electronic timing circuit
Source: InternetPublisher:兰博 Keywords: Timing circuit MDASH Updated: 2020/02/25
Shown is an electronic timing circuit . The timer is an electronic device used to preset time and timer prompt alarms, and give instructions to the
user . In the figure, NE555 is designed as a multivibrator with an oscillation frequency between 582.4 Hz and 17.48 kHz. CD 4024 and
CD4020 together form a 2∞ frequency divider. CD 40107 is the drive circuit. The timing time of this circuit is 1-30 min. .
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