12v battery charger circuit with overcharge protectiontrabajos

I am seeking an experienced technician to construct a custom LED dimmer circuit on a DOT PCB board and ship the final product. The circuit will be incorporated into an 18” tall model mounted on a 12" x 7" x 7" housing. Key Project Details: 1. Construct a fully operational LED circuit dedicated to a dimming and brightening function with a cycle time of 10 to 20 seconds. 2. The circuit will include two red LEDs placed 5” apart at the top of the model, and an “On/Off” rocker switch situated at a specific distance from the board. 3. Power the unit with a 9V battery attached to the board. 4. Ensure that all components fit within an 11" x 6" area of the DOT PCB to fit inside the specified model di...

Por favor, regístrate o inicia sesión para ver los detalles.

Por favor, regístrate o inicia sesión para ver los detalles.

...create an online wallet that is capable of storing various currencies, notably Bitcoin and Ethereum. This wallet should allow its users to withdraw, pay, and transfer money anywhere without incurring any fees. Key Requirements: - The wallet needs to be accessible across Web, iOS, and Android platforms. - For security, the wallet should support password protection and biometric authentication (Fingerprint/Face ID). - It should be equipped with features such as transaction history, currency conversion, and email notifications. The person must submit during registration the following : Name , address, copy of ID and copy of Address and a valid phone number. And it is subject to approval and rejection . The process should be easy and friendly to all and not complicat...

I am seeking an expert in electronics to assist with the design and simulation of a mixed-signal circuit for a radio project. Key Project Requirements: - Design of a mixed-signal circuit - Inclusion of specific components: ADC/DAC and Power management ICs - Simulation of the designed schematic Ideal Skills: - Proficiency in designing mixed-signal circuits - Experience with ADC/DAC and Power management ICs - Capable of using simulation tools to validate circuit designs Prior experience with radio projects will be a significant advantage. Please include relevant samples of your work in your application.

I am seeking an expert in electronics to assist with the design and simulation of a mixed-signal circuit for a radio project. Key Project Requirements: - Design of a mixed-signal circuit - Inclusion of specific components: ADC/DAC and Power management ICs - Simulation of the designed schematic Ideal Skills: - Proficiency in designing mixed-signal circuits - Experience with ADC/DAC and Power management ICs - Capable of using simulation tools to validate circuit designs Prior experience with radio projects will be a significant advantage. Please include relevant samples of your work in your application.

I need a substation layout drawing that includes a basic layout with key components. The main components that should be included are transformers and circuit breakers. Ideal candidates for this project should have: - Extensive knowledge in electrical engineering - Proficiency in creating substation layout drawings - Experience in working with transformers and circuit breakers - Ability to deliver a clear and concise drawing

I'm in need of a detailed electrical overhead drawing for a plinth mounted substation with a 11KV line. This drawing should be designed for an industrial facility layout and needs to include: - Plinth-mounted substation components, particularly transformers and switchgear. - A comprehensive layout of the DP structure. - Necessary protection devices. Ideal candidates for this project should have experience with industrial facility electrical schematics and a strong understanding of substation components and layouts. Please provide previous relevant work samples with your bid.

I'm looking for a professional videographer to shoot a 30-second product video for my Amazon product page. The primary focus of the video will be demonstrating how to use the product( EV charger adapters) Ideal Skills: - Videography - Editing - Scriptwriting (if necessary) - Experience with Amazon product videos Please provide examples of your previous work, particularly any experience you have with product demonstration videos.

We are launching a new business focused on high-performance vinyl films, paint protection films, printing media, window films, and wrapping tools. We require an e-commerce website that is modern, responsive, and optimized for both desktop and mobile devices. The website will serve as our main retail store and should be designed to provide a seamless shopping experience for both professional installers and DIY customers. Project Objectives: Build a visually appealing, user-friendly e-commerce website. Integrate robust product catalog features for various product types and categories. Enable seamless payment processing and order management. Optimize the site for speed, SEO, and conversions. Include features for enhanced customer engagement, such as live chat, reviews, and interactive...

