Analysis and Design of a Soft-Switching Boost Converter With an HI-Bridge Auxiliary Resonant Circuit

2010 ◽  
Vol 25 (8) ◽  
pp. 2142-2149 ◽  
Author(s):  
Sang-Hoon Park ◽  
So-Ri Park ◽  
Jae-Sung Yu ◽  
Yong-Chae Jung ◽  
Chung-Yuen Won
Keyword(s):  
Boost Converter ◽  
Soft Switching ◽  
Resonant Circuit ◽  
Analysis And Design

scholarly journals Analysis and Design of a ZVT Resonant Boost Converter Using an Auxiliary Resonant Circuit

Electronics ◽  
2019 ◽  
Vol 8 (4) ◽  
pp. 466 ◽  
Author(s):  
Lee ◽  
Kim
Keyword(s):  
Boost Converter ◽  
Soft Switching ◽  
Experimental Results ◽  
Resonant Circuit ◽  
Switching Frequency ◽  
Analysis And Design ◽  
Switching Converter ◽  
Switching Losses ◽  
Resonant Inductor ◽  
Switching Method

In this paper, a new zero voltage transition (ZVT) resonant boost converter is proposed. A typical boost converter generates switching losses at turning on and turning off, and these losses cause a reduction in the efficiency of the whole system. This proposed ZVT resonant boost converter utilizes a soft switching method, using an auxiliary circuit with a resonant inductor, capacitor, and two auxiliary switches. Therefore, it can reduce switching losses more so than the conventional hard switching converter. Also, the conduction period of the resonant inductor current is reduced by using a modified circuit. An experiment is conducted with the converter, which steps up the voltage from 200 V to 380 V and its switching frequency and output power are 30 kHz and 4 kW, respectively. It is confirmed that the experimental results and simulation results are the same and the validity of this proposed converter is verified. The conventional converter and proposed converter are analyzed by comparing the experimental results of two converters under the same conditions. It is confirmed that all switches can achieve soft switching and the proposed converter improves on the conventional converter by measuring the efficiency of two converters.

scholarly journals HIGH FREQUENCY BOOST CONVERTER EMPLOYING SOFT SWITCHING AUXILIARY RESONANT CIRCUIT

2013 ◽  
pp. 262-267
Author(s):  
G. NARESH GOUD ◽  
Y. LAKSHMI DEEPA ◽  
G.DILLI BABU ◽  
P. RAJASEKHAR ◽  
N. GANGADHER
Keyword(s):  
Theoretical Analysis ◽  
High Frequency ◽  
Boost Converter ◽  
Soft Switching ◽  
Resonant Circuit ◽  
Switching Converter ◽  
Turn On ◽  
Switching Losses ◽  
Resonant Inductor ◽  
Switching Method

A new soft-switching boost converter is proposed in this paper. The conventional boost converter generates switching losses at turn ON and OFF, and this causes a reduction in the whole system’s efficiency. The proposed boost converter utilizes a soft switching method using an auxiliary circuit with a resonant inductor and capacitor, auxiliary switch, and diodes. Therefore, the proposed soft-switching boost converter reduces switching losses more than the conventional hard-switching converter. The efficiency, which is about 91% in hard switching, increases to about 97% in the proposed soft-switching converter. In this paper, the performance of the proposed soft-switching boost converter is verified through the theoretical analysis, simulation, and experimental results.

A new soft switching ZVT boost converter using auxiliary resonant circuit

2012 ◽  
Author(s):  
Dong-Woo Han ◽  
Hee-Jun Lee ◽  
Soo-Cheol Shin ◽  
Jun-Gu Kim ◽  
Yong-Chae Jung ◽  
...  
Keyword(s):  
Boost Converter ◽  
Soft Switching ◽  
Resonant Circuit

Analysis and Design of a New Soft-Switching Boost Converter With a Coupled Inductor

2014 ◽  
Vol 29 (8) ◽  
pp. 4270-4277 ◽  
Author(s):  
Xi Zhang ◽  
Lei Jiang ◽  
Junjun Deng ◽  
Siqi Li ◽  
Zheng Chen
Keyword(s):  
Boost Converter ◽  
Soft Switching ◽  
Analysis And Design

