To design & study the two range 1-10 minute and 10-100 minute variable duration timer using IC 555, IC 4020
The output of the 4020 IC drives the transistor which turns "ON" the relay
(i) + 12V/500mA power supply
(ii) 230V mains operated
To design & study the two range 1-10 minute and 10-100 minute variable duration timer using IC 555, IC 4020
The output of the 4020 IC drives the transistor which turns "ON" the relay
(i) + 12V/500mA power supply
(ii) 230V mains operated
