摘要 |
PURPOSE:To accurately control gate pulse without shortening a sampling time by adding a simple hardware to a gate pulse control by a microcomputer. CONSTITUTION:A gate pulse controller by a microcomputer 1 has the first third buffers 2-4 with latches, the first and second timers 6, 7, and a forcibly pattern output circuit 8 having a delay circuit 9 for the prescribed time, and a discriminating flip-flop 10. Thus, a gate pattern signal GP1 and a pattern forcible output signal SP1 are simultaneously written in the buffer 1 and held in the buffers 3, 4 by the microcomputer 1. The output circuit 8 delays an input load signal LP1 to the buffer 3 for the prescribed time when the counted time of the timer 7 becomes longer than the RTC signal output period of the timer 6, and a gate pattern signal GP3 is loaded to the buffer 4 during the period. |