...technologies with a focus on drones and AI, but in a subtle and creative way. We want the design to feel fresh, forward-thinking, and visually distinctive. Professional: While emphasizing creativity, the logo should maintain a sense of professionalism and authority within the high-tech industry. Design Elements: Typography: Use a modern, sans-serif typeface that is clean and futuristic, emphasizing precision. The font should convey a sense of innovation and professionalism while staying simple and readable. Symbolism: A subtle, creative representation of drones or AI can be incorporated. Think abstract, minimal shapes like propellers, circuits, or nodes that subtly suggest the technology without being overly literal or complex. Color Palette: A neutral base (gray, black, or navy...

...candidates for this project should possess: - Extensive experience in electrical engineering, specifically with testing devices. - Strong understanding of OLED panel components. - Experience in troubleshooting display panels. This project requires a blend of technical knowledge and practical skills. A successful candidate will be able to deliver a reliable device that can assist in diagnosing display panel issues efficiently. I am looking for an electrical engineer to develop an LG OLED panel testing device. Required skills: - HF Circuit design - HF PCB design - FPGA programming Protocol: V-by-1 dual cable, 15 differential signal lanes. Preferably, the project should be implemented with a cheap FPGA. (GoWin?) The data sheet is available for the Pan...

...developing a semi-commercial SMS alarm, based on the Arduino UNO R3 and Sim800l. With semi-commercial I mean that these will be sold, but not in professional packaging or with any warranty, but I still need the hardware design to be sound, with an expected lifespan of more than two years. The coding is done. It is with the hardware design that I need help. The module will be powered by anything between 12VDC (wall wart or car battery) and 50VDC (Solar panel). First off, all hardware must be available on AliExpress. I think I need: • a converter from 12-50VDC to 12V to power the Uno, the 12V -> 4.2 converter and the battery charger. () • a suitable battery pack. The battery will supply both the ...

...data from various national level sources in India. Project Title: Comprehensive Collection and Analysis of Rape-Related Data in India Objective: Collect and compile rape-related data from government sources Organize data into categories: state-wise, age-wise, profession-wise, rape by relatives, rape at work, conviction rate, and crime against women Identify major politicians and celebrities with rape cases Visualize the collected data into engaging graphics and charts Scope of Work: Data Collection : Gather data from government sources: NCRB, Ministry of Women and Child Development, and state police departments Collect data on rape cases, convictions, and acquittals Data Categorization: State-wise: compile data by state and union territory Age-wise: categorize victims by ...

I need an innovative recharging system for industrial machinery that utilizes kinetic energy. This electro-mechanical based system should include a generator, battery storage, and a control system. Key Components: - Generator: To convert kinetic energy into usable electrical energy. - Battery Storage: To store the generated energy for later use. - Control System: To manage the energy flow and ensure efficient usage. Ideal Skills: - Expertise in electro-mechanical systems design. - Experience with kinetic energy conversion systems. - Proficiency in control systems engineering. - Knowledge of battery storage systems.

I'm looking for a professional who can delete my Facebook and Instagram accounts. Additionally, I need to have all data erased from my phone, including contacts, photos and videos, and app data. Ideal Skills and Experience: - Proficiency in social media account management, specifically Facebook and Instagram - Expertise in mobile phone data management - Strong understanding of privacy and data protection - Excellent attention to detail - Trustworthy and reliable

...communication, tailored specifically for individuals with disabilities and their caregivers. Accessibility and simplicity are essential for this project. Key Features: Task Management: Users should be able to create, assign, and track tasks efficiently. Communication Tools: The app should include straightforward, effective communication features. Accessibility Options: Accessibility must be seamlessly integrated throughout the app to ensure ease of use for all users. Non-Functional Requirements: Ease of Use: The application should be intuitive and easy to use. Cross-Platform Availability: The application should be available on both iOS and Android platforms. Data Protection: Users' personal data should be protected in accordance with...

I'm seeking a professional with profound expertise in integrating nphies for pre-authorization requests into a Hospital Management System (HMS). This role involves ensuring the integration aligns with the General Data Protection Regulation (GDPR) requirements. Key Responsibilities: - Implement nphies for managing pre-authorization requests within our HMS. - Ensure seamless integration with our current hospital management system. - Uphold and maintain compliance with GDPR throughout the integration process. Ideal Skills: - Extensive experience with nphies integration. - Proficient in working with Hospital Management Systems. - Strong understanding and expertise in GDPR compliance.

