Reduction of Losses and Efficiency Enhancement of a Zero-voltage Transition–Zero-current Transition Pulse-width Modulated Synchronous Buck Converter with a Simple Passive Auxiliary Circuit

2015 ◽  
Vol 43 (16) ◽  
pp. 1803-1812
Author(s):  
Sarode Shiva Kumar ◽  
Anup Kumar Panda ◽  
Tejavathu Ramesh
Keyword(s):  
Pulse Width ◽  
Buck Converter ◽  
Efficiency Enhancement ◽  
Pulse Width Modulated ◽  
Zero Current ◽  
Current Transition ◽  
Zero Voltage ◽  
Auxiliary Circuit

scholarly journals A Novel Soft-Switching Synchronous Buck Converter for Portable Applications

2008 ◽  
Vol 2008 ◽  
pp. 1-9
Author(s):  
Anup Kumar Panda ◽  
Swapnajit Pattnaik ◽  
K. K. Mohapatra
Keyword(s):  
Pulse Width ◽  
High Efficiency ◽  
Low Voltage ◽  
Buck Converter ◽  
Soft Switching ◽  
Pulse Width Modulated ◽  
Zero Voltage Switching ◽  
Overall Efficiency ◽  
Zero Voltage ◽  
Auxiliary Circuit

This paper proposes a zero-voltage-transition (ZVT) pulse-width-modulated (PWM) synchronous buck converter, which is designed to operate at low voltage and high efficiency typically required for portable systems. A new passive auxiliary circuit that allows the main switch to operate with zero-voltage switching has been incorporated in the conventional PWM synchronous buck converter. The operation principles and a detailed steady-state analysis of the ZVT-PWM synchronous converter implemented with the auxiliary circuit are presented. Besides, the main switch and all of the semiconductor devices operate under soft-switching conditions. Thus, the auxiliary circuit provides a larger overall efficiency. The feasibility of the auxiliary circuit is confirmed by simulation and experimental results.

Auxiliary circuit for zero‐voltage‐transition interleaved pulse‐width modulation buck converter

2016 ◽  
Vol 9 (3) ◽  
pp. 568-575 ◽  
Author(s):  
Morteza Esteki ◽  
Ehsan Adib ◽  
Hosein Farzanehfard ◽  
Sayed Abbas Arshadi
Keyword(s):  
Pulse Width ◽  
Pulse Width Modulation ◽  
Buck Converter ◽  
Zero Voltage ◽  
Auxiliary Circuit
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