This document discusses wireless charging, including its types, design, applications, advantages, and limitations. There are three main types of wireless charging: resonance charging, which uses coils tuned to the same frequency; inductive charging, which works through electromagnetic induction; and radio charging, which transmits power via radio waves. The basic design of a wireless charging system consists of a transmitter that generates power, antennas to transmit it, and receivers to charge devices. Wireless charging has applications for powering devices like mobile phones, laptops, and electric vehicles. Its advantages include convenience and reducing electronic waste, though efficiency and power loss remain challenges.
A presentation on wireless charging.
Inductive charging (also known as wireless charging or cordless charging) uses an electromagnetic field to transfer energy between two objects through electromagnetic induction. This is usually done with a charging station. Energy is sent through an inductive coupling to an electrical device, which can then use that energy to charge batteries or run the device.
Induction chargers use an induction coil to create an alternating electromagnetic field from within a charging base, and a second induction coil in the portable device takes power from the electromagnetic field and converts it back into electric current to charge the battery. The two induction coils in proximity combine to form an electrical transformer Greater distances between sender and receiver coils can be achieved when the inductive charging system uses resonant inductive coupling.
Recent improvements to this resonant system include using a movable transmission coil (i.e. mounted on an elevating platform or arm) and the use of other materials for the receiver coil made of silver plated copper or sometimes aluminium to minimize weight and decrease resistance due to the skin effect.
Wireless charging is making inroads in the healthcare, automotive and manufacturing industries because it offers the promise of increased mobility and advances that could allow tiny internet of things (IoT) devices to get power many feet away from a charger.
A presentation on wireless charging.
Inductive charging (also known as wireless charging or cordless charging) uses an electromagnetic field to transfer energy between two objects through electromagnetic induction. This is usually done with a charging station. Energy is sent through an inductive coupling to an electrical device, which can then use that energy to charge batteries or run the device.
Induction chargers use an induction coil to create an alternating electromagnetic field from within a charging base, and a second induction coil in the portable device takes power from the electromagnetic field and converts it back into electric current to charge the battery. The two induction coils in proximity combine to form an electrical transformer Greater distances between sender and receiver coils can be achieved when the inductive charging system uses resonant inductive coupling.
Recent improvements to this resonant system include using a movable transmission coil (i.e. mounted on an elevating platform or arm) and the use of other materials for the receiver coil made of silver plated copper or sometimes aluminium to minimize weight and decrease resistance due to the skin effect.
Wireless charging is making inroads in the healthcare, automotive and manufacturing industries because it offers the promise of increased mobility and advances that could allow tiny internet of things (IoT) devices to get power many feet away from a charger.
Hi there,
Many of us forgot to charge their mobile phones and if there any powercut we can't charge the mobiles right ! . These problem is solved here... For more details download this ppt Now.
In wireless charging the current coming from the wall power outlet moves through the wire in the wireless charger, creating a magnetic field. The magnetic field creates a current in the coil inside the device. This coil is connected to the battery and the current charges the battery. The two induction coils in proximity combine to form an electrical transformer.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
Hi there,
Many of us forgot to charge their mobile phones and if there any powercut we can't charge the mobiles right ! . These problem is solved here... For more details download this ppt Now.
In wireless charging the current coming from the wall power outlet moves through the wire in the wireless charger, creating a magnetic field. The magnetic field creates a current in the coil inside the device. This coil is connected to the battery and the current charges the battery. The two induction coils in proximity combine to form an electrical transformer.
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
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A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Search and Society: Reimagining Information Access for Radical FuturesBhaskar Mitra
The field of Information retrieval (IR) is currently undergoing a transformative shift, at least partly due to the emerging applications of generative AI to information access. In this talk, we will deliberate on the sociotechnical implications of generative AI for information access. We will argue that there is both a critical necessity and an exciting opportunity for the IR community to re-center our research agendas on societal needs while dismantling the artificial separation between the work on fairness, accountability, transparency, and ethics in IR and the rest of IR research. Instead of adopting a reactionary strategy of trying to mitigate potential social harms from emerging technologies, the community should aim to proactively set the research agenda for the kinds of systems we should build inspired by diverse explicitly stated sociotechnical imaginaries. The sociotechnical imaginaries that underpin the design and development of information access technologies needs to be explicitly articulated, and we need to develop theories of change in context of these diverse perspectives. Our guiding future imaginaries must be informed by other academic fields, such as democratic theory and critical theory, and should be co-developed with social science scholars, legal scholars, civil rights and social justice activists, and artists, among others.
