scholarly journals DESAIN SARANA PENGISI DAYA PONSEL DI DIREKTORAT POLITEKNIK NEGERI SAMARINDA

2020 ◽  
Vol 5 (2) ◽  
Author(s):  
Dwi Cahyadi ◽  
Lolita Mariska
Keyword(s):  
Power Consumption ◽  
Electric Current ◽  
Mobile Technology ◽  
Human Life ◽  
Battery Charger ◽  
Public Places ◽  
Battery Charging ◽  
Charging Station ◽  
Convenient Means ◽  
Require Power

ABSTRACTEveryday human life is inseparable from the need to communicate. One of the tools commonly used to communicate remotely is mobile. Mobile technology that adopts cutting edge technology is called smartphone. Smartphones are the needs of people who have many benefits, facilitate work, and improve lifestyle. Smartphones can not be used continuously.Smartphones require power to be able to power up and use. A battery charger or battery charger is a device used to recharge energy into the battery by entering an electric current through it. But there are many obstacles that are often experienced when we have to spend the day outside the house, providing limited electricity in public places makes it difficult for us to recharge smartphone bat teries. The need for battery charging continues to increase along with its power consumption. The new innovation of concern is like the means of charging batteries in public places such as the Institute of Education. One of them is the Samarinda State Poly technic. While in public and smartphone batteries are weak, based on convenience aspect, smartphone type and place to charge smartphone battery. Therefore,to design a product that is a convenient means of charging station design and there are various types of chargers that can facilitate visitors to charge the smartphone battery, then made a means Charging Station Directorate of State Polytechnic Samarinda.Keywords: Smartphone, Charger, Institute of Education.

scholarly journals A Solar Powered Electronic Device Charging Station

2019 ◽  
Vol 7 (11) ◽  
pp. 1020-1029
Author(s):  
José Haroldo Da Costa Bentes Júnior ◽  
Rodson Henrique Hatahara da Fonseca ◽  
Livia Da Silva Oliveira ◽  
Marcela Sávia Picanço Pessoa ◽  
David Barbosa de Alencar
Keyword(s):  
Solar Energy ◽  
Electric Current ◽  
Mobile Device ◽  
Electronic Device ◽  
Solar Panels ◽  
Battery Charging ◽  
Charging Station ◽  
Charging Time ◽  
Solar Powered

This paper proposes the development of a mobile device charging station with solar energy as a source of energy to meet the population’s need in a sustainable way. To validate the concept of the article, a prototype was built using photovoltaic solar panels, charge controller and battery and tests were done at different times of the day so that it was possible to verify different quantities, such as voltage and electric current and with this data calculate the power supplied and the battery charging time. As a result, it was observed that the best performance was at noon, with two photovoltaic solar panels, but energy was generated throughout the daytime.

Smart Battery Charging Station for ElectricVehicle Using Half Bridge Power Converter

2018 ◽  
Vol 19 (4) ◽  
Author(s):  
B. R. Ananthapadmanabha ◽  
Rakesh Maurya ◽  
Sabha Raj Arya ◽  
B. Chitti Babu
Keyword(s):  
Power Quality ◽  
Distribution System ◽  
Reactive Power ◽  
Supply Voltage ◽  
Power Converter ◽  
Constant Current ◽  
Battery Charging ◽  
Charging Station ◽  
Simulink Model ◽  
Smart Charging

Abstract This paper presents a concept of smart charging station using bidirectional half bridge converter for an electric vehicle. This battery charging station is useful for charging applications along with harmonics and reactive power compensation in a distribution system. A filter which is adaptive to the supply voltage frequency is used for the estimation of the 50 Hz component of load current. Due to additional features of vehicle charger, associated with the power quality improvement, there will be a drastic reduction in the current drawn from utility to meet the same load demand. The charging station presented in this paper is termed as smart with several function. The proposed smart charger is able to improve power quality of residential loads or other loads, not only during charging/discharging of the vehicle battery, but also in the absence of the vehicle. The Simulink model is developed with MATLAB software and its simulation results are presented. The level of current distortion during charging and and discharging mode is recorded 1.6 % and 2.4 % respectively with unity supply power factor during experiments. The performance of converter is evaluated during charging modes both in constant current (CC) and constant voltage (CV) modes.

scholarly journals Development of Intelligent Drone Battery Charging System Based on Wireless Power Transmission Using Hill Climbing Algorithm

2018 ◽  
Vol 1 (4) ◽  
pp. 44 ◽  
Author(s):  
Ali Rohan ◽  
Mohammed Rabah ◽  
Muhammad Talha ◽  
Sung-Ho Kim
Keyword(s):  
Power Transmission ◽  
Inductive Coupling ◽  
Hill Climbing ◽  
Wireless Power ◽  
Wireless Power Transmission ◽  
Battery Charging ◽  
Charging System ◽  
Charging Station ◽  
Hill Climbing Algorithm ◽  
The Poor

