| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic device comprising a dual-purpose inductive element such as a miniaturized electronic device. SOLUTION: The disclosed electronic device comprises: an inductive element 101 configured to function in a communication mode as an antenna for picking up communication signals, and in a power conversion mode as an inductive element configured to be the energy storage inductor in a switching regulator used for conditioning the power available from an internal power source for power to operate the device; and a controllable switch for switching the communication mode to the power conversion mode. The communication system further comprises controllable switches 102 and 103 for connecting the inductive element 101 to either a receiver 106 or a power conversion circuit 104. The controllable switch switches the system between the communication mode and the power conversion mode by means of unipolar or bipolar transistor switches or by mechanical switches or relays. The communication system may be used as an in vitro medical device. COPYRIGHT: (C)2007,JPO&INPIT
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