A soft switching boost converter using an auxiliary resonant circuit for a PV system

2011 ◽  
Author(s):  
In-beom Song ◽  
Doo-yong Jung ◽  
Young-hyok Ji ◽  
Seong-chon Choi ◽  
Yong-chae Jung ◽  
...  
Keyword(s):  
Boost Converter ◽  
Soft Switching ◽  
Resonant Circuit ◽  
Pv System

scholarly journals DC-DC converter with 50 kHz-500 kHz range of switching frequency for passive component volume reduction

2021 ◽  
Vol 11 (2) ◽  
pp. 1114
Author(s):  
Mohd Amirul Naim Kasiran ◽  
Asmarashid Ponniran ◽  
Nurul Nabilah Mad Siam ◽  
Mohd Hafizie Yatim ◽  
Nor Azmira Che Ibrahim ◽  
...  
Keyword(s):  
Boost Converter ◽  
Soft Switching ◽  
Volume Reduction ◽  
Resonant Circuit ◽  
Switching Frequency ◽  
Passive Component ◽  
Switching Loss ◽  
Passive Components ◽  
Turn On ◽  
High Switching Frequency

This paper presents the relationship of switching frequency towards passive components volume of DC-DC boost converter. Principally, the inductor current ripple and capacitor voltage ripple must be considered in order to design the inductor and capacitor, respectively. By increasing the switching frequency, smaller size and volume of passive component can be designed. As the consequences, the switching loss increases during switching transition at turn-ON and turn-OFF conditions. This paper used soft-switching technique to reduce the switching loss at turn-ON condition. The soft-switching technique is realized by adding resonant circuit in DC-DC boost converter. The effectiveness of resonant circuit will be analysed, thus, the efficiency of the converter can be improved. The range of switching frequency considered in the experimental are 50 kHz to 500 kHz. A 100 W prototype has been developed and tested in order to verify the principle. The switching loss experimentally confirm reduced by implementing soft-switching technique with efficiency converter improved from 96.36% to 97.12% when 500 kHz of switching frequency is considered. The passive components volume reduction is achieved when high switching frequency is used where the total volume of passive component when 50 kHz and 500 kHz are 0.083 dm3 and 0.010 dm3, respectively.

scholarly journals Implementation of Resonant and Passive Lossless Snubber Circuits for DC-DC Boost Converter

2018 ◽  
Vol 7 (4.30) ◽  
pp. 246
Author(s):  
A.N. Kasiran ◽  
A. Ponniran ◽  
A. A. Bakar ◽  
M.H. Yatim ◽  
M. K. R. Noor ◽  
...  
Keyword(s):  
Boost Converter ◽  
Soft Switching ◽  
Resonant Circuit ◽  
Switching Frequency ◽  
Passive Component ◽  
Switching Loss ◽  
Turn On ◽  
Switching Condition ◽  
Snubber Circuit ◽  
High Switching Frequency

This paper presents the comparison of resonant and passive lossless snubber circuits implementation for DC-DC boost converter to achieve soft-switching condition. By applying high switching frequency, the volume reduction of passive component can be achieved. However, the required of high switching frequency cause the switching loss during turn-ON and turn-OFF condition. In order to reduce the switching loss, soft-switching technique is required in order to reduce or eliminate the losses at switching devices. There are various of soft-switching techniques can be considered, either to reduce the switching loss during turn-ON only, or turn-OFF only, or both. This paper discusses comparative analyses of resonant and passive lossless snubber circuits which applied in the DC-DC boost converter structure. Based on the simulation results, the switching loss is approximately eliminated by applying soft-switching technique compared to the hard-switching technique implementation. The results show that the efficiency of resonant circuit and passive lossless snubber circuit are 82.99% and 99.24%, respectively. Therefore, by applying passive lossless snubber circuit in the DC-DC boost converter, the efficiency of the converter is greatly increased. Due to the existing of an additional capacitor in soft-switching circuit, it realizes lossless operation of DC-DC boost converter.

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