| 摘要 |
PURPOSE:To constitute the generator without using a large capacity of memory, by changing the set value from the recorded value of the 1st buffer register to that of the 2nd buffer register or vice versa alternately, every time when the count value of a preset counter reaches a set value. CONSTITUTION:On-time and off-time are respectively set to an on-time setter 6 and an off-time setter 7, and they are converted into binary number respectively at the 1st and 2nd encoders 8, 9 and stored in the 1st and 2nd buffer registers 10, 11. The preset counter 12 counts the output pulse of a pulse generating circuit 13, and when the count value is in coincidence with the set value, the output pulse is produced and T bistable element 21 is inverted, to alternate the set value. |
