Charger circuit designlavori
I have 20 off Monocrystalline solar panels each of 50 volts 7.5 Amp hrs and want to establish the best circuit diagram for the system. I also have an APC UPS Galaxy 3,500 which is 3 phase in and single phase out (240v) It also has a single phase bypass output. You should be an expert industrial electrical engineer as the grid needs to approve your design. Regards John
I need someone to create reduction from Circuit Value Problem (cvp) to Context Free Grammar Membership problem.
Films were scanned into jpeg images that need to be vectorized into .DXF Format for use in circuit board redraw
Hello developers Request details We have developed an AC charger based on OpenEVSE. We would like to add ISO 15118 (specifically plug'n'charge and SoC reading) to the existing board. Will discuss more details in chat.
I have a JPG image of the top of a small circuit board. I was wondering if someone could create Gerber files out of these so the pcb can be manufactured, thanks The file is attached bellow.
If you are an expert in using Coolspice and know a lot about MOSFET circuits, please directly send me a message ASAP
This project is a time sensitive placement test creating a circuit or two for one hour staring 9 am Malaysia time 2 December
We need an electronic circuit that can convert AC signal into a train of pulses of 250 V (offload). The output voltage should not be less than 200 V while on-load (short circuit) condition. the shape and duty cycle of pulses is shown in figure attached.
You must have the experience, knowledge and capacity to design and develop a multichannel Functional Electrical Stimulation hardware and multichannel EMG sensing circuit. You will also have to integrate diverse sensors and design communication protocols. You must have proven experience on working with AI on the edge.
I need someone to create reduction from Circuit Value Problem (cvp) to Context Free Grammar Membership problem.
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Need help with designing a linear circuit for a sensor to detect the presence of an approaching object such as an LDR and an OP-Amps circuit to switch on LED upon detection
I have done three year diploma in Electronics. And lots of small projects made at home like Amplifier, Night circuit, Security Alarm and many more.
This task involves choosing a chipset for a required circuit, creating the circuit and pcb design
Need to code in C++ for Circuit in Electronics.
Bayfield Learning is an online tutoring and learning company. We offer K-12 tutoring across all subjects, test prep (e.g. SAT, ACT, GED, GRE, etc), English as a Second Language...a symbol of learning. However this is a digital brand so a book might not be the best representation. A possibility is a lighthouse which evokes helpfulness and providing direction. On the other hand a lighthouse is a bit old school and can also evoke strong intimidating feelings. A light to lead the way is a possibility. Also maybe something to evoke a modern, digital approach such as a circuit. Maybe a screen / monitor. Maybe a Play button. Desired color is something like royal blue. We want it to evoke feelings of helpfulness and maturity (i.e. not baby blue) while not creating a feeling of int...
The entire description of the project is in the file below Circuit modeling in
Need a plc programmer to program water heating and spray system. Control heating element with PWM and SSR. The system includes a disconnect, circuit breaker, indicator lights, temperature display, solenoid valve, level sensor, and (2) RTD temp sensors. Thank you for your interest in this project.
I’m looking forward to design a robust AC input filter for HiLink AC DC converter in which an AVR project is running. And I would like to add some prime features like inrush current protection, AC line transients / spike protection as well as inductive load back EMF protection which may sometimes reset the microcontroller. Please note we have only phase and neutral, so earth connection for the filter circuit. Please find the attached file of the proposed project.
To make a Gerber file for PCB production. Build list and circuit provided. Please understand the circuit and what it does before bidding. Thank you. Peter
Hello. I need a circuit and pcb designed. It is for automotive applications so will need to run off 12v but be able to handle spikes of up to 15v. The circuit will be trigger by a reed switch and active an LED. Both the reed switch and led wont be mounted on the PCB. The pcb will need to be a 55mm circle with two cutouts. I can send 3d file of the placement area. I would also like a second design made that functions the same but has Bluetooth that can talk to a phone for signalling
I would like to build custom R/C cars of different sizes (1:32 scale, 1:16 scale, etc.). The car will have a chassis, 4 wheels, motors, R/C circuit and electro-magnets to pull another dye-cast car (without a motor) along with it as shown in the video. The cars should be able to make left/right turns, move in forward and backward directions, climb and descent slopes (15 - 20 degree angle) together without loosing their coupling. The dye-cast car above the surface can be any off-the-shelf standard hot-wheels or matchbox (1:32 or 1:16) toy cars. I will bear expenses for all the parts and shipping that would be needed for completion of this project, the bidder should bid only their service costs. The project will be marked as complete once I see the prototype demo and the prototype is s...
