Battery system for auxiliary aircraft power
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United States of America Patent
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-
Oct 4, 1988
Grant Date -
N/A
app pub date -
Apr 27, 1987
filing date -
Apr 27, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A battery system for auxiliary aircraft power includes a 30 volt battery pack consisting of two twelve volt batteries and one six volt battery connected in series. A constant voltage device is connected in series with the battery pack to reduce the higher batter pack voltage to the nominal 28 volts required by the aircraft. In this way, commonly available industrial batteries can be used to supply the 28 volts peculiar to aircraft systems. The constant voltage device comprises two pairs of series connected silicon power diodes, each pair of series connected diodes exhibiting a forward voltage drop under load of approximately 1.5 volts. The two pairs of diodes are connected in parallel to increase the current carrying capacity of the constant voltage device.
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