https://blog.wongcw.com/2022/01/01/diodes%ef%bc%9a%e5%8d%8a%e5%b0%8e%e9%ab%94%e8%a1%8c%e6%a5%ad%e5%87%ba%e7%8f%be%e7%94%a2%e8%83%bd%e9%81%8e%e5%89%a9%e5%b1%80%e9%9d%a2%e5%8f%af%e8%83%bd%e8%87%b3%e5%b0%91%e9%82%84%e8%a6%81%e5%b9%be/