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Introduction
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Hi, guys. Welcome back to today's video.
Today, we gonna take apart the third generation of Lenovo thinkplus 65W Nano charger.
In order to reduce the size of this charger as much as possible, it adopts the planar transformer and special structure.
Three small PCBs instead of a complete PCB can significantly improve space utilization.

Bill of materials (BOM)
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Time-delay Fuse: Better Electronics (3.15A 250V)
Safety X2 Capacitor: KNSCHA (0.22μF)
SMD Common Mode Choke: San Ding
Filter Capacitor: AiSHi (400V 15μF)
Master Control Chip: ON Semiconductor NCP1342
GaN Power IC: Navitas NV6134
SMD Y Capacitor: TRX
Synchronous Rectifier Controller: Silergy SY5238
Synchronous Rectifier MOSFET: MCC MCAC60N10Y (100V 7.2mΩ)
Protocol Chip: Injoinc IP2726
Output VBUS MOSFET: JSCJ CJAB55N03S (30V 3.8mΩ)