13Alex13, я не знаю, про какие загадки вы говорите. Но, если это ко мне, то про различия модулей написано в их описании, к примеру,
можете посмотреть здесь.
На всякий случай, если у вас нет интернета:
1. DPS series are updated version. Panel is different. In DPS series, we change the M1/↑and M2/↓ into V/↑and A/↓. You can press those buttons set the voltage and current fast. We add a new function “set default boot open or close output”
Others are not changed.
2. DPS5005 and DP50V5A can charge the battery directly, don't need diode. When charging battery, don’t connect battery polarity reversely, otherwise, power parts will bunt.
Find the difference between DPS and DP see this video
https://www.youtube.com/watch?v=ptt931rrXo83. DP power supply and DPS power supply are all buck (step-down) converter. But DPH3205 is buck-boost (step-down and step-up )converter.
4. DPS3005-C , DPS5005-c, DPS5015-C. and DPS5020-C are communication version. You can connect PC and use upper computer