Through heat dissipation techniques, and new techniques of produced Iron powder Magnetic Core (FeSi6), this splendor solution has achieved extended saturated levels of the core.
Groupo Premo has done it again. CoolMagTM , an innovative solution designed for OBC or DCDC converter where filtering at the output is mandatory and the increasing of power delivered cause heating in the power inductive components, increases the impedance versus frequency and at the same time extends the saturation levels at the core.
With this splendid solution, every 10ºC of temperature decrease, the reliability or MTBF (mean time between failures) is multiplied by 2. This makes your product's ability to extend the operation temperature range possible, increase the reliability of power inductive components as well as of OBC and/or DCDC converters.
The fundamental improvement in performance is partly due to the exceptional use of heat dissipation techniques, and new techniques of produced Iron powder Magnetic Core (FeSi6). and possible thanks to the distributed gap (FeSi6), isolated grain by grain, and a convenient compaction level of iron powder. All the while respecting the original size of the output inductor.
The solution is elemental also to other output chokes where the power dissipation is really critical, as copper heating (joule effect) and core heating (core losses). At times, the temperature rises during operation (also Bsat decrease as temperature increase), especially at high temperature range, where the final temperature value can be close to curie temperature and make operation more unstable.