• Title/Summary/Keyword: dc boost control

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A Novel Boost DC-DC Converter using High Frequency Coupled Inductor Series Resonant ZCS-PFM Chopper Control Method (고주파 결합 인덕터 직렬 공진형 ZCS-PFM 초퍼 제어 방식을 이용한 새로운 승압형 DC-DC 컨버터)

  • Kim, Hong-Shin;Heo, Young-Hwan;Mun, Sang-Pil;Park, Han-Seok
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.66 no.2
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    • pp.63-68
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    • 2017
  • This paper proposes a new non-isolated DC conversion circuit topology of the voltage source coupled inductor series resonant high-frequency PFM controlled boost chopper type DC-DC power converter using two in one IGBT power module, which can efficiently operate under a principle of zero current soft switching for wide output regulation voltage setting ranges and wide fluctuation of the input DC side voltage as well as the load variation ranges. Its steady state operating principle and the output voltage regulation characteristics in the open-loop-based output voltage control scheme without PI controller loop are described and evaluated from theoretical and experimented viewpoints. Finally, in this paper the computer-aided simulation steady-state analysis and the experimental results are presented in order to prove the effectiveness and the validity of voltage regulation characteristics of the proposed series resonant zero current soft switching boost chopper type DC-DC power converter circuit using IGBTs which is based on simple pulse frequency modulation strategy more than, 20kHz.

Novel Self-Excited DC-DC Converters (새로운 자려식 DC-DC 컨버터)

  • Lee, Soung-Ju;Ahn, Tae-Young
    • Proceedings of the KIEE Conference
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    • 1999.07f
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    • pp.2505-2507
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    • 1999
  • This paper presents novel self excited DC-DC converters such as Buck-boost type, Buck type and also non-inverting Buck-boost type. The proposed converters has the following advantages: simple topology, small number of circuit components, easy control methode. Therefore, these converters are suitable for the portable appliances with battery source. Theoretical analysis and experimental results for SOW class Buck-boost type self oscillation DC-DC converter have been obtained, which demonstrate the high efficiency and good performance.

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A Study On The Power Factor Correction Of The Boost Converter Without The Input Current Measurement (입력 전류의 측정이 필요없는 Boost 컨버터의 역률 보정에 관한 연구)

  • Cho, Sang-Jun;Lee, Kwang-Won
    • Proceedings of the KIEE Conference
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    • 1996.07a
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    • pp.376-378
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    • 1996
  • This paper presents a new PFC control method which replaces a fast line current measurement with a filtered load current measurement. Using the power balance relation between the input and the output of the boost converter. the input current can be described as the function of load current. Thus the PWM signal which effects the switching control of the boost converter is generated using the PFC input voltage, the PFC output voltage and the load current as input variables. By using a filter between the bridge rectifier and a dc-to-dc converter, the input voltage of the dc-to-dc converter is forced to always maintain above zero volt. Then the input current traces a sinewave in phase. The proposed scheme accomplishes a very high power factor and a low harmonic distortion of the line current. The validity of this scheme is demonstrated through simulation.

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A Study on the Simultaneous Control of Buck and Boost DC-DC Converter by Fuzzy Controller (퍼지 제어기에 의한 강압형 및 승압형 DC-DC 컨버터의 동시제어)

  • Park, Hyo-Sik;Kim, Hee-Jun
    • The Transactions of the Korean Institute of Electrical Engineers B
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    • v.50 no.2
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    • pp.86-90
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    • 2001
  • This paper presents a multi output converter system that controls, simultaneously, the separate buck converter and boost converter with the different specification by one digital controller using fuzzy algorithm. As two separate converters are regulated by only one DSP, it is possible to achieve the simple digital control circuit for regulating multi output DC-DC converter. Inference procedure of fuzzy controller is included. The control characteristics of each PWM DC-DC converter is validated by experimental results.

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Resonant Parametric Perturbation Method to Control Chaos in Current Mode Controlled DC-DC Buck-Boost Converter

  • Kavitha, Anbukumar;Uma, Govindarajan
    • Journal of Electrical Engineering and Technology
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    • v.5 no.1
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    • pp.171-178
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    • 2010
  • Resonant parametric perturbation (RPP) method is an effective non-feedback method for controlling chaos. In this paper, the above method is applied for the current programmed buck-boost dc-dc converter which exhibits chaotic for wide parameter variations. The different possible operating regimes leading to chaotic operation of the current mode controlled buck-boost converter is discussed and the control of chaos by RPP method is demonstrated through computer simulations and experimental studies. The converter is stabilized to period 1 operation practically.

