The AI-PSxx-3 is an efficient switching power supply that converts 28 VDC input to the required connected voltage (total 3 amp) output with very little heat generation.  It can accommodate a variety of special voltage applications for audio/video equipment, LCD monitor displays, digital circuits, membrane switch systems, and other applications.  This unit is rated at 85% efficient.  It is totally enclosed in an aluminum chassis that is connected to aircraft ground.  This will shunt the possibility of high frequency interference that may be produced by the power supply to ground potential. 

The “xx” in the model number designates the converted output power:

The AI-PS28-9 converts standard +28 Vdc input power to isolated and regulated +28 Vdc output power.  This switching supply is efficient and can accommodate a variety of special voltage applications for audio/video equipment, LCD monitor displays, digital circuits, membrane switch systems, and other applications.

The AI-PS115-1 is an efficient switching converter that switches 115 Vac power to regulated +28 Vdc power at nine amps current.  It can accommodate a variety of special voltage applications for audio/video equipment, LCD monitor displays, digital circuits, membrane switch systems, and other applications.  This unit is rated at 85% efficient.  It is totally enclosed in an aluminum chassis that is connected to aircraft ground.  This will shunt any possible high frequency interference that may be produced by the power supply to ground potential.