Open frame power supply

Open Frame vs Enclosed Power Supplies

What are the differences between an open frame power supply and an enclosed power supply? What distinguishes open frame and enclosed power supplies is a basic difference in construction: with one, the power supply’s components are covered on all sides by a metal casing and with the other; the power supply’s components are attached by…

JBOD enclosure

Server Monitoring Essentials

If you’ve ever owned the same computer for more than a few years, you’re most likely very well aware of the kind of performance loss that occurs to them over time. More often than not, a majority of this performance loss is caused by a lack of maintenance. Consumer electronics do not reap the benefits…

Output derating curve

What is Output Power Derating?

All power supplies have a specified “Operating temperature range”. For example, a particular 500W switching power supply has an operating temperature range from “-20°C to +70°C”. However, the specification may also state “Output derating linearly above +50°C”. So what does this mean? Most power supply manufacturers provide output derating curve (see figure below) to make…

Open Frame Power Supplies

Cooling Methods for Open Frame Power Supply

In an ideal world all the energy input to a power supply would be converted to useable electrical output power. Unfortunately real life systems incur losses and like all other types of power supplies, open frame power supplies generate heat which has to be dissipated during system operation. Key components that contribute to such losses…