Characteristics of a New Series-Resonant Converter with a Parallel Resonant Circuit
- 1 January 1987
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
Conventional series-resonant converters suffer from wide variations in conversion frequency during constant voltage regulation, resulting in audible noise under light-load conditions. A new series-resonant converter has been developed in order to eliminate this problem. The converter uses a parallel resonant circuit with a resonant frequency of over 20 kHz installed in series with the load circuit. The output voltage is thus regulated by varying the conversion frequency in a higher area than that of a conventional series-resonant converter. An efficient, lightweight small-sized rectifier is developed using this new series-resonant converter. The rectifier unit can convert 200-volt AC to 48-volt DC and is capable of supplying an output current of 30 amps. Efficiency for 50 to 100% output current is 92%. The new rectifier is also free from any audible noise.Keywords
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- Characteristics of a New Series Resonant ConverterPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1982