DC-DC converters, as voltage conversion devices, are widely used in electronic products, power systems, industrial control, new energy and other fields. As one of the important components of DC-DC converters, power inductors must meet the new technical requirements of DC-DC converters, and their product design must also have the characteristics of low loss, high efficiency, high reliability, and lightweight.
Power inductors are the core components that determine the performance of DC-DC converters. They not only provide key voltage regulation capabilities for DC-DC, but also help DC-DC maintain current continuity through energy accumulation and release, and can provide high current and high inductance for power systems of different voltage levels.
Today’s DC-DC converters have the following requirements for power inductors:
To improve the efficiency of DC-DC converters, the loss of power inductors needs to be lower;
To reduce the size of DC-DC converters, power inductors need to adopt new multilayer technology and thin film technology;
To increase the current capacity, the magnetic core of the power inductor needs to be strengthened;
To improve the output stability, the DC characteristics and temperature characteristics need to be improved;
To improve the transient response characteristics, the inductance value and ripple current of the power inductor need to be optimized;
To reduce the noise of the converter, the leakage flux of the power inductor needs to be reduced.
In terms of technology, more and more power inductors use integrated molding technology.
Based on this complex mutual constraint relationship, the selection of power inductors needs to be based on the efficiency, size and cost of the DC-DC converter.
ZXcompo power inductors are made of low-loss alloy powder materials and die-casted by an integrated molding process. They have the characteristics of low DC resistance, low loss, high efficiency, and wide application frequency. They maintain good current stability in high-frequency and high-temperature environments, and the saturation current is less affected by temperature. ZXcomp power inductors adopt a magnetic shielding structure design, which has strong anti-electromagnetic interference ability and can effectively contain the electric and magnetic fields generated by EMI.
In DC-DC converters, most of the losses of power inductors come from DC losses caused by DC resistance. In addition to the resistance characteristics of the material itself, the DC resistance value will also change with the thickness and number of turns of the winding, and the degree of heat will also affect the final loss. Therefore, it is also important to use a core material with less core loss.
High-performance DC-DC converters need to weigh the impact of various parameters on the selection of high-performance power inductors, and then make a comprehensive selection based on efficiency, size, cost, etc.
ZXcompo was founded in 2001 with the goal of becoming a top global manufacturer. ZXcompo is a high-quality magnetic and electronic component manufacturer that complies with ROHS, REACH, ISO 9001 quality standards. It offers a full range of passive electronic and magnetic components, including inductors, capacitors, resistors, transformers and filters. ZXcompo’s products are widely used in automotive, telecommunications, consumer electronics and other fields.
We have more than 1,000 types of inductors and have 15 years of experience in this field. If you have power inductor needs, please send your inductor product inquiries. Contact: sales@ZXcompo.com
