先進的無線電源部件使設計充電器比以往任何時候都更容易

　　有多少手機、音樂播放器和其他便攜設備，我們扔到垃圾桶，因為片狀電源連接器？看來，需要充電我們的設備，使最終的電源連接器將被強調的點有間歇性連接或開路。鑒于修理費用，它不支付修復它（和好運找到有人愿意處理維修）。一個答案的勢頭是避開連接器完全支持無線充電。

　　雖然一個新奇的第一，無線充電到先進的制造商提供的塊和/或整個解決方案，可以很容易地納入您的設計。不再有一個需要手動風定制線圈墊或被眾多手工制作任務約束。

　　本文將研究無線充電技術的狀態以及現成的部件和解決方案。這些資源使它更快速，更容易添加無線充電到您的設計沒有昂貴的迭代和手工制作步驟。所有的配件，說明書，教程，和開發包，可以參考這里Digi-Key的網站上找到。

　　It’s a transformer

　　Basically， wireless power transfer is a coil next to a coil， or in other words， a transformer. In this case， the transformer is air-coupled rather than wound around a common ferrite core. In all cases， as one side oscillates， its field radiates outward until it slices through another coil which recovers power in AC form.

　　PCB traces can be used as a coil in some cases. As with transformers， voltage and current ratios in PCB Traces depend on the number of turns in primary and secondary coils. As a result， size and trace density may limit the number of turns possible on a PCB and the maximum amount of current a trace can carry. This makes real wound coils more desirable and effective.