scholarly journals Power Efficient Battery Charger by Using Constant Current/Constant Voltage Controller

2012 ◽  
Vol 03 (02) ◽  
pp. 180-186 ◽  
Author(s):  
Falah Al Hassan
Keyword(s):  
Constant Current ◽  
Constant Voltage ◽  
Battery Charger ◽  
Power Efficient ◽  
Voltage Controller

scholarly journals Design and Implementation of Buck Converter for Fast Charging with Fuzzy Logic

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Indhana Sudiharto ◽  
Moch. Igam Rahadyan ◽  
Ony Asrarul Qudsi
Keyword(s):  
Output Voltage ◽  
Buck Converter ◽  
Constant Current ◽  
Constant Voltage ◽  
Battery Charger ◽  
Output Current ◽  
Charging Rate ◽  
Battery Capacity ◽  
Fast Charging ◽  
Charging Current

This research presents a battery charger design that can charge faster than using a PWM type solar charge controller (SCC). SCC is often operated when the battery capacity is 80% so that the charging current that can be provided is only 10% to 20% of the battery capacity. The battery charging method applied in this study uses the principle of fast charging by adjusting the value of the current and the output voltage value of the buck converter. Fast charging has its own characteristic, obviously, the charging rate that is greater than the usual charging method, which is up to 1C of the battery capacity. The principle of fast charging in this study uses the constant current / constant voltage method. This converter is designed with the ability to produce current by the charging rate of 1C from a 12Ah battery capacity of 12 A and an output voltage of 16.8 V. To ensure that the output of the converter matches the setpoint, the duty cycle value is adjusted using fuzzy control. Based on the results obtained from the simulation, the control of this study obtained an output current 12  Amperes with error ripple current around 8.3%. The SOC on this battery increased by 75.74% in 45 minutes.

scholarly journals A Smart Two-Stage Charging Strategy Implemented on a PV Module Array with a Simple MPPT for LiFePO4 Batteries

2018 ◽  
Author(s):  
Pi-Yun Chen ◽  
Kuei-Hsiang Chao ◽  
Yu-Sheng Tsai
Keyword(s):  
High Speed ◽  
Current Mode ◽  
Buck Converter ◽  
Constant Current ◽  
Storage Device ◽  
Photovoltaic Module ◽  
Constant Voltage ◽  
Battery Charger ◽  
Two Stage ◽  
Charging Strategy

This paper aims to present a smart high speed battery charger, powered by a photovoltaic module array, for a LiFePO4 battery as a solar energy storage device. With a battery charging strategy, the presented battery charger involves a Buck converter as the core equipped with a simple maximum power point (MPP) tracker. Considering complexity reduction and easy hardware implementation, a constant voltage MPP tracking approach is adopted such that the maximum amount of output power can be delivered to the load in response to an arbitrary change in the solar radiation. A smart two-stage charging strategy, with a constant current mode followed by a constant voltage mode, is employed in such a way that the battery charge process can be accelerated largely, while the damage caused by overcharging can be prevented. In the end, the performance of this proposal is validated experimentally.

scholarly journals A High Efficiency Li-Ion Battery LDO-Based Charger for Portable Application

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Youssef Ziadi ◽  
Hassan Qjidaa
Keyword(s):  
High Efficiency ◽  
Cmos Technology ◽  
High Accuracy ◽  
Constant Current ◽  
Li Ion Battery ◽  
Constant Voltage ◽  
Battery Charger ◽  
Charging Current ◽  
Li Ion ◽  
Simulation Results

This paper presents a high efficiency Li-ion battery LDO-based charger IC which adopted a three-mode control: trickle constant current, fast constant current, and constant voltage modes. The criteria of the proposed Li-ion battery charger, including high accuracy, high efficiency, and low size area, are of high importance. The simulation results provide the trickle current of 116 mA, maximum charging current of 448 mA, and charging voltage of 4.21 V at the power supply of 4.8–5 V, using 0.18 μm CMOS technology.

scholarly journals Desain dan Simulasi Battery Charger Metode CC-CV (Constant Current-Constant Voltage) dengan Kontrol Logika Fuzzy Menggunakan MATLAB

