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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This test system may be used on a variety of devices, such as connectors, switch es, multiple conductor cables, and printed circuit 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。

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The utility model provides an electronic ignition switch fuel-saving device for automobiles, comprising a metallic casing, a printed circuit board and electronic components.

本实用新型提供了一种汽车点火电子开关节油装置。它是由金属外壳、印刷电路板、电子元器件构成。

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