Voltlog  

Thanks for the honest opinion of the product. Always a pleasure to watch your videos.

Nice to see honest video. We all have temporary lapses of understanding. Young people need to be ok with that.

I learned so much from this video - sir you are a star

You could use the FFT fonction of the scope to get an idea of the purity of the sine wave

I did buy one of those sine-wave modules, but mine has the IR2113 instead of the IR2110. Never got around playing with it since my plate is already full with project. I will keep it for the time (if and when) I build a 1-2KW inverter for my cabin. Thanks for yet another great video.

Thank you for the detailed review! Did you connect the probe directly to the output of the inverter?

Hello VoltLog, can you provide the link of datasheet/ schematic of this inverter

Hello can the low voltage warning be set to 11 volts instead o the 10.5 volts ?

What kind of Toroidal core do they use on output LC filter?

would it be possible to change the input voltage from 12 to 24v? thanks :-)

nice video sir, i don't have any knowledge about power inverter can you tell me which type of inverter will be suitable for submersible water pump 1hp and what should be watts.thanks

Great analysis! So they’re using a half-bridge topology for the dc dc converter. Interesting...

plsss i need your help. ihave 2000w inverter souer brand and i want to adjust the voltage cut off it shutdown on 10.5v and i want to adjust it 9.5v because im using alum battery it has lower resting voltage:(

For a high current 12V source, use a lead acid car battery. If you have a car, connect it to the battery with engine running.

Very nice presentation.

Nice, thorough examination and analysis. Given the quality of the sine wave, seems like a good deal. If the USB current is a big deal, maybe someone could add a heat sink to the 7805. Looks like enough room for that. I used your link and see they do offer a 110VAC version at only $38. Got a 1 star review from one reviewer who said it only delivered 230W at 1.0 power factor and 13.9VDC. $38 isn't too bad for this quality of sine wave though. Think I'll get one. Thanks for your review.

Why does it get rectified to dc after conversion to 390v ac. Why doing dc to ac to dc to ac instead of just dc to ac and filtering?

tolong inventerku 300w pure sine wave buat kulkas ga mau ngankat apanya yaa

Very good video my friend. I like. Can you tell me the link for inductor ac? Thank you very much

This video just set me wondering if there would be any merit in using one of these instead of an isolating transformer when working on mains powered equipment? Isolation transformers are very expensive but I already have an inverter

good review but on a side note isn't a to-220 package 7805 rated for 1.5A so depending on the input voltage will determine how quick it reaches thermal shut down?

I have 2000 watt and 500 watt pure sine wave inverters from Reliable Electric (Ebay) and both units deliver a cleaner sine wave than the elctric co-op that provides commercial power to our area.

Hello Sir Thanks for sharing.... If possible to share the output inductor value and specifications of the core and wire details please... More helpful

The IRF (Infineon) components are pretty good. Only the thermal design is pretty bad. I wonder how this thing will last over time actually. edit: Modulation freq of 23.4kHz is also not something to be very happy with

Thanks. Good info. 👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼👍🏼

Do you know what frequency the output MOSFETS are being driven at?

What's the mechanism for making the output sinusoidal here? Is it just the inductor after the H-bridge with a 50Hz square wave? Or is the chip switching the mosfets in a more complicated way? I would have thought if it were that simple then why wouldn't every inverter put an inductor in series with the output. I would be interested to see the mosfet behaviour on the scope if you think other viewers would also be interested.

Thanks for an honest opinion and tear down of this product. I am always a little concerned with high voltage stuff from China. They do look like they are getting better and one day may be the go to source for electronics.

Any chance of a full schematic to study? I love SMPS and inverters and study them every chance I get, to learn new tricks.

You can find a good quality "12V" high current PS without resorting to using a computer PS. They are often used for amateur radio and many have a variable output from about 5 to 16 volts with current capability of 25A+ continuous with surge of 30A+. And with low noise. If you need some suggestions let me know.

very good

Very nice review ! And you have respect for your tools, because you cleaned it. I liked that.

do you think such a module can be bought on aliexpress? would be cool if we could just slap our own big mosfets on there and create higher power versions also i finally started making videos. at least a few :P on my Electronic Savage channel

use the 12v output of a pc psu...

0:07 - only 7 seconds in when you said "pure sine wave inverter" and I saw the poor hand drawn "sine wave" on the box I was "nope, not quality". If they can't produce a good image of a sine wave what else have they cut corners on? Many quality manufacturing issues and I am surprised by the slow 3 second voltage ramp up. And with reasonable filtering the 7805 shouldn't have 500mV of noise. That's just nuts! I would have liked to have seen the input of the 7805 on the scope and I wonder what voltage it is being provided. I'm guessing it is straight from the "battery" source so the 7805 has to drop 7+ volts. No wonder it is cutting out so quickly.

If you don't have any filtering on, why is your oscilloscope so terribly terribly slow?

I was a little amused when you said the universal output socket would work with US, European, *even* Australian... Is the Australian plug considered somehow strange?

Use your car battery ;) Used to use a 1000W inverter when I drove transport trucks. Enough to run a small microwave, tv, etc... However had to be careful because even with 3 truck heavy duty batteries these will run your battery down quickly if not careful.

I think the output current of 500mA on the USB jack is ok, because USB is just specified up to 500mA. But man, the ripple of the USB output is just awful.

Really interesting. Maybe even the horrible Brazilian socket would fit there.

I gotta get me some of that flux cleaner. Too many dirty PCBs from the floor in China.

you're missing 10 Hz there buddy 😂 (JK)

Cheap, $38 from USA warehouse. Hmmmmm...

too much useless talking