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Passo 11
Teardown Update—A closer look at the logic board reveals something interesting: Cypress CYPD2104 USB Type-C Port Controller
  • Teardown Update—A closer look at the logic board reveals something interesting:

  • Cypress CYPD2104 USB Type-C Port Controller

  • What’s a USB-C controller doing in here? The iPad doesn’t have a USB-C port.

  • Ah, but if you pair this little chip with a Lightning-to-USB-C cable and Apple’s 29W USB-C charger, you unlock a bonus feature: USB Power Delivery, a.k.a. fast charging.

  • Previously featured only on the 12.9” iPad Pro, fast charging cuts your battery charging time in half. (This was an especially big deal on the 12.9” model, which otherwise needs up to five hours to drink enough electrons for a full charge.)

拆解更新——近距离观察逻辑板揭示出了一些有意思的东西:

赛普拉斯/Cypress CYPD2104 USB Type-C 接口控制器。

这个USB-C控制器在这里是干什么的?iPad连个USB-C接口都没有。

啊哈,如果你把这枚小芯片和Lighting至USB-C线缆以及苹果的29W USB-C充电器连接起来,你就解锁了一项隐藏技能:USB PD充电协议,也就是快充。

在此之前只有12.9寸的iPad pro才有这项功能。快充使得充电时间减少了一半。(这对于12.9寸的iPad尤为重要,否则你要花5个小时才能充满电)

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