| 摘要 |
A portable electronic device includes a battery, a normal charge module, a solar powered module, and a switch. The normal charge module charges the battery from a commercial power source. The solar powered module includes a solar panel and a voltage converting circuit, the solar panel converts light into electricity outputs a voltage of the electricity to the voltage converting circuit, the voltage converting circuit converts the voltage output from the solar panel into a charging voltage, and rectifies and filters the charging voltage which is then output to the battery, to charge the battery. The switch selectively connects the battery either to the normal charge module or to the solar powered module. |
