手廻しジュールシーフLED発電灯.avi

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Uploaded by on Jan 19, 2012

手廻しジュールシーフLED発電灯
DCモーターをギヤーボックスに繋いで作った手廻し発電機にジュールシーフ回路のLED照明を着けてみた。DCモーター廻して発電した電気はVfの低いショットキーダイオ­ードで逆流防止して大容量の電気2重層コンデンサに蓄電して常時手廻ししていなくても暫くの間はLEDを点灯する。

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