Thiết kế vi mạch Công việc và cuộc thi

If you want an end to end outsourcing solution for all your projects relating to circuit designing, outsource the work or job at the world's best marketing resource online Freelancer.com and get the work done by the expert circuit designer freelancers. These freelancers work online from all across the world and can be helpful to you and your project. Freelance them the work to be done either on part time or full time basis and be assured of an optimum result. The job sphere may include PCB designing, PCB board circuit debugging, layout, schematic designing, MCS including the software design and the hardware design.

The freelancer circuit designer will be able to work on the PCB print circuit, half finished product design, finished product and also assemble them. Their other work expertise are high speed telecom, RF board, DSP, microcontroller control, signal board, circuit design and assembling, electronic items designing like toy, motor, electronic gifts, main board, security defend, Vidicon, USB, DVD etc. If you are a freelancer having adequate skill and experience in circuit designing, Ethernet, USB, electronics, networking, digital and such related fields, submit your bid in the Freelancer.com and get posted immediately.

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Dự án/Cuộc thi Mô tả Lượt đặt giá/Bài dự thi Kĩ năng Bắt đầu Kết thúc Giá (USD)
Electronic circuit PWM Analog Output I used the below circuit to generate high current analog output (0-10V) from PWM input by changing the duty cycle of the PWM. It works well when I use 5V PWM that comes from Atmega8 microcontroller. See Drawing One However, using the same circuit with 3.3V PWM that comes from ESP8266, it does NOT work. It gives only 2V output. See Drawing Two Could you please make similar board in your bench... 7 Kĩ thuật, Điện tử, Vi điều khiển, Kĩ thuật điện, Thiết kế vi mạch Jun 24, 2018 Hôm nay6n 23g $17
not sure but think building RISC in program called logisim sorry I have no idea about this project so please read the file in the attachment 5 Điện tử, Verilog / VHDL, Vi điều khiển, Kĩ thuật điện, Thiết kế vi mạch Jun 24, 2018 Hôm nay6n 21g $157
Kĩ thuật điện, PCB Layout, Thiết kế vi mạch Jun 23, 2018 Hôm nay6n 2g
Boost converter and power charging module design Required is a boost converter & battery charging circuit design. Fabrication of the module is not required. Subject to the specifications below, required for delivery is: - circuit board BOM (incl manufacturer part numbers) - design files (preferably EasyEDA, but Kicad, Eagle or Altium OK) - detailed description of circuit operation Specifications: - 2.7-5v input - 12v, 1A output - 2.5cm/1&q... 25 Điện tử, Kĩ thuật điện, PCB Layout, Thiết kế sản phẩm, Thiết kế vi mạch Jun 23, 2018 Hôm nay6n $394
(Power Supply) AC-DC Converter design on commercial level Hi there! I need an experienced employee who worked before in a power supply manufacturer company as R&D (designer) to design for me a full series of (Power Supply) AC-DC Converter. The designs needs to fulfill the international standards and should be implementable on commercial level. The prices below are just for one design. We will need many designs if the first one works well. Abda... 23 Điện tử, Kĩ thuật điện, PCB Layout, Thiết kế sản phẩm, Thiết kế vi mạch Jun 23, 2018 Jun 23, 20185n 23g $319
designing ultrasonic transmitter and receiver to design the electronics to generate ultrasonic carrier wave (anything in MHz range) modulated with a very low frequency wave (say 4.4Hz) and a separate receiver to receive demodulate and filter out the modulating signal (the low frequecy 4.4hz signal) in it. 5 Kĩ thuật, Điện tử, Vi điều khiển, Kĩ thuật điện, Thiết kế vi mạch Jun 23, 2018 Jun 23, 20185n 19g $117
PCB design in Altium hi I need a PCB design done in altium designer . People having expertise should contact asap. It will follow with more work Regards 40 Điện tử, Kĩ thuật điện, PCB Layout, Thiết kế vi mạch Jun 22, 2018 Jun 22, 20185n 6g $163
