Advanced control circuit for intermediate bus converter

Miftakhutdinov, Rais; Luo, S. N.; Liang, Jiahao; Wiggenhorn, J.; Huang, Hong

doi:10.1109/apec.2008.4522925

Cited by 13 publications

(7 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Over the last two decades, the ICT equipment power distribution systems used in networking applications have changed dramatically, primarily due to increasing performance requirements and cost-related factors. The major transition occurred in the 1990s when the industry introduced Distributed Power Architecture (DPA) as an alternative to centralized power supply [1][2][3]. The centralized power supply configuration is modified with the addition of a front-end power supply that converts AC into DC power and feeds the backplane of the rack, as presented in Fig.…”

Section: Introductionmentioning

confidence: 99%

“…They tend to afford additional flexibility to systems and slightly shorter design cycles, but the system costs remain relatively high. As line card supply voltages (ICT equipment) increase to four/five times the initial requirements [2], the question has arisen as to how many isolated converters per line card should be used [2,4]. Narveson [4] suggested the use of a single discrete DC-to-DC converter of between 48 VDC and other load voltages.…”

Section: Introductionmentioning

confidence: 99%

“…Placing the POL near the load decreases parasites in the power supply plane and improves the dynamic response of the current profile. Another advantage of IBA is the potential reduction in the cost of power distribution [2].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Performance Comparison Analysis of a High Voltage DC LLC Resonant Converter for Telecom and Datacenter Applications

Darla

Chitra

2023

ECTI-EEC

View full text Add to dashboard Cite

Intermediate Bus Architecture (IBA) is used for power distribution in information communication technology (ICT) equipment due to the flexibility of its power distribution and cost-effectiveness compared to centralized or DC-mediated power. The reason for IBA's good performance in this context is its greater reliability and efficient Intermediate Bus Converter (IBC). Existing IBAs comprise low-voltage systems with multiple power, resulting in power loss. This study outlines the need for a high-voltage DC-to-DC converter to solve the problems associated with conventional 48 VDC converters. A 300 W LLC series resonant converter is utilized for the design and analysis of converter efficiency and losses across various input voltages. The results indicate that the maximum converter efficiency is >92% at full load. MATHCAD is used to analyze the performance of the LLC converter and understand the suitable operating zones for zero-voltage-switching. The LLC converter's efficiency is investigated for multiple input voltage ranges. The LLC converter is designed and developed in MATLAB and the results of the simulation are presented. Trade-offs in the LLC converter's design are also discussed, with the goal of operating the converter in an optimal manner and achieving the maximum possible efficiency.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Performance Comparison Analysis of a High Voltage DC LLC Resonant Converter for Telecom and Datacenter Applications

Darla

Chitra

2023

ECTI-EEC

View full text Add to dashboard Cite

show abstract

“…Indeed, multiple independent power converters can be simultaneously controlled by a single DSP, executing different control algorithms for each converter [14]. These requirements are common in power supplies for computers and telecommunications systems [15]. However the rate at which the control algorithms must be executed is increasing with the trend towards using higher switching frequencies, higher sampling frequencies and multi-sampling techniques [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Specialized Digital Signal Processor for control of multi-rail/multi-phase high switching frequency power converters

Mooney

Halton

Mahdi

2010

2010 Twenty-Fifth Annual IEEE Applied Power Electronics Conference and Exposition (APEC)

View full text Add to dashboard Cite

Abstract-This paper describes a Digital Signal Processor (DSP) whose architecture has been purposely developed for executing power converter control algorithms. It is intended for use in the control of multi-phase or multi-rail switching power converters. The DSP's novel dual multiplier-accumulator datapath allows multiple operations to be executed in a single clock cycle, thus shortening required execution times of power control algorithms compared with standard low-end DSPs. The processor has been designed using the Verilog Hardware Description Language (HDL), implemented on an FPGA development board and tested in a closed-loop system controlling three independent 500 kHz synchronous buck converters.

show abstract

“…1(a), secondary side control designs must pass the DPWM control signals from the secondary side to the primary side [11]. The main drawback with this approach is that the controller is not directly powered up during start-up operation and additional overhead circuitry on the primary side is normally required [12]. For this reason, primary side control ( Fig.…”

mentioning

confidence: 99%

Efficient Bi-Directional Digital Communication Scheme for Isolated Switch Mode Power Converters

Scharrer

Halton

Scanlan

et al. 2012

IEEE Trans. Circuits Syst. I

View full text Add to dashboard Cite

Abstract-An efficient high-speed bi-directional data transmission scheme for isolated AC-DC and DC-DC switched mode power converters is presented. The bi-directional scheme supports fast, efficient and reliable transmission of digitally encoded data across the isolation barrier and enables primary side control, allowing effective start-up and a simple interface to system controllers. Another key feature is that the bi-directional communication is independent of coupler gain and degradation and only the minimum number of couplers is required. The digital interface can also be used to transmit auxiliary signals between both sides. For test purposes, the scheme has been implemented on FPGAs and verified using a custom-built SMPC board.

show abstract

Advanced control circuit for intermediate bus converter

Cited by 13 publications

References 6 publications

Performance Comparison Analysis of a High Voltage DC LLC Resonant Converter for Telecom and Datacenter Applications

Performance Comparison Analysis of a High Voltage DC LLC Resonant Converter for Telecom and Datacenter Applications

Specialized Digital Signal Processor for control of multi-rail/multi-phase high switching frequency power converters

Efficient Bi-Directional Digital Communication Scheme for Isolated Switch Mode Power Converters

Contact Info

Product

Resources

About