One aspect of a project I am working on that is in the prototype phase involves taking 110V or 220V AC (depending on install location) and converting it to a 9V DC output to power some PCBs. Our current solution is a COTS AC/DC converter, which works fine for the initial development and prototyping. We have a second project that involves a COTS DC/DC converter with a Deep Cycle Battery to keep a steady 12V output with high amps regardless of the charge % of the battery.
For the future effort, I want to design my own AC/DC converter using the most miniaturized components available to get the same output and amps in a small package size. Likewise I want to design my own DC/DC converter with similar goals.
Can anyone point me in a good direction towards resources to accomplish this? The main goal is taking a schematic of some decent converters and redoing them using more expensive, smaller parts and a custom PCB. I know that off the shelf converters don't use the most expensive stuff and are not as miniaturized as possible due to keeping cost down, but for our projects cost is not that important. At first glance I'm thinking swapping out the big through hole parts for as small of SMD resistors and ceramic caps I can get away with regarding watt and voltage maxs, and then QFN style ICs instead of DIPs and such. Perhaps a 6 layer board as opposed to 2 or 4 layer that the COTS converters are to squeeze things closer together. Also removing all quality of life peripherals like connectors, buttons, leds ect. and making it as bare bones as possible with simple soldered wires to pads.
Thanks in advance!
For the future effort, I want to design my own AC/DC converter using the most miniaturized components available to get the same output and amps in a small package size. Likewise I want to design my own DC/DC converter with similar goals.
Can anyone point me in a good direction towards resources to accomplish this? The main goal is taking a schematic of some decent converters and redoing them using more expensive, smaller parts and a custom PCB. I know that off the shelf converters don't use the most expensive stuff and are not as miniaturized as possible due to keeping cost down, but for our projects cost is not that important. At first glance I'm thinking swapping out the big through hole parts for as small of SMD resistors and ceramic caps I can get away with regarding watt and voltage maxs, and then QFN style ICs instead of DIPs and such. Perhaps a 6 layer board as opposed to 2 or 4 layer that the COTS converters are to squeeze things closer together. Also removing all quality of life peripherals like connectors, buttons, leds ect. and making it as bare bones as possible with simple soldered wires to pads.
Thanks in advance!