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inverter

 inverter 

  • Modern aircraft equipment is based on the static inverter; it is solid-state, i.e. it has no moving parts.
  •  The DC power supply is connected to an oscillator; this produces a low-voltage 400 Hz output.
  • This output is stepped up to the desired AC output voltage via a transformer.
  • The static inverter can either be used as the sole source of AC power or to supply specific equipment in the event that the main generator has failed.
  • Alternatively they are used to provide power for passenger use, e.g. lap-top computers. The DC input voltage is applied to an oscillator that produces a sinusoidal output voltage.
  • This output is connected to a transformer that provides the required output voltage.
  • Frequency and voltage controls are usually integrated within the static inverter; it therefore has no external means of adjustment.


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