12v battery charging circuitงาน

I am looking for an experienced freelancer to create a circuit using A7672S for the purpose of data upload. Specific requirements for the circuit are provided, and the project needs to be completed within a week. Skills and experience required for this job include: - Proficiency in circuit design and implementation - Knowledge of A7672S and its capabilities - Experience with data upload and storage If you have the necessary skills and can meet the deadline, please submit your proposal.

Need electronics engineer to make a product circuit in cad

Looking for individuals who are interested in creating interesting lighting effects for architectural models. From the conception of writing the program needed for the leds to behave as intended, designing the pcb needed for the lights to work, to designing the entire circuit and coming up with the circuit schematic. BREAKDOWN OF PROJECT Dimensions: Measurements are in mm (lxbxh) 2 components – architectural model with a case below to hold electronic components Architectural model (brass): 650x450x210 Approx. Case (wood): 730x530x600 Approx. All electronics will be placed in the case but have wires going up into the architectural model above and the lights are placed around in the model (picture attached in post for further understanding of model) The project is to ...

PCB design for a scale with a 4G module to send results to WebServer using HTTP Post. Circuit is intended to be powered from battery with a support of solar panel. MCU will STM32 and 4G GSM module will using SIM7000

Freelance has made this so complicated... https://www.freelancer.com/projects/circuit-design/document-schematic-for-ETEKJOY-ACR/details

1-I want a design for the smallest Pic Microcontroller that will handle the program. 2-I want the circuit to operate at 9vdc(common battery) and the program to remain unchanged when powered off. 3a)-I want the program to control a vertical line of 10 conventional 3 or 5mm, 20ma LEDs. 3b)-I want the program to also control three common 5mm LEDS @20ma in parallel. 4-When the circuit is powered on I want the stack of 10 LEDs to act in this manner…..the top LED will light then go off and the next LED will light below it with the effect continuing till the bottom LED is lighted and remain on. Next the effect starts again at the top until the column of LEDs is all lighted. This column stays lighted for about two seconds. 5-I want a potentiometer to adjust the fill ...

...faulty non-return valve or similar fault preventing the system from maintaining pressure No flow protection - Activates if a pump is running but there is no flow for 30 seconds (if using flow switch instead of low level float), with automatic restart attempts Feedback signal fault protection - Shuts down all pumps in the event of a transducer failing Pump VSD fault protection - VSDs feature short circuit, overload, supply phase loss, under/over voltage, earth fault and other protections to protect the pumps Interface Features Main screen with system status, auto/off/manual modes Pump screens with status, logged data and auto/off/manual control Alarms screens with mute/reset, date & time stamped historical faults Logged data with system event & fault counts, pump starts, r...

18 wheeler truck parking to include charging stations, RV parking with pedestrian infrastructure

Looking for a modern logo design. It's for a company called USVOLT, all caps, no spaces. It is a battery and energy company so maybe a battery and/or zap... see

...Description: Automotive Battery Pack Case Design Skills and Experience: - Proficiency in Fusion 360 CAD software - Knowledge of automotive design requirements and regulations - Experience in designing plastic components for consumer electronics or automotive applications Project Details: - The client is seeking a skilled CAD designer to create a battery pack case for automotive use. - The preferred CAD software for this project is Fusion 360. - The battery pack case will be made from plastic material. - The designer should have a strong understanding of automotive design requirements and regulations. - Experience in designing plastic components for consumer electronics or automotive applications is highly desirable. Deliverables: - A detailed CAD model of the ...

Technology One Pager Design Expert Our company is a leading technology company with its Cashless Payment and Telemetry solutions developed for self-vending machines such as Vending Machines and EV Charging Stations. We are looking for an experienced Technology One Pager Design Expert to promote your innovative products. Job description: - Creating one-page designs that can effectively represent the company's technology products and services. - Presenting technical information in an attractive and understandable way using visual design skills and creative abilities. - Editing and improving designs taking into account customer feedback. - Explaining the complexity of technology products with simple and original graphics. Required Qualifications: - Experienced in the field of...

