EEVblog #659 - Medical Plugpack Teardown

What’s inside an IEC60601-1 medical class 5V mains DC-DC plugpack? What is the difference between PCB clearance and creepage? A German FRIWO 5V FW7555M/05 brand medical grade isolation unit vs a cheap Wun Hung Lo consumer brand. Also a comparative look at transformer construction. Datasheets & Links: Forum: EEVblog Main Web Site: The 2nd EEVblog Channel: EEVblog Amazon Store (Dave gets a cut): Donations: Projects: Electronics Info Wiki: Теги: transformer construction,winding,e core,transformer,insulation,isolation,creepage distance,clearance,pcb,design,teardown,medical,iec,capacitor,construction,datasheet,iec60601,iec standard,optocoupler,safety