Hey All
Just wanted to update. I have gone away and done a good session of learning about transformers, rectifiers and power regulators and I think I'll be able to to build this now if I buy the correct transformer. I am acutely aware that 240v is lethal, so I have taken all that into consideration.
Rectifier and smoothing caps aside (have that mentally sorted), to run 18v DC well, I will require an 18v voltage regulator, which I'm pretty confident is this one:
https://www.taydaelectronics.com/catalogsearch/result/?q=lm7818
and a transformer that puts out a slightly higher voltage than I want to regulate, such as 240v primary with 21v or 24v seconday?
Just want to confirm I'm on the right track?
For anyone interested here is the great transformer video I started with which led me to the same guys rectifier and voltage regulator videos. Learnt heaps:
https://www.youtube.com/watch?v=GMePE7NZcxw
Thanks again for everyone's help. Feeling confident about all this now.
Just wanted to update. I have gone away and done a good session of learning about transformers, rectifiers and power regulators and I think I'll be able to to build this now if I buy the correct transformer. I am acutely aware that 240v is lethal, so I have taken all that into consideration.
Rectifier and smoothing caps aside (have that mentally sorted), to run 18v DC well, I will require an 18v voltage regulator, which I'm pretty confident is this one:
https://www.taydaelectronics.com/catalogsearch/result/?q=lm7818
and a transformer that puts out a slightly higher voltage than I want to regulate, such as 240v primary with 21v or 24v seconday?
Just want to confirm I'm on the right track?
For anyone interested here is the great transformer video I started with which led me to the same guys rectifier and voltage regulator videos. Learnt heaps:
https://www.youtube.com/watch?v=GMePE7NZcxw
Thanks again for everyone's help. Feeling confident about all this now.