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3 Key Uses of Amorphous Magnetic Cores Today

Views: 1735 Author: Site Editor Publish Time: 2025-07-22 Origin: Site

Amorphous magnetic cores are important in high-frequency devices. They save energy and improve performance. Their special design lowers energy loss, making them great for modern use. Research shows they cut power loss by over 70% . Motors with these cores have 45% more power density. Unlike iron powder or silicon steel, they lose much less power. Their power loss can be as low as 35 W/Kg. These features help make small, efficient devices that work well in tough conditions.

Key Takeaways

Amorphous magnetic cores cut energy loss, perfect for fast devices.
These cores make power transformers work better and last longer.
In inductors, they reduce heat, making systems lighter and faster.
Amorphous cores block interference, giving clearer signals in devices.
More people want these cores as tech and electric cars grow.

Amorphous Magnetic Cores in Power Transformers

Why They Work Well in High-Frequency Transformers

Amorphous magnetic cores are great for high-frequency transformers. They are made from thin metallic glass ribbons. This design reduces energy loss during magnetization and demagnetization. It makes them perfect for high-frequency tasks. Unlike silicon steel cores , they lose less energy to hysteresis. This means they convert power more efficiently. They also work well at higher frequencies, keeping devices reliable in tough conditions.

Benefits of Saving Energy and Reducing Heat

These cores are very energy-efficient . They lower core losses, saving electricity. For example, a 1 kVA transformer with an amorphous core uses less power than one with a steel core. Less energy loss also means less heat is produced. Cooler operation helps devices last longer. Using these cores improves thermal control, keeping systems steady and reliable.

How They Are Used in Power Systems

Amorphous cores are used in many power systems. A 63 kVA transformer study showed fewer losses with an amorphous core. It also had a faster payback period compared to a steel core model. These cores are key in energy storage inverters, using materials like Metglas 2605SA1® for better efficiency. Tests like finite element analysis prove their effectiveness in power devices. They are used in renewable energy and industrial grids for reliable, efficient performance.

Amorphous Magnetic Cores in Inductors for Power Electronics

Role in High-Frequency Circuits

Inductors help control energy in high-frequency circuits. Amorphous magnetic cores are important for these uses. Their metallic glass design cuts energy loss during magnetization. This makes them great for high-frequency circuits. Unlike older materials, they stay stable with fast current changes. They handle high-frequency signals well, keeping devices efficient and reliable.

Advantages in Reducing Core Losses

Amorphous magnetic cores lower core losses in inductors. Their special Co-rich structure adjusts permeability to reduce heat. This helps create lighter systems with better heat control. The table below shows how these cores reduce losses:

Aspect	Details
Core Material	Co-rich amorphous magnetic cores
Core Loss Reduction	Helps lower core losses in high-frequency circuits
Tunable Permeability	Makes efficient cores that cut system weight by reducing heat
Saturation Flux Density	Less than ~2 T, needing low permeability for high current changes
Relative Permeability	Can go as low as ~20 due to special Co-rich nanocomposites
Grain Size	About 8nm with a tightly packed structure
Processing Methods	Affects core losses, compared to other soft magnetic materials

These features make amorphous cores vital for energy-efficient high-frequency systems.

Applications in DC-DC Converters and Inverters

Amorphous cores boost DC-DC converters and inverters. They are used in solar and wind systems to improve efficiency by 2-3% . In electric cars, they are key for chargers and converters. They cut heat, allowing longer charges and better reliability. Using these cores improves energy conversion and device lifespan.

Amorphous Magnetic Cores for EMI Suppression

How They Reduce Electromagnetic Interference

Electromagnetic interference ( EMI ) can harm electronic devices. Amorphous magnetic cores help reduce this problem. Their metallic glass structure lowers noise and vibration from magnetostriction. This makes them great for high-frequency uses .
Tests like magnetic flux, induced voltage, and magnetostrictive traits show their benefits. For example:

Measurement Type	Description
Magnetic Flux	Magnetic flux is found using ϕ=BmSsinωt. Bm is the magnetic induction intensity's amplitude.
Induced Electromotive Force	Induced voltage is calculated by e=−N1BSωcosωt. It shows how magnetic induction affects voltage.
Magnetostrictive Properties	Magnetostrictive traits measure vibration and noise in amorphous cores, key for high-frequency tasks.

These features ensure devices with amorphous cores face less EMI , even in tough conditions.

Role in Noise Filters and Shielding

Amorphous magnetic cores are vital in noise filters and shielding. They block unwanted signals by reflecting, absorbing, or letting waves pass. Shielding is measured using three factors:

Reflection (R): Shows how much EMI bounces back.
Absorption (A): Measures how much EMI the material absorbs.
Transmission (T): Tracks how much EMI passes through.

The total of R, A, and T equals 1 ( R + A + T = 1 ). Higher reflection and absorption mean better shielding. These cores provide strong shielding, measured in decibels (dB), making them ideal for reducing noise in sensitive systems.

Use in Communication and Medical Devices

Amorphous magnetic cores are common in communication and medical devices. They work better than Mn-Zn ferrite chokes in many ways:

Feature	Amorphous Magnetic Cores	Mn-Zn Ferrite Chokes
Impedance at 100kHz		Same inductance value
Required windings for same inductance	Fewer	More
Temperature effect on impedance	Minimal	Significant
Noise suppression performance	High	Moderate

These cores have high permeability, steady temperature control, and low audio noise. In communication systems, they keep signals clear. In medical devices, they cut interference, even at high frequencies. Their lightweight and energy-saving design make them essential for modern tech.
Amorphous magnetic cores are important for today’s high-frequency devices. They are used in power transformers , inductors, and to reduce EMI. These cores are efficient and can adapt to many uses. By 2025, millions will be made due to better materials and renewable energy. From 2025 to 2033, demand will grow with electric cars and smaller gadgets.

Year	Market Size Estimate	Main Reasons for Growth
2025	Millions of units	Better materials, energy-saving tech, and more renewable energy use.
2025-2033	Faster growth	More need from electric cars and smaller electronic devices.

As technology improves, these cores will help make energy-saving and reliable electronics for the future.

FAQ

Why are amorphous magnetic cores better than older cores?

Amorphous cores waste less energy when working. Their special metallic glass design lowers heat and energy loss. This makes them work better for high-frequency tasks.

Can amorphous magnetic cores be used in green energy systems?

Yes, they can! Amorphous cores make solar and wind systems more efficient. They cut energy waste, helping renewable systems save money and last longer.

How do amorphous magnetic cores stop electromagnetic interference (EMI)?

Amorphous cores block and absorb unwanted signals. Their high permeability and low vibration reduce noise. This helps sensitive devices, like communication tools, work better.

Are amorphous magnetic cores good for electric cars?

Definitely! Amorphous cores improve energy use in EV chargers and converters. They lower heat and boost efficiency, helping EV parts last longer.

Which industries use amorphous magnetic cores the most?

They are used in electronics, green energy, cars, and medical tools. Their small size and energy-saving features make them great for high-frequency jobs.