Yuantong Bei Lu, or just buy a new power adapter with Chinese plug etc. Same place.

US PS3 doesn't come with a power adapter. It's built in inside. And you don't want to open that box and start ripping out parts.

Recommended power converter (about 150 rmb)

HUGETECH (Shanghai Juke Electrical Co.)
SVC-500VA
(it also allows you to convert from 110V to 220V and from 220V to 110V)

It's a little heavy, so if you intend to travel a lot, find something lighter. But then I don't get the point of bringing a PS3 too haha.
The problem with small / cheaper models is that they might not have surge-protectors and other safety features.