
Diode Circuits
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The lter, the third block, smooths the output signal of the rectier preserving
only its very low frequency parts. The smoothing cannot be perfect because the
lter cannot furnish only the requested DC component, and the ripple factor “mea-
sures” this non-ideal scenario.
The group of blocks described so far (transformer, rectier, and lter) consti-
tutes a power supply circuit that is not stabilized. For a power supply that requires
extremely good stabilization, an electronic regulation can be added, furnished by
a regulator.
To the regulator, the fourth block, is assigned the task to drastically reduce (or
cancel) the ripple, ...