| 摘要 |
PURPOSE:To maintain the output of a signal circuit at a prescribed value by comparing the output of the signal circuit with set data by correlating the output with a prescribed signal output read out of a storing section and rewriting the data stored in a memory section based on the signal obtained as a result of the comparison. CONSTITUTION:Output signals are converted into digital signals by means of an A/D-converting section 8. A comparing section 10 compares the digital signals with data read out of a storing section 9 through a control section 11 and outputs a signal corresponding to the difference between the digital signal and stored data as a signal circuit 1 adjusting signal for rewriting the stored data. Rewritten data are read out and inputted to a data holding section 6 and the section 6 holds the new data. Therefore, an adjusting signal outputted from a D/A converting section 7 is modified based on the rewritten data. |
