Battery switchover circuitprojekty
This project is for designing a new pcb in which the main purpose is filtering magnetic interference. Project Includes Schematic Design, PCB Design, BOM Validation, Gerber Production etc.
I'm looking for support on a project that involves an electronic smd concept. The intended purpose is prototyping and I am open to a mix of suggestions on components and specifications as well as ones that I provide. The desired level of complexity for this project is simple. I want to know about specific components , the working and output - LDO fixed output - mosfets - BJT - latch circuit discussion
I need help for a task related to Digital System Design, digital circuit design
...downhill freaks. There is a huge interest from downhill riders and they all waiting for release of the machine soon. Red Bull in Austria forecasting an enormous potential as the movement is identical to snowboarding but in summer times. Truly exclusive! And finally the Wheelman-e, integrated electric direct drive including brakes will be the ultimate machine. Up-hill and Down-hill with recuperation (battery recharge) system in place, all build on the same base design. Simply and truly a new invention and exclusive business adventure on global scale. All three designs are based on one platform design, just different or additional parts are used to manufacture the right design for the right application. There is much more to talk about the Wheelman Project but at this stage I woul...
I am looking for a freelancer who can help me with my project to program and create a circuit diagram for a servo motor with an industrial PLC. The following are the details of my project: Required Torque: Less than 10Nm PLC System: Any Low cost will do HMI Touch screen type & Proximity Sensor for feedback to Servo. The servo should rotate a specific degree when a metal is detected by a proximity sensor. Circuit Diagram: The freelancer will need to create one & also advice on which model to buy. Ideal Skills and Experience: - Experience with programming servo motors and industrial PLCs - Knowledge of circuit diagram creation - Familiarity with Low-cost PLC systems I am looking for someone who can get the job done efficiently and effectively. If you have ...
As a knowledgeable and experienced electrical contractor, I am seeking assistance with the development of wiring diagrams for an industrial project. In order to ensure the highest quality of work, I am specifically looking for diagrams which include schematic diagrams, wiring diagrams, panel layouts and circuit diagrams specifically created for this project. I have a clear idea of the intended application of these diagrams and know exactly what needs to be done. As such, I am confident that any qualified professional who is hired for this project will be able to produce the work efficiently and accurately. If you believe that you have the expertise and knowledge necessary to complete this project, I am eager to hear from you.
Deliverables : 01 - Lighting Layout 02- Power Layout 03 - Cable Tray Layout 04- Telecom & Data Layout 05 - Fire Alarm Layout 06-Power SLD Calculations 07- Cable size, Panel Size & Circuit Breaker Schedule 08 - Lighting and Control
I am looking for a developer to create a 2 digit calculator for me that performs only addition. The maximum number of digits for each operand should be 2. The calculator should be developed using the multisim software. Construct the circuit for each block in the system. Design and simulate the system using SUBCIRCUIT in MULTISIM software. Ideal skills and experience for this job include: - Experience with multisim platform development - Strong understanding of addition calculations - Attention to detail to ensure accurate results - Ability to create a user-friendly interface for the calculator
Fire Alarm Repair Needed for Conventional System I am in need of a fire alarm repair for my conventional system. Specifically, the sounder circuit needs resistors added to bring it down to 5 ohms or less. Ideal Skills and Experience: - Experienced fire alarm technician - Knowledge of conventional systems - Ability to troubleshoot and repair sounder circuits Deadline: The repair needs to be completed within two weeks.
When a pushbutton is pressed the circuit should activate two DC micro motors to run for around 3 minutes. This timing should be tunable via a variable resistor. This system should run on one rechargeable battery, so the circuit should also be able to charge this battery via usb. Motor specifications are: Rated voltage 3.4 V, Rated Current 750 mA. More info found here: Battery specifications are: Capacity 450mAh, operating voltage 3.8V, C-rate 30C. More info found here:
Create a report and subsequent Dashboard from Excel files that shows the following: Consumption Total Household or business consumption (kWh and $$) Household or business consumption per circuit (kWh and $$) Solar Production Total Solar produced (kWh) Total Solar consumed (kWh) Total Solar exported (kWh) Comparisons- Solar Production estimate vs actuals Compare the above data vs system modeled data (what the system should produce in theory) in both kWh and $$ Hourly Daily Monthly Quarterly Yearly Create a template and dashboard that can have changing inputs to allow for: Cost of capital Changes in electricity costs/prices Inflation assumptions
I'm looking for a freelancer who can help me build an electronic hookah heater that maintains a temperature in the range of 300 to 400°C. It should be powered by a battery and should have a compact and portable design. The technical task is already there. If you have experience in building such products, I'd love to hear from you. Thanks!
