Hi All
Now to preface I am completely new to amp building but have been around the pedal thing for a while. Starting to try and piece an amp design together in my head and think I've settled on a TDA2030A power amp. Initially thinking I'll build the power amp all +18V DC as I understand how V+ to GND works from my pedals, so the schematics make more sense.
Here is the schematic I am looking to use. It's the generic single supply one from the datasheet:
For the voltage I am looking to run it at +18V DC since the preamp I am looking to build will run at +18V DC. Now I know I could just get an +18V wall wart but I thought I'd try and get my head around being able to build the amp so I can just plug 240V into it (Australian) and have the amp convert to +18V DC. Now I know nothing about how this works but from looking at schematics, is something like this what I need:
https://www.jaycar.com.au/12v-18v-18va-1a-multi-tapped-type-2154-transformer/p/MM2011
If so, secondly do I just wire 240V to one side and then the 18V to the other side to my circuit and the GND to 0V? Seems too simplistic to me so I imagine there is more to it. Also do I need to mount a transformer in a certain way to reduce heat or similar? Does it need a fuse? As you can see I am right at the start.
Worst case I'll wire a +18V DC wall wart into the circuit, just trying to learn something new along the way.
Thanks so much in advance.
Now to preface I am completely new to amp building but have been around the pedal thing for a while. Starting to try and piece an amp design together in my head and think I've settled on a TDA2030A power amp. Initially thinking I'll build the power amp all +18V DC as I understand how V+ to GND works from my pedals, so the schematics make more sense.
Here is the schematic I am looking to use. It's the generic single supply one from the datasheet:
For the voltage I am looking to run it at +18V DC since the preamp I am looking to build will run at +18V DC. Now I know I could just get an +18V wall wart but I thought I'd try and get my head around being able to build the amp so I can just plug 240V into it (Australian) and have the amp convert to +18V DC. Now I know nothing about how this works but from looking at schematics, is something like this what I need:
https://www.jaycar.com.au/12v-18v-18va-1a-multi-tapped-type-2154-transformer/p/MM2011
If so, secondly do I just wire 240V to one side and then the 18V to the other side to my circuit and the GND to 0V? Seems too simplistic to me so I imagine there is more to it. Also do I need to mount a transformer in a certain way to reduce heat or similar? Does it need a fuse? As you can see I am right at the start.
Worst case I'll wire a +18V DC wall wart into the circuit, just trying to learn something new along the way.
Thanks so much in advance.
