| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication processing control circuit which can be used in common in an AC power source and a DC power source and can use a transformer of a low withstand voltage. SOLUTION: In the communication processing control circuit provided with a communication control CPU 11 and a power line communication unit 17 that is controlled by the communication control CPU 11 and performs power line communication processing, two inductors 8, 9 are serially connected between a power input terminal 16 and a power source circuit 2, a transformer 7 is connected between transmitting and receiving terminals 14, 15 and the power source circuit 2, a filter in which two capacitors 4, 5 are serially connected and one resistor 6 is connected in parallel is provided between the transformer 7 and the power source circuit 2. COPYRIGHT: (C)2005,JPO&NCIPI
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