A New High-Voltage Gain Non-Isolated Zero-Current-Switching Bidirectional DC–DC Converter

The design of high voltage gain DC-DC boost converter is carried out with the addition of the Voltage Multiplier (VM) method. Here the coupled inductor and VM methodologies are proposed to reduce the switching and conduction losses of the Metal Oxide Semiconductor Field Effect Transistor (MOSFET). The Zero Current Switching (ZCS) technique with coupled inductor leakage inductance is used to operate the MOSFET. The leakage inductance is used to decrease the reverse recovery current across the diode. The design procedure of the boost converter and corresponding output waveforms are presented in this paper. Photovoltaic (PV) source converter with coupling inductors soft switching technique has been analyzed and tested in this paper.

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Modelling and control of a zero current switching high-voltage resonant converter power supply for radio frequency sources

IET Power Electronics ◽

10.1049/iet-pel.2010.0400 ◽

2012 ◽

Vol 5 (4) ◽

pp. 401 ◽

Cited By ~ 8

Author(s):

H. Wang ◽

P. Zanchetta ◽

J. Clare ◽

C. Ji

Keyword(s):

Radio Frequency ◽

High Voltage ◽

Power Supply ◽

Resonant Converter ◽

Current Switching ◽

Zero Current Switching ◽

Zero Current ◽

And Control

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Zero-current Switching Series Resonant High-voltage DC-DC Converter with Series-connected Primary Windings of Center-tapped Transformer

Electric Power Components and Systems ◽

10.1080/15325008.2014.986774 ◽

2015 ◽

Vol 43 (4) ◽

pp. 422-436 ◽

Cited By ~ 2

Author(s):

Shahid Iqbal ◽

Nor Azura Samsudin ◽

Soib Taib ◽

Sze Sing Lee

Keyword(s):

High Voltage ◽

Current Switching ◽

Zero Current Switching ◽

Zero Current ◽

Series Resonant

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A Novel Single-Switch High Step-Up DC–DC Converter with Three-Winding Coupled Inductor

Energies ◽

10.3390/en14196288 ◽

2021 ◽

Vol 14 (19) ◽

pp. 6288

Author(s):

Aline V. C. Pereira ◽

Marcelo C. Cavalcanti ◽

Gustavo M. Azevedo ◽

Fabrício Bradaschia ◽

Rafael C. Neto ◽

...

Keyword(s):

Magnetic Coupling ◽

Switching Loss ◽

Current Switching ◽

Conduction Loss ◽

High Voltage Gain ◽

Zero Current Switching ◽

Zero Current ◽

Voltage Stress ◽

Photovoltaic Applications ◽

Coupling Techniques

This paper introduces a single-switch, high step-up DC–DC converter for photovoltaic applications such as power optimizers and microinverters. The proposed converter employs two voltage multipliers cells with switched capacitor and magnetic coupling techniques to achieve high voltage gain. This feature, along with a passive clamp circuit, reduces the voltage stress across the switch, allowing for the employment of low RDSon MOSFET. This leads to low conduction loss of the switch. The diodes operate with zero-current switching at their turn-off transition, eliminating the reverse recovery losses. Additionally, the switch turns on with zero-current switching, leading to insignificant switching loss associated with its turn-on transition. The operation principle and steady-state analysis are presented and validated through experimental results obtained from a 140 W prototype of the proposed converter.

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