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Company Certificates

Business Registration Certificate
Quality Management System ISO9001 / ISO14001 / ISO13485 / ITF16949
ROHS Testing and Certification by SGS

Frequently Questions, Technical Articles

HHLT indcutor Summary
A Brief Introduction to Inductors - Why are there various types of inductors? What are the differences? How do you select the right one?
Inductor Parameter Explanations
How to Select EMC Ferrite Beads and Inductors?
What factors affect the quality (reliability) of power inductors?
Rough Calculation Method for Rated Current of Wire-wound Inductors
Causes and Solutions for Noise (Whining Sound) Generated by Inductors in Circuits
Causes and Solutions for Electromagnetic Interference (EMI) / Electromagnetic Compatibility (EMC) Issues
Three Laws and Three Elements of EMC Issues

Specifications of Enamelled Copper Wire (Outer Diameter Dimensions of Various Wire Gauges, Resistance, Voltage Rating)
Brief Analysis of Magnetic Material Selection
Wireless Charging Principles and Common Issues
A Brief Overview of the Qi Wireless Charging Standard
Selection of Wireless Charging Coils
Air Core Coil Design Specifications
The Relationship Between Coil Size (Volume), Inductance, Current, and DCR
Comparison of Pros and Cons of Wireless Charging Coils
Reference for Wireless Charging Product Development Engineers
Relevant Explanation About Coil Molds