Design and Implementation of a Novel High-Step-Up DC-DC Converter

2013 ◽  
Vol 284-287 ◽  
pp. 2498-2501 ◽  
Author(s):  
Chun An Cheng ◽  
Hung Liang Cheng ◽  
Chien Hsuan Chang ◽  
En Chih Chang ◽  
Fu Li Yang
Keyword(s):  
Power Conversion ◽  
Input Voltage ◽  
Power Converter ◽  
Voltage Level ◽  
Dc Voltage ◽  
Flyback Converter ◽  
Dc Power ◽  
Integrated Boost ◽  
High Output Voltage ◽  
High Output

This paper proposes a novel high-step-up DC-DC power converter for high output-voltage applications from a low level of input voltage. The presented power converter is composed of a integrated boost-flyback converter with two output windings plus cascaded voltage doublers to boost up the 12 V input voltage to a high DC voltage level of 400 V. Description of the presented DC-DC power conversion circuit, and experimental results of a prototype converter for providing 40W output power with a 12V input DC voltage are demonstrated.

Analysis of a Novel Isolated Input-Series and Output-Series Full-Bridge Bidirectional DC/DC Converter

2013 ◽  
Vol 273 ◽  
pp. 399-403
Author(s):  
Xiao Yu Zhao ◽  
Cong Wang ◽  
Feng Yang ◽  
Su Ke Wang
Keyword(s):  
High Voltage ◽  
Output Voltage ◽  
Power Conversion ◽  
Input Voltage ◽  
Soft Switching ◽  
High Power Density ◽  
High Input ◽  
Working Principle ◽  
High Output Voltage ◽  
High Output

A novel topology of isolated input-series and output-series (ISOS) full-bridge bidirectional DC/DC converter is described in this paper for the application requirement of high input voltage and high output voltage, which can be used in the next generation medium and high voltage power conversion systems. The proposed novel isolated bidirectional DC/DC converter not only can apparently decrease the stress of the switches, but also have the advantages, such as galvanic isolation, ease of realizing soft-switching control, high power density, and so on. In this paper, working principle of the proposed DC/DC converter is discussed in detail, the corresponding equations are derived, and the soft switching implementation is discussed too. In the end, simulation is done through PSIM to certify the feasibility of the proposed DC/DC converter and accuracy of the criterion.

scholarly journals Design of Single Inductor and Two Output DC - DC Converter

2020 ◽  
pp. 54-59
Author(s):  
S. Inbasakaran ◽  
Mahesh. K ◽  
Lithesh. J
Keyword(s):  
Output Voltage ◽  
Input Voltage ◽  
Power Supplies ◽  
Electronic Systems ◽  
Minimum Loss ◽  
Voltage Level ◽  
Dc Voltage ◽  
Electronic Circuitry ◽  
Dc Power ◽  
Common Goals

<p>A DC-DC converter is used to convert from one DC voltage level to another DC voltage level. The output voltage may be increased or decreased when compare to the input voltage based on the circuit topology. DC – DC converters are mainly used as a regulated and isolated power supplies in many applications. Regulated dc power supplies are needed for most analog and digital electronic systems. Most power supplies are designed to meet some or all of the following requirements:</p> <p><strong>Regulated output: </strong>The output voltage must be kept constant with respect to the change in output loading.</p> <p><strong>Isolation: </strong>The output may be required to be electrically isolated from the input.</p> <p>In addition to these requirements, common goals are to reduce power supply size and weight and improve their efficiency. A few applications of DC-DC converters are where 5V DC on a personal computer motherboard must be stepped down to 3V, 2V or less for one of the latest CPU chips; where 1.5V from a single cell must be stepped up to 5V or more, to operate electronic circuitry. The main focus in this paper is to generate dc voltage from a one level to other level with minimum loss. The need for such converters has risen due to the fact that transformers are unable to function on dc.</p>

scholarly journals A Modified High Voltage Gain SEPIC Based DC-DC Converter with Continuous Conduction Mode

