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Image Credits: JKL Components Corp., Unipower Corp

DC to AC converter chips transfer DC inputs into AC power. They are computer chips with a specific integrated circuit (IC) package type.

How DC AC Converter Chips Work

DC AC converter chips create a square-form wave of output through an oscillator circuit. The square wave is then smoothed into a more normal AC sine wave using filters, inductors, and capacitors. An overview of converters appears in this video.

Video Credit: ES Repair

A more detailed explanation is shown in this video.

Video Credit: Indian Institute of Science

Types of AC DC Conversion Chips

Low end inverter chips produce square wave AC power.

More expensive converters filter the output more, producing a triangle wave (saw tooth wave), a stepped wave (or other modified sine wave), or a sine wave. Pure sine wave inverters can create smoother power than that supplied to residences.

Specifications

Important specifications when selecting DC AC converter chips include,

  • DC input voltage is usually 12 or 24 VDC.
  • AC output frequencies (e.g., 5.12E-5 to 0.63 Mhz), voltage (e.g., 184 to 650 volts) range or can be adjustable.
  • Apparent power (VA rating) varies (e.g., 180 to 8,500 VA).
  • AC output can be single-phase (low voltage applications) or three-phase (higher voltage applications).
  • Inverters operate in certain temperature ranges (e.g., -40 to 50 C).

Features

DC AC converter chips feature several main mechanical characteristics such as

  • One or more outputs are available.
  • Integral heat sinks, fans, and/or water provide cooling.
  • Devices that can be replaced without shutting down the system are hot swappable.
  • Over current, over voltage, or short circuit conditions can be warded against via protection.
  • Power factor correction optimizes power output.
  • A remote on/off switch is available.

Applications

Radio frequency, medical, telecommunications, magnetic, military, plasma devices use DC AC converter chips. They are also found in computers, instrumentation, and lasers.

References

How DC/AC Power Inverters Work

Modified Sine-Wave Inverter Enhanced

Mr. Fixit's Power Inverters

Your Guide to DC to AC Power Inverters