Cleaning Modified Sine Wave

[eddief1]

Any recommendations here for a solution

I have a nice auto changeover inverter that was given to me, all setup and working. The only problem is that is a modified sine wave inverter.

How can I "convert" modified sine wave into true sine wave to power my sensitive electronics.

My thought was to maybe feed the modified sine wave from the inverter into a true online UPS, so in theory I should get nice clean power out from the UPS.

Has anyone tried the above, will it even work or will the online UPS sense the modified sine wave as a brownout and run off battery.

Any other tricks to clean modified sine wave

 

[Thor]

I was thinking of soldering in some capacitors to filter the "noise".

Not sure if it will work.

 

[biometrics]

I was thinking of soldering in some capacitors to filter the "noise".

Not sure if it will work.

I bet it won't work. :twisted:

 

[Thor]

I bet it won't work. :twisted:

I can be wrong.

It would be cheaper than buying a Online UPS thou .

 

[mister]

I was thinking of soldering in some capacitors to filter the "noise".

Not sure if it will work.

*facepalm*

 

[Arthur]

I was thinking of soldering in some capacitors to filter the "noise".

Not sure if it will work.

Try it and let us know. Video please.

 

[froot]

Try it and let us know. Video please.

He should be sure to place the video some distance from the UPS. So it doesn't get damage from the heat of the fire.

 

[P924]

But who will post the video?

 

[wetkit]

The only way to try and smooth out the output from a modified sine wave, is to run it through a 1 to 1 ratio transformer.
Problem is this transformer will run very hot and cause electrical losses.
Rather spend your bucks on buying a decent pure sine wave unit.

 

[Electric]

I was thinking of soldering in some capacitors to filter the "noise".

Not sure if it will work.

Be sure to add water, it conducts the sine wave better.

 

[Alacrity]

How can I "convert" modified sine wave into true sine wave to power my sensitive electronics.

Things that really need true sine wave are not the things you would think it is. Your PC does not need a true sine wave but your fridge won't last without it.

 

[upup]

Any recommendations here for a solution

I have a nice auto changeover inverter that was given to me, all setup and working. The only problem is that is a modified sine wave inverter.

How can I "convert" modified sine wave into true sine wave to power my sensitive electronics.

My thought was to maybe feed the modified sine wave from the inverter into a true online UPS, so in theory I should get nice clean power out from the UPS.

Has anyone tried the above, will it even work or will the online UPS sense the modified sine wave as a brownout and run off battery.

Any other tricks to clean modified sine wave

cobra polish

 

[fruitbat]

I too dont like the idea of a modified sine wave going into expensive media equipment
So - could you do this....
Buy something like this which is modified sine wave...
http://www.dionwired.co.za/ellies-600w-invertor-trolley.html

Then put that through a UPS that is pure sine wave

And plug your tv / router / server into the UPS.

Would that work?

 

[eddief1]

I too dont like the idea of a modified sine wave going into expensive media equipment
So - could you do this....
Buy something like this which is modified sine wave...
http://www.dionwired.co.za/ellies-600w-invertor-trolley.html

Then put that through a UPS that is pure sine wave

And plug your tv / router / server into the UPS.

Would that work?

This is the question I am asking and the reason for starting the tread

 

[Mr.Jax]

1) What are these sensitive electronics that you are concerned about ?
2) Do not Wire Caps to try and smooth it out lol.
3) If you do want to wire caps, you must take a vid and post it on youtube ok ?

 

[Alacrity]

I too dont like the idea of a modified sine wave going into expensive media equipment
So - could you do this....
Buy something like this which is modified sine wave...
http://www.dionwired.co.za/ellies-600w-invertor-trolley.html

Then put that through a UPS that is pure sine wave

And plug your tv / router / server into the UPS.

Would that work?

Too much losses, rather have just one good UPS.

 

[fruitbat]

Too much losses, rather have just one good UPS.

Thats kind of what ive done... ive got a UPS arriving on Monday that will power my TV and one light... and have capacity for 4-6hrs... I'm thinking of getting another one to power my server, router and 3 other lights... as its on the other side of the room.

I did want to go inverter + batteries but - i'm nervous - I've realised im not technically competent to wire this stuff up and small kids will play havoc or end up dead. I dont need that on my hands...

 

[Alacrity]

Thats kind of what ive done... ive got a UPS arriving on Monday that will power my TV and one light... and have capacity for 4-6hrs... I'm thinking of getting another one to power my server, router and 3 other lights... as its on the other side of the room.

I did want to go inverter + batteries but - i'm nervous - I've realised im not technically competent to wire this stuff up and small kids will play havoc or end up dead. I dont need that on my hands...

In this case each UPS and load is independent which is fine. The case where one UPS is used to power another UPS is possible but not advisable.

 

[mister]

In this case each UPS and load is independent which is fine. The case where one UPS is used to power another UPS is possible but not advisable.

Warning: A lot of UPSes do not like modified sine as their input - they show a mains failure.

 

[Alacrity]

Warning: A lot of UPSes do not like modified sine as their input - they show a mains failure.

It makes sense that a line-interactive UPS would not be happy with that