power pack

Thân thiện

A technician plugs a power pack into a laptop on a workbench.

Definition

1. Noun:
   • A device for converting a power supply to a voltage required by particular equipment: A "power pack" is a unit that takes electrical power from a source (like a wall outlet or a battery) and changes it to the specific voltage and current needed to operate another piece of equipment.

Usage

• A "power pack" is typically a separate, portable unit that provides or regulates power. It is commonly used with electronic devices like laptops, routers, or hobbyist equipment (e.g., model trains, radio-controlled cars). It connects between the main power source and the device.

Examples

• Noun:
  • I need to replace the power pack for my external hard drive; the old one stopped working.
  • The model railway runs on a 12-volt DC power pack.
  • Make sure the power pack is compatible with your device's voltage requirements.

Advanced Usage

• Technical Context: In electronics, a "power pack" can refer to an integrated assembly containing a transformer, rectifier, and voltage regulator.
  • The amplifier's internal power pack was damaged during the surge.

Variants and Related Words

• Power supply (n): A more general term for any unit that provides electric power to an electrical load. A power pack is often a type of power supply.
• Adapter (n) / AC adapter (n): A common type of power pack that converts alternating current (AC) from a wall outlet to direct current (DC) for a device.
• Battery pack (n): A set of batteries combined into a single unit to provide power, often rechargeable. This is distinct from a power pack that converts voltage, though the terms are sometimes used loosely.

Synonyms

• Converter: A device that changes electrical energy from one form to another (e.g., AC to DC).
• Transformer: A device that transfers electrical energy between circuits, changing the voltage level.

Related Phrasal Verbs/Compounds

• (No common phrasal verbs use "power pack" as a verb. It is primarily a noun compound.)

Related Idioms

• (There are no common idioms featuring "power pack.")

Học thuật

Noun

1. a device for converting a power supply to a voltage required by particular equipment