I am looking for a power management system for a microgrid. The primary sources of energy are solar (with battery) and a diesel genset. Occasionally line (grid) power will be available and should be used instead of the genset when available. The load will be variable but can include lighting, small heating and cooling systems, small water pumps, and miscellaneous 120 VAC outlets for tools or other light equipment. I need a power management system that can intelligently prioritize solar and/or battery but turn on the diesel genset when needed and when grid power is not available. I need an expert who can develop the power management system to meet the specific needs of my microgrid and guarantee that it is both reliable and efficient. Please let me know if you have the skil...

...technology is designed to provide information to the occupants of electric vehicles (including hybrid vehicles) and to make better use of battery charging time. One of the problems with charging electric vehicles is that the time required to charge the batteries installed in electric vehicles is longer than the time required to refuel a gasoline-powered vehicle, and passengers can become bored during the charging time. To solve this problem, for example, when providing information about charging stations to passengers, the technology simultaneously provides information about spots where the passengers can visit while the vehicle is parked at a charging station. The information is provided to the passengers by, for example, being displayed on ...

We are seeking a skilled freelance app developer to lead the redesign and development of our EV Charging App. Your input and expertise are highly valued as you'll play a pivotal role in shaping the project's execution. Key Responsibilities: Develop a user-friendly mobile app based on the provided design and project modules. Create a seamless user registration and login process. Implement profile management features, including OTP verification and profile setup. Integrate QR code scanning, plug selection, and payment processing for the charging process. Develop wallet features, including top-up functionality and payment method selection. Create transaction management features, including transaction history display. Qualifications: Proven experience in mobile app de...

...PCB layout designer to design a PCB for my project. The size of the PCB that I require is less than 10 cm. I am not specifying any particular components for the layout, as I am open to suggestions. The complexity of the circuit design is moderate - it will involve 20-50 components. The ideal candidate will be familiar with the tools for designing PCBs, including Altium designer, Eagle CAD, KiCad or other similar software packages. They should have extensive experience working with PCBs, understand all of the relevant safety considerations, and be able to translate circuit schematics into functioning board layouts. A keen eye for detail and a commitment to high quality standards are essential. If you think you have the expertise to design a PCB for me, please get in touch...

I'm looking for an experienced electronics designer to help me create a circuit for a consumer electronic device. I have a rough idea of what's needed, but I need some professional input to bring it all together in the most efficient way. The circuit needs to be designed under safety and reliability criteria set by the applicable local standards for consumer electronics. Additionally, I need help ensuring any integrated electronics are able to handle any environmental and atmospheric changes. Of course, I'm open to any other suggestions in order to maximize the quality of the outcome.

I am looking for someone to help me find 2 electric mountain bikes in Bangkok. I have a budget of less than $200, and I am open to any brand or model. The key feature I am looking for is a long battery life and a powerful engine. We plan to make a tour in Thailand, Laos, and Vietnam. We need an (aftermarket) luggage rack on the back to carry our stuff. Skills and Experience: Living in Bangkok Knowledge of electric mountain bikes and their features Familiarity with the bike market in Bangkok Ability to research and find the best options within the given budget Strong negotiation skills to ensure the best price for the bike

...Design raw HTML approximately 40 screens which I've designed u, sing an image editor. These images must be converted to HTML screens. The preferred HTML development is to use the provided CSS to complete the screen designs. No further CSS development is required. Screens must render correctly on PC, iPhone and Tablet. The preferred developer will need to advise the cost per screen. They will be charging to complete the work. Hints will be shown on hover of an element, such as text or a widget if the database is set up to show a hint on a particular widget. All elements need to accommodate for a hint to be displayed on hobbit. Example: <html> <head> <title>Title of the document</title> </head> <body> <h2>Example</...

