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All JobsCircuit DesignPosted: Within 3 days

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Posted: Within 3 days
Fixed Price: Less than $500   |  Posted: 21 minutes ago  |  Ends: 14d, 23h  |   0 Proposals
I need an eagle PCB implementation of the following:   [obscured]  /lit/an/swra308a/swra308a.pdf The design should take in consideration the optimal antenna placement (one of chip-,wire-, pcb antenna) Please include in your proposal your relevant/prior experience. Information on how to test would be appreciated.
Category: Electrical       

u****mir
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| u****mir
|    United States
Fixed Price: Less than $500   |  Posted: 35 minutes ago  |  Ends: 14d, 23h  |   1 Proposal
Hello, This is Dinesh. I am Designing a Mini MIPS 32 bit RISC Processor Single Cycle and 5 Stage Pipelined. I need to check this code for Fibonacci series and Square Root which i am programming in QTSPIM so it will convert it into log file which is given as input to the code. So i want you to design the behavioral model of the code for Single Cycle and Pipelined. If you are interested in this i'll send you the set up files. I am going to test this code on FPGA. Regards, Dinesh
Category: Electrical       

d****asu
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| d****asu
|    Sweden
Fixed Price: Less than $500   |  Posted: 2h, 40m ago  |  Ends: 14d, 21h  |   3 Proposals
I'm in the process of designing an electrical circuit for my garage. I will need help with picking out components (5 ea) and making them work together for desired results (off the shelf parts preferably). It includes: 1. Battery (9V, 3V, or 1.5V) 2. LED light 3. Small solar panel (to keep the battery(s) charged). 4. LED (bright green, 2" in dia min) 5. PIR sensor (triggered by human presence) I have a basic schematic but it needs to be messaged with correct values and part #'s.
Category: Electrical       
Preferred Location: United States

b****obe
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| b****obe *
|    United States
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: 6h, 40m ago  |  Ends: 14d, 17h  |   6 Proposals
We are developing electronic products that we would like to have custom housing created for. Attached are two concept images. The housing would have two blank end panels to mount the connectors you see in the image. We would powder-coat the manufactured enclosure to suit each product. We are seeking, initially, rough estimates for: 1. Work-up of the design to a stage where we can pass the design/CAD files to a manufacturer. 2. Indicative cost of tooling for these products. 3. Indicative cost of manufactured enclosure. There are to be two enclosures of similar design: Small: 160x275x85 Approx. Large: 160x275x130 Approx. They are to be rated to IP67. There may be an internal mounting system for modules and circuit boards, but initially the main enclosure is being investigated. The custom manufacture is contingent upon this as being part of the feasibility study, so please provide estimates only at this stage. Thankyou, in advance, for your time. Joe
Category: Product Design       

j****_3d
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| j****_3d
|    Australia
Fixed Price: $500 - $1,000   |  Posted: 10h, 47m ago  |  Ends: 14d, 13h  |   0 Proposals
Making circuit schematics and prototype of the sensorless brushless BLDC motor controller intended to drive aircraft propulsion motor. This work will have potentially few phases of development. This phase requirement needs heavy experience with power analog electronics driving high voltage/high current MOSFETs. Overall controller requirements: - driving brushless sensorless BLDC type motors - number of poles : up to 24 - kV from 40 rpm/v (direct drive) to 115 rpm/v (with reduction gear) - max peak motor power 20KW - rotational speed up to 9,000RPM , this is mechanical rotational speed, electronic (waveform) speed 81,000 to 108,000 RPM or 1800 Hz - Working voltage 74v nominal 85v max - Maximum burst amperage to the motor 300Amps - Continuous working amperage 150Amps - Proper directional motor' startup is important to match the propeller. This controller should be built as customization of available MCU-based module from Texas Instruments - Motor Control Kit with InstaSPIN-FOC soft...
Category: Other - Engineering &...       
Preferred Location: North America

