| 摘要 |
<p>A coupling diode, whose forward direction coincides with the control direction, is inserted between the output controller and the input of the following controller. The system control state, represented by the diode d.c. potential is applied to a voltage comparator for tripping a central process controlled by the input controller. Comparator signal, delayed by a Miller integrator, is applied as a control signal to a transistor relay switching a signalling circuit, or directly to a signal generator. A d.c. potential is applied behind the coupling diode by a potential generator. This potential is set by a selector to a characteristic controlling the tripping process.</p> |