...data Collecting the following information: name, position, company name, email address (if available), link to LinkedIn profile Prepare a database in an Excel spreadsheet containing the collected information Purpose: to collect data Requirements: Experience in collecting data from LinkedIn Familiarity with data scraping tools Attention to accuracy and completeness of data Adherence to LinkedIn rules and data protection Deadline for completion: 14 days Please provide me with your experience in similar projects and the proposed rate for the task for EACH 1000 CONTACTS. Please keep in mind that there are programs to collect data. Important: I care about time and low price Note: I reserve the right to use the collected data only for business purposes, res...

I need a WordPress expert to create a secure portal for uploading photos and videos. The portal needs to have: Project Requirement: Secure WordPress Portal Development We require a straightforward WordPress portal with the following features. The use of free themes and plugins is acceptable: Password Protection: The portal must be secure and password-protected, ensuring that only authorized users can access the site. User Management: The admin should have the ability to create, enable, or disable user accounts. Additionally, the admin should be able to grant or restrict download permissions for individual users. Photo Management: Users should be able to upload, search, and download photos. However, uploaded photos should remain pending until approved by the admin. The ad...

I'm seeking a modern-style logo for a custom print business shirt that incorporates a unique graphic or symbol, rather than just text. The logo should encapsulate a sense of creativity, setting my brand apart from the competition. Ideal Skills: - Graphic Design - Logo Design Experience with: - Creating minimalist yet engaging designs - Working with modern design trends The Logo needs to include three graphics, 1) wind turbine 2) solar 3)battery The logo shapes and size can be accentuated and use the same blue color palette shown in the file. I like the logo to be used for a customer print shirts, which is going to be used for a custom shirt. creative and professional!

I'm looking for a skilled PCB designer who can work with an existing PCB, modify both its component placement and circuit design, and also make some changes to an open source gamepad firmware.

...developer who can help create a website for my automotive services business. This site will cater to a variety of services including window tinting, audio installation, detailing, dent and scratch removal, and more. Key Features: - The site should have detailed pages for each of our services: - Window Tint - Audio Installation - Detailing - Dent Removal - Scratch Removal - Paint Protection Film - Vinyl Wrapping - Headlight Restoration - Light Accessories and Underglow - Brakes and Oil Change - Windshield Replacement - The site should be user-friendly, easy to navigate, and mobile responsive. - A strong emphasis on SEO and e-commerce functionality is a must as we aim to sell our services online. Ideal Skills: - Proven experience in developing e-...

...Materials**: The scene's environmental elements need proper texturing and material application. This includes terrain, buildings, and other environmental props. Your ability to enhance the realism and visual appeal through textures is vital. - **Character Interactions**: I need assistance with refining the character's interactions with objects in the scene. This could involve adjusting current movements or creating new ones to ensure a seamless interaction. I’d like your help finishing up the Blender file with a few specific tasks to complete the scene and animation. Below are the details: 1. Finishing the Background (Easement or Park Strip) Context: The scene is set in a neighborhood, and I need the background area, representing the easement or p...

I am looking to build a professional and modern website for my agency, Klik Influence, which specializes in digital marketing and influencer management (particularly TikTok live influencers). The website should be fully bilingual (English and Arabic) with a focus on user-friendly navigation, responsiveness across devices, and SEO optimization. **Requirements:** 1. **Website Platform:** - Preferably WordPress (open to suggestions) - Should be easy to manage and update content on both language versions 2. **Design and Aesthetic:** - Clean, modern, and professional design - Reflects digital marketing and influencer themes - Use of visually appealing graphics and interactive elements 3. **Bilingual Functionality:** - Full English and Arabic language support - La...

