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SMPS coupled output inductors

SMPS coupled output inductors

SMPS coupled output inductors

(OP)
a two-transistor forward converter has two outputs -
15V and 24V. The two outputs have coupled output inductors. Please explain how the coupled output inductors improve
the output cross regulation, reference preferred.

RE: SMPS coupled output inductors

Hi, a coupled choke avoids the need for seperatechokes for each aux output, reduces the number of turns required and simplifies preloading. The turns for each choke are in the same ratio as the main transformer.

RE: SMPS coupled output inductors

(OP)
The information provided is good, but the question is not
answered - how the coupled output inductors improve the
output cross regulation,,,

With separate inductors, the load of one output increases will result in the voltage increase of other output.
With coupled inductors, the voltage increase of other output should be smaller, WHY?

RE: SMPS coupled output inductors

Hi, because the chokes are coupled they act as a transformer.

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