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A New Approach to Circuit Breaker Design Using Silicon Carbide Switches - Nov 21
Mechanical circuit breakers can be low cost with minimal losses, but they operate slowly and wear out. Solid state versions overcome the problems and are becoming increasing viable as replacements at...
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Power Electronics Europe News
 
Shielded inductors enable low copper losses for efficiency
The metal alloy powder core/flat wire construction inductors have a low profile (less than 2mm) and provide low copper loss, DC resistance and audible core noise as well as high current saturation. This type of shielded construction also produces low magnetic radiation offering good EMI performance and excellent temperature stability, says the company.

To increase reliability, external laser welding is used between wire and terminal, which eliminates potential mechanical stress on the solder joint from the high pressure moulding process. The alpha-winding construction enables a wider inductance range at a given form factor while maintaining a very low profile across all of the new series' inductance values.

The 11 models are designed to meet the high current density requirements in consumer electronics applications such as smartphones, tablet terminals, laptop computers, hard disk drives, solid state drives, servers, voltage regulators and compact power supply modules. The high current density of these applications means they typically operate at higher temperatures due to increased heat production, which can lead to higher degradation rates. By providing lower DC resistance, the inductors dissipate less power during operation, especially at higher current and switching frequencies. This helps enable a DC/DC converter or power supply to achieve higher power efficiency and meet application specifications, the company adds.

The 11 Model SRP0xxx shielded power inductor series are available now. They are RoHS-compliant and halogen-free.  

 



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