| 摘要 |
<p>PURPOSE:To improve reliability and to prevent the generation of noise, by providing an overlapping means which overlaps a transmission signal, outputted from a signal transmission control circuit actuated according to the decision result of the output level of a rectifier, by means of an output from the rectifier. CONSTITUTION:It is decided by a voltage level deciding circuit 5 whether the output level of a rectifier diode 3 exceeds a given value (d). When it is decided that the output level of the rectifier diode 3 does not exceed the given value (d), a signal transmission control circuit 7 and a signal generating transistor 8 are actuated to output a signal through a diode 9. A voltage signal (c) is inputted to a control part circuit 13, and it is decided by a comparator and the like whether the signal exceeds a level (e) in a deciding circuit incorporated in the circuit 13. When below the level (e), the number of pulses is set during the period, the number of pulses during a set period or the set number of pulses can be received as a signal. Therefore, a signal generated by a signal transmission control circuit 7 on the controller side and a signal generating transistor 8 can be restored by a control part circuit 13.</p> |
