PCBA Functional Test Fixture

4 month ago

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Dongguan Jinglin Communication Technology Co., Ltd.

 2 year year

Product details

Low-frequency transformers are utilized to transmit signal voltage and power; they also facilitate impedance matching between circuits and provide isolation against direct current (DC). Fundamentally, there is no difference in operating principle between high-frequency and low-frequency transformers. However, due to the disparity in operating frequencies, the core materials used in these transformers differ. Low-frequency transformers typically employ silicon steel laminations with high magnetic permeability, whereas high-frequency transformers utilize high-frequency ferrite cores.

As critical components in power transmission and conversion, transformers play an indispensable—albeit often behind-the-scenes—role across a wide spectrum of fields. Not only do they come in a vast array of types with diverse functionalities, but they are also extensively deployed in areas such as industrial automation, new energy generation, and building energy management, serving as a powerful engine driving the high-quality development of the manufacturing sector.

【Diverse Classifications of Low-Frequency Transformers】

Classification by Structure

Core-type Transformers: As the most common type of low-frequency transformer, core-type transformers are widely utilized in various electronic devices due to their compact size, light weight, and high efficiency. Their magnetic circuit is situated within the coil assembly—typically formed by a ferrite or iron core—and features a well-engineered design that ensures low temperature rise and enables the maintenance of stable performance over extended periods.

Shell-type Transformers: In contrast to core-type transformers, the magnetic circuit of shell-type transformers is positioned external to the coil assembly, typically enclosed within an iron or aluminum casing. These transformers exhibit robust anti-interference capabilities and superior stability, performing exceptionally well in high-frequency and high-power applications. However, they tend to be relatively larger and heavier, thereby imposing higher demands on available installation space.

Wound-type Transformers: Constructed by winding coils directly onto a core, wound-type transformers feature a simple structure and lower manufacturing costs. Although they possess a longer magnetic path and relatively lower efficiency, they nonetheless retain significant practical value in applications where constraints on size and weight are not particularly stringent.

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Dongguan Jinglin Communication Technology Co., Ltd.

 Audited supplier

2 year

Address: Dongguan, China

Main Product: PCB Assembly, PCB Layout , PCB Prototype, SMT Assembly, Motherboard processing, Electronic components

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