Скачать с ютуб simplest off delay timer в хорошем качестве

simplest off delay timer

Hello, I will show you how to make an off-timer delay. This circuit is simple and uses only 3 electronic components. The off time of this circuit is around 15 seconds. But you can change the R-value to increase or decrease off time. I measure off timer from R1 = 10 kilo-ohms and C = 1000 micro-farad = 15 seconds so you can decrease R1 to 5 kilo-ohms for around 7.5 seconds off timer and about 1.5 seconds for 1 kilo-ohm R1 value. This circuit is for a simple auto shut-down circuit that doesn't need a very accurate timer, if you want a more precise timer you may use the ic 555 circuit instead.