A power supply is an electrical device that supplies electric power to an electrical load. The primary function of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load.
Specification: The suitability of a particular power supply for an application is determined by various attributes of the power supply, which are typically listed in the power supply’s specification. Commonly specified attributes for a power supply include:
✅ Input voltage type (AC or DC) and range.
✅ Efficiency of power conversion.
✅ The amount of voltage and current it can supply to its load.
✅ How stable its output voltage or current is under varying line and load conditions.
✅ How long it can supply energy without refueling or recharging (applies to power supplies that employ portable energy sources)
✅ Operating and storage temperature ranges.
Commonly-used abbreviations used in power supply specifications:
✅ SCP – Short circuit protection.
✅ OPP – Overpower (overload) protection.
✅ OCP – Overcurrent protection.
✅ OTP – Overtemperature protection.
✅ OVP – Overvoltage protection.
✅ UVP – Undervoltage protection.