Magnetic cores for switching power supplies
1 June 2005
Power Electronics / Power Management
The advantages of switching power supplies (SPS) are well documented. Various circuits used in these units have also been sufficiently noted in literature. Magnetic cores play an important role in SPS circuitry. They are made from a variety of raw materials, a range of manufacturing processes, and are available in a variety of geometries and sizes.
Each material has its own unique properties. Therefore, the requirements for each application of a core in the power supply must be examined in light of the properties of available magnetic materials so that a proper core choice can be made.
Suntronika, the local South African agent for Magnetics (www.mag-inc.com), has a 23-page presentation available that describes the various magnetic materials used for cores in switching power supplies, their method of manufacture, and useful magnetic characteristics as related to major sections of the power supply.
Cores can be classified into three basic types: tape wound cores, powder cores, and ferrites. The choice of material, shape and size of cores used in switching power supplies can be complicated. The paper is intended to give engineers sufficient background information to at least guide them into the right ballpark for selecting the most cost-effective magnetic core for a particular design.
Additional core details on material descriptions and characteristics, plus sizes and specific design information, are available in a number of other catalogues also available from Magnetics.
If you wish to have this article e-mailed to you please contact Suntronika, +27 (0)11 403 3420, [email protected]
Further reading:
Reliable power solution
Conical Technologies
Power Electronics / Power Management
The Mibbo MLD-120W-xxVx is a robust DIN-rail mounted DC-DC converter with a 120 W output capacity specifically designed for industrial and automation applications.
Read more...
Easing the path for IPPs navigating local energy regulations
Power Electronics / Power Management
Independent Power Producers (IPPs) and developers venturing into South Africa’s renewable energy sector face an onerous and challenging regulatory landscape characterised by uncertainty in securing grid connections and considerable development costs.
Read more...
Wide input voltage buck-boost converter
Altron Arrow
Power Electronics / Power Management
The MAX77859 from Analog Devices is a high-efficiency, high-performance buck-boost converter targeted for systems requiring a wide input voltage range of between 2,5 and 22 V.
Read more...
High-density power module for AI at the edge applications
Altron Arrow
Power Electronics / Power Management
The MCPF1412 power module from Microchip has integrated I2C and PMBus interfaces for flexible configuration and monitoring.
Read more...
Development kit for TI’s SN6507
Power Electronics / Power Management
This comprehensive solution is designed to help engineers evaluate the performance of TI’s SN6507 transformer driver for isolated power supplies.
Read more...
High-voltage IGBT
Hi-Q Electronics
Power Electronics / Power Management
Diotec Semiconductor has launched the DIW030M060 IGBT, a 600 V, 30 A device with a built-in reverse diode.
Read more...
DC converter for Hi-Rel applications
Vepac Electronics
Power Electronics / Power Management
The MFK2812S from Crane Aerospace & Electronics is a DC-DC converter with an input voltage range of 16 to 50 V and an output of 12 V at up to 2,08 A.
Read more...
Distributed Energy Resource Management Systems
Schneider Electric South Africa
Power Electronics / Power Management
In addition to grid stability, DERMS also play a role in energy trading with some countries leveraging DERMS for real-time energy trading.
Read more...
BYD introduces new energy storage solutions
Power Electronics / Power Management
BYD Energy Storage, a business division of BYD, has introduced the new BYD Battery-Box LV5.0+ at the recent Solar & Storage Live Africa in Johannesburg.
Read more...
Micro energy harvesting
Power Electronics / Power Management
Panasonic Industry and Miromico partner to show effective micro energy harvesting for industrial applications.
Read more...
printer friendly version