GATWIN CO., LTD.

GATWIN CO., LTD. established in 2017, is a manufacturer specializing in the production of transformers and toroidal inductor products. The company has import and export qualifications and produces products covering plastics, hardware, magnets and other materials, and conducts joint research and development to achieve the goals of improving product yields, reducing costs, and achieving win-win cooperation. We are committed to providing high-quality products and excellent services to meet our customers' needs and expectations.

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Product Introduce

We specialize in the production of various high and low frequency transformer series, choke coils, filter series and various series of inductance components, covering a wide range of application fields.

EE transformer
EE transformer
EEL, EER, EERL transformers
EEL, EER, EERL transformers
ER, ERL transformer
ER, ERL transformer
ET, ETD, KP, PQ, PC, LP, PT, DS transformer
ET, ETD, KP, PQ, PC, LP, PT, DS transformer
RM transformer
RM transformer
Q : The role of high and low frequency transformers

High frequency transformer is the most important component of switching power supply.

There are many topologies in switching power supplies. For example, in a half-bridge power conversion circuit, during operation, two switching transistors are turned on in turn to generate a 100kHz high-frequency pulse wave, which is then transformed through a high-frequency transformer to output alternating current. The ratio of the turns of each winding coil of the high-frequency transformer is determined. determines the output voltage.

High-frequency transformer is a power transformer with an operating frequency exceeding medium frequency (10kHz). It is mainly used as a high-frequency switching power supply transformer in high-frequency switching power supplies. It is also used as a high-frequency inverter in high-frequency inverter power supplies and high-frequency inverter welding machines. Power transformer.

According to the working frequency, it can be divided into several grades: 10kHz-50kHz, 50kHz-100kHz, 100kHz~500kHz, 500kHz~1MHz, and above 1MHz. When the transmission power is relatively large, the power device generally uses IGBT. Since IGBT has a shutdown current tailing phenomenon, the operating frequency is relatively low; when the transmission power is relatively small, MOSFET can be used, and the operating frequency is relatively high.

Low-frequency transformers are used to transmit signal voltage and signal power. They can also achieve impedance matching between circuits and have an isolating effect on DC power.