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DC-DC Converter Solutions
Space Bourne Distributed Power Architecture (DPA) Solutions
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A generic example of such DPA system is depicted below. The high efficiency Zx or GH series is ideal as the intermediate bus converter (IBC) converting a spacecraft’s unregulated or regulated bus voltage to an intermediate voltage of 5V. The SBB series point of load (POL) voltage regulator modules are used to provide the low supply voltages to the digital loads. The DPA power system offers many design benefits now that the newer digital devices require lower supply voltages and higher current. The benefits include reduced distribution losses, improved steady state and transient performance, optimum heat distribution, and smaller distribution cables and harnesses. Additionally, each POL can be optimized independently for their functions; future design upgrade can also be easily achieved with or without very minimum mechanical reconfiguration.
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