bz
发帖数: 1770 | 1 买了个USB charger. 就是一边是wall plug, 一边是USB口的, 输入是100-240V AC, 输
出是5V/1A, 可以用来charge所有其他的电器（手机，PDA什么的），用IPOD TOUCH自带
的USB线插上说“charging not supported by this fxxx", 然后就是不充电。 把IPOD
线直接插PC上就OK。所以不是单纯线的问题或者是charger的问题，像是兼容性的问题
。有没有解决方案？不然就真的WTF了。 |
k******g
发帖数: 1540 | 2 ipod 要发一个信号确认才能充电。 所以以前的USB充电器不能用了。网上有人加个电
阻就可以充电。google 能够找到。 |
bz
发帖数: 1770 | 3 it turned out that not all usb chargers are the same due to lack of a
charging spec till one was created in March 2009. Most of the hacks I found
online did the work on the charger itself, be it a usb one or car cig one. I
am wondering if some succeeded in making a usb cable that work with all the
old and new USB chargers? Thanks!
【在 k******g 的大作中提到】
: ipod 要发一个信号确认才能充电。 所以以前的USB充电器不能用了。网上有人加个电
: 阻就可以充电。google 能够找到。
|
M***e
发帖数: 5360 | 4 我刚收到了一套充电套装,usb cable(和原带的接口一样的),wall charger adapter,
car charger adapter, external battery, 不管怎么接都好用...现在理论上开车跑远
途也不怕领导抱怨游戏没电玩了... |
t****g
发帖数: 35582 | 5 这个只能怪apple，可能是不想让人用山寨的usb charger吧，一直在改充电接口协议。
iPhone 3G或者iPod touch的话，需要USB的D+在2V-2.2V之间，D-在2.8V-3V之间。
很多USB charger根本就不在D+和D-两个pin上面加电压，管你怎么样的usb cable也没
戏。你可以把usb charger拆开，然后做两组分压电阻给这两个pin加上合适的电压就行
了。iPhone在这两个pin上只draw 100uA的电流，所以用10K-100K级,1/8W的电阻就可以
了。
found
I
the
【在 bz 的大作中提到】
: it turned out that not all usb chargers are the same due to lack of a
: charging spec till one was created in March 2009. Most of the hacks I found
: online did the work on the charger itself, be it a usb one or car cig one. I
: am wondering if some succeeded in making a usb cable that work with all the
: old and new USB chargers? Thanks!
|
bz
发帖数: 1770 | 6 i.c. I saw someone on the net talking about shorting D-/D+, someone said it
worked, someone said no. hopefully newer usb wall chargers will work. I
guess I just had an old charger shipped to me. The car cig charger came in
the same package works...
one.
【在 t****g 的大作中提到】
: 这个只能怪apple，可能是不想让人用山寨的usb charger吧，一直在改充电接口协议。
: iPhone 3G或者iPod touch的话，需要USB的D+在2V-2.2V之间，D-在2.8V-3V之间。
: 很多USB charger根本就不在D+和D-两个pin上面加电压，管你怎么样的usb cable也没
: 戏。你可以把usb charger拆开，然后做两组分压电阻给这两个pin加上合适的电压就行
: 了。iPhone在这两个pin上只draw 100uA的电流，所以用10K-100K级,1/8W的电阻就可以
: 了。
:
: found
: I
: the
|
N**D
发帖数: 10322 | 7 给个link 吧？
【在 M***e 的大作中提到】
: 我刚收到了一套充电套装,usb cable(和原带的接口一样的),wall charger adapter,
: car charger adapter, external battery, 不管怎么接都好用...现在理论上开车跑远
: 途也不怕领导抱怨游戏没电玩了...
|
N**D
发帖数: 10322 | 8 还是htc 好啊，偶的garmin 的车载充电器，插上就可以给it 充电
i.c. I saw someone on the net talking about shorting D-/D+, someone said it
worked, someone said no. hopefully newer usb wall chargers will work. I
guess I just had an old charger shipped to me. The car cig charger came in
the same package works...
one.
【在 bz 的大作中提到】
: i.c. I saw someone on the net talking about shorting D-/D+, someone said it
: worked, someone said no. hopefully newer usb wall chargers will work. I
: guess I just had an old charger shipped to me. The car cig charger came in
: the same package works...
:
: one.
|
M***e
发帖数: 5360 | 9 http://www.13shopping.com/Show.aspx?PID=982,不过我还没敢直接用这个充it,我都是拿这个充外置电池然后再用外置充it
【在 N**D 的大作中提到】
: 给个link 吧？
|
N**D
发帖数: 10322 | 10 谢了
【在 M***e 的大作中提到】
: http://www.13shopping.com/Show.aspx?PID=982,不过我还没敢直接用这个充it,我都是拿这个充外置电池然后再用外置充it
|
k******g
发帖数: 1540 | |