electronic engineer Electronic Engineer able to build and explain some circuit diagrams of jammers and low radio frequencies 20 Kĩ thuật, Điện tử, Kĩ thuật điện, PCB Layout, Thiết kế vi mạch Jun 22, 2018 Jun 22, 20185n 6g $31
PCB Re-Design I have a tested PCB design, I simply need the design to be more space efficient. It drops the DC voltage from a battery network down to a lower voltage and uses an external 12VDC signal to trigger a relay to fire the shunt coil on an MCCB using the battery voltage as it's supply. The OHM and wattage of the resistors mounted externally can be selected to allow the PCB to work with different ... 38 Điện tử, Vi điều khiển, Kĩ thuật điện, PCB Layout, Thiết kế vi mạch Jun 22, 2018 Jun 22, 20184n 22g $208
build electronic system we are looking for freelancer for build electronic system HWSW description will be delivered in conversation in PV 17 Điện tử, Thiết kế vi mạch Jun 22, 2018 Jun 22, 20184n 21g $22
Design a new battery item I need a electrical engineer to help design a solar battery and wind generated power to grid system... Its an idea that I have using several potential items already on the market, but with a difference. lets discuss your involvement as you need to sign a NDA and NON COMPETE agreement. 6 Kĩ thuật điện, Thiết kế vi mạch Jun 21, 2018 Jun 21, 20183n 21g $68
pcb reverse engineering i have at hand several pcb, all components already removed and scanned at printer i need someone who can re-design pcb %95 must be look same for more detail contact with me 28 Điện tử, Vi điều khiển, Kĩ thuật điện, PCB Layout, Thiết kế vi mạch Jun 20, 2018 Jun 20, 20183n 13g $41
Electrical Engineer(High Voltage 10-20Kv System) We Require engineer that knows about high voltage 10-20kv. need validation and schematic I ordered the parts to do a test circuit ASAP looks like the Opto can be driven with 5vdc pulse 11 Kĩ thuật, Điện tử, Kĩ thuật điện, PCB Layout, Thiết kế vi mạch Jun 20, 2018 Jun 20, 20183n 12g $12
Need help with simple photodiode circuit We have the circuit show in this article [login to view URL] The photodiode is the Digikey model 1125-106ND The JFET OPAMP is the AD820ANZ. Capacitance and resistance are shown in the diagrams. Problem The system is too sensitive, in full light, the output signal is saturated. Question What to add in the editing to decrease its sensitivity? 11 Kĩ thuật, Điện tử, Vi điều khiển, Kĩ thuật điện, Thiết kế vi mạch Jun 20, 2018 Jun 20, 20183n 8g $18
expert in motor control needed Motor control expert needed preferably an electrical engineer 32 Kĩ thuật, Điện tử, Kĩ thuật điện, PCB Layout, Thiết kế vi mạch Jun 20, 2018 Jun 20, 20183n 3g $377
Need VFD Expert for 3 Phase I need an electronic expert for coding and designing for 3 phase VFD for Induction motor. more details in chat please only bid if you have experience in this field. thanks 11 Kĩ thuật, Điện tử, Vi điều khiển, Kĩ thuật điện, Thiết kế vi mạch Jun 20, 2018 Jun 20, 20183n 2g $19
Development of circuit diagram and PCB design using KiCad We are developing LCD display for our application, Basic concept and major component selection is done by inhouse team in order to expedite project we are looking for developer who will design circuit based on our brief and later design PCB for the same circuit for next stage.. PCB design has to be on KiCad 12 Điện tử, Vi điều khiển, Kiến trúc phần mềm, PCB Layout, Thiết kế vi mạch Jun 20, 2018 Jun 20, 20182n 18g $133
I need a circuit designer who can also build 2 prototype for me I need to create a design with a raspberry pi powered by Lipo battery with charging option(like in Mobiles) and have 4 microphone array and 3W speaker. The whole design need to be in a box with provision for charging, slot for microphone and speaker as well have a button to switch on/off the system 8 Thiết kế vi mạch Jun 20, 2018 Jun 20, 20182n 17g $475
PCB Designer I need an Altium PCB Designer for a small task. 42 Điện tử, Vi điều khiển, Kĩ thuật điện, PCB Layout, Thiết kế vi mạch Jun 20, 2018 Jun 20, 20182n 16g $10
device engineer we need device engineer freelancers. you have to know about PCB. 24 Điện tử, Vi điều khiển, Kĩ thuật điện, PCB Layout, Thiết kế vi mạch Jun 20, 2018 Jun 20, 20182n 16g $20
