| 摘要 |
In a first embodiment multiple power sources are selected and then combined. Selecting power rather than controlling power may be a cheaper way of controlling the amount of power delivered. In a second embodiment the logic to control power is removed from the battery charger so that the logic may be changed when a different battery is being charged. This permits all types of batteries to be charged if the power source is compatible with the battery. Other embodiments expand the types of power sources that may be used.
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