...of a device which drives an LED, which is connected to the device with a short cable. The LED is driven with short constant-current pulses. V3 defines the current, the ADG719 creates the pulses and the ADA4891 regulates the current over the LED. All of this is pretty simple. The problem arises, when the LED is connected to the circuit with a ribbon cable, as shown in the spice schematic. The current over the LED starts to ring / overshoot. Design a filter circuit, preferably internal of the device - or with as little as possible components at the end of the cable (=beside the LED) to suppress the overshoot / ringing as much as possible and at all the given levels of V3. The filter should preferably be passive and as simple as possible. I would like to check the spice ...
I am looking for a Lithium-ion battery with high capacity (51+ kWh) for my hybrid vehicle. The primary purpose of the battery is to power the vehicle. The ideal freelancer for this project would have experience in designing and building high-capacity Lithium-ion batteries for hybrid vehicles. They should also have knowledge of the necessary safety measures and regulations for battery design and installation. Additional skills in electrical engineering and automotive technology would be a plus.
We have designed a rudimentary concept for a new product, and we require our basic design ideas developed into a 3D render that shows the external arrangement and perhaps one or two internal images
...players in the renewable energy sector, including their business models, technologies, and market share. * Investigate the best know-how and technological advancements of each company in terms of renewable energy solutions. * Assess the competitive landscape and market positioning of the identified companies. * Research and identify the top 20 leader companies for the following products: Li-ion Battery, Energy Storage, Inverters, Directional Drilling Equipment, Offshore Support Vessels (OSV's), Drilling Chemicals, Specialty Coatings, Specialty Chemicals, Electrolyzer, and Drill Collar. * Collect and analyze data on the products, services, and innovations offered by the leading renewable energy companies. * Prepare detailed reports highlighting the strengths, weaknesses, oppo...
...information about the product. Details to include: Front of Box: Slogan: Warm up your Life! Brand-Logo (Maybe Product-picture) Side of Box - (these can be written in text or graphically implemented) Size-tiers: "S / M / L"; Int. Hand-Size 7 / 8 / 9 Heating Levels: RED 55°C / WHITE 50°C / BLUE 45°C Heating Time: RED ~ 4 hours / White ~ 5 hours / Blue ~ 6 hours Color: Black Material: 100% Polyester Battery: 2x 6000 mAh Extras: 2x Spare removable sparecable (Maybe Product-picture) Back of Box: EAN-Barcode CE (ce-marking) RoHS (rohs-marking) "UVP: 124,95 €" "Manufactured for: Injoy Handels GmbH, Lydiastraße 1, 22041 Hamburg, Germany" Box Size 31 cm x 13,5 cm x 8 cm I added some more reference packaging designs that reflect th...
I am seeking a skilled freelancer to design and build an SMPS power supply to meet my speci...be knowledgeable in SMPS topology. The project details are as follows: Input Voltage: 85~264 VA.C. Variable Output Voltage: 8 V D.C. to 17.5V D.C. Output Current: 10Amp. and 15 Amp. SMPS Topology: I am open to any topology, but cost-effectiveness is a priority. Additional requirements: - Output voltage varies through Potentiometer. - Current limit protection required. - Over load and short circuit protection. - The power supply should be efficient and reliable. - The design should be compact and space-saving. - The freelancer should be able to provide a detailed schematic, bill of materials Layout Design. If you have the necessary skills and experience, please submit a proposal for thi...
I am looking for an experienced electronic engineer to help me with my project. The main objective is to c...electronic engineer to help me with my project. The main objective is to create a PCB schematic and layout design. The size of the PCB will be determined by the expert based on the requirements of the project. I have a the design of the circuit design, but I need someone to help me refine it and create a detailed design. The PCB will include a microcontroller, and other components such as power supply, etc. The ideal candidate should have experience in PCB design and be able to provide a detailed schematic and layout. Knowledge of microcontrollers and circuit design is a must. The ability to troubleshoot and solve problems that may arise during the design process i...
