HYBRID W-ZERO3 電源についてメモ2010年02月11日 17時00分

過負荷の成れの果て。
写真は下手なもの繋ぐとこうなるという例。灰鰤恐ろしい子!

 Hybrid W-ZERO3は充電条件が厳しい。D+-の短絡なんて条件無しに動いて欲しかったもの物だ。eneloop系全滅とか割と酷い。
 しかし、こうなる事情は分からなくもない。なにしろ灰鰤はMAXで900mAほどの電流が流れるようで、下手なもん繋ぐとアダプタが燃える危険性がある。っていうかウチではもう1個燃えた器機がある。

これまでに判明したこと
・D+とD-の短絡が必要
・充電ランプが付かずとも給電はされているため、場繋ぎ的にはランプがついてなくても給電で延命出来る。場合によっては充電ランプが付かずに消灯から突然満充電ランプが付くことも。
・能力不足のデバイスもスクラム組むことで充電可になる場合があるが、基本的に無駄。Y字USBケーブルみたいな扱いがOKなのはPCやACアダプタの類のみぽい。

 電池の充電はスペック上1Wほどのようだが、実際はその半分以下の時間で充電出来てしまいます・・・ おそらく急速充電モードと低速充電モードの2種類がある。 変換ロスを考えてもUSB規格の給電上限値2.5W(=5V 500mA)は食ってるんじゃなかろうか、と考えると動作させながら充電っていうのはかなり無理が。電源OFF時なら充電出来るって仕様にも納得。

 しかし、モバイルバッテリーが使えないというのは最悪に困る。そこでワタクシ、Y字ケーブルのD+-を短絡させたケーブルを作ってみたのだが、これをPCのUSBコネクタやモバイルバッテリー2個に繋ぐことで普通に充電出来るようになった。
http://twitpic.com/1277lp
問題はもちっとコンパクトにならんものかと思う所。ポシェットの中でとぐろ巻いてやな感じ。今のとこ一番現実的なのはスティックブースター2本のやり方。でもコレ、現状手に入らないんだよね・・・ なんか売れまくりらしい。ギギギ・・・ 製品改良でD+ D-の短絡Ver出してくりゃれ・・・

電池ケース部門

 eneloop stick booster KBC-D1AS(単三2本)
       D+ D- 回路
       改造  不可
       給電  可
       充電  不可
 組合わせ動作  不可
eneloop(1.39V)   4.96V
EVOLTA(1.53V)   4.96V

 電圧が安定しており、一般乾電池に逃げることも出来る優れもの。コレのスクラムアダプタを作って2本持ちするというのが一番現実的な解と思われるが、なにより高価で品不足なのが困りもの。ようやく2本目のスティックブースターを入手。電池が片減り起こして数分で止まってしまった。ぶっちゃけスクラム組んでも無理だった。

 eneloop mobile booster KBC-E1AS(単三2本)
       D+ D- 回路
       改造  不可
       給電  可
       充電  不可
eneloop(1.39V)   5.2V
EVOLTA(1.53V)   5.2V

 アルカリ電池使うとすぐにヘタレて墜落するというかなりダメな子。故に電源が取れない場所での緊急避難的な使い方が出来ない。


 LinkMan BP-1(単三4本)
       D+ D- 解放
       改造  可
       給電  可
       充電  不可
eneloop(1.39V)   5.3V
EVOLTA(1.53V)   6.1V

 DC-DCコンバータMC34063A。420円とゲロ安なのが特徴。Aオスのリトラクタケーブルまで付いてて充電まで出来るスグレモノ。いったいどうやって採算合わせてんだか。改造しておけばアダプタ要らず。


 次世代DLG モバイル充電器CUBE PORTER RX4-C(単三4本)
       D+ D- 回路
       改造  不要
       給電  可
       充電  不可
eneloop(1.39V)   5.35V
EVOLTA(1.53V)   6.2V

 未加工で使用可だが、写真の通り燃えます。DC-DCコンバータMC34063。火こそ出ないが臭かった。


ACアダプタ部門
○無加工使用可 △アダプタ使用で利用可 ×使用不可

×USB2.0規格がちゃんと守られたUSBポート。500mA以上流れると給電が止まり使用不可。
 充電するつもりでその辺のPCに繋ぐと、通信によってむしろ電池が減る。

×ダイヤテック PLS5USB
 1Aってウソだな。おそらくAC240V印加時に限る話なのだろう。



参考:パート30 >>695氏
http://anchorage.2ch.net/test/read.cgi/keitai/1265537993/

充電条件まとめ(仮)

結線の条件
D+とD-の結線が必須、専用充電器は0オーム短絡。
ミヤビックスのWS020SH用のコネクタはD+とD-が解放されているため充電不可。

充電への流れ(電池残量約50%での場合。残量が異なっていても大差は無いと思います。)
1,電源のテスト
接続された電源に負荷(今回5V印加の場合約660mA)を掛け、
安定している電源か確認される。
約4.75V以上なら充電開始、4.75V未満なら再度負荷を掛けチェック、
数回チェックが通らないと充電不可と判断し通電されない。

2,充電中の電圧監視
充電中、供給される電圧が約4.70V未満になると充電を停止。
なお、充電時に流れる電流は約810mA。


∴充電にはD+とD-が結線されたケーブルと、660mA時4.75V、800mA時4.70V以上を
安定して供給できる電源が必要。

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