i've developed a lasting obsession with current load-balancing #electronics #diy
@fmn what are you balancing? Is there more circuitry on the secondary side?
@fullywoolly those are voltage regulators sharing burden of current load via diode. another such module will be added in parallel. board is a test of how evenly load will split without "smart control" when current is changing a lot. power traces are calculated to have same length, resistance etc. most likely i will compare it with setup driven by two hall current sensors and a microcontroller ironing out any imbalance. setup is based on this doc: https://www.st.com/resource/en/application_note/an4381-current-sharing-in-parallel-diodes-stmicroelectronics.pdf
@fmn curious what you find out. I only skimmed the white paper but kinda confirmed what I've seen before with hooking a supply to two diodes copacked, one diode usually turns on first at hogs the current.
@fullywoolly this is what common knowledge is, i think, and this is what i've experienced also but without a diode. with a diode it's more even - this observation triggered me to go bit further. supossedly "sameness" of components, temperature and resistance plays a vital role.
@fmn 54W that heat sink is doing some work!