PART 1 Pure sine wave inverter testing using a $30 AliExpress oscilloscope
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- čas přidán 7. 06. 2021
- I wanted to test the power output quality of my $100 AliExpress pure sine wave inverter, and I used a $30 AliExpress oscilloscope.
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Tell me in the comments if you liked this video and what other content you'd like to see on my channel. Thanks!
Link to Part 2 • PART 2 Pure sine wave ... - Věda a technologie
I'm shopping for a pure sine wave inverter, so thanks for pointing out how tricky the online vendors can be.
Nice test!.. But I would like to see the waveform under resistive and inductive loads. That will give you a more realistic scenario. 👍
Check out my latest video that shows the inverter under load!
czcams.com/video/_pfpbvw2qoI/video.html
Thank you for a great . I will be buying one of those today :)
Great Test , I was trying to figure a way to test it at a low voltage, you just showed me how !! Thanks
Thanks for watching!
The little doorbell transformers can be super handy for lots of different projects, but it works perfect for this.
The transformer will smooth the curve, you can try to use 1K resistor and direct connect to the output.
Love it
Excalant sinwave good job
Dude great video. I also got a portable oscilloscope which has a voltage limit. I liked how you were able to hook it up to observe the inverters wave form. Good job! I'm hoping to get a larger bench scope when money becomes available. Also liked your shop main disconnect.
The transformer isn't needed some claim it changes the wave. Just need the 10x probe available from multiple brands. I just made a vid showing an example search YT for "2uPgP3S5sug" and it will be the first vid, or go to my channel and click on videos. It's currently the latest vid.
Sorry for the late reply, but thanks for watching!
Others have mentioned that I could have bought some adapters for the oscilloscope, but I think my little setup worked pretty good.
I also am hoping to buy a bigger bench scope when funds are available, but for now the little AliExpress one will have to do.
The shop disconnect was an easy (and fairly cheap) addition and really helps me do some testing when I want. Definitely recommend if you have the capability!
That sounds great. I'm also looking to buy fnirsi-1014d on ebay. It has a 7 inch lcd and two channel signal generator. But like you, waiting for funds. It's under 200. It's very space saving in that it's not deep and can rest easily on a shelf. It also I believe operates on 12v dc if I read that correctly. I use lots of cordless solar charged tool batteries in my shop.
I ordered that 10x probe for my portable scope. Thanks again for the tip
👏👏👏 Very good 🇧🇷🇧🇷🇧🇷
Nice to see it with the pure sign wave in testing but under load that might change. It looks really small for a 3000 watt pure sign inverter. Size looks more like a 1000 watt. Still could be useful if its safe.
Check out my latest video that shows the inverter under load!
czcams.com/video/_pfpbvw2qoI/video.html
Nice job! Any chance you would be willing to share the link to the inverter? Thanks!
Sorry for the late response, and I’m sure you found one already if interested, but this is the link to the inverter I purchased.
C$ 43.38 51％ Off | Pure Sine Wave inverter 12V/24V to AC 110V 220V 1600W/2200W/3000W Voltage transformer Power Converter solar inverter LED display
a.aliexpress.com/_m0xuOWO
u must use resistive divider , transformer will modify wave form.
Get on with it!
Nice 👍🏻👍🏻 🇮🇳 Kuki 06|05|2022
i wonder how the wave form looks while the inverter is under load
Check out my latest video that shows the inverter under load!
czcams.com/video/_pfpbvw2qoI/video.html
Thanks for the video,
I want to know if this will work for me.
I have a submersible pump. , single-phase
** **Pump Specifications:** **
- Power: 500W 0.67HP
- Current: 3.8A Steady running current
- Voltage: 220V
- Frequency: 50 Hz
- Max Flow: 35 L/min
- Speed: 2860 rpm/min
- Peak running current - I don't know how much exactly I think it will be 11A
The operating time of the pump is 15 minutes per day.
1500/3000W inverter is good ? or inverter 1100/2200w
I think an inverter like this would work, although if I were to buy another one, I would choose one with 24v or 48vdc input instead of 12 volt
Did you test how many watts it can take and also what the wave looks like when it is under a load?
Check out my latest video that shows the inverter under load!
czcams.com/video/_pfpbvw2qoI/video.html
do you have a link to where you got that inverter from?
