Micro Control Inverter Power 600: No 230V Output, Firing 30A Fuses, 12V Battery Connection

Question

Inverter micro power 600 inverter under the battery 12 v. I connected the drill 500 in and as I began to drill it fired 3 fuses 30 A, I bought new and mounted, after turning on the inverter a green diode is burning but there is no 230 V in the socket. What can be the reason in the manual that...

voytalo · Accepted Answer

Transmitting transistors are most often used in this type of devices.

szafarz · Accepted Answer

Probably the one who will be different from others after checking the meter. Besides, I would not take the 600W inscription seriously, maybe as 600VA, but also cautiously.

voytalo · Accepted Answer

Yes, with such a connection on the meter you should have some value in mV (forward voltage), as you swap the ends of the meter in places, you should have infinite (no transition). You check without desoldering.

voytalo · Accepted Answer

These two IRF 450s will be for exchange. I do not understand the entry l 780 chn 950, show a picture of this element.

tomek1975r · Answer

Now only which transistor?

tomek1975r · Answer

Do I have to desolder the transistor to check it with a meter? There are about 23 of them and it would be a bit of a job to check. There are two same transistors h.mps A 44 9 CC 60 and as I checked the meter is exactly what I marked in the picture is poorly conducts the current because the meter does not squeak on this transistor just displays 10200

voytalo · Answer

It's probably not this one. One of these 8 large screws bolted to the housing. Give them a symbol, then I will tell you how to check with the meter.

tomek1975r · Answer

FTP 18 N06 YJG2 5138MH

voytalo · Answer

Looking at him from the front (from the side of the subtitles), between the second and third legs, you should have an ohmmeter in one direction, and no in the other direction. If you have a diode tester in the meter, then the plus of the meter to the 3, minus to the 2, you should display the value in mV. Replacing the meter's leads should show you 1, or infinity.

tomek1975r · Answer

I have such a meter

voytalo · Answer

Then set it to the diode symbol and do as I wrote.

tomek1975r · Answer

The meter is set to 200 OMY and shows 1.8 on the meter. After desoldering one transistor and checking it, it showed me 500 OMY but I switched the voltmeter to 2000 ohms. For me, all transistors are efficient, I am looking for further.

szafarz · Answer

The diodes and transistors should be checked at the diode / buzzer position in the meter. The 200ohm position may give too little voltage to pass through the PN connector (or NP as you prefer).

tomek1975r · Answer

I have marked the red space for checking the transparencies and in blue where I have to check the transistors and the buzzer will give a signal as will a good transistor and how does the 500 meter display show what it means?

voytalo · Answer

Buddy, do you know what you're checking? I wrote you how to check these 8 transistors, a friend of the steward advised you the same. Those transistors are MOSFETs, and the one you now check is bipolar - a different principle of operation, otherwise it works. Since you have a diode tester in the meter, use it to check the transistors.

tomek1975r · Answer

From the beginning, because I measured badly, I start with these transistors ftp 18n06 YJG2 5138mh 8 pieces of them is and I measure the meter as they are soldered and I touch the meter on the 2 foot (-) and the 3 leg (+) now good. I checked and showed on the 440 meter and does not buzz, 8 pieces of transistors show the same. Then there are 4 transistors only bigger but the same with the plate at the top and three legs IRFP 450 Y04K BR And two of them I show it on the 450 meter and the other two are the meter buzzes.

tomek1975r · Answer

everything is guessed as I turn the tip of the meter it shows 1, no transition. and now I will check the big one too, the same?

voytalo · Answer

IRFP 450 - check these in the same way. h.mps A 44 - foot 1 (-) and foot 2 (+) - shows the value in mV, inversely shows infinity, foot 2 (+) and foot 3 (-) shows the value in mV, inverted infinity.

tomek1975r · Answer

There are 4 IRFP 450 transistors and two as I checked it on the meter showed 450 and the other two as I connected this meter was buzzing, so you already know something? HMPS A44 I checked and showed 610 there is another transistor 780 chn 950 and is identical to ftp 18n06 shows 1520 and vice versa should be 1 and it shows 480 it is strange if it may have a short circuit?

tomek1975r · Answer

L 780 scv 6k2 hkvw chn 950

voytalo · Answer

It is rather a voltage regulator. Replace those two transistors and it should work.

tomek1975r · Answer

I was asking for this irfp 450 yo4k transistor and the remaining ones if necessary they do not have one store and in the other store they are supposedly but closed until August 31. Here I found on the internet - can it be? TRANSFORMER IRFP450 N-MOS 14A 500V 190W 7.00 PLN

voytalo · Answer

May be. But why pay for shipping? And so on now until you will not have, and on Monday you will buy in the store.

tomek1975r · Answer

Let's wait while I sold in and thank you Added after 19 [minutes]:

tomek1975r · Answer

The fuses went off and the same transistors went on until the engine's RPM decreased on the 14v battery when charging. Maybe something else went or short circuit doing the battery with the alternator. How should I connect the inverters correctly? I plugged in as the engine was turned on to the battery and then I wanted to plug in the bulb I have not repaired the reason just the effects

voytalo · Answer

In sequence. Did you replace these transistors and the inverter worked? Do you like? I also forgot you to write that this inverter is Chinese crap and there is nothing to overload it more than half of its rated power. I was supposed to write it after the repair, but I see that I'm late, because I think the transistors went out again.

tomek1975r · Answer

I bought and replaced the transistors, then connected the inverter to the battery and turned it on, the green LED on the inverter turned on and after a while the fuses and the same transistors got fired because I checked with the gauge, the engine's rotation slowed down. There is a short circuit, even if I did not connect the device to the converter, eg 25 W of a bulb. I rather see that the repair will be expensive and it is not worth repairing. I checked the battery again and it has even 14.55v when charging, so I think the inverter if it was set to max 14v it could burn.

tomek1975r · Answer

Is there anyone who will help me? How to turn these transistors into some cheaper ones and fuses (transistors 24 PLN + fuses 5 PLN) 30 amps to check on the battery itself, or the converter will work because recently it worked but went a short circuit after a moment as I turned this converter on the ignited car, the battery was 14.5 v.

tomek1975r · Answer

I bought fuses after 50 gr. per piece and again the same after connecting the inverter to the battery, now without starting the engine, on the battery showed 11 volts, as I turned on the inverter itself and knocked out the safety devices 3 pieces, after a while the battery showed normally 12.6 v. I still buy new wires thicker, maybe this is the reason that the fuses crashes and check.

Micro Control Inverter Power 600: No 230V Output, Firing 30A Fuses, 12V Battery Connection

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