| 摘要 |
The device includes, in a housing, an actuator electrically connected to a battery for charging a portable item such as a mobile terminal. For a rotating actuator comprising a first member submitted to an oscillatory motion, for example a walker carrying the housing, and a second member making up at least partially a mass part, the mass part is able to oscillate around the axle of the armature with respect to the first member. A servo control system can control the actuator sometimes as a motor supplied by the battery or by allowing the mass part to move freely, sometimes as a generator charging the battery, by slaving the motion speed of the mass part to the acceleration of the oscillatory motion of the first member. This enables to recover as much electric power as possible from the walker. |
