NXP LPC3240+JN5168智能家居网关方案

In a gateway system the Smart Devices form a JenNet-IP tree network allowing messages to be directed to both individual nodes in the form of unicasts and groups of nodes in the form of broadcasts from within the wireless PAN and any connected LAN or WAN.

基于NFC的家庭网关

A growing number of homes use a WiFi router to make Internet access more convenient, and now, as homes become more connected and the number of Internet-ready devices continues to expand, the router is truly the heart of home-based Internet of Things (IoT) networks.


图5。基于NFC的家庭网关框图

The router acts as a home gateway, providing Internet access to everything from mobile phones and laptops to appliances like washing machines and refrigerators, wearables, thermostats, multimedia players, and even fish tanks.

With NFC, the router can send credentials to any new device equipped with an NFC tag, for quick commissioning, and the consumer’s NFC-enabled smartphone or tablet can be used as a bridge, to make the interaction even easier.

The NFC IC inside the router generates the necessary RF field for communication, so the device being commissioned doesn’t need to be powered, and that saves energy.

DAKA 电子设计 - 移动电子设计先锋

AC-DC开关电源属于A级ITE还是B级ITE? 如题。
沙发

阻焊显影阻焊显影步骤同线路显影。

关于张占松老师《电源设计一书》中的疑惑？


这是正激变压器的Ap法设计公式，感觉怎么算都不对呢？式中的5.4怎么来的？


为什么我算出来就是0.361？
書本供參考，不一定全對

大电流电感

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