Industrial switching power supply is also an indispensable part of switching power supply. With the development of social occupation, it is more and more widely used in shopping malls. Many large equipment have high requirements for the selection of industrial switching power supply.
1. First, select the appropriate input voltage standard.
2. Select the appropriate power. In order to increase the service life of the power supply, the model with the output rated power increased by 30% shall be selected.
3. Considering the load characteristics, the added load is motor, bulb or capacitive load. High current at start-up. A suitable power supply must be selected to prevent overload. If the load is a motor, consider the voltage return during shutdown.
4. For other requirements, consider the working ambient temperature of the power supply and whether there is a rated auxiliary heat dissipation device. When the ambient temperature is too high, the power supply needs to be derated, and the ambient temperature derating curve of output power.
5. Select various functions as required:
Switching power supply protection functions: over voltage protection (OVP), over temperature protection (OTP), overload protection (OLP), etc.
Use function: signal function (normal power supply, power failure), remote control function, telemetry function, parallel function, etc.
Special functions: power factor correction (PFC), uninterruptible power supply (UPS)
6. Select the required switching power supply safety regulations and electromagnetic compatibility (EMC) certification.
