The inverter converts the direct current stored in the battery into alternating current for daily electrical appliances. This is a fact that many people know. However, many people are still very entangled in choosing inverters and do not know how to choose. Recently, a customer asked whether the 12v 220v inverter 500w should use high frequency or low frequency. This article gives a brief introduction to high frequency inverter and low frequency inverter. After reading it, I believe you will know which one is more suitable for you.
Compared with the high frequency inverter, the low frequency inverter has a larger peak power capacity to cope with the inductive load with a relatively large starting peak power. Low frequency inverters can operate at peak power levels up to 300% of their nominal power levels for a few seconds, while high frequency inverters can operate at 200% power levels for a fraction of a second. Then there is reliability: low-frequency inverters operate with powerful transformers, which are more reliable and more robust than high-frequency inverter MOSFETs that use electronic switches and are more easily damaged. In addition to the above two points, low-frequency inverters also have technical features and functions that most high-frequency inverters lack, such as built-in battery charger, UPS function, bypass mode without battery connection, power saving mode, and so on.
Nevertheless, low frequency inverters are not everyone's best choice. Under the same power, the low frequency inverter is much heavier than the high frequency inverter, and its enhanced peak performance capacity and higher reliability make the cost much higher than the high frequency inverter. If you do not consume a lot of energy, and only supply power to some small appliances, or the space is limited, then a high-frequency inverter will be your better choice.