| 摘要 |
AC POWER SUPPLY CIRCUITRY There is disclosed AC power supply circuitry comprising: an AC power source (1); a semiconductor switching device (2) in a power line (8) between the power source and an output; means (4) for switching the semiconductor device between a first state in which it transmits power from the source to the output and a second state in which it does not transmit power to the output; and means (11, 12) for coupling communications data on to the power line, the circuitry further comprising means (10) for causing communications data to be coupled on to the power line only if said semiconductor device is in said first state. (Fig. 3) SOLID 8IN-LINE COTOL C DIP MODULEF CPLC ~13 POWER MODLE 10 SWITCH POWER MODEM 11 MONITORS |
