| 摘要 |
PURPOSE: An automatically switching and changing pager of supplementary power supply is provided to preserve data of a pager memory by automatically converting into the supplementary power supply, even when a battery of main power supply is consumed, and to remove inconvenience to input data whenever alternating a new battery. CONSTITUTION: A pager for automatically convert into supplementary power supply comprises a power supplier, a microprocessor, and a converter. The power supplier is composed of main power supply and supplementary power supply, connected to a memory of a pager, and supplies the power supply to the memory of a pager. The microprocessor senses a power state of the power supplier, and selectively supplies the main power supply and the supplementary power supply by a power state signal. The converter mutually converts the main power supply and the supplementary power supply by a selection signal of the microprocessor. The converter is composed of a first electrode plate, a second electrode plate, and an insulating plate. The first electrode plate is a ground plate. The second electrode plate is contacted with the first electrode plate by being moved to an upper end by an elastic member, when removing the main power supply. The insulating plate is equipped on the upper end of the second electrode plate.
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