Turns ratio reflected impedance to the primary is increased, not reduced, by the turns ratio. This includes capacitive reactance.
You should pull this article before the misinformation spreads too widely.
The 1 watt waste for a 4W supply is amazing. Thanks for a good basic article with enough technical information to be useful. This will help in the decision process for the next set of power supplies we select.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Are the design challenges the same as with embedded systems, but with a little developer- and IT-skills added in? What do engineers need to know? Rick Merritt talks with two experts about the tools and best options for designing IoT devices in 2016. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.