A Study on Buck-Boost DC-DC Converter of Soft Switching (소프트 스위칭형 벅-부스트 DC-DC 컨버터에 관한 연구)

  • Kwak, Dong-Kurl
    • The Transactions of the Korean Institute of Power Electronics
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    • v.12 no.5
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    • pp.394-399
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    • 2007
  • In this paper, we study on a novel Buck-Boost converter of high efficiency by soft switching method. The proposed Buck-Boost converter is applied to new soft switching method in restraint of increment of switching power loss in the conventional Buck-Boost converter. The soft switching circuit is designed to modification of a energy storage inductor and a snubber circuit used by the conventional converter, and then the proposed converter is simplified. The controlling switches of the proposed converter is operated with soft switching by a partial resonance behavior. The output voltage of the converter is regulated by PWM control technique. The discontinuous mode action of current flowing into inductor makes to simplify control method and control components. The proposed Buck-Boost converter is compared with the conventional converter. Some computer simulative results and experimental results are confirmed to the validity of the analytical results.

Boost-Half Bridge Single Power Stage PWM DC- DC Converters for PEM-Fuel Cell Stacks

  • Kwon, Soon-Kurl;Sayed, Khairy F.A.
    • Journal of Power Electronics
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    • v.8 no.3
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    • pp.239-247
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    • 2008
  • This paper presents the design of 1 kW prototype high frequency link boost half bridge inverter-fed DC-DC power converters with bridge voltage-doublers suitable for small scale PEM fuel cell systems and associated control schemes. The operation principle of this converter is described using fuel cell modeling and some operating waveforms. The switching mode equivalent circuits are based on simulation results and a detailed circuit operation analysis at soft-switching conditions.

Characteristic of Boost input type active clamp DC-DC converter (Boost 입력형 능동클램프 DC-DC 컨버터의 동작특성)

  • Ceong, Cin-Beom;Kim, Hee-Jun
    • Proceedings of the KIEE Conference
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    • 2001.04a
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    • pp.301-303
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    • 2001
  • This paper proposes the boost input type active clamp DC-DC converter featuring the high efficiency and improved EMI characteristics. The main characteristic of the converter is to operate with the non-pulsating input and output currents. Besides, it has the zero-voltage switching (ZVS) and low voltage stress characteristics. For the proposed converter, the detailed operation principles and the simulation results are presented.

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DC-DC Boost Converter with Dead-Time Adaptive Control and Power Switching (Dead-Time 적응제어 기능과 Power Switching 기능을 갖는 DC-DC 부스트 변환기)

  • Lee, Joo-young;Yang, Min-jae;Kim, Doo-Hoi;Yoon, Eun-jung;Yu, Chong-gun
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2013.10a
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    • pp.361-364
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    • 2013
  • Since the non-overlapping gate driver used in conventional DC-DC boost converters generates fixed dead-times, the converters suffer from the body-diode conduction loss or the charge-sharing loss. A adaptive control method has been proposed to reduce these loses. In this method, however, occurrence of and overlapping time of two power transistors in CCM results in reduction of efficiency. In this paper, to overcome this problem a new adaptive control method in proposed, and a DC-DC boost converter with the proposed adaptive control and power switching has been designed in a 0.35um CMOS process. The designed converter outputs 3.3V from a input voltage of 2.5V. The switching frequency is 500kHz and the maximum power efficiency is 95.3% at a load current 150mA. The designed chip area is $1720um{\times}1280um$.

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Design of Single-Inductor Dual-Output Boost-Boost DC-DC Converter with Dual Feedback Loop Based on Relative Sawtooth Generator (Dead-time을 갖는 톱니파 발생기를 이용한 이중 피드백 루프 기반 단일 인덕터 이중 출력 승압형 변압기 설계)

  • Yun, Dam;Kim, Dong-Young;Lee, Kang-Yoon
    • Journal of IKEEE
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    • v.18 no.2
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    • pp.220-227
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    • 2014
  • This paper presents a control method of Single-Inductor Dual-Output DC-DC Converter using Common mode feedback and differential feedback loops. To generate duty used for differential mode feedback loop, this paper propose relative sawtooth circuit using current divider circuit which makes ramp signal with variable dead-time. Two outputs of the Single-Inductor Dual-Output DC-DC Converter are specified for 2.8 V and 4.2 V with input voltage 2.5 V. The maximum conversion efficiency of designed SIDO DC-DC Converter is 95% at total output power of 539mW. Cross regulations of Boost1 and Boost2 are 3.57% and 4% each, when increasing twice times output current.