International aviation electronics supplier
AES serves the industry’s most trusted
names in commercial flying. The company
recently disrupted its industry with the
release of the first GaN-based switch
mode power supplies. These PSUs offer
at minimum a 10 percent increase in
efficiency versus competitive products,
one representing unprecedented cooling
functionality. They are currently used in
large passenger airplanes such as the Airbus
A318-A321 planes, Boeing B767 and B787 VIP
planes, and others.
AES’ flagship GaN PSU—the 500 W PS250X—
is the aviation industry’s first passively
cooled power supply at 420 W. It uses
Transphorm’s GaN FETs in a single-phase
CCM boost power factor correction (PFC)
topology.
The second PSU—the 1200 W PS6120—
deploys Transphorm’s GaN in a fan-cooled,
three-phase CCM boost PFC topology.
Both products are DO-160 compliant—
meeting the stringent 25-point+ standard
of the Radio Technical Commission for
Aeronautics (RTCA). This standard assesses
system impact and performance under
various external and internal aircraft
conditions.
> 92% system efficiency at full load
(10% more than competition)
> 0.98 PFC
200 mV
pp
(ripple) nominal at
115 VAC/400 Hz at full load
PSU weight of 1.4 kg (~3 lbs.)
PS250X Transphorm GaN benefits:
> 91.5% system efficiency at full load
(11.5% more than competition)
> 0.98 PFC
200 mV
pp
(ripple) nominal at
115 VAC/400 Hz at full load
PSU weight of 4.0 kg (~8.8 lbs.)
PS6120 Transphorm GaN benefits:
GaN Aircraft PSUs
PS6120
PS250X
GaN
1st
GaN
1st
650 V GaN in
Aircraft Switch Mode Power Supplies