| 摘要 |
<p>PURPOSE:To obtain a pulse signal with a pulse width proportional to an input pulse width independently of the accuracy and characteristic of a time constant circuit and independently of the temperature and power voltage by using a pulse width voltage conversion circuit converting a pulse width into a voltage so as to convert the input pulse width into the voltage thereby generating the output pulse. CONSTITUTION:In a time constant circuit comprising a capacitor C and a constant current circuit 11, a potential proportional to the input pulse width is charged in the capacitor C by the constant current circuit 11 and the capacitor C is discharged by the constant current circuit 11 when the input trigger pulse is inputted and the discharge characteristic is used for generating the output pulse width. Thus, the output pulse width is independent of the temperature and power voltage and the monostable multivibrator obtaining the pulse width output proportional to the input pulse width without requiring the constant current and the accuracy of the capacitor is obtained.</p> |
