The design rules and observing proceedings are presented from the layouts, wires placing and grounding of the printedcircuit 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。
2
This test system may be used on a variety of devices, such as connectors, switch es, multiple conductor cables, and printedcircuit boards.
该测试系统可被用于各种装置，例如连接器、开关、多芯电缆和印制板。
3
The utility model provides an electronic ignition switch fuel-saving device for automobiles, comprising a metallic casing, a printedcircuit board and electronic components.