Digital primary-side sensing control for flyback converters

Chang, Chih Ching; Lin, Yu-Tzung; Tzou, Ying-Yu

doi:10.1109/peds.2009.5385927

Cited by 24 publications

(7 citation statements)

References 13 publications

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“…In the HV bidirectional flyback converter, the primary and secondary turns are selected to avoid the saturation of the core during both charge and discharge modes. The converter operates with valley switching/BCM control during both charge and discharge processes [23] [32].…”

Section: Design Of Primary and Secondary Turnsmentioning

confidence: 99%

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Digital Control of a High-Voltage (2.5 kV) Bidirectional DC--DC Flyback Converter for Driving a Capacitive Incremental Actuator

Thummala

Maksimović

Zhang

et al. 2016

IEEE Trans. Power Electron.

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Section: Design Of Primary and Secondary Turnsmentioning

confidence: 99%

“…A digital primary-side sensing control technique is proposed in [23], for the output voltage/current regulation by employing an auxiliary winding. An adaptive blanking time control scheme to overcome the frequency hopping issue in a conventional QR control flyback converter with maximum frequency clamp is presented in [24].…”

Section: Introductionmentioning

confidence: 99%

Digital Control of a High-Voltage (2.5 kV) Bidirectional DC--DC Flyback Converter for Driving a Capacitive Incremental Actuator

Thummala

Maksimović

Zhang

et al. 2016

IEEE Trans. Power Electron.

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show abstract

“…In addition, they suffer from CTR degradation over time and temperature [12]. The primary-side control scheme uses an auxiliary winding instead of opto-coupler to achieve the output voltage information [13,14,15,16]. However, it decreases the accuracy of output voltage and increases the size of transformer.…”

Section: Introductionmentioning

confidence: 99%

A synchronous rectified flyback AC-DC converter using capacitor-coupled isolated communication

2020

IEICE Electron. Express

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This paper presents a synchronous rectified (SR) flyback AC-DC converter based on capacitor-coupled isolated communication. Instead of bulky opto-couples as isolators, the proposed converter integrates an isolated capacitor to accomplish communication between the primary and secondary side, in an attempt to reduce system size. In secondary side, an adaptive zero-current detector (ZCD) for driving synchronous rectifier is adopted to increase efficiency. The converter is designed and fabricated in a 0.18-m BCD process. The experimental results demonstrate that our scheme shrinks the isolator size by a factor of 52.24 times and simultaneously improves the system efficiency by 3% with ZCD.

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“…Several control systems based on Application-Specific Integrated Circuits (ASICs), fuzzy logic, and digital control systems are given, respectively, in [13][14][15]. These sources offer good explanation of the basic control concepts without connection to the specific load.…”

Section: Introductionmentioning

confidence: 99%

Analysis, Design, and Experimental Validation of a Primary Side Current-Sensing Flyback Converter for Use in a Battery Management System

et al. 2018

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Abstract:The purpose of the presented flyback converter is to equalise the voltage between the cells in a series string within a battery pack providing an active cell-balancing system. This would be an important part of a battery management system (BMS) for charging li-ion batteries in electric vehicles. The converter is based on primary side current sensing, where the conventional feedback circuit is omitted. The purpose of this converter is to improve efficiency by decreasing losses and to increase battery power density by decreasing the number of elements which constitute the power electronics; these are important factors for the future development of electric vehicle battery packs. Analysis of the circuit and the design procedure of the DC-DC flyback converter with primary current sensing is presented in this paper. Finally, several experimental converters have been built and tested to validate the authors' approach.

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Digital primary-side sensing control for flyback converters

Cited by 24 publications

References 13 publications

Digital Control of a High-Voltage (2.5 kV) Bidirectional DC--DC Flyback Converter for Driving a Capacitive Incremental Actuator

Digital Control of a High-Voltage (2.5 kV) Bidirectional DC--DC Flyback Converter for Driving a Capacitive Incremental Actuator

A synchronous rectified flyback AC-DC converter using capacitor-coupled isolated communication

Analysis, Design, and Experimental Validation of a Primary Side Current-Sensing Flyback Converter for Use in a Battery Management System

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