5v output of pic18f to 12vdc

[zelsenussi]

relay pic18f

i have output (5V)DC from microcontroller pic18f but i need to connect it with electric lock need (12V)DC to work(open )..............how can i make (5V)DC output from pic to (12v)DC

 

[amol_shah]

using npn with pic18f

connect an NPN transistor to the pin here is a ckt for interfacing relay to a micro controller just replace the relay with an electronic latch
https://www.dnatechindia.com/index.php/Tutorials/8051-Tutorial/Relay-Interfacing.html

 

[TekUT]

Be carefully in using this circuit, check if the outport port that you can think to use is a open collector type, otherwise put a resistor in series to the transistor base in order to limit the transistor base current.

Cheers
Powermos

 

[sekonder85]

12V DC relay can be used. You can control the relay with PIC 5V and can supply your circuitry 12V by using this relay.

 

[ecnbom]

Attached picture is just a switch circuit.
Pls refer to MC34063 to get information of step-up circuit.