Inverter Tips: The Output Voltage Waveform

Inverter Tips: The Output Voltage Waveform
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Inverter Tips: The Output Voltage Waveform in DC/AC Inverters

With the development and improvement of semiconductor devices, inverters that provide AC alternating energy to domestic or industrial loads have become popular. These are used in multiple applications from DC continuous energy sources or battery energy storage sources, offering versatility, supply security and efficiency in both single-phased and three-phased power supplies.


Inverters are static converters that transform direct current into alternating current through the use of semiconductor switches that have been developed in recent decades, becoming more efficient, fast and cheap (MOSFETs, IGBTs, Silicon Carbide transistors, GaN transistors) with multiple topologies and control modes.

The topologies and transistor technology used affect the output voltage-frequency regulation capability and the output voltage waveform. This aspect is especially important to achieve a good integration result with the final application.

About Premium’s Inverters

All Premium inverters are designed to provide a pure sinusoidal output voltage with a low harmonic content and THD less than 2% (16 measures average) and a maximum switching frequency component value of less than 2.5% of the fundamental.

The use of advanced semiconductors in Premium ́s inverters (HyperFast IGBT or SiC transistors) reach switching frequencies above 20 kHz with low losses, allowing a compact and a very efficient filtering stage. This stage provides the inverter with fast and robust protection against over-currents and short- circuits. All solutions use components with the latest generation of ferromagnetic materials.

Also, all inverters include an EMC output filter to meet the emissions according to industrial and railway standards.

About Premium

Premium is one of the largest power supply companies in Europe, offering solutions to the industrial market being some of them in high-tech machinery, transportation, energy or extreme environments applications. Founded in 1981, Premium designs and manufactures power conversion systems for customers all around the world.

Premium’s power range includes DC/DC converters, uninterrupted power supplies, DC/AC inverters, AC/DC power supplies and any solution that requires high reliability from 50W to 50kW.

All products comply with the specifications and regulations that each application requires and all projects, from the concept, design and until the homologation of the product, are carried out in Barcelona under strict quality controls.

Custom is Premium’s standard, so any current product variation or new development can be done by our R&D department, a team of over 50 engineers with a wide know-how.


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