Practical 4.4KW ZVZCS Full-Bridge Power Converter Design

2014 ◽  
Vol 998-999 ◽  
pp. 450-453
Author(s):  
Bao Wen Sun
Keyword(s):  
Power Supply ◽  
Power Converter ◽  
Working Process ◽  
Excellent Performance ◽  
Circuit Topology ◽  
Turn On ◽  
Zero Current ◽  
Market Requirements ◽  
Converter Design ◽  
Zero Voltage

Paper presents a practical circuit topology and analyzes the converter working process. The converter leading pipe is used MOSFET to achieve a zero voltage turn-on and turn-off, and lagging using is used IGBT to achieve a zero current turn-on and turn-off. After the topology circuit parameters selected by the relevant waveform acquisition, the converter design is verified correct. By running on the power supply operation, converter excellent performance meets the market requirements.

Full-Bridge ZVZCS Converter Design Based on Power System

2014 ◽  
Vol 945-949 ◽  
pp. 2863-2866
Author(s):  
Bao Wen Sun
Keyword(s):  
Power Consumption ◽  
Power System ◽  
Efficiency Ratio ◽  
Working Process ◽  
Circuit Topology ◽  
Turn On ◽  
Lead Pipe ◽  
Zero Current ◽  
Converter Design ◽  
Zero Voltage

It is very common that the power consumption is too high and the efficiency ratio is too low in the field of the current full-bridge ZVZCS Converter, thus a practical circuit topology is designed and its working process is analyzed to solve the problem. The converter lead pipe can achieve a zero voltage turn-on and turn-off by using MOSFET, and a zero current turn-on and turn-off lagging by using IGBT. By analyzing the relevant waveform of the converter, the correctness of the converter designed is verified.

A Novel High Power Factor Soft-Switching Converter

2012 ◽  
Vol 433-440 ◽  
pp. 5549-5555
Author(s):  
Yun Tao Yue ◽  
Yan Lin
Keyword(s):  
Power Factor ◽  
High Power ◽  
Power Supply ◽  
High Efficiency ◽  
Soft Switching ◽  
Switching Converter ◽  
Turn On ◽  
High Power Factor ◽  
Power Factor Corrector ◽  
Zero Voltage

A novel scheme of low power communication power supply with high power factor and soft-switching is presented, a power factor corrector and dc/dc converter of passive lossless soft-switching is based on a ML4803 IC control. DC/DC converter introduces a novel two-transistor forward soft-switching technique, which realizes zero-voltage turn-on and turn-off, with no additional switches. a communication power supply module is developed in this paper. It has the characteristics of rapid dynamic response, high power factor, high efficiency and small bulk ect.

scholarly journals A new ZCZVT commutation cell for PWM DC-AC converters

2004 ◽  
Vol 15 (2) ◽  
pp. 162-171 ◽  
Author(s):  
C. M. de O. Stein ◽  
H. L. Hey ◽  
J. R. Pinheiro ◽  
H. Pinheiro ◽  
H. A. Gründling
Keyword(s):  
Design Procedure ◽  
Experimental Results ◽  
Cell Design ◽  
Load Range ◽  
Switching Operation ◽  
Full Load ◽  
Turn On ◽  
Zero Current ◽  
Ac Converters ◽  
Zero Voltage

This paper proposes a new auxiliary commutation cell for PWM inverters that allows the main switches to be turned on and off at zero voltage and zero current. The main switches zero current turn-on reduces the undesired effects of parasitic inductances related to the circuit layout. The main diodes reverse recovery losses are minimized since di/dt and dv/dt are controlled. The ZCZVT commutation cell is located out of the main power path of the converters and is activated only during switching transitions. Additionally, the auxiliary switches are turned on and off at ZCS and use the same ground signals of the upper main switches. The commutation losses are practically reduced to zero. Soft switching operation is guaranteed for full load range without changes in command strategy. The operation of the ZCZVT PWM full-bridge DC-AC Converter is analyzed and an auxiliary commutation cell design procedure based on the analysis is proposed. Experimental results are presented to demonstrate the feasibility of the proposed commutation cell.

Analysis of Full Bridge Series Parallel Resonant Converter for Battery Chargers

2013 ◽  
Vol 768 ◽  
pp. 388-391
Author(s):  
M. Santhosh Rani ◽  
Julie Samantaray ◽  
Subhransu Sekhar Dash
Keyword(s):  
Resonant Frequency ◽  
Resonant Converter ◽  
Battery Charger ◽  
Passive Components ◽  
Turn On ◽  
Secondary Battery ◽  
Battery Chargers ◽  
Zero Current ◽  
Simulation Results ◽  
Zero Voltage

