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High frequency transformer use precautions

Operating frequency matching: High frequency transformer has its specific design operating frequency range, be sure to ensure that the actual operating frequency is in this range. If the operating frequency is too low, it may lead to saturation of the magnetic core, resulting in a sharp increase in current and damage to the transformer. If the frequency is too high, it will increase the skin effect and proximity effect of the winding, resulting in a significant increase in copper loss and a decrease in transformer efficiency. For example, a high-frequency transformer designed for the frequency range of 100kHz-500kHz, if used in tens of kHz circuits, it is prone to core saturation problems.

2025

The common mistakes in making high-frequency transformer are explained in detail

The quality problems in the production of high-frequency transformers are also prone to mistakes in the production of high-frequency transformers, transformers are devices that transform AC voltage, current and impedance, when there is AC current in the primary coil, the AC magnetic flux is generated in the iron core (or magnetic core), so that the voltage (or current) is induced in the secondary coil. High-frequency transformer production process is generally divided into; Winding, soldering, assembly, immersion, testing several parts to complete. Common mistakes are as follows.

2025

The difference between high frequency transformers and inductors

High frequency transformer is a power transformer whose working frequency exceeds the intermediate frequency (10kHz), which is mainly used as a high frequency switching power transformer in high frequency switching power supply, and is also used as a high frequency inverter power transformer in high frequency inverter power supply and high frequency inverter welding machine. According to the working frequency, it can be divided into several grades: 10kHz-50kHz, 50kHz-100kHz, 100kHz ~ 500kHz, 500kHz ~ 1MHz, 10MHz or more.

2025

High-frequency transformer knowledge

1) According to the inductance calculation formula, AL=L/N2, the inductance is proportional to the square of the number of turns, and has nothing to do with the number of turns per volt of the high-frequency transformer. That is, the more turns, the greater the inductance. The smaller the number of turns, the smaller the inductance. The number of turns per volt of the transformer is related to the size and quality of the magnetic core, and the amount of inductance per turn is also related to the size and quality of the magnetic core, and the amount of inductance per turn of the transformer with more turns per volt is small. If the magnetic core is unchanged, the high-frequency transformer custom manufacturer increases the number of winding turns, which can provide greater inductance and more abundant electric energy.

2025

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