The ferrite shield concentrates the magnetic flux on the active side of the coil, increasing efficiency and preventing the magnetic field from heating up surrounding metal parts.
Wireless Charging Coils Component Intelligence
Precision-engineered coils for inductive power transfer and resonant charging applications.
What are Wireless Charging Coils components?
Wireless charging coils are specialized inductors designed for inductive power transfer. Selection depends on the required power level, operating frequency (typically 100-205 kHz for Qi), physical dimensions, and the presence of magnetic shielding to minimize EMI.
How to Choose Wireless Charging Coils Components
Selecting the right coil requires balancing physical constraints with electrical performance.
Inductance & Frequency
Match the coil's inductance to the resonant frequency of your transmitter or receiver circuit.
DC Resistance (DCR)
Lower DCR reduces heat generation and improves overall power transfer efficiency.
Shielding Requirements
Use ferrite-shielded coils to direct magnetic flux and prevent interference with nearby sensitive electronics.
Physical Footprint
Ensure the coil diameter and thickness fit within your enclosure while maintaining required coupling distance.
Power Rating
Verify the coil can handle the peak current and power throughput of your specific charging standard.
Popular Wireless Charging Coils Components
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