5月 2026 - 私の図書館

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MOSFETの故障診断手順

## PチャンネルMOSFETの故障診断手順 PチャンネルMOSFETの故障診断手順を、テスターの接続方法と判定基準に分けて表にまとめました。 ### テスターによる良否判定表 ※テスターは「ダイオードテストモード」に設定してください。 | 測定箇所 | プラス（赤）プロー...

2026/05/23

# **概要** 今まで作ったデサルフェータは間違った設計をしているようです。 [元ネタ：Alastair Couper's Report](http://alton-moore.net/graphics/desulfator.pdf?utm_source=chat...

2026/05/19

ESP32 S3/C3 Super Mini アンテナHack

ESP32 S3/C3 Super Mini アンテナHack

ESP32-C3 / S3 Super Mini は、その極小サイズと安価な価格で人気ですが、共通して「Wi-Fi の電波強度が極めて弱い」という致命的な弱点を抱えています。この問題を解決するために、海外のコミュニティで定着している「アンテナ・モディファイ（Antenn...

2026/05/13

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