PAPER SESSION 3: METHODS AND TOPOLOGIES
Globally Modulated Self-Oscillating Amplifier
with Improved Linearity
Bruno Putzeys
Hypex
Electronics B.V., Groningen, The Netherlands
An exact oscillation criterion applicable to all binary
self-oscillating structures and accounting for modulation
index is derived. An exact expression for the
averaged DC transfer from the comparator input to
the output is derived, permitting precise prediction of
the linearity of the modulation process. A 400-W
amplifier optimized according to these insights was
built and results are presented.
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