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
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"Impact of front-end architecture on development cost", Viktor TurskyiFwdays
I have heard many times that architecture is not important for the front-end. Also, many times I have seen how developers implement features on the front-end just following the standard rules for a framework and think that this is enough to successfully launch the project, and then the project fails. How to prevent this and what approach to choose? I have launched dozens of complex projects and during the talk we will analyze which approaches have worked for me and which have not.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
3. Contents
What is Wireless Charging?
Types of Charging
Design Overview
Applications
Advantages of Wireless Charging
Limitations
Conclusion
References
4. What is Wireless Charging?
Wireless charging is one of the several
methods of charging batteries without the use
of cable or device specific AC adaptors.
Wireless charging can be used for a wide
variety of devices including cell phones laptop
computers and MP3 players as well as larger
objects such as robots and electric cars.
5. Methods of Charging
There are three types of wireless charging :-
Resonance Charging
Inductive Charging
Radio Charging
6. Resonance Charging
It uses phenomenon of “RESONANCE”, that
causes an object to vibrate when energy of
certain frequency is applied.
Two copper coils are used one attached to
transmitter & another to receiver.
Both coils are tuned to same electromagnetic
frequency.
These coils when placed close to one another
power is transferred.
7. Examples:-
Electric cars
Robots
Vacuum Cleaners
Laptop computers &
Other items that require large amounts of power.
8. Inductive Charging
Inductive charging is one kind of short distance
wireless charging.
This method works on the principle of
“ELECTROMAGNETIC INDUCTION” where the
charger device will create an E.M field with
alternating polarity using a coil of insulated
copper wire & a similar coil will be placed inside
the mobile device which will convert E.M field
back to electric current there by charging the
battery.
9. Examples:-
MP3 players.
Personal Digital Assistants (PDA’s).
Electric toothbrushes.
Waterproof Vibrating Razors. &
Other mid-sized items
10. Radio Charging
signals This method is on the basis that Radio Waves are widely in
use to transmit and receive cellular telephone, television, radio
and Wi-Fi.
A Radio wave once transmitted, propagates in all
directions until it reaches an antenna tuned to
proper frequency to receive it.
A transmitter plugged in to a socket, generates
radio waves, when the receiver attached to the
device is set to the same frequency as the
transmitter, it will charge the device’s battery.
11. Examples:-
Watches.
Hearing aids.
Medical implants.
Cell phones.
Wireless keyboards &
Other charging devices with small batteries and low
power requirements.
12. Design Overview
The basic design mainly consists of three sole
parts:
Transmitter
Antenna
Receiver
13. Transmitter
A power transmitter acts as a power source.
It will transmit power to the receiver side.
The transmission signals are mainly in between
the RF/Microwave range. (Typically 900Mhz)
14. Antennas
It plays an important role of mediator between transmitter &
receiver.
Important specifications:
1.Impedance of antenna.
2.Gain of antenna.
Impedance of antenna should match o/p impedance of power
transmitter and i/p impedance of rectifier ckt.
Higher gain yields better result of design.
15. Receiver
The receivers main purpose is to charge an AAA battery.
For charging AC signal (microwave signal with a typical value
of 900 MHz) is taken and fed to a rectifier ckt to get a D.C
signal.
A full-wave rectifier ckt is used because of its simplicity and
efficiency in converting A.C signal.
At the o/p of the rectifier, the signal is not a D.C signal yet.
Thus by adding a capacitor and a resistor a smooth o/p can be
achieved.
18. Benefits
Provides consumers with freedom and
convenience.
The way the technology works is simple.
Simultaneous charging of multiple devices.
The plastic, packaging & electronic waste
associated with charges is greatly reduced.
Since it is wireless it is economic.
19. Limitations
applicable for only small distance
For the larger devices like electric car , charging stations may
be limited
Efficiency and power loss are the major problems
20. Conclusions:
Research in to using wireless technology to
supply to terminals is finally beginning to be
realized. The technology provides a wide range
of other obvious benefits, including better
portability, lower cost and best of all the end of
having to guess which charger go what
gadgets. Charging will one day become a
simple matter of dropping devices into the
nearest charging pad.
21. References
Espejel.J.D,”RF to DC power generation", University of
Maryland, December 2003.
http://drum.umd.edu:8003/dspace/handle/1903/173
Electronics today magazine, June 2008th
issue, page no
63-66.
www.Howdostuffwork.com
www.WhatIs.com