e****man
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| e****man
|    United States
Fixed Price: $50 - $100   |  Posted: 11h, 34m ago  |  Ends: 6d, 12h  |   6 Proposals
For this job, you will be required to answer all the PRE-LAB portion questions for each experiment by showing the work and calculations. You will then set up the answer in a properly formatted Data Sheet in a Microsoft Word .doc file of each laboratory experiment. Laboratory Experiments 1-3 have already been completed. You will only need to do the PRE-LAB for Experiments 4-10. To view the pre-lab questions, please check the file: "Electronics Lab Manual.pdf" View the EXAMPLE files to see how the work was done and how to set up properly. The only real work is completing the calculations and showing the work for the pre-lab questions. Skills required: Electronics, Circuitry, Knowledge of Components, etc. You may use circuit simulation software to check your work and build schematics, as well as taking screenshots of the schematics to include. For Micro-Cap 11:   [obscured]  -soft.com/download.shtm Compensation is negotiable.
Category: Electrical       

x****0mk
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| x****0mk
|    United States
Fixed Price: $1,000 - $5,000   |  Posted: 13h, 29m ago  |  Ends: 14d, 10h  |   9 Proposals
This is for a total of (2) circuit boards to be completed. This design is happening concurrently with the speaker cabinet design and will require collaboration unless one person / team bids both parts. The first board: - is approximately 3" square with a 7/8" hole in the center to clear the speaker magnet. The first circuit board shall contain: 1. An RF Receiver. 2. An approximately 2 Watt audio amplifier 3. A dual-pole audio filter to apply the proprietary sound curve (to be provided to the winning bidder). 4. Volume up and down buttons (brought to outside of cabinet, working with the cabinet designer). 5. Battery charging circuit for a battery capable of operating the speaker at a reasonable listening level for at least (4) hours on a single charge. 6. Connectors for speaker, battery and external battery charger. 7. Provision to turn unit on and off (brought to outside of cabinet, working with the cabinet designer). The second board: - should be smaller than (2")x(...
Category: Electrical       

R****ham
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| R****ham
|    United States
Fixed Price: $1,000 - $5,000   |  Posted: 13h, 36m ago  |  Ends: 14d, 10h  |   12 Proposals
Design a cube shaped speaker cabinet to be made from advanced plastic (ex. ABS). It shall look similar to the picture attached. This design is happening concurrently with the circuit board design and will require collaboration, unless one person / team bids both parts. 1. The design shall be 3D printable for prototyping. 2. The cabinet shall have a removable back. 3. Overall dimensions shall not exceed 3.5" on each side. 4. The cabinet shall house one Tectonic Elements HIBM36S05-8 2" square speaker or equivalent. 5. The cabinet shall house a circuit board that is approximately 3" square with a 7/8" hole in the center to "clear" the speaker magnet. The winning cabinet designer will work with the circuit board designer to finalize mounting details. 6. Volume up/down buttons shall be brought to outside of cabinet ? (See picture) 7. Provision to turn unit on and off shall be brought to outside of the cabinet. Details will be worked ou...
Category: 3D Modelling       

R****ham
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| R****ham
|    United States
Fixed Price: Less than $500   |  Posted: 21h, 38m ago  |  Ends: 14d, 2h  |   4 Proposals
I need to print a circuit for a new keyboard layout, to begin with... This should be very simple with the right equipment. I need two flexible sheets printed. I will put between them another sheet and when I press at specific locations, the top sheet will go through the middle sheet and connect with the bottom sheet, thus acting like a switch. The main requirement is that all connecting traces end up on a pin flap of specific size and specifications. Take a look at the picture. I want something like that, but with the keys rearranged. I will provide the rearrangement.
Category: Electrical       
Skills: Circuit Design       

s****sky
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| s****sky
|    Cyprus
Fixed Price: Less than $500   |  Posted: Jun 01, 2015  |  Ends: 13d, 22h  |   7 Proposals
Hello, Here is the premise of the design: - We have a project that opens and closes a gate using a 4" linear actuator. We need to be able to develop a circuit board that allows us to extend or retract the actuator using an NFC tag and and through a phone app.. - We will be providing the customer a phone app where they can enter in the Gate's ID and after they do that from their account on their app, it opens and closes the gate. - We will also be providing them the option to use a NFC tag to do the same. We are looking for someone who can design us a circuit board so that we can but the individual parts and build ourselves. Parts that I believe we will need: - Linear actuator to open and close the gate - battery source to power the device - NFC reader to read the NFC Tags - Wifi Module to connect to the internet to receive commands from the phone app Thanks
Category: Electrical       

