New Digital-Controlled Technique for Battery Charger With Constant Current and Voltage Control Without Current Feedback

2012 ◽  
Vol 59 (3) ◽  
pp. 1545-1553 ◽  
Author(s):  
Bo-Yuan Chen ◽  
Yen-Shin Lai
Keyword(s):  
Voltage Control ◽  
Constant Current ◽  
Battery Charger ◽  
Current Feedback

scholarly journals Battery Charging Application with Thermoelectric Generators as Energy Harvesters

2019 ◽  
Vol 3 (1) ◽  
pp. 248
Author(s):  
Zakariya M. Dalala ◽  
Zaid S. Hamdan ◽  
Hussein Al-Taani ◽  
Mohammad Al-Addous ◽  
Aiman Albatayneh
Keyword(s):  
Control Algorithm ◽  
Thermoelectric Generator ◽  
Boost Converter ◽  
Constant Current ◽  
Battery Charger ◽  
Power Matching ◽  
Point Tracking ◽  
Battery Chargers ◽  
Charging Current ◽  
Power Point

This paper discusses and presents the implementation of a boost converter as power electronic interface to be used with the thermoelectric generator (TEG). The common application for such system is the battery charger. The boundary conditions for battery chargers include the charging current and battery voltage limits which have to be respected throughout the charging process, while the maximization of the power generated from the TEG is a global target that is desired to be met as much as possible. Coordinated control algorithm that collectively combines these constraints is the main focus of this work. Novel global control algorithm is proposed and verified in this paper with detailed analysis that shows the effectiveness of the proposed algorithm. Dual control loops for the voltage and current of the boost converter will be designed and analyzed to satisfy the source and load demands. Maximum power point tracking (MPPT) mode, power matching mode and voltage stabilization mode will be integrated in the control algorithm of the battery charger. This paper puts a schematic design for a system that harvests energy from a thermoelectric generator bank of a TEG1-12611-6.0 TEG modules in order to charge a battery bank of Samsung ICR18650 Batteries using constant current (CC) and constant voltage (CV) charging profiles.

Remote Monitoring Technologies of Performances of Battery Charger in Digitalized Transformer Substation

2013 ◽  
Vol 662 ◽  
pp. 731-735
Author(s):  
Pei Ying Li ◽  
Yu Tian Pan ◽  
Yan Qiang Ma
Keyword(s):  
Remote Sensing ◽  
Power System ◽  
Remote Monitoring ◽  
Constant Current ◽  
Battery Charger ◽  
Monitoring Technology ◽  
Dc Power ◽  
Transformer Substation ◽  
The Stability ◽  
Monitoring Technologies

In the DC power system of the unwatched transformer substation, the battery charger is one of the key devices. The stability of its performances directly affect the stability of DC power system. In the paper, using the computer technologies and the real-time Ethernet technology to communicate with the battery charger monitor to achieve remote monitoring technology of the performances of the battery charger. It can not only remote monitor the operations and fault states of the battery charger on line, but also remote sensing the ripple factor and the stabilized voltage precision when the battery charger is under the states of the floating charge and the constant voltage equalizing charge, at the same time remote sensing the stabilized current precisions when the battery charger is under the stage of constant current equalizing charge, and the characteristics of equalizing current when the battery charger is in operation. So the remote monitoring technology of the performances of the battery charger is very important in the transformer substation.

scholarly journals Li-Po Battery Charger Based on the Constant Current/Voltage Parallel Resonant Converter Operating in ZVS

Energies ◽  
2018 ◽  
Vol 11 (4) ◽  
pp. 951
Author(s):  
Alberto Pernía ◽  
Juan Díaz-González ◽  
Miguel Prieto ◽  
José Fernández-Rubiera ◽  
Manés Fernández-Cabanas ◽  
...  
Keyword(s):  
Constant Current ◽  
Resonant Converter ◽  
Battery Charger ◽  
Current Voltage ◽  
Li Po

THE DESIGN OF A LI-ION BATTERY CHARGER BASED ON MULTIMODE LDO TECHNOLOGY

2009 ◽  
Vol 18 (05) ◽  
pp. 947-963 ◽  
Author(s):  
CHIA-CHUN TSAI ◽  
CHIN-YEN LIN ◽  
YUH-SHYAN HWANG ◽  
TRONG-YEN LEE
Keyword(s):  
Power Efficiency ◽  
Input Voltage ◽  
Constant Current ◽  
Voltage Regulator ◽  
Cmos Process ◽  
Li Ion Battery ◽  
Battery Charger ◽  
Charging Current ◽  
Li Ion ◽  
A Current

In this paper, we design a CMOS Li-Ion battery charger using the multimode low dropout (LDO) voltage regulator associated with a current sense to supply trickle current, constant current, and constant voltage for charging the battery in order. The protections from over charging and discharging are also considered by monitoring the charging current, reverse voltage, and battery temperature. The whole charger has been verified by HSPICE with TSMC 0.35 μm 2P4M CMOS process. The charger provides the trickle current of 150 mA, maximum charging current of 312 mA, and charging voltage of 4.2 V at the input voltage of 4.5 V. The power efficiency of 72.3% is acceptable under the power consumption of 1.28 W. The chip occupies an area of 1.78 mm × 1.77 mm including 2955 transistors.

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