can i mod a power supply

[Arcamax]

can i take this power supply http://www.princessauto.com/en/detail/90w-universal-a-c-laptop-charger-power-supply/A-p8607269e and change the output voltage to 12v and keeping output current at 4.73amps.(i talked to princess about the current and they told me it was)

[madires]

Can't say very much without a look at the circuit diagram but I guess yes. Maybe it's a simple design with a TL431 driven feedback.

[Arcamax]

yeah i just didn't want to buy it first without knowing if it was possible.

[Isad]

Usally laptop charger can be moded easly as madires said they have a feedback loop
wich u can change the resistenc but dont know much about that.As if u go to low the
psu shuts down and i dont know whats the min voltage on that thing.

[rickselectricalprojects]

just get a step down module of ebay http://www.ebay.com.au/itm/DC-DC-CC-CV-Buck-Converter-Step-down-Power-Supply-Module-7-32V-to-0-8-28V-12A-GA-/181617142420?pt=LH_DefaultDomain_15&hash=item2a4939aa94
that one is rated for 12a and you would have a much wider range of voltage and you could even use that charger as a bench power supply with that module. (that's what i did when i was starting out)
hope this helps