Design PCB layout for small device. Features list: USB connector to charge battery. Charging circuit to charge battery. On/off button Drive LEDs for 5-10 minutes
Project to be done in VHDL, so I am looking for an expert. The objective is to create a testbench for one circuit, and simulate the a few operations including storing data in it as well as retrieving data from it. I can share more details in PM.
We'd like to create a logo for a new product range that we are launching. The product range is electronics based (technical customers) and is called "Lemon IoT" ecosystem. We're after a simple logo that we can use in our branding but also will be on our Printed Circuit Boards (PCB), so will need to be simple. We expect a "lemon" to be in the logo.
Hi there, My name is Harsha, I am trying to build a project which involves driving 3 stepper motors inputs using raspberry pi 4. The problem is the entire circuit is supposed to be compact. Drivers used can be drv8825/ a4988/ trinamic TMC2208. The steppers are supposed to run smooth. Thank you, Harsha
Hello, we need a 240V outlet to be installed in the garage so that we can plug in a level 2 electric vehicle charger. Our electrical box is 200 Amps with six available slots. The basement is unfinished and it's about 35 feet from the box to the garage wall, which is attached to the house. The make of the panel is Siemens EQ Loadcentre.
Project to be done in VHDL, so I am looking for an expert. The objective is to create a testbench for one circuit, and simulate the a few operations including storing data in it as well as retrieving data from it. I can share more details in PM.
Microcontroller is considered as the backbone of Embedded System& it's most important feature is: "It can think". A Microcontroller looks like a simple electronics chip, but in actual its too powerful (also called Embedded Computer) because its programmable. Using programming code, we can control all I/O pins of a...multiple functions. Before microcontrollers, DLD gates were used to create logics i.e. adding delays, turning signals ON/OFF etc. DLD is still in practice for small projects but if you are working on big industrial projects, then DLD circuits become too messy & thus too difficult to handle. In below figure, I have added two circuits of traffic signal lights: Left Circuit: 555 Timer is used for creating the LED sequences. Right Circuit: Micro...
Add a second RJ45 port with passive connection to first RJ45 port. Add protective voltage circuit against cat5 miswiring. Add labels and logo to PCB.
Need to program a controller chip used in inverter ac. I can provide you an original programmed chip from the original circuit board. need to extract a program from there and burn the same program in a new same chip available in the market. Must have expertise in firmware programming
Looking for a PCB layout person who used Eagle. The project has around 70 parts ICs VQFN, TSSOP, 0805, 0603 sizes. The key element is the USB charger bq25606. PCB material is FR4 74x85 mm, 62 mil sickness with a custom shape. It is a hole for a special coil 28x24.5 mm. The number of layers is 4 (or 2). We will provide details for the right candidate. Please, quote (time-budget) for the immediate start this project.
Looking for a PCB layout person who used Eagle. The project has around 70 parts ICs VQFN, TSSOP, 0805, 0603 sizes. The key element is the USB charger bq25606. PCB material is FR4 74x85 mm, 62 mil sickness with a custom shape. It is a hole for a special coil 28x24.5 mm. The number of layers is 4 (or 2). We will provide details for the right candidate. Please, quote (time-budget) for the immediate start this project.
A hardware development is required. Sensor used for input: piezoelectric Microcontroller used to receive the amplified sound: ESP32. Output voltage range: 0-3.3V. Midpoint Bias near V=1.65V Operational Amplifier model: we will define it before start the project. Battery used: 1x3.7V or 1x9V Software to use: KiCad. Any other software for simulate it (for example LTspice).
...with their outputs combined. Each individual PSU must deliver the design voltage @ 10A continuously and with short bursts @15A and current cut-off @ 20A PSU based on LM5116 reference design Output files in Altium format Requirements Input voltage 13.5V - 60.0V Supply from two input sources. Inputs must be isolated. Supply voltage from input 1 must NOT flow out input 2 Output voltages options – each output consist of one Molex P6 5.3v 2x Molex P6 + 1x Molex P4 Fan connector (three individual PSUs combined) 7.4v 2x Molex P6 (three individual PSUs combined) 12v 2x Molex P6 (three individual PSUs combined) 24v 1x Molex P6 (three individual PSUs combined) Dual (redundant) 100V linear voltage regulators for FET driver and digital circuit per PSU. The power supply (e...
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As per our discussion, I will search for the components and will do the required changes.