...Design raw HTML approximately 40 screens which I've designed u, sing an image editor. These images must be converted to HTML screens. The preferred HTML development is to use the provided CSS to complete the screen designs. No further CSS development is required. Screens must render correctly on PC, iPhone and Tablet. The preferred developer will need to advise the cost per screen. They will be charging to complete the work. Hints will be shown on hover of an element, such as text or a widget if the database is set up to show a hint on a particular widget. All elements need to accommodate for a hint to be displayed on hobbit. Example: <html> <head> <title>Title of the document</title> </head> <body> <h2>Example</...

I am looking for an electronics technician with specific skills and qualifications in circuit design, PCB layout, and troubleshooting and repair. The goal of this project is to repair a specific piece of electronics. Skills and Experience Required: - Strong knowledge and experience in circuit design - Proficiency in PCB layout and design - Expertise in troubleshooting and repair of electronic devices - Familiarity with various tools and equipment used in electronics repair - Attention to detail and ability to identify and fix issues accurately and efficiently Equipment and Tools: - The client has all the necessary equipment and tools for the project. If you have the required skills and experience and are available to assist with repairing a specific piece of electronics, ...

...**4-Node Relay Control:** - Develop a control circuit using microcontrollers or IoT platforms (e.g., Raspberry Pi, Arduino, ESP8266, etc.) to control four relays. - Implement remote control and monitoring capabilities via the Internet. - Ensure secure communication and data privacy. - Create a user-friendly interface for remote control. 3. **IoT Integration:** - Integrate the relay control system into our IoT application. - Enable users to remotely control and schedule devices connected to the relays. - Implement real-time status monitoring and notifications. - Ensure scalability and reliability for a growing number of devices. 4. **Documentation and Support:** - Provide detailed documentation of the design, circuit diagrams, and code. - Off...

Project Title: Help to understand circuit using Parallax QuickStart board Description: I am seeking assistance in understanding digital circuits using the Parallax QuickStart board. I'm trying to build a project called "PropB3" that's use a Propeller chip, however, I find an easy solution using the Parallax P8X32A QuickStart board in a forum but I can't understand how to connect it with the rest of components because no instruction has posted on the forum. I have the original project schema, all the pieces but I don't know how to connect it together, so I need help from someone that have experience in electronic and Parallax boards. Specific Concepts or Circuits: - I am struggling to understand digital circuits and their functionality. Current Level...

I'm in need of a micro GPS device that can track personal belongings within a range of 50-100 meters. The device should use a battery as its power source. The purpose of this device is to help me find my belongings when I accidentally lose them. It should have the capacity to track my belongings and alert me when they aren't in the specified range. Having this device will give me peace of mind, knowing that if I do ever misplace something, it can easily be found again. It should fit in a diameter of 0.264 and be no more than 25 - 75 grains.

My project requires the development of a highly specialized AGV robotic system with a payload capacity of less than 500kg for outdoor operation. The AGV must be powered by a reliable, long lasting battery source, and will need to be able to navigate uneven terrain in a variety of weather conditions. I am looking for an experienced and reliable Freelancer to help design and build a robotic system that can meet these specifications.

...looking for a freelancer to design a battery charger with schematics and a PCB. The charger needs to have a low voltage cutout and shutdown notification feature. Design done on KiCad or in Proteus. Design files needed. Requirements: - Input voltage range: 15V-24V - Battery type: Lead Acid - Additional features: Overcharge protection The charger should use CC, then bulk, then float. It will operate at higher temperatures (typical 45degC) It should take battery temperature in concideration to prevent overcharging The supply voltage is typically 24V and 2 diodes should connect the load so that power transfer is automatic when 24V falls away. Need to have fuses etc to ensure safe operation Load can opperate down to 10V and up to 32V Battery will be 7 or 14Ah ...

...input voltage range for the MPPT charge controller is 400V DC Solar input. Output Voltage Range: - The desired output voltage range for the MPPT charge controller is 48V. Battery Type: - The MPPT charge controller will be charging a Lithium battery and Lead acid battery Ideal Skills and Experience: - Experience in hardware and firmware development for MPPT charge controllers of 5kW capacity. - Proficiency in working with 400V DC Solar input and 48V output voltage ranges. - Expertise in designing and implementing charging algorithms for Lithium batteries. - Knowledge of the specific requirements and considerations for charging Lithium batteries. - Familiarity with relevant industry standards and best practices for MPPT charge controller devel...

