What are the differences between an off grid high frequency inverter and an off grid low frequency inverter?

Different from ordinary inverters, the main function of off grid high frequency inverters is to add high-frequency conversion in the process of power inversion. And the volume of material in the off grid high frequency inverter is also different from the ordinary inverters, which makes the material lighter and smaller. It is more suitable for designs that need to reduce the volume but need to maintain the original efficiency. Next is an introduction to the difference between off grid high frequency inverters and off grid low frequency inverters.

Here is the content:

The circuit works differently

Power and signal are different

The advantages and disadvantages are different

The circuit works differently

Off grid low frequency inverters and off grid high frequency inverters are distinguished according to the design circuit operating frequency of the inverter.

The off grid low frequency inverter is designed based on the traditional analog circuit principle and consists of a thyristor (SCR) rectifier, an IGBT inverter, a bypass, and a power frequency step-up isolation transformer. Because the working frequency of its rectifier and transformer is 50Hz, it is called an off grid low frequency inverter as the name suggests.

Off grid high frequency inverters usually consist of IGBT high-frequency rectifiers, battery converters, inverters, and bypasses. The IGBT can be turned on and off by controlling the drive added to the gate. The switching frequency of the IGBT rectifier is usually from a few kilohertz to tens of kilohertz, or even as high as hundreds of kilohertz, which is much higher than that of a power frequency machine. It is an off-grid high-frequency inverter.

Power and signal are different

The voltage provided by the power board generally has a frequency of 0 (DC power) or 50 Hz (AC power). The signal can be said to be high frequency or low frequency (or other frequencies), the power board is hard to say because it is only used for power supply, the frequency is very low, and what must be said is only low frequency.

The advantages and disadvantages are different

The advantages of off grid high frequency inverters are mainly lightweight, small size, low standby power, and high efficiency (relatively saving electricity). The disadvantage is that the impact resistance is not as good as off-grid power frequency inverters (that is, off grid low frequency inverters), and may not be able to carry electrical appliances such as food mixers and hand drills. The disadvantage of off grid low frequency inverters is that they are heavier and larger and may be slightly more expensive, and their losses will be slightly larger (a bit of electricity). The advantage is that it is leatherier, and the ability to carry impact electrical appliances will be better.

Shenzhen sunray power Co., Ltd. is headquartered in Shenzhen, Guangdong Province, China. The company covers an area of 10,000 square meters and was established in 2004. It is a company specializing in off grid high frequency inverter research. We are committed to becoming a leading brand in the industry. All products undergo several performance tests before they leave the factory. If you are engaged in related work or are interested in our high-quality products, you can communicate with us. Our website is https://www.sunrayups.com/. Looking forward to your contact.