ALLIED INTERNATIONAL CORPORATION, 7 HILL STREET, BEDFORD HILLS, NY 10507, USA  914 241 6900,

Allied International

CHAMPION AEROSPACE TRANSFORMER RECTIFIER UNITS

 For more than 40 years, Champion (formerly WAGNER ELECTRIC) brand power supply products have been specified for airborne use, ground support, and marine requirements. As the acknowledged leader in power conversion, this complete line of Transformer-Rectifier Units (power supplies)  or TRU can be custom tailored to your specifications. Champion Aerospace has also pioneered design improvements in its power supply line—now with ratings up to 300 amperes. And, by simulating operational environments and stresses in the development process , Champion’s power supplies meet virtually every design objective required by airframe manufacturers.

Lightweight Power Supplies

Champion TRU provide rigid physical support, full circuit enclosures, and optimum, uniform  heat dissipation. The unique "Y" configuration reduces weight and space factors. This also allows the power supplies to be mounted in any position, fan or blast cooled and have far greater flexibility in termination and terminal locations. Champion TRU   are known for reliability (near linear voltage regardless of load variations) and the ability to withstand extremes in altitude, temperature, shock, vibration, and gravity and are  They are qualified to Mil Standards controlled by the US Navy (NAVAIR). OEM applications have stood the test of time and combat on aircraft like F-16 and C-17. For avionics upgrades or special mission conversions  of military, commercial,  and corporate aircraft which require additional DC power, Champion TRU's offer an off the shelf  qualified rugged and economical solution to the need to convert   400 Hz AC to 28 VDC and Champion is working on the next generation 270 VDC TRU for the aircraft of the future.


PCTRU Power Quality Improvements

Conventional wisdom  says that while unregulated TRU   are more robust than regulated TRU or RTRU they have higher DC ripple voltage. With the latest Champion Passive Controlled Transformer Rectifier Unit (PCTRU) this is no longer the case. Tests have shown that Regulated TRU DC ripple voltage which meets Mil Std 704 exceeds the 5% noise modulation limits for proper communication function. The real life implication of this level of ripple was noise on the communication line between the pilot and the back of a military helicopter. PCTRU DC ripple Voltage is 90 % lower than RTRU ripple voltage.   So the Champion PCTRU provides cleaner and smoother power than either regulated or conventional TRU, without sacrificing the robust reliability of the unregulated TRU.  The PCTRU is available as 50 to 300 ampere TRU.

See the link below for a detailed comparison.


NEW PRODUCT: DC Bus Hold-Up Unit 28VUPS27FSPD


The patented and exclusive to Champion Aerospace Model 28VUPS29FSPD is an uninterruptible power supply (UPS) with an integrated transient voltage Surge Protection Device (SPD) circuit specifically designed for airborne applications. The UPS was originally designed for a military helicopter application to maintain availability of critical mission electronics during  DC bus transfer from  APU to main engine power. The UPS provides 250 amps of holdup power for 50 milliseconds for a resistive load or 150 amps for 500 milliseconds. The surge protection device  (SPD) clamps high voltage transients to 40 volts DC maximum thereby protection aircraft avionics and other aircraft protection systems from damaging high voltage surges. The UPS has been adopted by many of the latest  special mission aircraft programs like MPA Marine Patrol Aircraft along with the Champion PCTRU

CHAMPION TRU CHAMPION BUS HOLD UP UPS TRU APPLICATION LIST DOWNLOAD TRU BROCHURE PDF DOWNLOAD UPS BROCHURE PDF CATALOG PCTRU VS RTRU COMPARISON