Why should a power supply have a wide operating temperature range?
Depending on the application, a power supply with a wide operating temperature range may provide better reliability and a longer operating lifetime, prevent the need for a cooling fan or other special design consideration for thermal management, and reduce the overall cost of your system.
What is a good ambient temperature for a power supply?
Some applications may require ambient operating temperatures as low as -40 degrees Celsius and as high as +85 degrees Celsius, or an even wider range. A number of factors can influence the ambient temperature that a power supply is subjected to in a given application, including the following:
What temperature should a commercial power supply be rated?
Typical commercial power supplies are specified to support their full rated load over an ambient temperature range from zero or minus 25 degrees Celsius to around 50 degrees Celsius, and they may derate to 50% load at 70 degrees Celsius.
What does it mean if a power supply exceeds standard operating temperatures?
Exceeding standard operating temperatures means running your power supply when the ambient temperature falls outside the operating temperatures for which it is rated. Sometimes this happens — you can't predict every possible usage scenario, and you can’t always guarantee a stable environment.
How should a power supply be operated under temperature test?
The unit under temperature test should be operated under normal load conditions in accordance to supply voltage concerning worst-case condition until the temperature has stabilized. Common power supplies support a wide input voltage range to cover worldwide AC mains networks.
What is a maximum operating temperature?
Maximum operating temperatures apply to components/materials including those that carry, support, or contain hazardous voltage or current. As an example, a plastic enclosure has two temperature ratings, maximum surface temperature, and its own maximum operating ambient air temperature.
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BPI 500W Mobile energy storage power supply Outdoor power supply. 152330-850mah Polymer Battery. 502530-320mah polymer lithium battery high and low temperature battery. 502535 polymer lithium battery 400 mah 3.7v rechargeable batteries. Outdoor construction, outdoor tourism, mobile power supply 300W. Polymer lithium ion 103952-2000mah 3.7V
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Environment Operating temperature-40 ℃ to +45 ℃ Relative operating humidity ≤ 95% (no condensing) Storage temperature-40 ℃ to +70 ℃ Relative storage humidity ≤ 95% (no condensing) Air pressure 80 kPa to 106 kPa Altitude •0 to 2000 m: full power output • 2000 m to 5000 m: The system power output is decreased by
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