Load-Independent Current Control Technique of a Single-Inductor Multiple-Output Switching DC–DC converter

Moon, Young‐Jin; Roh, Yong-Seong; Gong, Jung-Chul; Yoo, Changsik

doi:10.1109/tcsii.2011.2173969

Cited by 36 publications

(16 citation statements)

References 6 publications

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“…In this manner, the main control loop of the converter can decide whether to increase or decrease the energy in the inductor to regulate the output voltage. Therefore, the error information can be provided to control the loop using the proposed SCC without adopting additional control variables, in contrast to [2]- [4].…”

Section: Self-aligned Comparator Controlmentioning

confidence: 99%

A 0.791 mm$^{2}$ On-Chip Self-Aligned Comparator Controller for Boost DC-DC Converter Using Switching Noise Robust Charge-Pump

Kong

Hong

Cho

2014

IEEE J. Solid-State Circuits

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Herein we propose a new PWM controller for a DC-DC converter with a Self-aligned Comparator Control (SCC), the purpose of which is to overcome sub-harmonic switching and hysteretic characteristics that are problematic in conventional comparator control schemes. In the proposed scheme, the condition of the output voltage is converted to the form of a phase difference through the SCC block. The main control loop of the converter regulates the inductor current which is built up to an optimum value by using this phase difference. In addition to the SCC, the proposed PWM controller is fully integrated on-chip without off-chip components to decrease the size and cost of the DC-DC converter using a new Switching Noise Robust Charge-pump (SNRC). A boost DC-DC converter with the proposed SCC and SNRC was designed and fabricated ina commercial 0.35 m BCDMOS process with total controller area of 0.791 mm 2 . A maximum efficiency of 90% was achieved at a total output power of 480 mW with a switching frequency of 926 kHz when the input and the output voltages were 3.7 V and 8 V, respectively. Over 85% efficiency was maintained over a wide range of output load current from 40 mA to 300 mA.

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Section: Self-aligned Comparator Controlmentioning

confidence: 99%

A 0.791 mm$^{2}$ On-Chip Self-Aligned Comparator Controller for Boost DC-DC Converter Using Switching Noise Robust Charge-Pump

Kong

Hong

Cho

2014

IEEE J. Solid-State Circuits

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“…NITPCs are cost-effective and are compact due to the reduced components. Their control strategy are simple as NITPCs are derived from basic converters [2]- [3]. However, for the same reason, the voltage gain of NITPC is limited.…”

Section: Introductionmentioning

confidence: 99%

Non-Isolated Single-Inductor DC/DC Converter With Fully Reconfigurable Structure for Renewable Energy Applications

Tian

Qin

2018

IEEE Trans. Circuits Syst. II

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A novel non-isolated three-port converter (NITPC) is introduced in this brief. The purpose of this topology is to integrate a regenerative load such as DC bus and motor with dynamic braking, instead of the widely reported consuming load, with a photovoltaic (PV)-battery system. Conventional methods require either a separate dc-dc converter to process the reversible power flow or employing an isolated three-port converter (TPC) which allows bi-directional power flow between any two ports. However, these methods require many switches which increases the converter size and control complexity. This brief hence presents a compact but fully functional design by combining and integrating basic converters to form a simplified singleinductor converter structure while keeping minimum amount of switches. The resultant converter is fully reconfigurable that all possible power flow combinations among the sources and load are achieved through different switching patterns, while preserving the single power processing feature of TPC. This brief presents a design example of the proposed NITPC for a PV-battery powered DC microgrid. Detailed circuitry analysis, operation principles of both DC grid-connected and islanded modes, and experimental results of different modes in steady state and mode transitions are presented.

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“…The comparison between isolated, partly isolated and non-isolated is given in [2]. Recently Non-isolated three port converters are widely used in many renewable energy applications which are used to integrate energy storage and load owing to the fact of requirement of low voltage regulation ratio [3]. Non-isolated converters are used for multiple input and multiple output configurations and is cheaper and very compact in size compared to isolated converters because of its reduced size.…”

Section: Introductionmentioning

confidence: 99%

Optimization of energy from photovoltaic cell using three port converter for home appliances

M¹,

Jayanthi²,

Priyadharshni³

et al. 2018

IJET

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The main objective of this paper is to propose the significant usage of photovoltaic modules in household applications. This paper describes a compact but fully functional design by integrating basic converters to form a simplified single inductor converter structure while keeping minimum number of switches. The resultant converter is fully reconfigurable that all possible power flow combinations among the sources and load are achieved through different switching patterns. Single inductor converter module is used to simplify the structure while reducing the number of switches. This is fully configurable enabling all possible power flow combinations. The experimental behavior of this module from morning till evening is observed and the wave pattern of the subjective proposed results are recorded and verified.

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Load-Independent Current Control Technique of a Single-Inductor Multiple-Output Switching DC–DC converter

Cited by 36 publications

References 6 publications

A 0.791 mm$^{2}$ On-Chip Self-Aligned Comparator Controller for Boost DC-DC Converter Using Switching Noise Robust Charge-Pump

A 0.791 mm$^{2}$ On-Chip Self-Aligned Comparator Controller for Boost DC-DC Converter Using Switching Noise Robust Charge-Pump

Non-Isolated Single-Inductor DC/DC Converter With Fully Reconfigurable Structure for Renewable Energy Applications

Optimization of energy from photovoltaic cell using three port converter for home appliances

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