Experiment 7 is a design experiment. In design experiment, students have to complete the following steps. prepare a lab sheet for the selected topic (voltage divider or current divider circuit) write questions and put the table for measurements simulate your design on LTspice prepare your answer sheet, the measurement result will be taken from the program, the questions asked will be answered, calculation steps will be completed. Simulations results and calculation results will be compared
1. Consider the matching circuit in the figure below used to match an access transmission line with the characteristic impedance: ZC=50 Ohms to a load impedance: a) ZL= 20+j40 Ohms, b) ZL=20 Ohms, c) ZL=-40j Ohms. The circuit is working at a frequency f=2 GHz. Imposing a maximum magnitude for the reflection coefficient at the input |S11|=0.1, determine the bandwidth for each case. Discuss the results.
I am looking for a freelancer to create cable assembly drawings for about 10 different applications. The cables are manufactured using industrial grade cordage such as SJOOW 18/4 wire. Cables vary from 2 conductors to 14 conductors and use metal and plastic connectors from 2 contacts to 1...different applications. The cables are manufactured using industrial grade cordage such as SJOOW 18/4 wire. Cables vary from 2 conductors to 14 conductors and use metal and plastic connectors from 2 contacts to 14. The drawing needs to show colors of each wire and also include will include some text showing the manufacturer part numbers. U would provide very primitive drawings which I created using a circuit board layout CAD system - or hand sketches sent by email. The final drawing is to be in P...
I need you to answer the questions below with citations/references - Describe in detail how you tested all configurations with real practical tests and/or with your gathered information in the report. - Discuss the advantages an...need you to answer the questions below with citations/references - Describe in detail how you tested all configurations with real practical tests and/or with your gathered information in the report. - Discuss the advantages and disadvantages of firewalls with iptables and make suggestions to overcome the disadvantages in your report. - Discuss the roles and significance of packet filtering, circuit relay and application layer firewalls in building multilayer firewalls. Comment on how the use of multilayer firewalls impacts on the network traffic deliv...
I am looking for a skilled PCB Design Engineer to create a circuit board for my project. I have many project. The ideal candidate will have 5 years experience in PCB design and be able to complete the project within 1-2 weeks. Attention to detail and the ability to meet deadlines is crucial. Please include relevant experience and examples of previous projects in your proposal.
We have to build a project for which we need a PCB designer. We will provide you a circuit diagram and we want PCB Gerber files for that circuit.
A remote control which when clicks tells whe the RX is? Electrical, remote control, battery or charging ability
I'm looking for an electric head shaver that can provide me with the features that I need. Battery life is the most important feature for me, so I want something that will last a long time and won't need to be recharged often. I'm looking to stay within a budget of $50-$100, so anything that can meet that requirement would be ideal.
I am looking for a freelancer who can design and build a solar panel and battery system for my ESP32 board. The system should provide power in an outdoor environment. The voltage output of the solar panel and battery system should be custom, as specified in the project details. The battery should be able to provide power to the ESP32 board for up to 24-48 hours without solar charging. I have set up a network of esp32 boards. One of them works as the receiver - web server and the rest of them work as senders, all this happens under the ESP-Now protocol. The only thing that all this system does is the following: Each ESP32 sender has a momentary button. When you press it just for a while (around 1 sec), you wake the esp32 up, it sends a few data to the receiver a...
20 or 15 questions in 1 hours 1- BJT DC Analysis. 2- BJT AC Analysis. 3- OP-AMP. However, concepts such as Zener Diode, KCL, KVL, basic circuit concepts are still required. Regards.
I am looking for a freelancer who can provide me with ready Matla...the distribution system reliability. The evaluation should consider the integration of renewable energy sources such as solar (PV) and wind (WT) based DG units, along with any battery storage technology. Specific requirements for the evaluation method will be provided. The ideal candidate should have experience in Matlab programming and knowledge of distribution system reliability analysis. Key requirements for this project include: - Ready Matlab code for distribution system reliability evaluation - Integration of renewable energy sources such as solar (PV) and wind (WT) based DG units - Open to any battery storage technology - Experience in Matlab programming - Knowledge of distribution system rel...
I need help about my Electronis project which include MOSFET, BJT and JFET's (AC and DC Analysis). We will do the project on 12 June 2023. Project will include the detailed circuit review. Can you help me about it? Thanks in advance. Ideal Skills and Experience: - Strong knowledge and understanding of MOSFET transistors and circuit design - Experience in providing detailed technical assistance and guidance to clients - Familiarity with amplifier and switch design is a plus I look forward to working with a skilled and experienced freelancer who can help me achieve my goals and bring my electronics project to fruition.