I'm seeking a bold and vibrant logo for my Lithium Ion Battery Manufacturing startup, SWARNALI. The logo should be modern and sleek, incorporating a battery icon to reflect our industry. It is required to build an good international level brand in Lithium Ion Battery Key Requirements: - A design that is bold and vibrant, setting us apart in the market - Incorporation of a battery icon - A color scheme of blue and white Ideal Skills and Experience: - Proven experience in logo design, particularly for tech or manufacturing industries - Strong understanding of modern and sleek design aesthetics - Ability to create a design that is both bold and vibrant.

I'm looking for a Logisim Evolution expert to help create an educational project aimed at undergraduate students. The project will focus on teaching digital logic design through circuit simulation. Ideal Skills: - Proficiency in Logisim Evolution - Experience in digital logic design - Educational content creation - Understanding of undergraduate curriculum - Circuit simulation expertise Your role will be to leverage Logisim Evolution to create engaging and informative simulations and circuit designs that will help students understand complex concepts in a fun and interactive way.

Assalam o alaikum, its Muhammad Javed here an electrical & e...electronics engineer. I am looking for electrical engineers to be a part of my team. I have regular flow of work and already I have a team of professionals and now I am finding more professionals to provide me their services in the field of electrical engineers. I need freelancers having firm command over following domains Electric Circuit Design Control System Design Power System Design Image Processing Adaptive Systems Embedded Systems We mostly deal with following software's/hardware's MATLAB/SIMULINK Proteus Multisim PIC Microcontroller Arduino / ESP32 FPGA/VHDL Applicant should be proficient in writing technical FYP reports. Feel free to place your bid if you have expertise in ...

I have battery packs NBL9100 which consist of 2 batteries 18650 in parallel (3,7v 5200mAh) and have a small bms circuit embedded. They connect with XH 2.54 5pin plug I would like the circuit to be able to battery status (health) , 4. handle multiple battery packs at the same time. You can either use Arduino or create custom design prototype and circuit.

...and schedules. * Multi-Location Management: Ability for gym owners to manage multiple gym locations separately, with distinct settings for each. Membership Management: * Membership Plans: Create different membership tiers and packages (monthly, quarterly, annual, etc.). * Automated Renewals: Set up automated membership renewals and payment processing. * Expiry Notifications: Send reminders to gym members and staff when memberships are about to expire. Billing and Payments: * Payment Tracking: Track member payments and dues with a detailed payment history. * Automated Invoicing: Automatically generate invoices for memberships and services. * Multiple Payment Methods: Integration with popular payment gateways (Stripe, Razorpay, etc.) for seamless payments. Scheduli...

I am seeking assistance with the manufacturing of electric bike battery packs. The task specifically involves: - Battery Pack Assembly: You will be responsible for putting together the battery packs from individual cells. - Configuration: The battery packs will need to be configured in a combination of series and parallel. - I want to assemble samsung 18650 cells into production ready ebike batteries,to start, 10S4P 12Ah for a 36V 500W motor. Here are the specs: -Would ideally like to do initally small batches at a time, but can negotiate. Hoping to become ongoing work if satisfactory -Can provide all materials including cells, nickel strips, cell bracket, spot welder, soldering iron, tin, etc.. -Can purchase recommend materials if

I need an effective anti-DDoS solution for my MMORPG game server. The protection should ensure: - Consistent Uptime: The most critical requirement is that the game server remains online and accessible to players at all times. This is paramount to maintaining a good player experience and keeping the game operational. Ideal candidates for this project should have: - Extensive experience in implementing anti-DDoS solutions, particularly for game servers. - A strong understanding of the specific needs and challenges associated with MMORPG server protection. - Proven track record of ensuring consistent uptime in the face of potential DDoS attacks.

Por favor, regístrate o inicia sesión para ver los detalles.

...candidate will be proficient in both front-end and back-end development, with a strong focus on creating a seamless user experience. Key Responsibilities: • User Registration and Profiles: Develop a robust system that allows both service providers and customers to create, manage, and customize detailed profiles. This should include options for profile verification, service listings, and user reviews. • Search and Filter Functionality: Implement advanced search and filtering options to help users find the right services based on location, ratings, availability, and other relevant criteria. • Booking and Scheduling: Integrate a booking system that allows consumers to schedule services directly through the platform, with features such as calendar in...

