Li-Ion Battery Charging with a Buck-Boost DC–DC Converter for a Portable Device Power Management

Khadiri, Karim El; Akhmal, Hicham; Qjidaa, Hassan

doi:10.1166/jolpe.2017.1479

Cited by 13 publications

(11 citation statements)

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“…To this day, many Li-Ion battery charger architectures have been published in the literature using CMOS technology [2][3][4][5][6][7][8][9][10][11][12][13][14]. As already stated, with these high performances, li-ion battery chargers became the most used for mobile applications.…”

Section: Introductionmentioning

confidence: 99%

“…However, this architecture suffers from low power efficiency due to the time lag between the power supply and the battery voltage V BAT . Another architecture is proposed in [7,11], it is based on the DC/DC converter. This kind of architecture is characterized by high power efficiency; however, it is not suitable for single chip integration because of its low accuracy and big area.…”

Section: Introductionmentioning

confidence: 99%

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A new Li-ion battery charger with charge mode selection based on 0.18 um CMOS for phone applications

Farah

Alaoui

Elboutahiri

et al. 2021

IJECE

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A new architecture of Li-Ion battery charger with charge mode selection is presented in this work. To ensure high efficiency, good accuracy and complete protection mode, we propose an architecture based on variable current source, temperature detector and power control. To avoid the risk of damage, the Li- Ion batteries charging process must change between three modes of current (trickle current (TC), constant current (CC), and constant voltage (CV)) in order to charge the battery with degrading current. However, the interest of this study is to develop a fast battery charger with high accuracy that is able to switch between charging modes without reducing its power efficiency, and to guarantee a complete protection mode. The proposed charger circuit is designed to control the charging process in three modes using the charging mode selection. The obtained results show that the Li-ion batteries can be successfully charged in a short time without reducing their efficiency. The proposed charger is implemented in 180 nm CMOS technology with a maximum charging current equal to 1 A and a maximum battery voltage equal to 4.22 V, (with input range 2.7-4.5 V). The chip area is 1.5 mm2 and the power efficiency is 90.09 %.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A new Li-ion battery charger with charge mode selection based on 0.18 um CMOS for phone applications

Farah

Alaoui

Elboutahiri

et al. 2021

IJECE

Self Cite

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show abstract

“…We used a ramp generator which is already published by our team in [6]. The same circuit is implemented and adapted with high voltage in order to provide a symmetry ramp signal.…”

Section: 2 Compensation Circuit and Ramp Generatormentioning

confidence: 99%

“…But this charging circuit has a major disadvantage which is low power efficiency caused by the time lag between power supply and battery voltage V BAT . On the other hand, the charging circuits in [5][6][7][8][9][10] such as switching capacitors, switching mode power supply or DC-DC converter are typified by high efficiency. However, these structures are not appropriate for integration in a single chip and also, they have low accuracy.…”

Section: Introductionmentioning

confidence: 99%

High Efficiency Buck-Boost Converter with Three Modes Selection for HV Applications using 0.18 μm Technology

et al. 2020

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In this paper, we aim to make a detailed study on the evaluation and the characteristics of the non-inverting buck–boost converter. In order to improve the behaviour of the buck-boost converter for the three operating modes, we propose an architecture based on peak current-control. Using a three modes selection circuit and a soft start circuit, this converter is able to expand the power conversion efficiency and reduce inrush current at the feedback loop. The proposed converter is designed to operate with a variable output voltage. In addition, we use LDMOS transistors with low on-resistance, which are adequate for HV applications. The obtained results show that the proposed buck-boost converter perform perfectly compared to others architecture and it is successfully implemented using 0.18 μm CMOS TSMC technology, with an output voltage regulated to 12V and input voltage range of 4-20 V. The power conversion efficiency for the three operating modes buck, boost and buck-boost are 97.6%, 96.3% and 95.5% respectively at load current of 4A.

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“…The lower efficiency is a great problem for it, so the utilization of the Power-MOS as a variable current source is a solution of its low efficiency and also to minimize it dropout [13]. The switching based requires an advanced circuit design to realize a high efficiency, it gives a wide range of the input/output voltage [14]. Further more the switching based is costing a lot of drawbacks, like a worse noise repudiation as of the ripple at a switching rate, and rise power consumption [15].…”

Section: Introductionmentioning

confidence: 99%

A high efficiency and high speed charge of Li-Ion battery charger interface using switching-based technique in 180 nm CMOS technology

Alaoui

Farah

Khadiri

et al. 2021

IJPEDS

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In this work, the design and analysis of new Li-Ion battery charger interface using the switching-based technique is proposed for high efficiency, high speed charge and low area. The high efficiency, the lower size area and the fast charge are the more important norms of the proposed Li-Ion battery charger interface. The battery charging is completed passes to each charging mode: The first mode is the trickle charge mode (TC), the second mode is the constant current mode (CC) and the last mode is the constant voltage mode (CV), in thirty three minutes. The new Li-Ion battery charger interface is designed, simulated and layouted in Cadence software using TSCM 180 nm CMOS technology. With an input voltage VIN = 4.5 V, the output battery voltage (VBAT) may range from 2.7 V to 4.2 V and the maximum charging battery current (IBAT) is 1.7 A. The peak efficiency reaches 97% and the total area is only 0.03mm2 .

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Li-Ion Battery Charging with a Buck-Boost DC–DC Converter for a Portable Device Power Management

Cited by 13 publications

References 0 publications

A new Li-ion battery charger with charge mode selection based on 0.18 um CMOS for phone applications

A new Li-ion battery charger with charge mode selection based on 0.18 um CMOS for phone applications

High Efficiency Buck-Boost Converter with Three Modes Selection for HV Applications using 0.18 μm Technology

A high efficiency and high speed charge of Li-Ion battery charger interface using switching-based technique in 180 nm CMOS technology

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