What is the power frequency power supply?
The power frequency power refers to the direct working power supply without any frequency conversion or voltage regulating circuit and device The power supply of AC power at 50-60 Hz is called frequency power supply.
The working frequency is in the tens of KHZ or higher, and the power supply can be determined as a switching power supply or a high-frequency switching power supply. The power transformer core is usually made of silicon steel sheet, while the core of the switch power supply is ferrite material. The same power transformer, the frequency power transformer volume is much larger than the switching power transformer volume.
The frequency of AC power supply in our country is 50HZ. The AC power supply needs to be rectified and filtered by the transformer. After filtering, the AC power supply is changed into a low-voltage DC power supply to supply the electronic equipment. The working frequency of the core transformer is changed, that is to say whether it is the power frequency power supply. The working frequency is 50HZ, so the power source is judged to be power frequency power;
