| 摘要 |
The system comprises a power source (1), a converter (2) for supplying the adequate voltage to peripheral circuits, in which includes a voltage detector (201) for checking the input voltage of the converter, a displayer (4), a controller (5) including a voltage detector (505) checking the input voltage of the controller and a memory (7), a transceiver (6) including a high frequency switch (605) which is disconnected when the detector (201) provides low signal, and a memory (7) for storing the control information. When the voltage of the converter drops under certain level, a condenser (504) in the controller provides the compensation voltage to a CPU (1) and the memory.
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