Mixed signal conversion, isolation, and transmission for aerospace multi-channel data and power interface systems

摘要

An electrical power distribution system for a vehicle may comprise two or more independently grounded buses. An evaluation system may selectively connectable to either of the buses. The evaluation system may comprise a primary side; and a secondary side isolated from the primary side. The primary side may be connected to transmit evaluation data to the secondary side. The primary side may be grounded at a primary grounding level. The primary side may be connectable to either of the buses so that, when connected, the grounding level of the primary side is equalized with a grounding level of the connected bus.

主权项

1. An electrical power distribution system for a vehicle, comprising:
two or more independently grounded buses; and an evaluation system including a primary side grounded at a first grounding level Gp and a secondary side grounded at a second grounding level, the evaluation system selectively connectable to at least one of the two or more independently grounded buses, the primary side configured to transmit evaluation data to the secondary side; a measuring device isolated from the primary side; a high-voltage isolation device comprising a DC-DC converter configured to transmit high-voltage data from a connected one of the two or more independently grounded buses to the measuring device, a low-voltage isolation device configured to transmit communications data from the connected one of the two or more independently grounded buses to the measuring device, wherein the measuring device isolated from the connected one of the two or more independently grounded buses while receiving data from the connected one of the two or more independently grounded buses; and the primary side connectable to at least one of the two or more independently grounded buses so that, when connected, the grounding level of the primary side is equalized with a grounding level of the connected two or more independently grounded buses.