Multek is a large PCB works affiliated to Flextronics, and United Power is the subsidiary of Unimicron, the world's largest handset PCB producer, which supplies PCB for Nokia and Motorola via Foxconn.
超毅科技是伟创力旗下PCB大厂，联能则是全球第一大手机PCB厂欣兴的子公司，通过富士康供货给诺基亚和摩托罗拉。
The design rules and observing proceedings are presented from the layouts, wires placing and grounding of the printed circuit board (PCB) aiming at the EMC design of switch power supplies.
针对开关电源印制电路板的电磁兼容性设计，从PCB的布局与布线、接地等方面提出设计原则及注意事项。
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