V-phase

MrMagoo · Feb 14, 2011

What do you think a switch mode PSU does if AC volts is reduced?

RecycleElectron · Feb 14, 2011

It will adjust automatically, but there will be little or no change to the energy used as the current drawn will increase to maintain the output at the correct voltage. This is covered by some of the earlier posts in this thread. It is unlikely that voltage regulation devices will give a saving with SMPSU's as far as I can see, as the power supply is already doing that job really. Switch mode is a common technique in a lot of stuff these days and must amount to a significant proportion of the target energy saving (or not) for the voltage control device I would guess......

Engineer54 · Feb 16, 2011

Just another gimmick that sounds good, but when thought about with an electrical mind, falls down in many areas.

Another thought, .... 300+ smackaroos for a unit that can only handle 8A tops?? ...And worst of all, having to wait and wait for that cup of tea or coffee that your absolutly gasping for, ... NO WAY!!! Leave this bit of kit for the yuppies and Gizmo kids!!! ...lol!!!

Kamikaze · Feb 16, 2011

Engineer54 said:
Just another gimmick that sounds good, but when thought about with an electrical mind, falls down in many areas.

Another thought, .... 300+ smackaroos for a unit that can only handle 8A tops?? ...And worst of all, having to wait and wait for that cup of tea or coffee that your absolutly gasping for, ... NO WAY!!! Leave this bit of kit for the yuppies and Gizmo kids!!! ...lol!!!

I was thinking that myself....lol