SMD Power Inductor Selection Guide: Materials, Topologies & Applications
How to choose the right surface-mount power inductor for DC-DC converters, POL regulators, and high-current applications Introduction SMD power inductors are everywhere in modern electronics—from your smartphone’s buck converter to a server’s 48V bus converter. Yet selecting the right inductor is often treated as an afterthought, even though it directly determines efficiency, transient response, and […]
Common Mode Choke Design Guide: Core Selection, EMI Filtering & Applications
How to choose the right magnetic core for CMC chokes in power electronics, EV charging, industrial drives and more Introduction Common mode chokes (CMC) are one of the most widely used magnetic components in EMI filtering. Whether you’re designing an EV on-board charger, a solar inverter, a motor drive, or a switched-mode power supply, a […]
On-Board Charger (OBC) Magnetic Components Design Guide: CMC, Inductors & Cores
Key magnetic cores, CMC chokes & power inductors for 3.6kW–22kW EV chargers Introduction The on-board charger (OBC) is one of the most power-dense converters in an electric vehicle. Converting AC grid power to high-voltage DC battery charging requires a carefully optimized magnetic component stack—including power factor correction (PFC) inductors, high-frequency transformers, common mode chokes (CMC), […]
Magnetic Core Applications in EV Charging, Solar Inverters & Industrial Power
How advanced magnetic materials are driving efficiency gains in modern power electronics Introduction Magnetic cores are the unsung heroes of modern power electronics. Whether you’re charging an electric vehicle, running a solar inverter, or powering industrial automation, the performance of every converter depends heavily on the magnetic core material selected. As energy efficiency regulations tighten […]
Magnetic Core Selection Guide: Types, Properties & How to Choose
What Is a Magnetic Core? A magnetic core is a piece of soft magnetic material used in inductors, transformers, and electric motors to increase magnetic flux density and confine magnetic fields. By providing a low-reluctance path for magnetic lines of force, the magnetic core dramatically boosts the inductance and efficiency of wound components — making […]
Rogowski Coil Working Principle, Applications & Selection Guide
What Is a Rogowski Coil? A Rogowski coil is a special type of air-cored current transformer used for measuring alternating current (AC) and pulsed current in electrical systems. Named after German physicist Walter Rogowski, this flexible helical coil wraps around a current-carrying conductor without making electrical contact, providing isolated current measurement with excellent linearity and […]
Flat Transformer Design Guide
Flat Transformer Design Guide A flat transformer, also known as a planar transformer, uses flat copper traces on printed circuit boards instead of round wire windings. This design achieves extremely low profile height, excellent thermal performance, and repeatable parasitic control, making it ideal for high density power converters. Working Principle Flat transformers follow the same […]
Ni-Zn Ferrite vs Mn-Zn Ferrite Cores
Ni-Zn Ferrite vs Mn-Zn Ferrite: Which Core to Choose? Ferrite cores are classified into two main families: nickel-zinc (Ni-Zn) and manganese-zinc (Mn-Zn). Each has distinct magnetic properties that determine its ideal application. Understanding the difference is essential for selecting the right core for EMI filters, inductors, and transformers. Magnetic Property Comparison Property Ni-Zn Ferrite Mn-Zn […]
Common Mode Choke Working Principle Explained
What Is a Common Mode Choke? A common mode choke (CMC) is a magnetic component with two or more windings wound in opposite directions on the same core. It blocks common mode noise while allowing normal differential mode signals to pass freely. It is the most effective single-component solution for EMI suppression in power supplies, […]
Coupled Inductor Design and Market Guide
What Is a Coupled Inductor? A coupled inductor is a magnetic component that shares a single core between two or more windings, allowing energy transfer and magnetic coupling between circuits. It is a key building block in multiphase buck converters, flyback converters, and power factor correction circuits where size reduction and improved transient response are […]