Abstract
A double input-parallel-output-series hybrid switched-capacitor boost (DIPOS-HSCB) converter is proposed which consists of two different kinds of input-parallel-output-series (IPOS) circuits, i.e., inner IPOS circuit and outer IPOS circuit. Two boost modules and one switched-capacitor network build an inner IPOS circuit based IPOS-HSCB converter and two IPOS-HSCB converters develop the outer IPOS circuit based DIPOS-HSCB converter. With the proposed DIPOS-HSCB converter, a high voltage-gain with low component stress and small input current ripple are achieved. Furthermore, an automatic current balancing function for all input inductor currents can be also achieved using a special carrier phase-shifted modulation scheme. A prototype rated at 200 V/120 W has been developed and the maximum efficiency of the proposed DIPOS-HSCB converter is 95% at 120 W. Both steady and dynamic results are presented to validate the effectiveness of the proposed DIPOS-HSCB converter.
Highlights
A double input-parallel-output-series hybrid switched-capacitor boost (DIPOS-HSCB) converter is proposed which consists of two different kinds of input-parallel-output-series (IPOS) circuits, i.e., inner IPOS circuit and outer IPOS circuit
This paper proposes a new high voltage-gain boost converter with low voltage stress, small input current ripple and automatic current balancing function
The input-parallel-output-series hybrid switchedcapacitor boost (IPOS-HSCB) converter shown in Fig. 1a is an integration of two interleaved boost converters and switched-capacitor technique [32]
Summary
Broad-Ocean Technologies, Novi, Michigan 30120, USA; 3. Electrical Engineering Department, Mansoura University, Mansoura 35516, Egypt)
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