2020 ◽  
Vol 6 (12) ◽  
pp. 268-274
Author(s):  
G.Vijaykumar and Dr.V.Geetha
Keyword(s):  
High Voltage ◽  
High Efficiency ◽  
Input Voltage ◽  
Voltage Gain ◽  
Pv System ◽  
Operating Modes ◽  
High Voltage Gain ◽  
Voltage Stress ◽  
High Output Voltage ◽  
High Output

A high voltage gain modified SEPIC converter is proposed in this paper. This proposed converter has many advantages i.e., high output voltage, lower voltage stress, high efficiency, voltage gain is high without any coupled inductor and transformer, continuous input current. Thus, there is no overshoot voltage at turn-off process for switches. By using single switches, the CCM mode operation can be easily controlled by this converter, so control system is simple and also wide output values is obtained only by modifying the duty cycle. This modified converter has lower components than conventional converter. The operating modes and design of modified converter are discussed. The output power of this converter is 6 watts. By this converter, this converter capable of developing the two and half times of input voltage. The PV system also used this converter to develop high voltage gain. This high voltage gain is achieved by using MATLAB/SIMULIMK platform.

Electric Power Converter with a Wide Input Voltage Range

2016 ◽  
Vol 7 (4) ◽  
pp. 1221
Author(s):  
K.O. Khokhlov ◽  
G.K. Khokhlov ◽  
A.V. Ishchenko ◽  
A.N. Cherepanov ◽  
A.S. Naronov
Keyword(s):  
Electric Power ◽  
Supply Voltage ◽  
Power Conversion ◽  
Experimental Studies ◽  
Input Voltage ◽  
Power Converter ◽  
Oil Well ◽  
Electronic Circuits ◽  
Voltage Range

The electric power converter for downhole telemetry systems of oil-well pumps include a downhole block connected to the pump that contains electronic circuits required for the operation of the motor pump sensors and transmission of data about their condition to the surface are described. A few methods of electric power conversion for this purpose are considered. The circuit contained two steps of voltage converting are proposed. The electrical scheme of this method is considered in the article. Proposed decisions are simulated and verified experimentally. The input high supply voltage range (200-4200 V) without loss of efficiency (even temporary) was obtained. The results of simulation and experimental studies have shown very close results.

scholarly journals Design and development of SEPIC DC-DC boost converter for photovoltaic application

2019 ◽  
Vol 10 (1) ◽  
pp. 406 ◽  
Author(s):  
Ibrahim Alhamrouni ◽  
M. K. Rahmat ◽  
F. A. Ismail ◽  
Mohamed Salem ◽  
Awang Jusoh ◽  
...  
Keyword(s):  
Power Supply ◽  
Output Voltage ◽  
Input Voltage ◽  
Dc Voltage ◽  
Photovoltaic Application ◽  
Dc Power ◽  
Power Switch ◽  
High Voltage Gain ◽  
Wide Range ◽  
New Construction

This study highlights a new construction of SEPIC DC-DC converter. The proposed converter aims for some features such as high voltage gain, continuous input current and reduce stress on the power switch. In addition, the circuit construction ensurs the simplicity in design along with signicant cost saving, since its components are readily available and smaller in size compared to the off-shelf components. This type of converter can adjust the DC voltage to maintain its output voltage to be constant. Typically, SEPIC operated in equipment that uses battery and also in wide range input voltage DC power supply. The converter is designed for renewable energy application where it is able to regulate the output voltage of the Photovoltaic (PV). The converter has been analysed based on different switching frequencies and duty cycle. Thus the outcome of the proposed converter can be achieved by using D=0.45 and fs=30 kHz. The proposed converter is supplied by 26V as an input voltage and produces 300V output and gives 94% of efficiency.

Sign in / Sign up

Export Citation Format

Share Document