How do you choose the best inductor?
Therefore, the goal of highest efficiency is met by selecting an induc-tor that provides sufficient inductance to smooth out the ripple current while simultaneously minimizing losses. The inductor must pass the current without saturating the core or over-heating the winding.
How does a solar energy storage inductor work?
In this topology, the energy storage inductor is charged from two different directions which generates output AC current . This topology with two additional switching devices compared to topologies with four switching devices makes the grounding of both the grid and PV modules. Fig. 12.
When is inductor efficiency highest?
Inductor efficiency is highest when the combination of core and winding losses are the lowest. Therefore, the goal of highest efficiency is met by selecting an induc-tor that provides sufficient inductance to smooth out the ripple current while simultaneously minimizing losses.
Why do buck regulators use double duty energy storage inductors?
The energy storage inductor in a buck regulator functions as both an energy conversion element and as an output ripple filter. This double duty often saves the cost of an additional output filter, but it complicates the process of finding a good compromise for the value of the inductor.
How does Linear Technology affect inductor energy storage?
While one inductor’s current is increasing, the other’s is decreasing. There is also a significant reduction in the required inductor energy storage (approximately 75%). The inductor’s volume, and therefore cost, are reduced as well. See Linear Technology’s Application Note 77 for complete details.
How do inductor manufacturers optimize EF-ficiency?
Therefore, inductor manufacturers optimize inductor ef-ficiency by selecting low loss materials and designing inductors for minimal total loss. The use of rectangular “flat” wire may provide the lowest DCR in a given size to minimize DC loss.
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