Design a PCB for my Solar Project Hello - I need to make a PCB that will have a total of 8 Solid State SPST relays, an Ardiuno nano (or similar functionality since I'm only using the digital pin functionality), 4 LEDs, and sturdy mounting connectors for a wiring harness to connect the following: Solar Power Wires, Lithium Ion 18650 Battery stack, Solar Battery Charger, Car Battery Charger, Wall Battery Charger. You could bui... 34 Điện tử, Kĩ thuật điện, PCB Layout, Thiết kế sản phẩm, Thiết kế vi mạch Jun 19, 2018 Jun 19, 20182n 16g $475
Calibrate 7 energy meters by wiring up at a high consumption cable CALIBRATE 7 ENERGY METERS We have 7 pcs of energy meters, type EH10-DIN Carlo Gavazzi . The 7 energy meters need to be calibrated. Not via electronic programming, but by wiring up at a high consumption cable. The readings need to be higher then they are now. The maximum which needs to be added is +- 20 000 kWh. The various 7 meters need different readings (which we will inform in detail)... 3 Kĩ thuật, Điện tử, Kĩ thuật cơ khí, Kĩ thuật điện, Thiết kế vi mạch Jun 19, 2018 Jun 19, 20182n 15g $19
Design a PCB for my Solar Project Hello - I need to make a PCB that will have a total of 8 Solid State SPST relays, an Ardiuno nano (or similar functionality since I'm only using the digital pin functionality), 4 LEDs, and sturdy mounting connectors for a wiring harness to connect the following: Solar Power Wires, Lithium Ion 18650 Battery stack, Solar Battery Charger, Car Battery Charger, Wall Battery Charger. You could bui... 36 Điện tử, Kĩ thuật điện, PCB Layout, Thiết kế sản phẩm, Thiết kế vi mạch Jun 19, 2018 Jun 19, 20182n 14g $1081
Calibrate 7 energy meters by wiring up at a high consumption cable CALIBRATE 7 ENERGY METERS We have 7 pcs of energy meters, type EH10-DIN Carlo Gavazzi . The 7 energy meters need to be calibrated. Not via electronic programming, but by wiring up at a high consumption cable. The readings need to be higher then they are now. The maximum which needs to be added is +- 20 000 kWh. The various 7 meters need different readings (which we will inform in detail)... 3 Kĩ thuật, Điện tử, Kĩ thuật cơ khí, Kĩ thuật điện, Thiết kế vi mạch Jun 19, 2018 Jun 19, 20182n 10g $246
device engineer we need device engineer freelancers. you have to know about PCB. 26 Điện tử, Vi điều khiển, Kĩ thuật điện, PCB Layout, Thiết kế vi mạch Jun 19, 2018 Jun 19, 20182n 6g $169
need a Custom and Complete Schematic Redesign/ PCB designed in Altium Need to Update current Altium Design to New ICs reference design is available [login to view URL] - Libraries of Components including Components Schematics and Footprints need to be made/changed - Project Files Should be Production Ready Output Format, including complete BOM and Gerber/pick-place files - Design must be safe; the device must operate reliably. - Design must be optimize... 28 Điện tử, Kĩ thuật điện, PCB Layout, Thiết kế sản phẩm, Thiết kế vi mạch Jun 19, 2018 Jun 19, 20182n 4g $91
We need a Custom and Complete Schematic Redesign/ PCB designed in Altium/ Need to Update current Altium Design to New ICs reference design is available [login to view URL] - Libraries of Components including Components Schematics and Footprints need to be made/changed - Project Files Should be Production Ready Output Format, including complete BOM and Gerber/pick-place files - Design must be safe; the device must operate reliably. - Design must be optimize... 11 Điện tử, Kĩ thuật điện, PCB Layout, Thiết kế sản phẩm, Thiết kế vi mạch Jun 19, 2018 Jun 19, 20182n 3g $125
PCB schematics testing and designing, other support I have python code, PCB schematics. I need its testing, PCB designing, and finalization of my electronics model. 11 Điện tử, Vi điều khiển, PCB Layout, Thiết kế vi mạch, Raspberry Pi Jun 19, 2018 Jun 19, 20182n 2g $125
Breakout Board design using eagle software We are looking for someone that can help us to design the breakout boards for "AFE4490(Pulse sensors)" and " ADS1294RIZXGT (For Heart rate and respiratory rate )" using eagle software. datasheet for ADS1294RIZXGT [login to view URL] and for AFE4490 [login to view URL] 17 Điện tử, Vi điều khiển, Kĩ thuật điện, PCB Layout, Thiết kế vi mạch Jun 19, 2018 Jun 19, 20182n 1g $415