We are in a tender process where we need to present the following - Drawing of cable route design including different trench design (PDF, DWG) - Short circuit calculations - Loss calculations We need to present to our end client that we have calculated that the cable dimensions is OK. We have the following information that we will share with you: - DWG files for the windfarm and cable network - We have data for the connection points (switchgear, turbines etc) - We have a draft of a SLD - We have cable lengts for each cable from point X to point Y
Need an existing PCB reversed engineered. This PCB is .031” thick FR-4, double-sided, 1 oz. copper, ENIG. Overall size is 2.200...reversed engineered. This PCB is .031” thick FR-4, double-sided, 1 oz. copper, ENIG. Overall size is 2.200” x 2.353”. All holes are plated-thru; 16x 0.019” diameter, 13x 0.047” diameter, 2x 0.070” diameter. Green soldermask is required on both sides. No silkscreen is required. All board tolerances to be +/- 0.005”, except for the holes, which need a tolerance of +/- 0.002” diameter. The circuit layout is to be identical to the existing PCB shown in the front view photo and back view photo. We need all Gerber files and FAB files provided to us in order to have our PCB manufacturer produce this ...
help required to repair computer motherboards and electronic device printed circuit boards
Using the fixed point arithmetic measure current according to the following circuit
We are a manufacturer of Printed Circuit Board Assemblies located in New York State. Currently, we are posting a blog post to our website and LinkedIn pages every other week. A much paired down version of that blog goes out in a mass email to our contact list as well during the "off weeks", with links to the blog and our website. This is done through our CRM software and something that we would like our freelancer candidate to handle in addition to article writing. We, the company, currently create the blog topics and for each one, source supplemental article(s) to aid in the writing process. The topics are often technical in nature so it is extremely helpful to have those for our writer and makes life easier. Our current partner has website creation/coding experience a...
I need an over voltage protection circuit designed, which needs to cut off the input source when it reaches 59vdc. Max current of power circuit is 3amps. This is to protect the 12v and 5v power regulator circuits. During normal operation, the input source is between 40-59vdc. There are situations that arise where the input voltage may rise to 160vdc for about 3-4 seconds, hence the requirement of over voltage circuit to protect the regulators. The circuit must fit in an existing pcb design. Parts must be available in Jlcpcb. I want the circuit built and tested before payment
I would like to design a circuit that can read information from a CAN network then control two cooling fans speed to control temperature.
I'm looking for a circuit designer capable of creating a circuit to compensate for a --break-- of the 220v. The 220 volt arrives with an input of 2 milliseconds and then disconnects for 18 milliseconds. Is it possible to overcome? A 12 volt outlet would be good for us
...autodesk revit program to assist in designing electrical layouts. Automate redundant tasks and manage the design to eliminate errors. Program should link electrical items to rooms, automatically add outlets in rooms, spaced along room perimeter per user-set specifications (recognizing doors in room is a plus.) Program should link switches and lights/outlets together based on user selections, add wiring between linked items automatically. Be able to link lights and switches over multiple floor levels and automatically notate light/switch wiring when going to level above/below. Since lights and switches are linked, switch symbols should update to 3way, 4way... based on how many switches in circuit. Automatically place lights/fans in room, centered or arrayed if user specifie...
I should design circuit with feedback to stimulate a nerve.
An engineer designed a PCB based on the 6" eink / epaper HAT from waveshare, which that speaks to an IT8951 chip via SPI from a Raspberry Pi. However th...the 6" eink / epaper HAT from waveshare, which that speaks to an IT8951 chip via SPI from a Raspberry Pi. However the its not working. Using the Kicad files can you tell me what is wrong with my circuit? I had the PCB manufactured and assembled, but when trying to communicate with the chip over SPI it just hangs. When connecting with USB it is not recognised (unlike the waveshare HAT) How do I fix it/create a workaround? Points to note: > The code is fine because it works with the waveshare HAT > The circuit powers on and voltages are correct at the capacitors > HRDY was not included in the circuit...
PCB design. Brief attached. A complete set of gerber files, bom and pick and place details for manufacture required for completion; along with PDF schematics and a 3D rendering of the PCB. Any questions about files or the requirements please discuss BEFORE you place a bid: It is not for me to discuss this at the end of a project as part of a dispute. IF YOU BID IT MEANS YOU UNDERSTAND THE REQUIREMENT, HAVE NO QUESTIONS AND CAN PROVIDE ALL OF THE FILES REQUIRED FOR THE PRICE YOU HAVE OFFERED.
