1) RC circuits involve resistors and capacitors. Charging and discharging of capacitors in such circuits does not occur instantaneously due to the presence of resistors.
2) The time constant, τ, of an RC circuit is equal to RC. It represents the time required for a capacitor's charge or voltage to change by approximately 63.2% of its maximum or initial value.
3) In the long run, the current through a charged capacitor becomes zero as it reaches its maximum charge, acting as an open circuit. For a discharging capacitor, the current becomes zero as its charge reduces to zero.
The second edition of this well-received text continues to provide a coherent and comprehensive coverage of Pulse and Digital Circuits, suitable as a textbook for use by undergraduate students pursuing courses in Electrical and Electronics Engineering, Electronics and Communication Engineering, Electronics and Instrumentation Engineering, and Telecommunication Engineering. It presents clear explanations of the operation and analysis of semiconductor pulse circuits. Practical pulse circuit design methods are investigated in detail.
The book provides numerous fully worked-out, laboratory-tested examples to give students a solid grounding in the related design concepts. It includes a number of classroom-tested problems to encourage students to apply theory in a logical fashion. Review questions, fill in the blanks, and multiple choice questions offer the students the opportunity to test their understanding of the text material.
This text will be also appropriate for self-study by AMIE and IETE students.
Chopper basically uses a Thyristor for high power applications. The process of turning off a conducting Thyristor is known as commutation. Here Thyristor is turned off by a current pulse that is why it is called a Current Commutated Chopper.
The second edition of this well-received text continues to provide a coherent and comprehensive coverage of Pulse and Digital Circuits, suitable as a textbook for use by undergraduate students pursuing courses in Electrical and Electronics Engineering, Electronics and Communication Engineering, Electronics and Instrumentation Engineering, and Telecommunication Engineering. It presents clear explanations of the operation and analysis of semiconductor pulse circuits. Practical pulse circuit design methods are investigated in detail.
The book provides numerous fully worked-out, laboratory-tested examples to give students a solid grounding in the related design concepts. It includes a number of classroom-tested problems to encourage students to apply theory in a logical fashion. Review questions, fill in the blanks, and multiple choice questions offer the students the opportunity to test their understanding of the text material.
This text will be also appropriate for self-study by AMIE and IETE students.
Chopper basically uses a Thyristor for high power applications. The process of turning off a conducting Thyristor is known as commutation. Here Thyristor is turned off by a current pulse that is why it is called a Current Commutated Chopper.
Hands on-social-media-introduction-by-anyssaAnyssa Jane
A basic training on social media platforms as of June 2013 that are in major use. If you are in business we suggest you become familiar with one that will work best for your industry and find out where your customers are hanging out so you can reach your target market. We specialize in LinkedIn Training and Social Media Coaching!
Жыццё і дзейнасць многіх выхадцаў з беларускіх земляў непарыўна звязана з Пецярбургам. Гэты горад можна лічыць адным з самых уплывовых цэнтраў беларускай культуры XIX – XX ст. Тут працавалі многія навукоўцы, літаратары, грамадскія дзеячы. Нагадаем імёны некаторых найбольш яскравых прадстаўнікоў беларускай інтэлігенцыі, якія жылі і працавалі ў Пецярбургу: Ян Баршчэўскі, Яўхім Карскі, Міхаіл Каяловіч, Янка Купала, Іван Насовіч, Аляксандр Сержпутоўскі, Браніслаў Тарашкевіч, Павел Шэйн, Браніслаў Эпімах-Шыпіла.
У выніку другога падзелу Рэчы Паспалітай (1793) Беларускія землі канчаткова ўвайшлі ў склад Расійскай імперыі. Указам імператрыцы Кацярыны ІІ 23 красавіка 1793 года была заснавана Мінская губерня ў складзе 13 паветаў. З гэтага часу Мінск - губернскі горад. Прэзентацыя аб гэтым перыядзе ў гісторыі Мінска падрыхтавана супрацоўнікамі аддзела рэдкіх кніг і рукапісаў Цэнтральнай навуковай бібліятэкі НАН Беларусі.
