Nonisolation Soft-Switching Buck Converter With Tapped-Inductor for Wide-Input Extreme Step-Down Applications

2007 ◽  
Vol 54 (8) ◽  
pp. 1809-1818 ◽  
Author(s):  
Joung-Hu Park ◽  
Bo-Hyung Cho
Keyword(s):  
Buck Converter ◽  
Soft Switching ◽  
Step Down

scholarly journals Soft Switching of Buck Converter with Coupled Inductor

2020 ◽  
pp. 272-277
Keyword(s):  
Output Voltage ◽  
Buck Converter ◽  
Soft Switching ◽  
Buck Converters ◽  
Matlab Simulink ◽  
Dc Voltage ◽  
Switching Losses ◽  
Step Down ◽  
Circuit Configuration

Buck converters are step down dc-dc converters to convert fixed dc voltage to controlled dc voltage. Generally, hard switching is used to control dc output voltage of buck converter. But this approach leads to high switching losses. In this paper, we propose a Soft Switching of Buck converter with Coupled Inductor, to reduce the switching losses. The circuit configuration has been designed with minimum components for realizing the soft switching. The Simulation of Soft switching of buck converter with coupled inductor circuit has been carried out using MATLAB/SIMULINK and the results obtained.

scholarly journals Soft Switching of Full-Bridge DC-DC Buck Converter

2020 ◽  
pp. 561-565
Keyword(s):  
Power Systems ◽  
Power Flow ◽  
Distribution Systems ◽  
Buck Converter ◽  
Soft Switching ◽  
Power Supplies ◽  
Power Circuit ◽  
Zero Voltage Switching ◽  
Zero Current Switching ◽  
Zero Current

The conventional Bidirectional Full-bridge dc -dc converter is inefficient and may not be practical for the low power applications. This paper specifies an efficient DC-DC Converter that avoids power losses by using soft switching techniques like Zero Voltage Switching and Zero Current switching. The soft switching of Bidirectional Full-bridge DC-DC Converter operates as a buck converter when the power is positive and as a boost converter when the power flow is negative. Applications of soft switching Bidirectional Full-bridge DC-DC Converter are uninterrupted power supplies (UPS), distribution Systems, battery charger circuits, telecom power supplies, computer power systems. Detailed analysis of the converter is carried out in buck mode to obtain relations between the power circuit parameters. Based on the analysis, control schemes are described to operate the converter. The proposed full bridge DC-DC converter is simulated in Buck mode using MATLAB /SIMULINK.

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