Hi,
Are these mini PCB mounted AC to DC Converters any good? Have anyone tried them out? I just wanted to know whether they could replace my AC to DC wall wart adapter for supplying power to my Arduino projects without any problems. 
This one looks interesting, I also like to see others response.
I don't see any problem using that, as long as it have necessary current for your setup. Take care of tha fact that connecting mains to pcb CAN BE DANGEROUS!! Use something like hot glue stick or neutral silicone glue to isolate the high voltage from the external.
Ciao, Ale.
yes, I'm sure it would work. The question is why. What's wrong with a wall wart? They have got to be infinitely safer.
Qdeathstar:
What's wrong with a wall wart?
Nothings wrong, but with this the project will be more compact + I can place my Arduino project near a ceiling AC bulb socket without needing a separate 2 pin socket or an a wall wart sticking out, or I can place my Arduino project inside an AC appliance sharing its AC power in parallel. ( eg: I can place my Arduino LED ambient back light project inside my TV with power source being shared with the TV's AC in. The project will be neat, comapct and I can avoid making a hole on the TV for Arduino separate DC in from wall wart.)
ilguargua:
Take care of tha fact that connecting mains to pcb CAN BE DANGEROUS!! Use something like hot glue stick or neutral silicone glue to isolate the high voltage from the external.
Sure thing.
Well, if you are going that route, I'd recommend putting fuses on both sides of the module to limit the risk of an over current condition.
Qdeathstar:
yes, I'm sure it would work. The question is why. What's wrong with a wall wart? They have got to be infinitely safer.
Depends entirely on the build quality - unapproved cheap power supplies are often very scary inside...
MarkT:
Depends entirely on the build quality - unapproved cheap power supplies are often very scary inside...
Well... Yea, but I waint talking about them anyway.
Qdeathstar:
Well, if you are going that route, I'd recommend putting fuses on both sides of the module to limit the risk of an over current condition.
Why both sides? I think a fuse on the VIN is more than enough, Besides the AC circuitry in my house has both an MCB and an RCCB protection.
MarkT:
unapproved cheap power supplies are often very scary inside...
and I've had a lot of them and fail and produce sparks and smoke.
Sadly the market is filled with them. Only the OEM ones are trusty, but I've seen replica Samsung USB wall warts that look exactly the same, unless you look at the internals. Clones are getting harder to spot these days.