The new Delta high-power isolated DC-DC voltage conversion module works very well. The original is equipped with a large-area heat sink, which is estimated to be used in the high-reliability communication industry.
The power module input voltage is 38-55V 17A, the output is 9.6V55A, and the maximum power is 528W. The thickness of the multilayer circuit board is 3.4mm, and the transformer coils are integrated in the circuit board. The workmanship is very good. However, the accuracy of this power supply's nominal voltage of 9.6V is not very good. Actually, when I test the voltage input 55V, the output no load is close to 11V, and when the load is 10A, the voltage is 9.7V, which may be to consider the large current drop.
This module is a high-power small-volume module. Although it has a tropical aluminum heat sink, it is necessary to add a fan to force heat dissipation.