Industrial Power Supply – 300 Watt Open Frame

This industrial power supply – 300 watt open frame was designed to operate in high temperature environments like a sealed enclosure with no air flow or a chassis without fans requiring the power supply to reliable endure high internal ambient temperatures. This design utilizes a high efficiency, ac-dc rectifier architecture to produce the 200 watts of continuous power output in a module (“brick”) construction. Incorporated onto the design is a EMI filter section and control electronics board to provide the functional controls and improved input and output electrical characteristics.

One of the unique aspects of this industrial power supply is the operating temperature range of -40°c to +85°C. This is achieved through conduction cooling of the baseplate. The advantage of this approach is the cooling is focused on the baseplate rather than the ambient operating temperature or the internal temperature rise when determining cooling requirements.  The footprint of this industrial power supply series is 2.4” x 4.6” with a height of 1.4”.