Features:
1. High inductance density: A closed magnetic circuit enables higher inductance to be obtained under the same volume, which is 30-50% higher than an I-shaped inductor

2. Low leakage magnetic characteristics: fully closed magnetic circuit, small leakage magnetic pole, excellent EMI performance, reducing interference with surrounding components

3. High efficiency: The magnetic core loss and copper loss are low, and the energy conversion efficiency is 5-10% higher than that of open magnetic cores

4. Good heat dissipation: Skeleton free design, direct contact between winding and magnetic core, easy to dissipate heat

5. Good stability: stable magnetic properties, small temperature coefficient, reliable long-term performance

6. Flexible design: By changing the number of turns, wire diameter, and magnetic core size, inductance coverage from μ H to H levels can be achieved

Applications：
1. Power conversion field

    Switching Power Supply (SMPS): Input/Output Filter Inductors, PFC (Power Factor Correction) Inductors, Energy Storage Inductors, Improve Power Efficiency and Stability

    Linear power supply: filtering and choke, reducing ripple, improving power supply quality

    Uninterruptible Power Supply (UPS): Energy Storage and Filtering to Ensure Power Supply Continuity

2. Electromagnetic compatibility (EMC) and filtering

    Common mode interference suppression: Common mode magnetic ring inductors are used to suppress common mode noise in power and data lines, meeting CE/FCC certification requirements

    Differential mode filtering: Single winding magnetic ring inductance is used to suppress differential mode interference and improve signal integrity

    EMI rectification: later installed on cables to reduce electromagnetic radiation and conducted interference

    Radio frequency interference (RFI) suppression: High frequency magnetic rings are used in communication equipment to prevent signal interference with each other

3. Signal processing and communication

    Audio equipment: Divider inductor, improves sound quality, reduces signal distortion

    Communication base station: Chokes and coupling inductors in RF circuits to improve signal transmission efficiency

    Data transmission: Signal filtering for Ethernet, USB, HDMI and other interfaces to ensure stable data transmission

    Wireless charging: resonant inductance between the transmitting and receiving ends to improve energy transmission efficiency

4. Industrial and Special Applications

    Motor control: Drive circuits for servo motors and stepper motors to suppress current ripple and improve control accuracy

    New energy: filtering and energy storage inductors in photovoltaic inverters and wind power converters

    Medical Electronics: Low noise inductors in precision instruments to reduce the impact of electromagnetic interference on measurements