| 摘要 |
PURPOSE:To eliminate the need for a table, to generate a precise sine wave, and to adapt the sine wave generator to a software process. CONSTITUTION:The output of an integration circuit 12 is supplied to an integration circuit 11, whose output is inverted and supplied to an integration circuit 12. Namely, the signal is looped on the whole to constitute an oscillation circuit. In this case, its oscillation is started by presetting a delay circuit 2 or 5 to '1'. Then the signal generated by integrating an output signal X twice and inverting its sign becomes equal to the output signal X again, so that the generation of a sine waveform can be understood. |
