A New Family of Zero-Voltage-Transition Nonisolated Bidirectional Converters With Simple Auxiliary Circuit

2016 ◽  
Vol 63 (3) ◽  
pp. 1519-1527 ◽  
Author(s):  
Mohammad Reza Mohammadi ◽  
Hosein Farzanehfard
Keyword(s):  
Bidirectional Converters ◽  
New Family ◽  
Zero Voltage ◽  
Auxiliary Circuit

New Family of Zero-Voltage-Transition PWM Bidirectional Converters With Coupled Inductors

2012 ◽  
Vol 59 (2) ◽  
pp. 912-919 ◽  
Author(s):  
Mohammad Reza Mohammadi ◽  
Hosein Farzanehfard
Keyword(s):  
Coupled Inductors ◽  
Bidirectional Converters ◽  
New Family ◽  
Zero Voltage

A Zero Voltage Transition Boost Converter Employing a Soft Switching Auxiliary Circuit With Reduced Conduction Losses

2004 ◽  
Vol 19 (1) ◽  
pp. 130-139 ◽  
Author(s):  
N. Jain ◽  
P.K. Jain ◽  
G. Joos
Keyword(s):  
Boost Converter ◽  
Soft Switching ◽  
Zero Voltage ◽  
Auxiliary Circuit

A new family of zero-voltage-transition PWM converters with dual active auxiliary circuits

2006 ◽  
Vol 21 (2) ◽  
pp. 370-379 ◽  
Author(s):  
Wannian Huang ◽  
G. Moschopoulos
Keyword(s):  
Pwm Converters ◽  
New Family ◽  
Zero Voltage

A New Interleaved Bidirectional Zero Voltage Switching DC/DC Converter with High Conversion Ratio

2017 ◽  
Vol 26 (06) ◽  
pp. 1750105 ◽  
Author(s):  
Ebrahim Babaei ◽  
Zahra Saadatizadeh ◽  
Behnam Mohammadi Ivatloo
Keyword(s):  
Power Flow ◽  
Low Voltage ◽  
Zero Voltage Switching ◽  
Bidirectional Converters ◽  
Comprehensive Comparison ◽  
Step Down ◽  
High Conversion Ratio ◽  
Bidirectional Power Flow ◽  
Zero Voltage ◽  
Voltage Switching

In this paper, a new interleaved nonisolated bidirectional zero voltage switching (ZVS) dc–dc converter by using one three-windings coupled inductor is proposed. The proposed topology can provide high step-up and high step-down conversion ratios for boost and buck operations, respectively. Moreover, because of interleaving, the proposed converter has low input current ripple at low voltage side in both buck and boost operations. The proposed converter uses lower number of switches to have bidirectional power flow in comparison with other interleaved bidirectional converters. All used switches in the proposed converter are turned on under ZVS. The advantages of the proposed converter in comparison with the conventional interleaved converters are included in the capability of bidirectional power flow, ZVS operation for all switches and high step-up and high step-down voltage gain for boost and buck operations. In this paper, the proposed converter is analyzed completely and all equations of components are extracted as well as the ZVS conditions of all switches. Moreover, a comprehensive comparison between the proposed converter and conventional topologies is presented. To verify the accuracy performance of the proposed converter, the experimental results are given.

Zero‐voltage‐transition bridgeless power factor correction rectifier with soft‐switched auxiliary circuit

2016 ◽  
Vol 9 (3) ◽  
pp. 546-552 ◽  
Author(s):  
Chih‐Chiang Hua ◽  
Yi‐Hsiung Fang ◽  
Chin‐Hsiung Huang
Keyword(s):  
Power Factor ◽  
Power Factor Correction ◽  
Zero Voltage ◽  
Auxiliary Circuit

scholarly journals Soft-Switching Bidirectional Three-Level DC–DC Converter with Simple Auxiliary Circuit

Electronics ◽  
2019 ◽  
Vol 8 (9) ◽  
pp. 983
Author(s):  
Woo-Young Choi ◽  
Min-Kwon Yang
Keyword(s):  
Power Efficiency ◽  
Load Condition ◽  
Soft Switching ◽  
Power Switching ◽  
Switching Circuits ◽  
Switching Power ◽  
Turn On ◽  
Power Switches ◽  
Zero Voltage ◽  
Auxiliary Circuit

This paper suggests a soft-switching bidirectional three-level DC–DC converter with a simple auxiliary circuit. The proposed converter uses auxiliary LC resonant circuits so that the power switches operate under a soft-switching condition. The resonant operation of the LC circuits makes power switches turn on at zero voltage, eliminating the turn-on switching power losses. The proposed converter improves the power efficiency, not using complex power switching circuits, but using simple LC resonant circuits. The operation of the proposed converter is described according to its operation modes. Experimental results for a 1.0 kW prototype are discussed to verify its performance. The proposed converter achieved the power efficiencies of 97.7% in the step-up mode and 97.8% in the step-down mode, respectively, for the rated load condition.

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