I have not worked on that model, but it could have been vital if you explained about the switching ic's beeing used [if pulse width].
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Old 15th November 2005, 12:21 AM   #3
bowdown is offline bowdown  Australia
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Sema jama habari yako?What part of Kenya you from? Thanx bud i will check about what ic's they use and get back to you in a few days.

Regards

Bowdown
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Old 24th November 2005, 11:20 AM   #4
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Habari yangu mzuri, my dear please i have been waiting for your explanations but you seem to have gotten lost. I have had an experience of about 8years working on several types of inverters hence I have developed several systems for fault diagnosis soon I would provide a circuit on this site thanks.
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Old 24th November 2005, 11:38 AM   #5
bowdown is offline bowdown  Australia
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Join Date: Feb 2004
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Pole rafiki yangu, i have been very busy lately and have not had a chance to continue with the repair of that unit. What type of information would you like? Let me know and i will see if i can answer all your questions.

Regards

Bowdown
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