I am doing some learning/experimenting with SMPS, among other things. I am placing an order for parts soon and thought it wise to purchase a few items that I would use. In relatively simply supplies there is a diode, sometimes called a catch diode (maybe other things). I understand it needs to be fast. I could use help in describing the diode characteristics so that I can purchase some common (hopefully) parts to get started. Descriptions or even suggested part numbers would be appreciated.
Right now I plan to stick to 13.8 vdc or less and 2 or 3 amps. I am being encouraged to take 13.8 vdc from car and use buck to get steady 8 volts as a first step. Next step would be to take the 8 volts back up to 13.8 vdc. Whole point is learning but as a practical matter I'd like to have a power supply that will provide a steady 2 amps at 13.8 vdc (or thereabouts) from the nominal 12 volt accessory (used to be cigarette lighter) outlet in a car.
Again, help with describing a diode would be appreciated.
Right now I plan to stick to 13.8 vdc or less and 2 or 3 amps. I am being encouraged to take 13.8 vdc from car and use buck to get steady 8 volts as a first step. Next step would be to take the 8 volts back up to 13.8 vdc. Whole point is learning but as a practical matter I'd like to have a power supply that will provide a steady 2 amps at 13.8 vdc (or thereabouts) from the nominal 12 volt accessory (used to be cigarette lighter) outlet in a car.
Again, help with describing a diode would be appreciated.