Hi Pooja G., my website is up. It’s a basic website. Please go through it and tell me what can be done to improve it and how much will you be charging for the SEO of the same. It’s

...schematic to have a power-supply-circuit for an IoT module. Required specs : - Input 5v to 12v (if circuit can accept more than 12v, welcome !) - Input type are : external power-supply or solarpannel - Input polarity inversion security - Output (dual) : 5v (min. 500mA peek) + 3.3v (min. 500mA peek) - Battery support (single or dual cell LiPo/Li-ion) Battery must charge when external power-supply/solarpannel give power, and Output must be active on external power-supply/solarpannel when enough voltage and switch to battery when required (external power-supply or solarpannel off). Common use cases : #1) Connected on external power-supply - without battery #2) Connected on external power-supply - with battery #3) Connected o...

Circuit #1) The goal is to have a circuit to give/cut power (+3.3v / +5v) to sub ICs/sensors, command by a microcontroller pin. Must cut the input voltage (circuit must be placed between VCC and IC) = high-side switch. Circuit #2) The goal is to have a circuit to enable/cut I2C bus (+3.3v / +5v), command by a microcontroller pin. We want +3.3v and +5v sensors to be connected on the same I2C bus - what about pull-up resistor ? Remarks: If power is cut (by circuit #1), power must not leak through I2C pull-up resistors. Maybe circuit #2 is not necessary if we can be sure that no current leak through pull-up resistors when cut the power. Guidelines : - Simplest as possible (the less or cheaper components) - Easy to find component (AliExpres...

details on chat there are 7 circuits.

...Tasks to be Completed: Power Systems Deadline for the Project: 1-2 weeks We are looking for an experienced electrical engineer to complete a project within the next 1-2 weeks. The scope of the project involves working on power systems. Ideal Skills and Experience: - Strong background in electrical engineering - Experience with power systems design and development - Knowledge of electrical circuit analysis - Familiarity with relevant software and tools The specific tasks to be completed include: - Designing and implementing power systems - Conducting testing and analysis - Troubleshooting and resolving any issues that may arise The ideal candidate should have excellent problem-solving skills, attention to detail, and the ability to work independently. If you have the neces...

...Frequency range: 47 ~ 64 Hz 4. Efficiency: (70%) + Kindly specify the best possible typical efficiency (%) 5. Insulation Rating (Input/Output): 4kV AC 6. Insulation Rating (Output1/Output2): 4kV AC D. Power Supply Outputs: 1. Output 1: 5V / 1.5A (Peak 2.5A) ~ 7.5W (Peak 12.5W). ----------------------------Isolation-------------------------- 2. Output 2: 12V / 0.5A ~ 6W. E. Board Dimensions: - Preferred Board Dimensions (L x W): 118 x 92 mm. Note: Size of board can be negotiated. F. Safety Specifications: Standards: EMC – Conducted and radiated emission CISPR22 / EN5022 Class B Electrostatic Discharge Immunity IEC 61000-4-2 Contact ±8kV/ Air ±15kV RF, Electromagnetic field immunity IEC 61000-4-3 30V/...

<Overview> 　Please gather product information on the battery described in the Technology Description section below, and on cars that have or will have this battery. <Technology Description> 　This technology is used in film-covered batteries to prevent the film from rupturing when gas is generated in the battery. One of the problems with film-covered batteries is that the film may burst after gas is generated inside the battery and the film is deformed so that it expands. To solve these problems, this technology folds a portion of the film covering the battery, and when gas is generated in the battery, this folded portion expands to widen, thereby preventing the film from rupturing. Please search for this technology in this contest. ...

