Wurth Electronics Midcom Inc
DFM
Safety in transformer
EMI consideration when design transformer
New material and product
湖南省四六级报名
economist
Transformers
•Less than 100W unless
hillcrest
•Freq < 500kHz
•Current < 20A -Using Parallel Windings
•Low voltage offline (Vin <300V or 400VDC)
liberation•Dielectric <= 4.5kV for offline
•Safety Agencies -IEC60950 and IEC61558-2-17
Custom Inductor
xinanchance是什么意思•PFC Coil
•Shape core buck inductor
口才与交际
•
Common mode choke with shape core
What Wurth Midcom focus on
Capability but not focus on
Toroid inductor
•Limited High Turns Capacity
•Wire Size to 15AWG
•Special Winding Techniques Difficult to Duplicate Amongst Many Operators
Foils Winds and Foil Shields
黏虫•Rule of Thumb is an Extra Dime per Foil
Tubing Eliminates any Possibility of High Speed Auto Winding and Termination
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Product in the future
Planar transformer
•250 Watts
•150 Watts •Transformers for tube light •20 Watts
•30 Watts
Design for manufacturability十二月份英文
Pinout
Wire size vs. number of strands
Coil build
Electrical specification / tolerance
Shelf tape and insulated wire (introduced in safety)
