PURPOSE: To suppress a reverse current of the output of an inverter to the input side to increase an effective signal current by connecting the output side of the inverter, which is connected to the secondary side of a transformer through an LPF, to the secondary side of the transformer through an HPF.
CONSTITUTION: An inverter 3 which generates a high frequency for signal is connected to a secondary winding N2 of a transformer 2, which is connected to a high voltage power supply line 1, through an LPF7 which has a low impedance for a commercial frequency and has a high impedance for the high frequency for signal. An HPF4 which has a high impedance for the commercial frequency and has a low impedance for the high frequency for signal is connected to the output side of the inverter 3, and the output is connected to the winding N2 through connection points 5 and 6. Thus, the reverse current of the high frequency output for signal to the inverter 3 is reduced to transmit efficiently signals to a winding N1, and answer back is facilitated.
WATANABE SUSUMU
KAMIMURA RIYOUICHI
| JPS50120712A | 1975-09-22 | |||
| JP48081723B |