| 摘要 |
<p>PURPOSE:To realize the fault detection with an extremely small amount of loss for the SCR magnetic system by making use of the output waveform generated from the control circuit consisting of the trigger signal generation part, the delay circuit and others. CONSTITUTION:In addition to the conventional circuits, the pulse radar transmitter incorporates 1st HAND circuit 20 to obtain the NAND of the output between 1st trigger signal generation part 13 and delay circuit 15, pulse generator circuit 21 to generate the pulse by the output of circuit 20 and 2nd NAND circuit 22 to secure the NAND of the output between 3rd trigger signal generation part 16 and circuit 21 each. And these circuits form fault detector circuit 23. In the faulty mode, waveform e features a low level constantly, and accordingly waveform f which is the NAND waveform of waveforms e and c feature a high level constantly. Thus the pulse waveform is obtained like the NAND waveform h of waveforms g and d, accordingly detecting the fault. As this circuit can be formed with the IC, a small and light-weight structure becomes possible.</p> |
