inverter

inverter — noun

1. a piece of electronic equipment that turns direct current (DC) into alternating

1.nounB2
Definition

a piece of electronic equipment that turns direct current (DC) into alternating current (AC), allowing battery-powered devices to work with standard household or mains electricity.

Example

Noor installed an inverter in her van to power her laptop during long road trips.

install + inverter + in [vehicle] to power [device]

During the power outage, the small inverter kept the family's refrigerator running for hours.

keeps [appliance] running during power outage

Common collocations
  • solar inverter
  • power inverter
  • inverter system
  • inverter output
  • install an inverter
  • connect an inverter
  • pure sine wave inverter
  • grid-tie inverter
Synonyms
  • power inverter

    more specific term that emphasises the power-handling capability; often used interchangeably in product names

  • DC-AC converter

    strict technical synonym used in engineering contexts; describes the conversion type explicitly

  • converter

    broader term covering any energy conversion device; not specific to DC-to-AC, so use with caution

Antonyms
  • rectifier

    a device that converts AC to DC, performing the opposite electrical conversion

Usage Note

Commonly associated with solar power systems, car electronics, and backup power setups. The word 'inverter' is also used as a direct English loanword in Taiwanese Mandarin.

Common Mistakes

我把車用電池接到 converter 上，就能用家用電器了。
我把車用電池接到 inverter（逆變器）上，就能用家用電器了。
在電子領域中，converter 是泛稱，而 inverter 特指將直流電（DC）轉為交流電（AC）的裝置，兩者用途不同。

Word family

Synonym discussion

Sense: noun/1

All four devices change electrical energy, but each does a different job. An inverter turns direct current (DC) into alternating current (AC) — think of running a household lamp from a car battery. A converter is a broader term: it can change DC to DC (voltage up or down), AC to DC, or AC to AC. A rectifier does the opposite of an inverter, converting AC to DC, which is common inside phone chargers and laptop power adapters. A transformer only changes voltage levels, keeping the same current type (AC to AC or DC to DC); it does not perform DC-to-AC conversion. So if you need to power a home appliance from a battery, you need an inverter, not a rectifier or a transformer.

inverter ↗converterrectifiertransformer

Common collocations

Nouns

Phrases

  • solar inverter
  • power inverter
  • grid-tie inverter
  • pure sine wave inverter
  • off-grid inverter

Prepositions

  • inverter for [system or purpose]
  • inverter with [specification, e.g. 1500W]

Etymology

LatinEnglish

From the verb 'invert' (to turn upside down or reverse the order) combined with the agent suffix '-er' (a thing that performs the action). 'Invert' comes from Latin 'invertere', formed from 'in-' (into, upon) and 'vertere' (to turn). The electrical sense arose in the early 20th century as engineers developed circuits capable of reversing the direction of current flow to produce AC from a DC source.