- Reaction score
- 2,045
This might be a silly question and after 20 years doing this I probably should know the answer, but can a switched mode power supply and an led driver be the same thing?
Example: I had a job the other day and I got a ‘while you’re here request’. Customer has a couple of 12v deadbolts to lock some fancy bifold doors. Crap idea imo as it seems as though in a power cut they will just unlock?!
Anyway, they stopped working a while back. Asked me to investigate. Good customer of mine and didn’t want to take no for an answer! I located the power supply hidden in an adjacent cupboard. Marked 12v dc - 2 amps - switched mode power supply. Tested the output with multimeter. Nothing. Looked like it had been wet at some point too. Decided it was dead!
Went and looked in the van. Found Led driver marked 12v dc - 2.5 amps. Connected up and it didn’t work although showing 12.7v dc with meter . Obviously there could be another fault with the locks but is there any reason why this wouldn’t have worked?
Is a 12v dc power supply the same whether it’s marked led driver or switched mode power supply?
Does the fact that the replacement part was rated at 2.5amps rather than the 2.0 amps of the original part have any bearing?
Cheers
Example: I had a job the other day and I got a ‘while you’re here request’. Customer has a couple of 12v deadbolts to lock some fancy bifold doors. Crap idea imo as it seems as though in a power cut they will just unlock?!
Anyway, they stopped working a while back. Asked me to investigate. Good customer of mine and didn’t want to take no for an answer! I located the power supply hidden in an adjacent cupboard. Marked 12v dc - 2 amps - switched mode power supply. Tested the output with multimeter. Nothing. Looked like it had been wet at some point too. Decided it was dead!
Went and looked in the van. Found Led driver marked 12v dc - 2.5 amps. Connected up and it didn’t work although showing 12.7v dc with meter . Obviously there could be another fault with the locks but is there any reason why this wouldn’t have worked?
Is a 12v dc power supply the same whether it’s marked led driver or switched mode power supply?
Does the fact that the replacement part was rated at 2.5amps rather than the 2.0 amps of the original part have any bearing?
Cheers