This paper presents a novel application of full-bridge series parallel resonant converter (FBSPRC) for dc source and secondary battery interface. Secondary batteries has been widely used in the application of residential, industrial and commercial energy storage systems because of its low energy conversion loss, which enhances the systems overall efficiency. A series parallel loaded resonant converter (SPRC) which is a subset of DC-DC converter can be operated with either zero-voltage turn-on (above resonant frequency) or zero current turn off (below resonant frequency) to eliminate the turn on and turn-off losses of the semiconductor devices. This converter is widely used to achieve reduction in size of the passive components of the converter such as inductor, capacitor and transformers. Simulation results based on a 12V 45Ah battery charger are proposed to validate the analysis and to demonstrate the performance of the proposed approach. Satisfactory performance is obtained from the measured results. The simulation results validate the effectiveness of the chosen battery charger.

scholarly journals Selection of Inductor and Snubber Capactor to Optimize the Size and Efficiency of DC-DC Switching Power Converter

2018 ◽  
Vol 7 (1) ◽  
pp. 49-52
Author(s):  
N. M. Mahesh Gowda ◽  
S. S. Parthasarathy
Keyword(s):  
Power Converter ◽  
Maximum Efficiency ◽  
Transistor Switch ◽  
Switching Power ◽  
Turn On ◽  
Resonant Transition ◽  
Gate Signal ◽  
Zero Voltage ◽  
Conduction Mode ◽  
Selection Of

This paper presents a selection of inductor and snubber capacitor in non-isolated synchronous DC-DC switching power converter. The circuit is made to operate in Synchronous Discontinuous Conduction Mode (SDCM)/Forced Continuous Conduction Mode (FCCM) of operation for minimum inductor value, to reduce the size, weight and cost of the converter. The turn off loss of the switch induced by SDCM of operation is minimized by connecting snubber capacitor across the transistor switch. Before the switch is turned ON, snubber capacitor requires certain amount of energy must be stored in the inductor to discharge the capacitor energy [1]. The question is how much capacitor and inductor value is required. A series of MATLAB script are executed to find minimum inductor value for FCCM of operation and to select snubber capacitor for maximum efficiency. Complementary gate signals are used to control the ON and OFF of main and auxiliary switch. SDCM of operation due to complementary control gate signal scheme, minimum turn on loss of the transistor switch and low diode reverse recovery loss are achieved. Thus the Zero Voltage Resonant Transition (ZVRT) of transistor switch is realized, both turn on and turn off loss is minimized and also removes the parasitic ringing in inductor current.

An Improved Zero Voltage Transition PWM Boost Converter with an Active Snubber Cell

2016 ◽  
Vol 25 (10) ◽  
pp. 1650128 ◽  
Author(s):  
Sevilay Cetin
Keyword(s):  
Energy Transfer ◽  
Boost Converter ◽  
Maximum Efficiency ◽  
Current Stress ◽  
Zero Voltage Switching ◽  
Turn On ◽  
Zero Current Switching ◽  
Zero Current ◽  
Voltage Stress ◽  
Zero Voltage

This study presents an improved zero voltage switching (ZVS) boost converter with an active snubber cell providing soft switched operation for all semiconductors. The active snubber cell reduces the reverse recovery loss of the boost diode and also provides the zero voltage transition (ZVT) Turn-on and ZVS Turn-off for the boost switch. The zero current switching (ZCS) Turn-on and ZVS Turn-off for the snubber switch is also achieved. All diodes in the converter can be operated with soft switching (SS). In the snubber cell, SS energy can be transfered effectively to the output by the use of a snubber inductor and a capacitor. This energy transfer allows the use of additional parallel connected capacitor to the boost switch to provide ZVS turning off. There is no additional voltage and current stress on the boost switch and boost diode. The voltage stress of the snubber switch is also limited by the output voltage and the current stress of the snubber switch is reduced by the energy transfer to the output. SS operating of the semiconductors is maintained at very wide load ranges. The operation of the proposed converter is presented with a detailed steady state analysis. The predicted theoretical analysis is validated by a prototype with 500[Formula: see text]W output power and 100[Formula: see text]kHz operating frequency. The measured maximum efficiency values are obtained as approximately 97% and 85.4% at full load and 10% load conditions, respectively.

Design of Dimmable LED Lighting for DC Storage Power Supply

2013 ◽  
Vol 311 ◽  
pp. 238-242
Author(s):  
Yong Nong Chang ◽  
Hung Liang Cheng ◽  
Chih Ming Kuo
Keyword(s):  
Power Supply ◽  
High Efficiency ◽  
Power Converter ◽  
Operating Efficiency ◽  
Resonant Converter ◽  
Led Lighting ◽  
Zero Current Switching ◽  
Zero Current ◽  
Circuit Structure ◽  
Driving Circuit

In this paper, a dimmable LED lighting driving circuit with high efficiency for DC storage power supply is proposed. In this research, Class-E resonant converter is principal circuit structure and possesses superior efficiency in the power converter. LED lighting set accompanied with multiple transformers in cascade are employed, which can improve current uniform problem and increase operating reliability. Furthermore, integral cycle switching technique will be utilized to implement the dimmer design, integral cycle switching control dimmer possesses the advantage of zero-current-switching (ZCS) and can effectively promote the operating efficiency

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