At Digital DIY, an open source electronics blog, they have an extensive overview of the technology of wall warts including how they work and how you can use them for projects. If you’re curious how such a small device can take the face melting power of raw wall current and carefully regulate it so that it doesn’t turn your cellphone into a smoldering pile of plastic, hit up the link below to dive into the science of wall warts.
Digital DIY via Make
