The power supply is a vital but often neglected part of any electronic product. It is the
interface between the noisy, variable and ill-defined power source from the outside
world and the hopefully clear-cut requirements of the internal circuitry. For the
purposes of this discussion it is assumed that power is taken from the conventional ac
mains supply. Other supply options are possible, for instance a low-voltage dc bus, or
the standard aircraft supply of 400Hz 48V. Batteries we shall discuss separately at the
end of this chapter.
7.1General
A conceptual block diagram for the two common types of power ...
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