C$ 42.38 52％ Off | Pure Sine Wave inverter 12V/24V to AC 110V 220V 1600W/2200W/3000W Voltage transformer Power Converter solar inverter LED display
a.aliexpress.com/_mPnUEEa
@@crownlounger awesome! Thanks
Orbus 2500w good
how much
Bro hello. I have no car no battery and 220v 500 watt Power supply 40A 12v Can I connect it instead of the battery? Connect to the car inverter generate 220 volts?
A few things.
1. You need to purchase an inverter designed to produce 220v. Mine is designed to produce 120v.
2. A 500w power supply will limit you to roughly 500w output. (Actually a bit less)
3. If you already have 220vac power available, why do you want to put that through a power supply to convert it to dc only to put it through an inverter after?
In Myanmar
Government EPC
Electricity cut off so much
So pure sine wave inverter interested in our country 😂
I got the same inverter. I’ve been using it for the past year to power a 900 watt air fryer with no problems, is yours still working?
Nice. Yes, mines still working fine. Seems like a pretty well built inverter for the price
Please now run a hair drier(on low,at least) ,a drill,a grinder, what have you, at the same time you do that test, to see the waveform under load; also, might the transformer alter the waveform,you think? it looks just too perfect...
Check out my latest video that shows the inverter under load!
czcams.com/video/_pfpbvw2qoI/video.html
Ese inversor no es de ondas senoidal pura. Es de ondas modificada. Viendo la dimensión del. Inversor ya se Not que no es de ondas pura... El inversor de ondas pura a diferencias del ondas modificada es que lleva mu ho más ele tronica... O sea más componentes electrónicos. Que el inversor de ondas puras.... No se dejen engañar porfavor... Saludos....
The transformer isn't needed some claim it changes the wave. Just need the 10x probe available from multiple brands. I just made a vid showing an example search YT for "2uPgP3S5sug" and it will be the first vid, or go to my channel and click on videos. It's currently the latest vid.
For sure, I definitely agree.
There is no way that a transformer can change the sine wave. The sine wave in should look exactly like the sine wave out.
As far as the different probe, I know I could get a different one, but I happened to have the doorbell transformer already, and I hate spending money on things if I can avoid it.
I’ll check out your videos! Thanks for commenting!
@@crownlounger In my vid I also show a way to make a little adapter that's safer for testing the Sine Wave. The exposed contacts are mostly covered
Rs.
url for product
C$ 42.50 51％ Off | Pure Sine Wave inverter 12V/24V to AC 110V 220V 1600W/2200W/3000W Voltage transformer Power Converter solar inverter LED display
a.aliexpress.com/_mtAgG0O
Test it under load. Under load most of the cheap Chinese equipment will break down and the sine wave will become distorted.
run a AC from it
It will not ship to US. Cost 80 bucks.
me interesa, pero subtitular en español; la segunda lengua hablada en tu pais, y toda America latina. seria bueno, para comprenderte. Gracias!!
I’m Canadian. The second language in my country is French. :)
Yes i m interested 3000 wt 12volt Dc. Plaid what prize
I m interested dove picese
@@crownlounger five piece
Plz ans
I watched this twice & still don’t understand what you proved. Explain?
I was testing to see that the inverter was producing a clean 60 Hertz sine wave. Many cheaper inverters like "modified sine wave" inverters will produce a "square wave" sine wave which is undesirable for some applications like refrigerators, power tools, furnaces, etc. (anything with an AC motor) An example of a square wave is shown as part of the oscilloscope test function at around the 3 minute mark.
how do i buy something at aliexpres bro?
Download the app, enter your information and order what you want
That inverter is bad very poor
I always laugh when I see the words, 'pure sine wave' on an inverter. It's an oxymoron. The 2 are incompatible. The fets open and close rapidly creating whatever wave form possible but certainly not "pure". Filters also help. But again not a pure sine wave. If you look at the little bumps in your wave form, you will see these irregularities are less than pure, which would be completely smooth. Knowing how the dc is converted to ac in an inverter tells you that these devices are incapable of a 'pure' sine wave. Not that they aren't acceptable either, mind you. But none the less, a bit disingenuous. It is possible to create so many pulses to get the waves into a more useable form but not pure. And again, that's by nature of the way an inverter works. If you want pure sine wave you get a generator and spin it around inside 2 fields to produce one. Many of these inverters do get you close enough for useful purposes, though.
Hate video with connections already in place. Not trust worthy. Start from everything disconnected to prove no foul play
This video is no no good for me. What plugs are already hooked up. 😮