In this work, an advanced drone battery charging system is developed. The system is composed of a drone charging station with multiple power transmitters and a receiver to charge the battery of a drone. A resonance inductive coupling-based wireless power transmission technique is used. With limits of wireless power transmission in inductive coupling, it is necessary that the coupling between a transmitter and receiver be strong for efficient power transmission; however, for a drone, it is normally hard to land it properly on a charging station or a charging device to get maximum coupling for efficient wireless power transmission. Normally, some physical sensors such as ultrasonic sensors and infrared sensors are used to align the transmitter and receiver for proper coupling and wireless power transmission; however, in this system, a novel method based on the hill climbing algorithm is proposed to control the coupling between the transmitter and a receiver without using any physical sensor. The feasibility of the proposed algorithm was checked using MATLAB. A practical test bench was developed for the system and several experiments were conducted under different scenarios. The system is fully automatic and gives 98.8% accuracy (achieved under different test scenarios) for mitigating the poor landing effect. Also, the efficiency η of 85% is achieved for wireless power transmission. The test results show that the proposed drone battery charging system is efficient enough to mitigate the coupling effect caused by the poor landing of the drone, with the possibility to land freely on the charging station without the worry of power transmission loss.

scholarly journals Online Learning And Its Challenges For Parents

2020 ◽  
Author(s):  
Ester Lina Situmorang
Keyword(s):  
Online Learning ◽  
Teaching And Learning ◽  
Human Life ◽  
Learning Activities ◽  
The Internet ◽  
Public Places ◽  
Face To Face ◽  
At Home

Technology has significantly brought changes in all aspects of human life, thechanges that occur require everyone to change from old habits to new habits thatare not used to be done. Changes in general in face-to-face classes began to shift tovirtual classes. Even the elements of education have undergone many changes bothparents, students and teachers. They experience new teaching patterns and ways ofteaching. Learning places are transformed and can be done at home, public places,and so on. Time and place are no longer a barrier to teaching and learning activitiesbecause they can be done online. Online learning is carried out by utilizing existingtechnology through media that uses the internet to carry out teaching and learningprocesses such as cellphones and laptops. This media will support the teaching andlearning process through available applications such as whatsApp, googleclassroom and so on. Learning brings many challenges and obstacles faced byparents in particular. Of course this is a challenge in itself for parents in monitoringchildren's learning activities, especially in the application of technology as alearning medium for children.

Green Semicondoctor Design Techniques and Challanges

2011 ◽  
pp. 404-411
Author(s):  
Somesh Rajain ◽  
Chetan Shingala ◽  
Ekata Mehul
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Power Management ◽  
Human Life ◽  
Semiconductor Industry ◽  
Low Power Design ◽  
Clock Gating ◽  
Consumer Device ◽  
Carbon Dioxide Co2 ◽  
Design Techniques

The large emission of Carbon dioxide (CO2) is not only affecting our ecology but also affecting human life. In schools, offices, factory and crowded railway/bus stations i.e crowded places with insufficient ventilations CO2 affects human life most. In a closed environment like school, If CO2 level starts raising above 700 parts per million (ppm) people will feel objectionable body odors and as it increase further people will feel very uncomfortable, dizzy and have headache etc. Our goal is to reduce CO2 emission and lower global warming. In Semiconductor Industry as the digital technology grows, the functionality of our electronics devices (For example: - Mobile phone, PC’s, home appliances etc) is constantly improves and mean while the demand for electronic devices to be more environment friendly is increasing. So we have to design systems with Low power consumption to curtail down green house gas emission as well as low power design are also a requirement of today’s market. The usage of mobile device in all kinds of applications is increasing day by day. These applications and corresponding devices also have their power requirements. The demand for mobile consumer device has made the power management the number one consideration in today‘s system design. To increase battery life, system chip designer needs to adopt an aggressive power management technique which includes multi voltage Design Island, power gating, dynamic voltage, frequency scaling, clock gating etc in the system. Adding all these greatly complicates the verification for the chip. Normally the designer neglects the implementation of power saving techniques due to the tradeoff between power reduction and verification costs. The costs become more important in terms of business, which leads to more power consumption. Those details can still be implemented provided we use right kind of tools & techniques that are also combined with design experience. In this chapter the focus is to firstly describe low power design techniques, its verification challenges and its solutions followed by the case study. It also guides for the selection of programmable device & RTL Core design criteria. To make green electronics devices we have to design system with low power design techniques.

The Research and Design of Intelligent Battery Charger for Electric Vehicle

2013 ◽  
Vol 454 ◽  
pp. 15-18
Author(s):  
Ying Zhao ◽  
En Zhen Hou ◽  
Xu Fang
Keyword(s):  
Electric Vehicle ◽  
Electric Vehicles ◽  
Battery Management ◽  
Battery Charger ◽  
Main Concept ◽  
Battery Charging ◽  
Charging System ◽  
Battery Management Systems ◽  
Working Principle ◽  
Research And Design

Battery charging is the most substantial issue in battery management systems, and the intelligent charger can provide stable and reliable energy conversion to electric vehicles. So the research of high power intelligent battery charger becomes very important. This paper introduces the main concept of battery charging of an electric vehicle, and studies the working principle and hardware scheme of an intelligent charging system, and researches the material performance. And based on research results, we will propose desirable characteristics of charger for public use.

scholarly journals Colloidal Quantum Dots for Low-Power-Consumption Semiconductor Gas Sensors

Proceedings ◽  
2019 ◽  
Vol 26 (1) ◽  
pp. 22
Author(s):  
Liu ◽  
Li ◽  
Gao ◽  
Tang
Keyword(s):  
Quantum Dots ◽  
Power Consumption ◽  
Low Power ◽  
Gas Sensors ◽  
Human Life ◽  
Colloidal Quantum Dots ◽  
Low Power Consumption ◽  
Semiconductor Gas Sensors

Gas sensors are becoming increasingly important for the safety and quality of human life.

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