The difference and advantages of high frequency and low frequency inverter

      Based on the output wave,inverters are roughly divided into pure sine wave inverter and modified wave inverter,mainly use pure sine wave inverter now. Pure sine wave inverter are divided into high frequency inverter and low frequency inverter.

Low frequency inverter（have isolation transformer）	High frequency inverter(No isolation transformer）

       So what are the main differences between high-frequency inverters and industrial frequency inverters?

1. Low frequency inverter is superior to high-frequency inverter in terms of peak power capacity and reliability

The inductive loads used in the family, such as electric tools, pumps, vacuum cleaners and other equipment with motors, may have power peaks; When inverters experience such peaks, they can bear the increased power for a short time before shutdown to prevent any damage to them.

Compared with high-frequency inverters, low-frequency inverters have larger peak power capacity to handle large loads with power spikes. In fact, the low-frequency inverter can operate for a few seconds at a peak power level up to 200% of its nominal power level, while the high-frequency inverter can operate for a small part of time at a power level of 150%.

The second main difference is reliability: the low frequency inverter uses a powerful transformer to operate, which is more reliable and robust than the MOSFET of the high frequency inverter. The latter uses electronic switches, which is more vulnerable to damage, especially at high power level.

2. Low frequency inverter can withstand grid input conditions, such as voltage fluctuation, high voltage spike and lightning. However, the high-frequency inverter cannot maintain this state.

In some areas where the power is very unstable, the voltage fluctuation is usually large. In this case, if the mains power is connected separately, the performance of the low frequency inverter will be more stable, resulting in lower failure rate and longer service life.

3. Comparison of components (see inside the machine)

The high frequency inverter uses an integrated circuit board to control the operation of the machine

Low frequency inverter adopts integrated circuit board+transformer

Therefore, the high-frequency inverter looks more lightweight, while the low-frequency inverter looks more bulky.

Mars low frequency inverter adopts brand new components, with 100% full power guarantee. The main components MOSFET adopt the American OM brand, which controls the quality of the inverter from the perspective of raw materials and gives customers the most considerate support.

4. Low maintenance cost and higher serviceability of Low frequency inverter

In high-frequency inverters, many electronic components with complex design circuits must be replaced with complete electronic component PCB when the inverter fails, and the cost is about 80% of the new inverter.

However, the design of transformer-based (low-frequency inverter) inverter is very simple and easy to maintain. Any technician can carry out maintenance at the component level. If the electronic PCB needs to be replaced with a new PCB in any opposite case, the cost will not exceed 30-40% of the new inverter.

More importantly, when your purchase volume reaches a certain value, our factory will provide a certain proportion of spare parts support. Reduce your operation and maintenance costs to a greater extent.

5. Huge advantages of high-frequency inverter

Light weight, small size, small standby power and slightly higher efficiency.

6. Common points and use suggestions of the two inverters

Common place

* Both are applicable to places lacking power

* Suitable for all kinds of batteries (lithium battery, gel battery)

* Wifi module for remote monitoring

Use suggestions

* Low frequency inverter using powerful electrical appliances and equipment

* Only small appliances need power supply, or your inverter space is limited: high-frequency inverter

      High frequeny inverter and low frequency inverter has its own advantages and disadvantages. If you have better suggestions and opinions, please contact our team. We will make every effort to realize your vision.