Sesión de Laboratorio 3: Leyes de Kirchhoff, Circuitos RC y DiodosJavier García Molleja
Laboratory session in Physics II subject for September 2016-January 2017 semester in Yachay Tech University (Ecuador). Topic covered: electricity, electrical circuits, resistances, capacitances, diodes
Based on Bruna Regalado's work
Sheet1resistance of resistorTime Constant = 5.3s10v from power sup.docxmaoanderton
Sheet1resistance of resistorTime Constant = 5.3s10v from power supply 54.37 kohmscapacitor 96.9 micro farradsY axistheoretical max 183.9 micro amps0835-0.7955515238536.610-1.61434389121016.215-2.4293808894157.8520-3.1538785998203.3925-3.9935622102251.8330-4.6100761648300.8635-5.3652150213350.4640-5.9909209211400.2545-6.6006864927450.18950-6.8804003955500.13355-7.2317982824550.10160-7.507026893860micro ampsseconds
5 10 15 20 25 30 35 40 45 50 55 60 -0.79555152381367755 -1.6143438912029549 -2.4293808893719371 -3.1538785998159584 -3.9935622102179167 -4.6100761647569461 -5.3652150213448593 -5.9909209211092715 -6.6006864927301665 -6.8804003955327699 -7.2317982823706588 -7.5070268937511528
Sheet285.5k ohms96.9 micro farrads10v from power supplyTime constant = 8.3Y axistheoretical max 117 micro amps050.18-0.8481529267823.616-1.60092722281611.324-2.3373712091244.8432-3.1852592141322.3440-3.9120230054401.1448-4.6311456724480.53456-5.3895333748560.31464-5.9205362279640.2172-6.3228216831720.14880-6.67271694800.12488-6.8496476482880.10896-6.987797986796micro ampsseconds
8 16 24 32 40 48 56 64 72 80 88 96 -0.84815292670693698 -1.6009272227661917 -2.3373712090794614 -3.185259214069216 -3.912023005428146 -4.6311456723913524 -5.3895333748196981 -5.92053622787164 -6.3228216830624246 -6.6727169400157784 -6.8496476481748561 -6.9877979866556732
Sheet384.37k ohms96.9 micro farradstime constant 5.310vx axisy axis4.855-0.66358837837.7410-1.48722027978.9815-2.28278246579.520-2.99573227369.7625-3.7297014486voltsseconds
5 10 15 20 25 -0.6635883783184009 -1.4872202797098513 -2.2827824656978661 -2.99573227355399 -3.7297014486341906
Sheet4resistance 85.5k ohm96.9 micro farradtime constant = 8.3s10vx axisy axis5.348-0.76356964497.8916-1.55589714559.0624-2.36446049679.5432-3.07911388259.7640-3.7297014486voltsseconds
8 16 24 32 40 seconds -0.76356964485649126 -1.5558971455060702 -2.3644604967121334 -3.0791138824930413 -3.7297014486341906
R-C Circuits
Purpose: This lab will consider another electrical component with unique characteristics, the capacitor. The lab will also provide practice constructing and interpreting graphs for the purpose of circuit analysis.
Introduction: As you have learned, a capacitor in its simplest form is two parallel plates of conductive material, separated by a non-conductive material that prevents the plates from touching. Capacitance, “C”, is measured in Farads (F), with typical values of capacitors being measured in μF. Capacitor labeling sometimes deviates from standard metric prefixes in that an upper case “M” is often used in place of the μ symbol for micro- (x 10-6). Do not confuse it with mega- (x 10+6). A mega-Farad capacitor would be enormous, if one could even be built!
As an electrical potential (voltage) is placed across the capacitor, electrical charge flows (current) from the voltage source and builds up on the plates of the capacitor. If connected to a DC source, the current will continue to fl.
Initial and final condition for circuit
Explain the transient response of a RC circuit
As the capacitor stores energy when there is:
a transition in a unit step function source, u(t-to)
or a voltage or current source is switched into the circuit.
Explain the transient response of a RL circuit
As the inductor stores energy when there is:
a transition in a unit step function source, u(t-to)
or a voltage or current source is switched into the circuit.
RC Circuit
RL Circuit
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
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.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
Connector Corner: Automate dynamic content and events by pushing a buttonDianaGray10
Here is something new! In our next Connector Corner webinar, we will demonstrate how you can use a single workflow to:
Create a campaign using Mailchimp with merge tags/fields
Send an interactive Slack channel message (using buttons)
Have the message received by managers and peers along with a test email for review
But there’s more:
In a second workflow supporting the same use case, you’ll see:
Your campaign sent to target colleagues for approval
If the “Approve” button is clicked, a Jira/Zendesk ticket is created for the marketing design team
But—if the “Reject” button is pushed, colleagues will be alerted via Slack message
Join us to learn more about this new, human-in-the-loop capability, brought to you by Integration Service connectors.
And...
Speakers:
Akshay Agnihotri, Product Manager
Charlie Greenberg, Host
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
"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.
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
20. Practice! Calculate current immediately after switch is closed: Calculate current after switch has been closed for 0.5 seconds: Calculate current after switch has been closed for a long time: Calculate charge on capacitor after switch has been closed for a long time: Example E – I 0 R – q 0 /C = 0 + + + - - - E – I 0 R – 0 = 0 I 0 = E /R After a long time current through capacitor is zero! E – IR – q ∞ /C = 0 E – 0 – q ∞ /C = 0 q ∞ = E C R C ε S 1 R=10 C=30 mF ε =20 Volts I
21.
22.
23. RC Summary Charging Discharging q(t) = q (1-e -t/RC ) q(t) = q 0 e -t/RC V(t) = V (1-e -t/RC ) V(t) = V 0 e -t/RC I(t) = I 0 e -t/RC I(t) = I 0 e -t/RC Short term: Charge doesn’t change (often zero or max) Long term: Current through capacitor is zero. Time Constant = RC Large means long time to charge/discharge
Editor's Notes
1
Initial current through battery. Final current; final voltage across C.
Initial current through battery. Final current; final voltage across C.
Initial current through battery. Final current; final voltage across C.
Followup…what is current a long time later? What is charge on capacitor a long time later?
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