PWM sine wave on UPS?

[Karsten75]

I'm looking to buy a UPS and came across the Tripp-Lite Smart LCD 1500VA .

I think the power rating is about right, the line mode is what I'm looking for, now the only worry I have is in the specifications is says that the battery output is "PWM Sine wave".

I know the stepped sine wave is death to monitors and power supplies, but is PWM sine wave the same? From what I read not, but no definitive answer.

Any insight is appreciated.

 

[ko888]

I'm looking to buy a UPS and came across the Tripp-Lite Smart LCD 1500VA .

I think the power rating is about right, the line mode is what I'm looking for, now the only worry I have is in the specifications is says that the battery output is "PWM Sine wave".

I know the stepped sine wave is death to monitors and power supplies, but is PWM sine wave the same? From what I read not, but no definitive answer.

Any insight is appreciated.

PWM (Pulse-Width Modulation) sine wave is the same thing as a stepped sine wave.

 

[Karsten75]

Crud. Thanks.

Do we have a list of affordable, home-use sine wave UPS systems somewhere on this site?

 

[ko888]

No list on this site.

I've been using one of these and haven't had any problem with them:

http://www.newegg.com/Product/Product.aspx?Item=N82E16842102134

http://www.cyberpowersystems.com/products/ups-systems/pfc-sinewave-series/CP1500PFCLCD.html

 

[Karsten75]

Thanks.