...NEPLAN medium voltage network model for me. The main focus of the network model will be on protection coordination. We provide info on the network (substations, cable data, transformed data, etc) and Neplan 360 network license access and you need to model the network for Load Flow and Short circuits and help us with protection coordination. Previous demonstrable experience with NEPLAN and Short circuit / Load flow studies with protection coordination is necessary. The project will be hourly rate based, and you will besides modeling provide also consulting to us when and where needed. Skills and Experience: - Knowledge of NEPLAN software and its functionalities - Expertise in creating network models, specifically in the field of MV and HV networks, protection coordination ...
Looking for a freelancer to design a cell phone case with the following requirements: - The case should have a built-in GPS tracker to easily locate the phone if lost or stolen. - It should also have a battery pack to provide extra charge for the phone. - Protection is important, so the design should be sturdy and durable. - Aesthetics are also important, so the freelancer should have experience with creating visually appealing designs. - Please submit a detailed project proposal outlining your ideas and experience in creating phone cases with extra features.
Topics that we will focus on: 1- BJT DC Analysis. 2- BJT AC Analysis. 3- OP-AMP. However, concepts such as Zener Diode, KCL, KVL, and basic circuit concepts are still required. Regards.
We are a 22 years old electronics company. Looking for electronic engineers for reverse engineering and improvement of existing circuits. Freelancer should have deep knowledge of both analogue and digital electronics components and capability to trace the circuit diagram from existing PCB and then redesign the new PCB with improvements. Experienced electronics engineers with design & development background will be preferred. We have continuous work flow for 12 months. Our projects include LED based lighting system for critical application, power supply for LED lighting, various types of signal amplifiers, RF based circuits etc. admin@
...Project I am looking for a freelancer who can design and build a DC-DC boost converter to meet the following requirements: Input Voltage Range: 18-36V Desired Output Voltage: 180V regulated; adjustable between 50-180V through a 10K pot. Required Output Current: 1A-5A Ideal Skills and Experience: - Experience designing and building DC-DC boost converters - Knowledge of power electronics and circuit design - Proficiency with simulation software (e.g. LTSpice, Simulink) - Familiarity with components and materials used in power electronics The completed project should include: - Schematic and PCB design files - Bill of materials - Test results and performance data If you have the skills and experience required for this project, please submit a proposal with your approach and es...
Build 3 Refractometer Sensor Assemblies for our prototype. The sensor will be integrated with a PCB, which will have other sensors. The purpose of the sensor assembly is to converts the refractive index of a food sample to % brix. OUR SPECS are as follows: The sensor assembly - must not exceed 20mm x 25 mm x 15mm in size - CMOS or CCD sensor - Triangular pr...sensor - Triangular prism - LED wavelength of about 600nm OTHER SPECS - 0 - 20 degree brix minimum - Precision ±0.1%; - Resolution 0.05% - Output Method: Digital - Sensor assembly must be calibrated and fully tested for correct reading. Important: We only need the sensor assembly and a micro-controller. So the deliverables are: - Sensor assembly, - source files, - Gerber files, - firmware, - Circuit and - CAD files - ...
I am looking for a skilled freelancer to assist me with my personal project involving Ltspice Electrical simulation. The goal of this project is to simulate a specific circuit, and I am looking for someone who has experience in troubleshooting and designing new circuits as well.
I require a software writer who is very competent in “C”; works quickly and keeps in regular communication. I have a circuit board which has two processors; STM32F429 and a STM32L152. There are the usual control switches and a LCD screen. Basically the system generates a sinewave which is fed through a variable resistance circuit. The drop in amplitude of the sinewave is measured and recorded in a file. I have a bootstrap program that is written and stable and also several application programs. I need several additional programs written and some of the existing programs modified. There will be ongoing maintenance work and also an AI – machine learning – project if the freelancer is capable. I have the existing source code and notes plus correspondence...
I am looking for an expert in Matlab/Simulink who can assist me with an advanced modeling and simulation project in the electronics field. The ideal candidate should have experience in: - Advanced level Matlab/Simulink skills - Electronics and circuit design - Simulation and modeling of electronic systems The project will involve: - Developing and implementing advanced models and simulations using Matlab/Simulink - Analyzing and evaluating system performance - Troubleshooting and debugging issues as they arise If you have the required skills and experience, please feel free to submit a proposal and we can discuss the project further. Thank you.
Introducing the groundbreaking BrailleMobile, the mobile devic...services effortlessly. Furthermore, the BrailleMobile is compatible with popular accessibility applications, ensuring seamless integration with existing assistive technologies. Built with accessibility and inclusivity in mind, the BrailleMobile undergoes rigorous testing to meet the highest standards of quality and reliability. Its robust construction guarantees durability, while the long-lasting battery ensures uninterrupted usage throughout the day. Join us in revolutionizing mobile technology for the blind. Experience the future with the BrailleMobile and empower yourself or your loved ones to engage with digital content through the magic of touch. Embrace a new era of accessibility and independence with the Brai...
