Power Supply. Electrical Energy Generation and Conversion. Rechargeable batteries. Electrical Energy Storage. Voltage Inverters. Voltage Stabilizers.

A power supply is an electrical device designed to provide electrical energy to various appliances, equipment, and electrical circuits. Its primary function is to generate, convert, store, or stabilize electrical energy so that the connected load receives voltage and current with the required characteristics. Power supplies can convert electrical energy from one form to another (for example, from alternating current (AC) to direct current (DC)), adjust the voltage level, maintain a stable output voltage, and provide backup or autonomous power using rechargeable batteries or battery cells.

Power supplies are widely used in industry, electric power systems, automation systems, household appliances, telecommunications, and electronic devices. Depending on their purpose and operating principle, they are classified into various types, including primary and secondary power supplies, voltage inverters, voltage stabilizers, and battery-based power supply systems.