Zero‐current switching method for dc–dc buck converter in portable application

2015 ◽  
Vol 51 (23) ◽  
pp. 1913-1914 ◽  
Author(s):  
Haozhou Zhang ◽  
Menglian Zhao ◽  
Xiaobo Wu
Keyword(s):  
Buck Converter ◽  
Current Switching ◽  
Zero Current Switching ◽  
Zero Current ◽  
Switching Method

scholarly journals A New Application of the Multi-Resonant Zero-Current Switching Buck Converter: Analysis and Simulation in a PMSG Based WECS

Energies ◽  
2015 ◽  
Vol 8 (9) ◽  
pp. 10219-10238 ◽  
Author(s):  
Tiara Freitas ◽  
Paulo Menegáz ◽  
Domingos Simonetti
Keyword(s):  
Buck Converter ◽  
Current Switching ◽  
Zero Current Switching ◽  
Zero Current

scholarly journals A Novel Application of Zero-Current-Switching Quasiresonant Buck Converter for Battery Chargers

2011 ◽  
Vol 2011 ◽  
pp. 1-16 ◽  
Author(s):  
Kuo-Kuang Chen
Keyword(s):  
High Efficiency ◽  
Low Cost ◽  
Characteristic Curve ◽  
Design Procedure ◽  
Buck Converter ◽  
Battery Charger ◽  
Current Switching ◽  
Battery Chargers ◽  
Zero Current Switching ◽  
Zero Current

The main purpose of this paper is to develop a novel application of a resonant switch converter for battery chargers. A zero-current-switching (ZCS) converter with a quasiresonant converter (QRC) was used as the main structure. The proposed ZCS dc–dc battery charger has a straightforward structure, low cost, easy control, and high efficiency. The operating principles and design procedure of the proposed charger are thoroughly analyzed. The optimal values of the resonant components are computed by applying the characteristic curve and electric functions derived from the circuit configuration. Experiments were conducted using lead-acid batteries. The optimal parameters of the resonance components were determined using the load characteristic curve diagrams. These values enable the battery charger to turn on and off at zero current, resulting in a reduction of switching losses. The results of the experiments show that when compared with the traditional pulse-width-modulation (PWM) converter for a battery charger, the buck converter with a zero- current-switching quasiresonant converter can lower the temperature of the activepower switch.

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