I ...creating a piece of artwork that will be used for commercial purposes. The piece of artwork I want created features former US president Donald Trump and current US president Joe Biden. In this picture they will be portrayed as a bull and matador. Donald Trump will be dressed as a bullfighter as with a big grin on his face as he pulls away a red cape with the word MAGA clearly visible on it. Charging towards him with smoke coming from his nostrils is an angry Joe Biden as a bull with his head superimposed where the bull's face would have been. The second design is identical except for this one the matador will be Florida Governor, Ron De Santis. You are welcome to use AI generated art, but the submissions will be judged on merit and the best one selected as the winne...

I am looking to design a modern and sleek brochure for the purpose of promoting our products (battery operated golf carts). I am open to creative and artistic suggestions for the color scheme, and am trusting the designer to come up with an eye-catching design that will ensure my product or service stands out! I am excited to see what kind of brochure you can design that will really catch the attention of potential customers. 1 Page as 'Front Cover' 1 Page as 'Back Cover' 1 Page as 'About Us' 2 Pages as 'Technical Specifications' 10 Pages as '10 Models X 10 Pages' 1 Page as 'Utility Golf Carts' Total: 16 Pages (A4 size). Wants the design in psd (with non-merged layers) & jpeg format. I can supply only the contents &am...

I am looking for some help with writing a tender. The tender is for a government project, and I have specific requirements and guidelines that need to be followed. Additionally, the length of the tender I need should be between 10-20 pages. We provide EV charging products and services, see to see what we do. I need someone who has significant experience in this particular type of project, able to research and draft an effective tender that meets the government’s strict requirements and deadlines. Ideally, you should also be comfortable making any changes necessary to meet those requirements. Given the technical complexity of such a project, excellent command of the English language is a must. You should also have a meticulous attention to detail, and possess excellent com...

I am looking to design a modern and sleek brochure for the purpose of promoting our products (battery operated golf carts). I am open to creative and artistic suggestions for the color scheme, and am trusting the designer to come up with an eye-catching design that will ensure my product or service stands out! I am excited to see what kind of brochure you can design that will really catch the attention of potential customers. 1 Page as 'Front Cover' 1 Page as 'Back Cover' 1 Page as 'About Us' 2 Pages as 'Technical Specifications' 10 Pages as '10 Models X 10 Pages' 1 Page as 'Utility Golf Carts' Total: 16 Pages (A4 size). Wants the design in psd (with non-merged layers) & jpeg format. I can supply only the contents &am...

I want a simulation of the circuit attached, in any of the circuit simulation softwares like tinkercad, proteus or fritzing. I'll provide you with the proper circuit diagram and arduino code.

I am seeking a skilled Freelancer to design and develop a circuit board and software package for consumer electronics. The software package should include embedded systems software, and must incorporate the specific features and functionalities that I have in mind. The contractor that I select should have extensive experience in designing and developing circuit boards and software packages for consumer electronics. This project also requires an understanding of embedded systems software and digital engineering practices. The successful candidate should be able to demonstrate a portfolio of experience in consumer electronics project design and the necessary technical capabilities required to develop high-quality circuit boards and software packages. The candidate shou...

...information on vehicles that have or will have the technology described in the Technology Description section below. <Technology Description> 　This technology is designed to improve the cooling performance of a battery cooling system located on the underside of a vehicle. 　One of the problems with cooling devices that cool batteries mounted on the underside of vehicles is that heat from the ground heats the cooling pipes of the cooling device and prevents the battery from being cooled. 　To solve this problem, the cooling tubes of the cooling system are placed above the bottom of the battery case. Please search for this technology in this contest. <Deadline> The search project needs to be completed within 3 days. <Requirements for Payment> ・List ...

...Technology Description section below. <Technology Description> 　This technology is designed to prevent charging from starting when the charging plug is connected to one of the charging inlets in a vehicle with two charging inlets and the lid of the other charging inlet is open. 　One of the problems with vehicles with two charging inlets is that when the charging plug is connected to one charging inlet and the lid of the other charging inlet is open, the terminals of this other charging inlet may become high voltage. 　To solve this problem, in a vehicle with two charging inlets, when the charging plug is connected to one charging inlet and the lid of the other charging inlet is open, ...

