pkshima
Member
Hi,
My ADSL modem needs 15 V AC power supply. It has a wall adaptor that does the step down. So far so good.
But in power cuts, I cant be online. I use laptop so no backup required for a computer.
So I am thinking if I can build a circuit to serve as power backup for the modem using batteries. It just needs 15 V AC so I think a UPS would be an overkill. If it needed DC, I would be all set but the darn thing needs AC so something to convert DC to AC without building a full blown inverter.
Any ideas ?
Thanks in advance.
My ADSL modem needs 15 V AC power supply. It has a wall adaptor that does the step down. So far so good.
But in power cuts, I cant be online. I use laptop so no backup required for a computer.
So I am thinking if I can build a circuit to serve as power backup for the modem using batteries. It just needs 15 V AC so I think a UPS would be an overkill. If it needed DC, I would be all set but the darn thing needs AC so something to convert DC to AC without building a full blown inverter.
Any ideas ?
Thanks in advance.