Teardown Tuesday.<br />What's inside a Braun electric rechargeable toothbrush?<br />And some basic measurements on wireless power transfer and charging.<br />Chips Used:<br />EM6682: http://www.emmicroelectronic.com/webfiles/product/mcu/ds/EM6682_DS.pdf<br />TSM7401: http://www.goodexcel.com/new/download/SPEC2008_RoHS/BATTERY_PROTECT/TSM7401(SOP-8).pdf
