Sunday 17 February 2019

power supply - 230V to 12V step down transformer


I'm making a water level indicator using an 89C51 for which I need 5 V input voltage. I used a 230 V to 12 V step down transformer and a regulator to get 5 V.


I got the 5 V but then the transformer started giving an output of 4.4 V instead of 12 V.


Can you please suggest the possible causes for this problem?


Power supply schematic:





No comments:

Post a Comment

arduino - Can I use TI's cc2541 BLE as micro controller to perform operations/ processing instead of ATmega328P AU to save cost?

I am using arduino pro mini (which contains Atmega328p AU ) along with cc2541(HM-10) to process and transfer data over BLE to smartphone. I...