Power inductor types and effects

General electronic circuit inductance hollow coil or coils with a core only by a small current, low withstand voltage; and there are hollow coil power inductors, but also with the core, the main feature is thick wire around the system, can withstand dozens of security, hundreds, thousands, even tens of thousands of security.

Power inductors is magnetically zoning cover and without cover two kinds of magnetic, mainly composed of a core and copper wire. In the circuit from the main filter and the oscillation effect.

A molded high-current inductor technology developed by the Mai Xiang one can replace magnetic coil.

Its production process from the initial orbit hydraulic hydraulic slide all changed. Product qualification rate control in 92%.

SMD power inductors, using the iron core, which serves better temperature stability and relative to other lower cost alternative core. SMD inductor shape can supply flexibility and variability when necessary, but more expensive. High magnetic flux is commonly found in the filter inductor instead of the power conversion circuit. Another performance tradeoff can be in the inductor current, inductor voltage (pin 14 to pin 16) to see the typical output voltage ripple waveform. The use of smaller inductance fdv0620-0.47μh produce higher peak inductor current, output voltage ripple below 18mv peak to peak.

SMD inductor peak to peak ripple generated just over 12mv. Peak current charges the output capacitor and load current supply. On the inflow and outflow of a large capacitance current, which will result in higher output voltage ripple. SMD inductor used for power supply filtering circuit inductance energy storage element is focused, on the curb conductive interference; Chip inductors in PCB circuit board of electronic equipment will be extensive use of inductive components and EMI filter components. In the resonant circuit, the inductance must have a high Q, narrow inductance variation, stable temperature coefficient of the resonant circuit in order to achieve narrow band, low temperature drift frequency requirements. High Q resonant circuit has a sharp peak.