switch mode power supply theory

{"title":"IEC60950 Open Loop Hall Effect Current Sensor Dismountable","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/df\/c5\/af43c939b7bc5546e9f3aa2364b6-200x200-1.jpg","attrs":{"Price":"Price reconsideration","Brand Name":"TOKEN","Model Number":"TKC-H","Minimum Order Quantity":"10pcs","Delivery Time":"7~10 working days","Certification":"CE;ROHS","Place of Origin":"Nanjing,China","Payment Terms":"L\/C, T\/T, D\/P, Western Union","Supply Ability":"10K pcs per month","Packaging Details":"Little carton:34*23*21CM 36pcs\/carton;Large carton size 48*37*26CM 72pcs\/carton","Name":"Open Loop Hall Effect Current Sensor","application":"Switched Mode Power Supplies","Input current":"100-2000A","Supply voltage":"\u00b115 \u00b15%","Standards":"IEC60950-1:2001","Usage":"Instrument","Theory":"Hall Sensor,Current Sensor","Accuracy":"\u00b11%"}}