Relay ON/OFF Delay timer circuit using NPN Transistor and Capacitor

Relay ON/OFF Delay timer circuit using NPN Transistor and Capacitor
#timer delay circuit #Relay ON/OFF Delay timer circuit #Relay Delay circuit

[@tindicio44]

Good job

[@Ademilhan3460]

*nice work*

[@viciriucandreea5835]

Ok ok felicitari

[@wibowoims527]

Good idea.
Simple but usefull....👍
If we want to change delay_duration, which one should replace.... resistor or capasitor?

[@teku3985]

Cap

[@wibowoims527]

@@teku3985
Ok. Thanks...👍

[@teku3985]

@@wibowoims527 Yeah, just use a baseline resistor like 1k or like 10 ohm. Then record the time on a graph then you can calculate the amount of capacitance required for a specific time. That’s how I fixed my air conditioner.

[@wibowoims527]

@@teku3985 Clear.....👍

[@mohammedaslamsahab2661]

kya isko 9v ki jaga 12 pe chala sakte hai kya

[@valdomirosilva4127]

A good brother project! How to connect a potentiometer in this project ? Thank you very much

[@Z-Ack]

Used a 2n3904 and switched it around to work right (is opposite than bc547). Used a 9v source and fucker blew its lid... thought 2n3904 handled bigger loads than bc... but your circuit is not right, i had to run wire from switch to pin connecting npn to relay..

[@areebahmad1484]

How to increase the timing bro

[@mirceagivan9659]

change cap value and rezistance the higher=more time