| 摘要 |
PURPOSE:To shorten an apparent reset time by sufficiently spending the charging and discharging time of the capacitor of a feedback circuit. CONSTITUTION:When analog switches 13 and 16 are closed, a voltage added to an input terminal 1 is charged in a capacitor 4. Next, when the analog switches 13 and 16 are opened, and analog switches 14 and 15 are closed, the charge is added to the (-) input terminal of an operating amplifier 50. At the same time, analog switches 32 and 33 are closed, and a capacitor 10 is charged. In the next cycle, the capacitor 10 is discharged, analog switches 36 and 37 are closed, and a capacitor 11 is discharged. Thus, the sufficient charging and discharging time can be ensured, and the apparent reset time can be shortened by alternately using the capacitors 10 and 11. |
