A Buck-Boost DC-DC converter produces an output voltage that is:
AAlways less than input voltage with same polarity
BAC sinusoidal waveform
CInverted in polarity relative to input voltage
DAlways greater than input voltage with same polarity
Explanation
A Buck-Boost DC-DC converter can step up or step down input voltage magnitude based on duty cycle D. Its output voltage equation Vo = -Vi * (D / (1 – D)) indicates that output voltage is inverted in polarity relative to input.
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