EV Charger HI, This is Anshul Shrivastava from Radite Group. Radite group is fastest growing company in India in field of Solar. We have already executed various projects in India. Radite Group is looking to enter into Electric Vehicle Charging Station business and looking for consultant to develop the PCB design for the same. We have gone through and want to understand if a candidate capable of delivering ... 16 Điện tử, Vi điều khiển, Kĩ thuật điện, PCB Layout, Thiết kế vi mạch Jun 19, 2018 Jun 19, 20181n 21g $381
PCB Board and iOT device design for e-scooter =We are building an e-scooter sharing company with a mobile app and are looking to build and iOT device that will be attached to the scooter. The device will likely have network communication, GPS, and bluetooth. Some other details are as follows: * Our mobile app will set a locked/unlocked status for the scooter on the server, and the iOT device should be able to listen for the state change. ... 31 Điện tử, Vi điều khiển, PCB Layout, Thiết kế sản phẩm, Thiết kế vi mạch Jun 18, 2018 Jun 18, 20181n 13g $137
Controller using Battery Power for Induction motor Design a controller which will drive induction motor (100 kw) off Battery bank with frequency up to 300 hz. The required voltage is 400 V, 300 hz. You are free to design Battery / Cell arrangement to get required output and also the type of battery use e.g. li-on or polymer or something better... 8 Kĩ thuật, Điện tử, Kĩ thuật cơ khí, Kĩ thuật điện, Thiết kế vi mạch Jun 18, 2018 Jun 18, 20181n 8g $111
need an expert in motors electrical motors expert needed to work on some drivers 14 Kĩ thuật, Điện tử, Matlab and Mathematica, Kĩ thuật điện, Thiết kế vi mạch Jun 18, 2018 Jun 18, 20181n 5g $18
Need a 3 Phase Inverter Designer Electrical Engineer 3 phase Inverter for [10hp] Motor 110V 60hz please only bid if you have experience in this field my budget is fix and i will provide details only to winner bidder so make sure you add + you experience and previous work details [related to VFD] dont forget to write proposal. thanks 19 Điện tử, Vi điều khiển, Kĩ thuật điện, PCB Layout, Thiết kế vi mạch Jun 18, 2018 Jun 18, 20181n 2g $28
Ready-to-use Raspberry Pi image file (fast boot + emulator) Hi, I need a ready-to-use image file for Raspberry Pi Zero that will do the following: - fast-boot into a Sega Genesis emulator; - use buttons connected to GPIO pins as a game controller (4 directional buttons - up/down/left/right, and 8 functional buttons - a/b/c/x/y/z/start/mode); - no text/raspberry logos on boot; - show preloaded games list on start-up that lets you choose which game ROM to ... 8 Kĩ thuật, Kĩ thuật điện, Thiết kế vi mạch, Programming, Raspberry Pi Jun 17, 2018 Jun 17, 201815g 24t $257
PCB Design, Analog Audio circuit expert, KiCAD to Eagle I'm looking for someone who is expert in PCB Design especially in Analog Audio circuit It's a simple circuit -Through hole converts to SMD -Reducing the noise of the circuit -KiCAD to Eagle I need someone professional who can improve the design I will provide you more details 26 Điện tử, Vi điều khiển, Kĩ thuật điện, PCB Layout, Thiết kế vi mạch Jun 17, 2018 Jun 17, 20187g 32t $163
Help me to fix my ADC in VLSI project Hello, I have made a SAR 8 bits binairy coded ADC using method of 2 steps Successive Approximation, but it is a bit buggy. I need very experienced engineer in this field, otherwise it would just be loosing time. The simulation must be done in Cadence Virtuoso 6.x Thanks ! 2 Kĩ thuật, Điện tử, Kĩ thuật điện, Thiết kế vi mạch Jun 17, 2018 Jun 17, 20183g 59t $40
Electric Vehicle Charger PCB Control Board with PLC and GSM Modem Integration over OCPP 1.6 Protocol Dear All, we are Renewable Based company, Now we are looking for support in Design and programme with Integration of Electric Vehicle Charger PLC with Ocpp 1.6 Protocol and GSM Modem. Kindly connect to me at underline details. Regards Dharampal 8 Điện tử, Vi điều khiển, Kĩ thuật điện, PCB Layout, Thiết kế vi mạch Jun 12, 2018 Jun 12, 2018Đã kết thúc $287
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