Voltage sensing, autoselecting aircraft power supply interface

Details Voltage sensing, autoselecting aircraft power supply interface Voltage sensing, autoselecting aircraft power supply interface

1995-04-03

1996-03-12

Nguyen, Matthew V.

Electric power conversion systems

Current conversion

With means to connect the input to diverse power sources

307130, H02M 110, H01H 3500

Patent

active

054991870

ABSTRACT:
An autoselecting interface for selectively connecting an input aircraft power source to one of two outputs according to a sensed voltage of the input aircraft power source comprises a pair of input terminals for connection to aircraft power sources; first and second pairs of output terminals; a first voltage sensor connected to the input terminals for producing a first trigger output when an AC aircraft voltage is present at the input terminals; a second voltage sensor connected to the input terminals for producing a second trigger output when a DC aircraft voltage is present at the input terminals; a first switch responsive to the first trigger output for electrically connecting the pair of input terminals to the first pair of output terminals; a second switch responsive to the second trigger output for electrically connecting the pair of input terminals to the second pair of output terminals; and an override circuit for disabling the second voltage sensor from producing the second trigger output when an AC aircraft voltage is present at the input terminals.

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