| 摘要 |
PURPOSE:To miniaturize a system and to omit the final adjustment by incorporating a DC reproducing converter consisting of the same circuit as an A/D converter into this converter. CONSTITUTION:An end of a capacitor C is connected to an analog input signal with the other end connected to a comparator 1 and a switch 4. The capacitor C is also connected to a DC reproducing converter 2 consisting of the same circuit as a converter 1 via a switch 4. This switch 4 functions to apply the output of the converter 2 to the capacitor C within a period of a synchronizing signal with the pedestal signal of the analog input signal. The output of the comparator 1 is connected to an encoder 5; while the comparators 1 and 2 are connected to a reference level generating source 3 respectively. As a result, a converter system can be miniaturized and furthermore the final adjustment can be omitted since no effect is given from the variance of elements. |