...NEPLAN medium voltage network model for me. The main focus of the network model will be on protection coordination. We provide info on the network (substations, cable data, transformed data, etc) and Neplan 360 network license access and you need to model the network for Load Flow and Short circuits and help us with protection coordination. Previous demonstrable experience with NEPLAN and Short circuit / Load flow studies with protection coordination is necessary. The project will be hourly rate based, and you will besides modeling provide also consulting to us when and where needed. Skills and Experience: - Knowledge of NEPLAN software and its functionalities - Expertise in creating network models, specifically in the field of MV and HV networks, protection coordination ...
...reliable electrical system that meets the operational needs of the facility. B. Present condition: Conduits are laid from main distribution panel to light / power points inside the warehouse. Need to plan for external lighting. C. SOW: Scope of work 1. Design of branch circuits to support lighting & power outlets. 2. Design of distribution system: Distribution panel, sub panel & associated circuit breakers 3. Sizing of main electrical wires from main distribution board to sub distribution board & lighting / power points. 4. Lighting system: Selection of appropriate lighting for internal and external illumination 5. Grounding: Planning of appropriate grounding location & solutions. 6. Electrical safety: Adherence to electrical safety regulations and code...
I have a completed Pcb design. I need to verify the design with the design of the lolin wroom32. We produced the design but they are telling me there is an upload problem. I need to find this problem on the design. It’s not complex it’s a d32 with some connectors added
ESP Master/Valve Driver Update: 1. Replace the 5v LDO to Buck converter. So we can provide 12v input power supply and convert it to 5v for ICs 2. We would like to connect pressure transmitter sensor with i/p ...of LEDs in master board 5. Sometimes ESP overheats with WiFi STA/AP mode. 6. Redesign existing Eagle project into Easy EDA 7. Provide adequate support for Firmware changes Slave/Wireless Pump Controller: 1. Handle ESP32 brownout/flicer scenarios when WiFi is turned On and sending HTTP request to master 2. Remove the 5V power supply to I2C FRC Connector. We may not need this anymore 3. Battery IC Overheating. Guess you suggested to change the resitor. 4. Replace unused sensor port with 12v Power rail. So we can connect Pressure sesnsor with I/P 10-30V and current outp...
...of the van with logos and and list of services above. We like the idea of the graphic going from the front wheel arch to the rear top corner (diagonally), covering the rear doors and back down the other side. No graphics on the roof. We like the bold colourful ones. The logo should say Nexus: Electrical & Solar Energy. The services we would like listing on the van are: Solar PV Installation, Battery Storage, Electrical Installations, EV Chargers, Electrical Testing, Fire Alarms & CCTV I would like an eye catching, professional looking van wrap design done for our company vehicles. The design must be unique, very professional looking, display our company logo, list our services and have contact details. I do not want it to be cluttered with text, must be bold and insta...
I am looking for a skilled freelancer who can modify the PCB design and firmware for my STM32 project. The following are the specific requirements for the job: PCB Design: - Component replacement needs to be modified. - The circuit layout and board size can remain the same. Firmware : - Make firmware run on the new PCB Timeline: - I need the project to be completed in 2 or 3 weeks. Ideal Skills and Experience: - Strong experience in PCB design and modification. - Proficient in firmware programming for STM32. - Knowledge of circuit layout and component placement. - Familiarity with bug fixing and feature addition in firmware. If you have the necessary skills and experience to complete this project, I look forward to hearing from you.
I need a background service application the can be installed on android device running android 10 and above that does the following : 1. Auto start at device start 2. Update device location to Google (maps/timeline etc) - will use it on Google timeline in another app 3. Continue to run service in background even when app/service is closed/killed 4. Have little ...top notifications bar to show service is running 5. If(whenever) GPS data is not available, restart device 6. Location update interval should be user configurable 7. If app/service is killed or crashes, should auto start again (goal is to have app running at all times and with valid GPS data being updated to Google.) 8. This app will be used in devices continously connected to a power supply so battery usage/drain is not a...
Broadcast Radio Engineer/Sound Engineer needed to change broadcasting name of Snetterton Circuit radio from BSB Radio to SNET FM. UK BASED ONLY. JOB IN NORWICH.
