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