> On 9/24/06, Harold Hallikainen <harold@hallikainen.org> wrote:
>>
>> I see a bit of similarity between the flyback and boost converter. The
>> difference is that during the collapse of the magnetic field, the output
>> of a boost converter is pulled from the "bottom" of the "primary" (and
>> only) winding, while in a flyback converter, the output is pulled from
>> the
>> "bottom" of the secondary winding. In the boost converter, the converter
>> output is in series with the incoming DC supply (boosting the voltage).
>> In
>> a flyback converter, the output is generally ground referenced and
>> isolated from the primary.
>>
>
> http://ece-www.colorado.edu/~ecen4517/labs/flyback/flyback.pdf
> The flyback converter is based on the buck-boost converter.

Interesting! If you look at figure 1(d), flip over the secondary circuit,
then connect the primary and secondary together, it looks like a boost
converter to me!

Harold


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