PAPER SESSION 3: METHODS AND TOPOLOGIES
A Simple Post-Filter Feedback Topology for
A feedback topology shall be proposed that allows the
straightforward inclusion of the output filter into the
feedback loop. It can be adapted to high- or low-Q
output filters equally well. It is not restricted to either
self-oscillating or carrieróbased modulator topologies.
One advantage is that the slew-rate requirements
on the operational-amplifiers used for the proposed
topology are quite relaxed since they are not
forced to handle fast transients. Another advantage is
that the feedback branch is based on resistors only.