...sector and need a comprehensive software solution. I require a freelancer with both design and development expertise to help create a robust policy aggregator platform from scratch. The ideal candidate should possess the following: - Proven experience in developing aggregator systems, especially in the policy or similar financial sectors. - Strong knowledge of software architecture and database design to ensure scalability and performance. - Proficiency in web development languages and frameworks suitable for creating a user-friendly interface and secure backend. - Ability to integrate advanced search and comparison algorithms to aid users in finding the best policy options. - Understanding of compliance and data protection regulations to ensure the platform meets industr...

...and should feature secure PDF viewing with remote storage, user management, and a licensing system. 2. Project Requirements: (1) Windows .exe Installer (PDF Viewer) • Installer: The application must be provided as a .exe installer, available for download via an online platform. • User Authentication: Post-installation, users must log in with a valid ID and password, tied to a licensing system for access. • PDF Storage: PDF files will not be stored locally but retrieved from an online server. • PDF Access: Users should be able to temporarily view PDFs in RAM without permanent downloading. Files should be secure. • UI/UX: The interface and controls should follow the provided design. • Installer Size: To be confirmed by the developer. • Pass...

I'm seeking seasoned online tutors proficient in graduate-level mathematics, specifically within the realms of Mechanical and Electrical Engineering. The focus areas are Circuit Analysis and Fluid Mechanics. Ideal candidates will have: - An advanced understanding of graduate-level mathematics - Expertise in Mechanical and Electrical Engineering - Proficiency in Circuit Analysis and Fluid Mechanics - Experience in online tutoring - Excellent communication skills Your role will be to help me comprehend complex concepts, solve challenging problems, and prepare for exams.

I'm looking for a developer proficient in Node.js, Python, or .NET Core who can create a function to protect video files on... Mean that you can guide me step by step protect one video i can do it in myself. Key Requirements: - Create a media protection function for video files - Implement a solution that works primarily on Web browsers - Use of protection methods is flexible (Encryption, Watermarking, or Access control) Ideal Skills and Experience: - Strong experience in Node.js, Python, or .NET Core - Previous work in media file protection is a plus - Experience developing functions for web browsers Please provide your proposed method of protection in your bid. I'm open to your expert advice on the best approach.

I'm in need of a professional who can help me acquire new clients, specifically individual consumers. The ideal candidate should be proficient in utilizing social media, email marketing, and direct outreach to generate leads and increase sales. Key Responsibilities: - Developing and implementing client acquisition strategies across va...acquisition and sales - Proficiency in social media and email marketing - Excellent communication and outreach skills - Prior experience targeting individual consumers preferred What we offer its Partner-SDR: - Comprehensive Training and Support - Fixed Pay Lead payment for each lead generated - Commission on Recurring Revenue. - Contract for a minimum of 6 months offering job security and protection in the eventuality of early termination of...

I'm seeking an ongoing relationship with Experienced AutoCAD Electrical professional with a competitive hourly rate to design control panels, MCC's, ICA's for industrial automation and to modify AutoCAD Electrical Drawings for existing site modification work. The design should incorporate specific components and adhere to my chosen specifications and defined requirements. Key Responsibilities: - Create a detailed AutoCAD Electrical design for an electrical control panels / Motor Control Centres - this includes motor protection, motor control, PLC control and systems integration skills. - Modify AutoCAD Electrical Drawings design for existing electrical control panels / Motor Control Centres. - The designer should be fluent in English and be able to rea...

I'm in need of a comprehensive dataset of New Zealand consumers for my marketing campaigns. The ideal freelancer w...preferably 1 million or more. Data Fields Needed: - First Name - Surname - Phone or Mobile - Email - Postal Address - Age - Gender The dataset should be rich and varied, providing a good cross-section of the New Zealand population. The data needs to be accurate, up-to-date, and compliant with all relevant data protection regulations. Ideal Skills and Experience: - Experience in data sourcing and analysis - Familiarity with New Zealand demographics - Ability to deliver large datasets - Knowledge of data protection regulations - Skills in data cleansing and verification Please also include any additional fields you can deliver. The more co...

