Voltage change from 110v to 220v

MisterBill2

Joined Jan 23, 2018
27,712
It may be that there is more to changing the line voltage than just moving that connection. There may be additional connections on the other side of the PCB. Clearly, since the fuse failed, something is not right.
 

Thread Starter

Techmasteruk

Joined Oct 13, 2016
58
It may be that there is more to changing the line voltage than just moving that connection. There may be additional connections on the other side of the PCB. Clearly, since the fuse failed, something is not right.
Thanks misterbill, I had it connected for a period of time I also switch it on/off multiple times and it seems to be working fine at 240v now. I don’t know why the fuse blewup at my first attempt !!
 
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MisterBill2

Joined Jan 23, 2018
27,712
Thanks misterbill, I had it connected for a period of time I also switch it on/off multiple times and it seems to be working fine at 240v now. I don’t know why the fuse blewup at my first attempt !!
There must have been a small short circuit that "cleared itself" as the fuse was failing. That does happen on occasions, possibly an examination would show evidence of where the fault had been. Possibly a solder thread created while moving that link.
 

Thread Starter

Techmasteruk

Joined Oct 13, 2016
58
There must have been a small short circuit that "cleared itself" as the fuse was failing. That does happen on occasions, possibly an examination would show evidence of where the fault had been. Possibly a solder thread created while moving that link.
Possibly, or I‘m suspecting my power extension socket that I used to plug the unit, I realised anything I plug to it makes sparks.
 

MisterBill2

Joined Jan 23, 2018
27,712
Hi Tony, I think they’re called power conditioner.
A power conditioner is an entirely different thing. The ones that we used had a tuned filter to provide a pure sine wave. They were used to filter the power that came from from the inverters powered from the vehicle electrical system. We were powering some noise sensitive recording systems and needed a noise-free AC line voltage. The power conditioners took a rather high-harmonic content 120 volts and delivered a nice sine wave.
 
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