CYCLOTRON ◽  
2021 ◽  
Vol 4 (2) ◽  
Author(s):  
Faris Rahmatullah
Keyword(s):  
Duty Cycle ◽  
State Of Charge ◽  
Constant Current ◽  
Constant Voltage ◽  
Battery Charger

Baterai merupakan salah satu sistem penyimpanan energi listrik. Namun, dalam pengisiannya rentan mengalami kerusakan. Kerusakan pada baterai sering terjadi ketika dilakukan pengisian daya yang berlebih (over charging). Waktu pengisian baterai juga menjadi faktor yang perlu diperhatikan dalam pengisian daya. Oleh karena itu, pengisian daya baterai yang efisien menjadi penting dan sangat perlu dilakukan untuk menghindari terjadinya kerusakan. Sistem charging pada baterai disini dengan metode constant current-constant voltage (CC-CV) menggunakan dua buah kontrol logika fuzzy. Metode charging CC-CV digunakan untuk memaksimalkan daya charging dengan waktu yang singkat serta mencegah terjadinya over charging pada baterai. Kontrol logika fuzzy pertama dan kedua digunakan untuk mengatur duty cycle agar arus konstan dan tegangan konstan. Dari hasil simulasi menggunakan metode CC-CV ketika kondisi CC diperoleh nilai arus sebesar 3.3A pada duty cycle 42.6% dan terjadi transisi menuju kondisi CV ketika state of charge (SoC) 80.02% dengan nilai tegangan sebesar 14.4 V pada duty cycle 41.2%. Pengisian daya dan peningkatan SoC pada metode CC-CV lebih cepat 0.15 detik terhadap metode CC dan 0.25 detik terhadap metode CV.

scholarly journals Current Mode Control of a Series LC Converter Supporting Constant-Current Constant-Voltage (CCCV)

2019 ◽  
Author(s):  
Michael Heidinger ◽  
Qihao Xia ◽  
Christoph Simon ◽  
Fabian Denk ◽  
Santiago Eizaguirre ◽  
...  
Keyword(s):  
Control Algorithm ◽  
Current Mode ◽  
Open Loop ◽  
Power Supplies ◽  
Constant Current ◽  
Loop Current ◽  
Constant Voltage ◽  
Large Signal ◽  
Current Mode Control ◽  
Voltage Controller

This paper presents a control algorithm for soft-switching series LC converters. The conventional voltage-to-voltage controller is split into a master and a slave controller. The master controller implements constant-current-constant-voltage (CCCV) control, required for demanding applications, i.e. lithium battery charging or laboratory power supplies. It defines the set-current for the open-loop current slave controller, which generates the PWM parameters. The power supply achieves fast large-signal responses, e.g. from 5 V to 24 V, where 95% of the target value is reached in less than 400 µs. The design is evaluated extensively in simulation and on a prototype. A consensus between simulation and measurement is achieved.

scholarly journals Current Mode Control of a Series LC Converter Supporting Constant Current, Constant Voltage (CCCV)

Energies ◽  
2019 ◽  
Vol 12 (14) ◽  
pp. 2793
Author(s):  
Michael Heidinger ◽  
Qihao Xia ◽  
Christoph Simon ◽  
Fabian Denk ◽  
Santiago Eizaguirre ◽  
...  
Keyword(s):  
Pulse Width Modulation ◽  
Current Mode ◽  
Open Loop ◽  
Power Supplies ◽  
Constant Current ◽  
Loop Current ◽  
Constant Voltage ◽  
Large Signal ◽  
Current Mode Control ◽  
Voltage Controller

This paper introduces a control algorithm for soft-switching series LC converters. The conventional voltage-to-voltage controller is split into a master and a slave controller. The master controller implements constant current, constant voltage (CCCV) control, required for demanding applications, for example, lithium battery charging or laboratory power supplies. It defines the set-current for the open-loop current slave controller, which generates the pulse width modulation (PWM) parameters. The power supply achieves fast large-signal responses, e.g., from 5 V to 24 V , where 95% of the target value is reached in less than 400 s . The design is evaluated extensively in simulation and on a prototype. A match between simulation and measurement is achieved.

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