I'm looking for an expert in Molecular Dynamics (MD) simulations to help me investigate the interface stability of various solid polymer electrolytes with metallic electrodes in solid-state batteries. Key Responsibilities: - Conduct MD simulations focusing on interface stability. - Analyze atomic interactions, ionic transport, and interface stability. Ideal Skills: - Extensive experience with MD simulations. - Strong background in solid-state batteries and their components. Please only bid if you can demonstrate relevant experience and can deliver this project in a timely manner.

I'm building a two-wheel drive differential drive system for smooth indoor surfaces. I need advice on selecting motors capable of supporting a load of at least 10kg, inclusive of the motor weight and battery weight, to run for 10 hours. The system is intended to achieve a moderate speed of 2-5 km/h. I need someone to do some research and find an appropriate motor, battery to buy that has shipping available to Canada and fits within budget and provide me with the item purchase link. Additionally I would like to be able to control the speed and direction of the motors (an encoder is also good to have)

I'm in need of a PowerPoint professional to help me create a presentation on the Digital Data Protection Act. The presentation will be for an educational lecture, so it needs to be both clear and comprehensive. Key Requirements: - The presentation must be designed in a formal and professional style. - It should effectively break down complex aspects of the Digital Data Protection Act into understandable segments. - The presentation should be visually appealing, engaging, and easy to follow. - Experience in creating PowerPoint presentations for educational purposes is highly desirable. - Prior knowledge or experience with the Digital Data Protection Act will be an advantage.

Por favor, regístrate o inicia sesión para ver los detalles.

My computer has been exhibiting signs of adware infection. I've noticed my browser being redirected to unwanted sites. I primarily use an antivirus for protection, but it seems this issue has slipped through the cracks. Ideal Skills and Experience: - Proficient in identifying and removing adware - Experience with optimizing system performance post-infection - Knowledgeable in comprehensive computer security measures - Familiar with various antivirus and anti-malware software The aim of this project is to thoroughly clean my computer, remove any traces of adware, and ensure that my system is running optimally. I would appreciate any recommendations for additional protective software that could prevent future issues.

I'm seeking an experienced web developer to create a comprehensive social networking site. This project involves the following key components: - User Profiles: The application should allow users to crea...chats, group discussions and ideally include options for sending images, emojis and other multimedia. - Activity Feed: The site should include a dynamic activity feed, showcasing updates from friends and trending topics. Ideal candidates will have a strong background in web application development with a focus on social networking sites. Experience with implementing secure, user-friendly interfaces and efficient, real-time communication systems is a plus. Familiarity with privacy and data protection regulations is also highly desirable. Please share you...

I am in need of a skilled MERN Stack Developer with a strong focus on back-end development. The ideal candidate should have extensive experience with the MERN (MongoDB, , React.js, Node.js) stack, particularly with back-end functionalities. Key Skills: - Proficiency in Node.js and - Strong understanding of server-side logic - Experience with RESTful APIs - Knowledge of security and data protection Please note that specific back-end functionalities will be determined during the project, so flexibility and problem-solving skills are a must.

I’m looking for an expert in battery power management systems. The primary goal is to connect LifePo4 batteries and chargers in parallel while effectively monitoring the overall system health. Key Responsibilities: - Design and implement a system that connects LifePo4 batteries and chargers in parallel - Monitor system health, focusing primarily on voltage levels and current flow - Optimize battery life and improve charging efficiency Ideal Skills and Experience: - Extensive knowledge and experience with LifePo4 batteries - Proficiency in designing battery management systems - Experience in monitoring battery parameters like voltage levels and current flow - Skills in optimizing battery life and improving charging efficiency

We are seeking a 3D graphic/visual artist with a flair for electronic hardware to create a highly detailed, visually appealing 3D render/animation of an IoT product designed for remote monitoring in the HVAC maintenance/service industry. The purpose of this engagement/contest is to provide us with clear product visualization, specifically for investor engagement as the hardware device is at the core of our technology. But the hardware is yet to be manufactured. So this is completely conceptual by nature, but we do understand what it will most likely look like when we do build it. So....Drum Roll?? It will have layers of at least 4 separable technology visualizations including on board communication capability in LoRa, Wi-Fi, 5G and BACnet, a processing core, printed circuits ...