...indicate one of the battery degradation states and the battery charge state, and the size of the icon to indicate the other of the battery degradation states and the battery charge state. 　One of the problems with displaying the battery degradation state is that the user may confuse the battery charge state with the battery degradation state when the battery degradation state and the battery charge state are displayed on the same screen. NOTE: When the fully charged state is set at 100%, the battery charge state indicates the current charge percentage. Batteries degrade over time. The degradation state of a battery indicates the degree to which the battery has degraded. 　To solve this problem, thi...

I am looking for an expert to help design a power MOSFET with a target power rating of less than 100W. This design will be used for battery charge and discharge applications with a voltage rating of less than 100V. The successful applicant will need to have a strong knowledge and experience in power MOSFET design, as well as experience or knowledge in switching power supplies, motor control, and audio amplifiers. The finished design must meet all requirements specified, including high performance, low cost, and reliable operation. Require n-channel MOSFET to discharge, n or p channel to charge, input voltages to MOSFETs BNC +5V, need large screw terminals to connect to off board components.

Are you looking for an experienced freelancer to create a simulation of an EV charging station? I need a simulation that incorporates both a visual representation and data analysis. Specifically, I am looking for the simulation to be built in MATLAB, with a basic overview level of detail. If this project intrigues you, do contact me. I am open to suggestions on how to achieve the desired outcome. I am looking forward to collaborating with you!

...Conditioning) systems in buildings. Robotics and Automation: Work on the design and development of robotic systems for various applications, from manufacturing to healthcare. Aerospace and Defense: Be part of the teams designing and maintaining complex aircraft and defense systems, which require a mix of mechanical and electrical engineering skills. Electronics and Circuit Design: Focus on circuit design, PCB (Printed Circuit Board) layout, and electronic component selection. CAD and BIM (Building Information Modeling) Specialist: Specialize in CAD software and BIM tools for architectural and construction projects. Consulting: Offer your expertise as a consultant to various industries, helping them with engineering design, CAD modeling, and system optimization....

...is present, adding depth and subtly acknowledging the foundational technology. You don’t have to use the OpenAI logo exactly, but something to the effect that this is about OpenAI / ChatGPT Transition to Digital Nature: The OpenAI watermark and introductory text fade, giving way to the visual of a tall, majestic tree. This isn't any ordinary tree; its bark has the intricate texture of a digital circuit board, weaving together themes of technology and organic growth. One leaf begins to grow, and the camera should zoom in on the leaf. Digital Leaf Descent: A leaf, echoing the shape of your logo, detaches from the digital-nature tree. As it embarks on its descent, it transitions, gradually morphing from its tree-born form into the distinct colors and design of your logo, ...

I am looking for a skilled web developer to create a mobile repairing website. The website will offer a range of services including screen replacement, battery replacement, and water damage repair. Design: - I have a specific design in mind for the website. Key Features: - The website should include an online booking system to allow customers to easily schedule appointments. Ideal Skills and Experience: - Proficiency in web development and design - Experience in creating online booking systems - Knowledge of mobile repairing services - Ability to bring the design concept to life - Attention to detail and ability to create a user-friendly interface - Strong communication skills to understand and implement client requirements.

I am looking for an experienced engineer to design and manufacture a small printed circuit board (PCB) for an ESP32 microcontroller of size less than 5cm x 5cm. I have some ideas for the layout but am open to suggestions from the engineer to ensure my desired results. The PCB will be used for consumer electronics applications.

I am looking for a freelancer who...the specific area of physics and battery. Expectation : -> To calculate the electrical power /electrical energy required to stop a car with a certian mass & maximum speed -> Based on the Electrical power /energy dimension a battery. -> explanation on monitoring of state of battery Inputs : -> Mass of the car -> speed of the car -> deceleration of the car Don't need to perform complicated calculations. Need support to identify the basic formulas and do Excel calculations Ideal Skills and Experience: - Strong background in physics, particularly in the field of mechanical power and energy calculations - Proficiency in using various equations and methods for calculating mechanical power and energy - B...