Definition of POWER SUPPLY


Power supply, as a noun, refers to a device or system that provides electrical energy to electronic devices, machinery, or systems, enabling them to function. It encompasses various components and technologies used to convert, regulate, and distribute electrical power from a source such as a wall outlet, battery, or generator to the devices or equipment that require it.

Electrical Energy Provision: A power supply serves the essential function of delivering electrical energy to power electronic devices, equipment, or systems, ensuring their proper operation. It may include components such as transformers, rectifiers, capacitors, and voltage regulators to convert alternating current (AC) or direct current (DC) from the source to the required voltage and current levels.

Conversion and Regulation: Power supplies often involve the conversion of electrical energy from one form to another, such as converting AC to DC or adjusting voltage levels to match the requirements of specific devices or applications. They may incorporate circuitry or control mechanisms to regulate output voltage, current, and frequency, ensuring stable and reliable power delivery.

Distribution and Connection: In addition to energy conversion and regulation, power supplies facilitate the distribution and connection of electrical power to various devices or systems. They may feature multiple output ports, connectors, or cables to interface with different types of equipment, allowing for flexible and efficient power distribution in diverse settings.

Types of Power Supplies: Power supplies come in various types and configurations to suit different applications and requirements. These include linear power supplies, switching power supplies, uninterruptible power supplies (UPS), battery chargers, and voltage regulators, each designed to fulfill specific functions and address particular needs in electronics, telecommunications, industrial automation, and other fields.

Importance in Electronics and Industry: Power supplies play a critical role in enabling the operation of electronic devices and equipment across a wide range of industries and applications. They provide the necessary energy for powering computers, consumer electronics, telecommunications networks, manufacturing machinery, medical devices, transportation systems, and more, contributing to modern society’s technological infrastructure and functionality.

Power supply, as a noun, encompasses the devices and systems responsible for providing electrical energy to electronic devices, machinery, or systems. From converting and regulating electrical energy to distributing and connecting power to various devices, power supplies are essential components in electronics, industry, and everyday life, enabling the operation of a wide range of equipment and systems.

POWER SUPPLY in a sentence

  • The computer was unable to function properly due to a faulty power supply.
  • The city experienced a blackout after a problem with the power supply occurred.
  • Renewable energy sources are becoming increasingly popular as alternatives to traditional power supplies.
  • The backup generator kicked in when the main power supply failed during the storm.
  • The power supply for the entire building was upgraded to meet increased energy demands.
  • The technician checked the voltage output of the power supply to ensure it was within acceptable limits.
  • A stable and reliable power supply is crucial for the operation of critical infrastructure.
  • The company invested in solar panels to reduce its reliance on the grid for power supply.

Etymology of POWER SUPPLY

The etymology of power supply involves Anglo-Norman French and Latin, with “power” rooted in the ability to do something and “supply” connected to filling up. Coined in English, the term refers to the source or provision of energy, especially in the realm of electricity.

  • Power” from Anglo-Norman French “pouair” (to be able) and Latin “potere” (to be able).
  • Supply” from Old French “supplie,” a noun use of the verb “supplier” (to fill up, complete), from Latin “supplere” (to fill up).
  • The combination power supply emerged in English, combining these elements to refer to the provision or source of energy or electrical power.
  • Power Supply integrates Old French and Latin elements, where “power” emphasizes ability, and “supply” relates to filling up or provision. Coined in English, the term specifically denotes the source or provision of energy, particularly in the context of electricity.

Derived from Anglo-Norman French “pouair” and Latin “potere” for “power,” and Old French “supplie” and Latin “supplere” for “supply,” power supply specifically refers to the source or provision of energy, particularly in the context of electricity. Its linguistic construction reflects the combination of elements related to ability and provision.


  • Energy supply
  • Electrical supply
  • Electricity provision
  • Power distribution
  • Energy delivery
  • Electric power
  • Energy transmission
  • Electrical infrastructure


  • Power outage
  • Energy shortage
  • Electrical failure
  • Blackout
  • Energy interruption
  • Power disruption
  • Electricity cut
  • Outage


  • Grid
  • Electrical infrastructure
  • Energy generation
  • Power system
  • Renewable energy
  • Energy resilience
  • Utility
  • Voltage

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