Long delay circuit using integrated circuit 2
Source: InternetPublisher:aerobotics Keywords: Delay circuit integrated circuit BSP CD4069 Updated: 2021/10/07
Long delay circuit using integrated circuit 2
(a) is shown. It is actually a JSJ-1 type time relay circuit. It uses CD4069 six-
phase inverter as delay control. Figure (b) shows the pin arrangement of CD4069
.
The delay time of the timer is from when the power is turned on to when the relay KA closes.
Adjusting the potentiometer RPi can change the oscillation frequency of the RC oscillation circuit composed of the NOT gate inside the integrated circuit A. Adjust
RPz, RP3 (and RPi) to change the delay time.
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