Implementation of digitally controlled phase shift full bridge converter for server power supply

Cho, Je-Hyung; Seong, Hyun-Wook; Jung, Shin-Myung; Park, Jin-Sik; Moon, Gun-Woo; Youn, Myung-Joong

doi:10.1109/ecce.2010.5617915

Cited by 28 publications

(11 citation statements)

References 14 publications

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“…Where Vbus,min is designed by considering turn ratio, duty, output voltage and voltage loss of DC/DC stage as shown in (4). (4) and TABLE I, the specifications of boost inductance (L), output capacitance (C,), power device (S), output diode (D) and bridge rectifiers will be designed and selected.…”

Section: Converter For Universal Inputmentioning

confidence: 99%

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FPGA-based digital-controlled power converter designed with universal input meeting 80 plus platinum efficiency code and standby power code for sever power applications

Lai

Ho²

2014

2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)

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This paper contributes to the design and control of digital-controlled power converter meeting platinum efficiency code and standby power code for sever power applications.Hardware design, control methods and software implementation based upon FPGA will be presented. First, design of hardware and controller is presented, and followed by the loss analysis of power converter to provide a systematic approach to meeting the platinum efficiency code. A feed-forward control for PFC stage with wide range input voltage is presented to provide a constant bandwidth despite of input voltage variation. Two control modes for PSFB converter are presented to meet standby power code. Software implementation based upon FPGA is then included.Experimental results of FPGA-based digital-controlled power converter are presented. It will be shown the standby power is less than 0.5W and light load efficiency is improved to go up to more than 90% for both low line and high line input voltage.Moreover, it will be confirmed that the platinum efficiency code can be met under 20%, 50% and 100% load conditions. These results fully support the claims and contributions of this paper.

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Section: Converter For Universal Inputmentioning

confidence: 99%

“…(4) and TABLE I, the specifications of boost inductance (L), output capacitance (C,), power device (S), output diode (D) and bridge rectifiers will be designed and selected. More details of the hardware design are described as follows.…”

Section: Converter For Universal Inputmentioning

confidence: 99%

FPGA-based digital-controlled power converter designed with universal input meeting 80 plus platinum efficiency code and standby power code for sever power applications

Lai

Ho²

2014

2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)

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“…In spite of its advantageous features, feedback control for soft switched PSPWM full-bridge converters is still confined to simple linear time-invariant design, e.g., proportional-integral (PI) or lead-lag compensators based on a linearized model [9][10][11][12]. As pointed out by [13,14], due to the increased number of topological stages and the PWM duty cycle being affected by input voltage, output voltage, and load current, the dynamics of a PSPWM full-bridge converter is much more sophisticated than that of a simple buck converter.…”

Section: Introductionmentioning

confidence: 99%

Robust Adaptive Fuzzy Control for a Class of Switching Power Converters

Chen¹

2017

Modern Fuzzy Control Systems and Its Applications

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This chapter provides the reader with a control-centric modeling and analysis approach along with a nonlinear control design for a class of switching power converters. A comprehensive model combining the respective state variable models of the interval subsystems is established. Comparison with PSpice simulation justifies the credibility of the model. Based on this model, internal/BIBO stability can be studied for each interval subsystem. Moreover, controllability and observability can also be analyzed to help determine subsequent control configuration. The established model is further investigated for advanced control design, i.e., robust adaptive fuzzy control.

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“…In many of the previous works on digital feedback control of full-bridge DC-DC converter, high end processors have been used [4], [5]. Such processors have high clocking rates and hence issues of resolution are less of a concern, but the cost factor would not favor their use in many applications.…”

Section: Introductionmentioning

confidence: 99%

“…In [6], a discrete pole placement approach has been used, while domain design was employed in [4]. [5] reports controller design through suitable allocation of poles and zeros. It may be noted that relatively complex design techniques have been used in all these works.…”

Section: Introductionmentioning

confidence: 99%

Digital voltage-mode-control of a full-bridge phase-shift-modulated DC-DC converter

George¹,

Panchalai

Sebastian³

et al. 2014

2014 Annual International Conference on Emerging Research Areas: Magnetics, Machines and Drives (AICERA/iCMMD)

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Voltage-mode-control of a phase-shift-modulated fullbridge DC-DC converter, using a digital Proportional-Integral (PI) controller, is described in this paper. For implementing the digital controller, a low cost 16 bit microcontroller, dsPIC30F2010, is used. External hardware requirements are quite minimum, as the microcontroller has an inbuilt PWM module and ADC. Frequency response method is employed here to directly design the digital controller. Alongside, the concern of limit cycle oscillations is addressed, while maintaining converter switching frequency and ADC resolution at comfortably high levels. Performance of the digital feedback controller is checked using a 300 W, 100 V prototype converter.

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Implementation of digitally controlled phase shift full bridge converter for server power supply

Cited by 28 publications

References 14 publications

FPGA-based digital-controlled power converter designed with universal input meeting 80 plus platinum efficiency code and standby power code for sever power applications

FPGA-based digital-controlled power converter designed with universal input meeting 80 plus platinum efficiency code and standby power code for sever power applications

Robust Adaptive Fuzzy Control for a Class of Switching Power Converters

Digital voltage-mode-control of a full-bridge phase-shift-modulated DC-DC converter

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