First, let’s understand what the frequency of the inverter is and what does it represent?
The frequency of the inverter is an important parameter of alternating current, which is the number of positive and negative changes in current per second. Also called Zhou Bo. Exchange the number of positive and negative half-cycle changes per second.
The national power standard is 50 Hz. Generally, the cycle is 20MS, F 1/T 50HZ.
The frequency of the electricity we use daily is 50Hz. If we want to change its frequency, we must change it through a frequency converter. The working principle of the frequency converter is to first convert alternating current with frequency into direct current without frequency, and then control it through electronic circuits so that its frequency can be adjusted arbitrarily. The inverter is almost the same as the second half of the frequency converter, it converts DC power into AC power.
So what is the general frequency of the lolsolar inverter high frequency?
Generally at 30-50HZ, if the frequency is too high, the power switch tube may work abnormally, including severe heating, too small amplification, etc. Therefore, when the frequency of the inverter is greater than 50HZ, it can become a high-frequency inverter.
The operating frequency of the high-frequency transformer inside the inverter is generally around 30 K. To be stable, it is best not to exceed 40,000 HZ. At high frequencies, the switching tube generates too much heat and is difficult to find. Switching loss. It is obvious above 100K Hz, and some of them are resonant from hundreds of K to several megabytes.
But for switching power supply lolsolar inverters, this frequency does not have a fixed range. It is mainly determined by the PWM chip. Some chips can adjust the frequency. There are dozens of K, hundreds of K, and several M. It mainly depends on your own design needs. It has a lot to do with the parameters of the switch tube and transformer. The frequency of use is determined by the device used and the external circuit, and is not a definite value. Take a look at your actual power supply. Different power supplies have different frequencies.
Job Wang（Mr）
Shenzhen Lolsolar New Energy Technology Co.,Ltd
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