H****s12
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| H****s12
|    United States
Hourly Rate: $15 - $20 / hr   |  Duration: Not Sure  |  Posted: May 31, 2015  |  Ends: 13d, 15h  |   9 Proposals
I need help designing a light switch that can be shut off from your phone. I'm not sure what the best bet is in the way of circuitry. The app will be very simple. It will be one switch that uses bluetooth to flip a switch to turn a motor on in the switch plate cover that will mechanically flip the switch. The electronics will be housed in a plastic switch plate cover. I would like to know what you think I could have the circuit produced for. Thanks!!
Category: Electrical       

P****nda
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| P****nda
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: May 31, 2015  |  Ends: 13d, 12h  |   12 Proposals
Seeking someone to design electronic circuit: RF to control audio signals. Do not need PCB designed. Just the electrical engineer to design the circuit. Should be familiar with: - DC circuits - audio circuits - audio amplifiers - RF and Bluetooth technologies
Category: Electrical       

b****eff
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| b****eff
|    Canada
Hourly Rate: Not Sure   |  Duration: Not Sure  |  Posted: May 31, 2015  |  Ends: 13d, 12h  |   10 Proposals
Hi, I have a mechanical engineering background and an idea for a device, but do not have experience designing electrical circuits or selecting components for low power usage. I need your help to select an actuator-battery system and design circuitry that minimizes cost, physical space, and energy usage. The essential function of this device is to move a small actuating arm a very small distance (~2mm) once every 5 minutes. The motion should be linear, so using either a micro-solenoid, or a motor with mechanical linkage would be appropriate. The device will be portable and battery powered, and be as small as physically possible, subject to cost and battery size constraints. Battery life should be long, similar to a wristwatch, if possible. I hope the device can be powered with a coin cell battery to minimize size and cost. The device needs some type of switch to turn it off when not in use. So I need your help to select: i) A low-cost actuator (solenoid, stepper motor, watch m...
Category: Electrical       

H****ons
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| H****ons
|    United States
Fixed Price: $500 - $1,000   |  Posted: May 31, 2015  |  Ends: 28d, 9h  |   5 Proposals
I am seeking an programmer to create a simple app and/or program a blue tooth SMD controller to becoming switchable through an existing Bluetooth switch app. I am working with already in production parts and need expert knowledge of PCB and SMD components to maximize efficiency of this battery operated patent pending project. I need a PCB design with Bluetooth, Lipocharger, Temp sensor, less than size of quarter to be powered by 3.7 V Lipobattery.
Category: Electrical       
Preferred Location: United States

s****abv
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| s****abv
|    United States
Fixed Price: Not Sure   |  Posted: May 30, 2015  |  Ends: 12d, 19h  |   8 Proposals
Looking for an electronics engineer to design a circuit that records HD video onto an SD card. Input: MIPI Camera Serial Interface-2 (CSI-2) camera 15 pin. Camera originally designed for Raspberry Pi 2. Encoding: 1080p H.264 Media: Records onto SD card Deliverable: Populated PCB, fully functional Specs: Must be very robust, able to record for up to 10 hours, with 99.99% reliability; fast boot up time Volume: 2 prototype units, production of 1000-3000 Encryption: 128 bit encryption of the recorded video "at-rest" If interested, will elaborate on detail, but please provide a rough estimate on price and time, as well as the development platform/ processor you'd likely use.
Category: Electrical       

D****en5
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| D****en5
|    United States
Fixed Price: Not Sure   |  Posted: May 30, 2015  |  Ends: 12d, 1h  |   2 Proposals
We are looking for someone to design a simple satellite receiver circuit. This would be used for obtaining audio only from FTA satellite transmissions. The output from the LNB would connect to this circuit and the output from the circuit would be a two channel analog audio signal for passing to an amplifier. The circuit would hence include satellite tuner, qpsk demodulator, and mpeg-ts decoder. Selection of the desired frequency would be via microprocessor. The deliverables would be: - A schematic of the circuit. - C++ program for controlling the circuit for the specified microprocessor.
Category: Electrical       

Y****ber
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| Y****ber
|    South Africa
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