Closed Loop Control of an Efficient AC-DC Step up Converter

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Provided by: International Research Publication House
Topic: Hardware
Format: PDF
Efficient AC/DC rectification of low voltages is critical for the realization of fully-functional vibrational energy harvesting systems. The conventional two stage power converters with bridge rectifiers are inefficient and may not be practical for the low voltage micro generators. This paper presents an efficient AC-to-DC power converter which avoids the bridge rectification and directly converts the low AC input voltage to the required high DC output voltage at a higher efficiency. The proposed converter consists of a boost converter in parallel with a buck-boost converter; which are operated in the positive half cycle and negative half cycle, respectively.
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