/challenges-projects/design-challenges/wireless-power-ii/b/blog/posts/03-searching-for-electro-magnetic-interference-emiPrevious blog entry: 02 Wireless charging in household items - construction and wallplug efficiency Next blog entry: 04 Wireless power board under varying load conditions In 1990-ies hobby people used 50Hz-transformer power supplies and did...en-USTelligent Community 12