High-frequency Transformer

Wuxi Huipu Electronics Co., Ltd.: Your Leading High-Frequency Transformer Supplier

Wuxi Huipu Electronics Co., Ltd. was founded in 2004. It mainly produces a full range of high-frequency transformers, low-frequency transformers, surface mounted transformers(SMD transformers), reactors, power filter inductors, power adapters, solenoid valve coils, high-voltage transformers, current transformers, voltage transformers and other products.

Why choose us?

01/

Wide range of applications
Our products are widely used inIndustrial power supply, fire control power supply, charging pile, medical power supply, aerospace, automotive electronics, rail transit, photovoltaic, wind power generation, energy storage inverter, smart grid, robot industry, consumer electronics and other fields.

02/

Advanced equipment
We have very advanced Automatic winding machine, automatic soldering machine, LCR automatic bridge, insulation withstand voltage tester, Winding Dielectric Test Instrument, Transformer integrated test bed and other production equipment.

03/

Rich experience
The company has engaged in the production of electronic components for 20 years, passed and strictly followed the ISO-9001:2015 quality system certification, the team has accumulated rich experience in R&D, production management and quality assurance.

04/

One-stop solution
The company focuses on the full range of production scheme and one-stop procurement needs of customers. Our products are diversified with excellent quality and competitive price. It is the company's eternal pursuit to satisfy the customers all over the world.

Advantages of High-Frequency Transformer

01.

Very high current density

High frequency transformer has excellent temperature rise characteristic design. Because of these characteristics, it can achieve a very high current density in a very small package.

02.

High efficiency

Adjust the leakage inductance, so that it can have a fast switching time, very low cross loss, can make it achieve a high efficiency. The turn-to-turn conduction loss between the secondary winding and the primary winding of the transformer is very small.

03.

High power density

Because of the small size of the high-frequency transformer component, it has excellent temperature dissipation characteristics, so it can be tightly packaged with the relevant semiconductor devices and inductors to achieve high power density. Its current density can be 30A/ module.

04.

Low cost

The whole high-frequency transformer is composed of a small number of cheap components, coupled with the assembly is very convenient, so the cost of the transformer is very low.

High-Frequency Transformer Construction

Core material

Ferrite cores are most commonly used due to their lower core losses at higher frequencies compared to silicon steel cores. Power ferrites with grains oriented in one direction have even lower losses.

Winding configuration

Multilayer winding with single/double layer taping is used to minimize inter-layer and inter-turn capacitance. Thicker wire also helps reduce skin effect losses.

Winding insulation

Additional insulation is needed between layers and turns to prevent turn-to-turn flashover at higher voltages. Air insulation or mylar tapes are used.

Leakage inductance

Careful winding and tight coupling are required to achieve leakages below 5% of primary inductance for stability. Gapped/toroidal cores also help.

Parasitic capacitance

Proper layout, shielding, and separation of high voltage and low voltage windings help reduce common mode stresses and parasitic capacitances.

Application of High-Frequency Transformer

1. Power supplies and converters

Switch mode power supplies (SMPS)
High frequency transformers are a critical element in SMPS, which are widely used in consumer electronics, telecommunications, and computing devices. The high frequency operation allows these transformers to be much smaller and lighter compared to traditional power supplies, facilitating more compact and portable device designs. SMPS can efficiently convert electrical power, reducing waste and improving energy efficiency.

Inverters
Inverters convert DC power to AC power, commonly used in applications such as solar power systems, uninterruptible power supplies (UPS), and motor drives. High frequency transformers in inverters ensure efficient power conversion and isolation, improving the overall performance and reliability of these systems.

2.Telecommunications

Signal isolation and filtering
High frequency transformers are used in telecommunications equipment to provide signal isolation and filtering. They help in maintaining signal integrity and reducing noise, which is essential for high-speed data transmission. These transformers are found in devices such as modems, routers, and network switches.

Impedance matching
In RF and microwave communication systems, high frequency transformers are employed for impedance matching, ensuring maximum power transfer between different stages of the system. This is critical for maintaining the efficiency and performance of wireless communication devices.

3. Industrial applications

Induction heating
High frequency transformers are used in induction heating systems, which are employed in processes such as metal hardening, brazing, and soldering. The high frequency operation allows for rapid and localized heating, improving process efficiency and precision.

Welding equipment
In industrial welding applications, high frequency transformers are used in welding machines to provide the necessary voltage and current for arc welding and resistance welding. Their ability to handle high frequencies and power levels ensures reliable and consistent welding performance.

4. Medical equipment

Imaging systems
Medical imaging systems such as MRI and ultrasound machines utilize high frequency transformers to provide the necessary power and signal isolation. These transformers ensure the precise operation of the imaging equipment, contributing to accurate diagnostics and patient safety.

Diagnostic devices
High frequency transformers are also found in various diagnostic devices, providing power conversion and isolation in portable and stationary medical equipment. Their reliability and efficiency are crucial for the dependable operation of life-saving devices.

Certifications

FAQ

Q: Why use high-frequency transformers?

A: HFTs offer several advantages over traditional transformers, including smaller size, lighter weight, and higher efficiency. They enable miniaturization of electronic circuits, making them ideal for power supplies, converters, and inductive charging systems.

Q: How do high-frequency transformers work?

A: HFTs function similarly to conventional transformers but are optimized for high frequencies. They use specialized core materials and winding techniques to minimize losses and improve efficiency at high frequencies.

Q: What are the core materials used in HFTs?

A: HFTs often use ferrite cores, which have lower loss characteristics at high frequencies compared to silicon steel. Ferrite offers excellent permeability and can withstand the high frequencies without excessive heating.

Q: What are the advantages of using HFTs?

A: HFTs offer higher efficiency, reduced size and weight, and the ability to handle high frequencies. They are ideal for space-constrained applications and high-speed switching circuits.

Q: Where are high-frequency transformers commonly used?

A: HFTs are found in a variety of applications, including in switching power supplies, inverters, telecom equipment, medical devices, and renewable energy systems. They are also used in audio processing and signal amplification.

Q: How do you ensure the quality and reliability of HFTs?

A: Quality assurance for HFTs involves rigorous testing under different loading conditions and frequencies. Manufacturers perform winding integrity checks, insulation tests, and efficiency measurements to ensure reliability and long service life.

We're well-known as one of the leading high-frequency transformer manufacturers and suppliers in China. If you're going to buy cheap high-frequency transformer made in China, welcome to get free sample from our factory. Also, customized service is available.

high frequency transformer for networking equipment, high frequency transformer for cnc machines, high frequency transformer for medical equipment