Ubunifu wa Circuit Jobs
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Ajiri Circuit DesignersHey, we need an electronics engineer or someone who knows his way around with electronics. We need a PCB designed (Eagle project files) for a project we're working on, but we don't have an electronics engineer. We sketched the board a little in the attachment but here is a list of requirements: - CortexA53 - 2GB DDR3 RAM - 16 GB eMMC storage - Gbit ethernet port (RJ45 connector) - 2x US...
Calculate the various parameters of the differential amplifier.
The purpose of this project is to design a 760V to 12V DC/DC converter to be used as an integrated auxilliary power supply within various products operating from a nominal 760 VDC source. A possible converter design could be based on off-line power switches but with the main difference that the input voltage is higher than what most off-line switchers on the market can handle. A staged project se...
We have machines that use a circuit board that is no longer made by the original manufacturer. We have a sample board with schematic, but need help identifying components (resistors, capicitors, potentiometers, dip switches, terminal blocks, etc. The board is 3" X 5.5" and we believe only 2 sided. Scope will include creating the Gerber file(s), identifying components and creating a bi...
Need an SSR for AC and DC input out will AC and DC output , should be short circuit protected
Modification of PCB of ESAT.200130.00 project is needed. (new ID is ESAT.200300.00) The project must be done in AltiumDesigner 2018 or higher rev. The following technical changes needed: 1. Output pads X5 (see «ESAT.200130.00.01 [login to view URL]» must be restructured to separate connectors/lines (Rx, Tx, Vdd, GND). Take outline for these task form «[login to view URL]». ...
We wan to Develop AC to DC led Driver I/P Voltage: 140-270VAC/50Hz
The smart charger allows a user to switch the charge process of e-bike lithium batteries off earlier: at 40% (winter storage - degradation is minimal), 60% - 70% - 80% (save lifetime and decrease driving range) and 100%. Switching off takes place based on the voltages that correspond with the 4 "save" positions. As this is not 100% accurate, the switching points are recalculated by mea...
I’m looking for someone to design a PCB board that is essentially a Wemos D1 Mini board connected to a few inputs and outputs. The board would need to be about 58x34mm in size. Inputs are temp/hum sensor, 3.5mm stereo jack, and button. Output is a buzzer. I’m new to PCB board design so I’m sure I will need to speak with the designer to explain further. I know I don’t need a...
Hello, I need a PCB designer for Bluetooth headphone that I am going to use in another product. I need pcb design to be as small as possible. I will share more details in personal chat. Please share your price and time details. (My budget is low as its academic project)
My circuit is consuming 18mA at standby and 24mA when activated (LEDs twinkle) - at 3.3V based on the code that I wrote. I want you to use my code and introduce low power techniques such as sleep mode, low power mode, PWM, Gamma correction, etc, to reduce power consumption. I want to document the progress of the power consumption from the initial value of 18mA at standby (24mA when activated) to...
would to replace a machnical transformer to electric one in order to activate 12vac RGB led line with an esp32 wifi controller. need a eagle schematic and a bom MUST BE minimum physical size !! i'm adding the schematic for the current design with the "big" machanical transformator that need to replace to a small size electric one/
We are looking for PCB and Schematic Diagram Designers adept at using Altium Designer. State in your proposal the complexity of the PCB designs that you have worked on, the applications that you have designed schematics for, as well as your hands-on experience in practising DFM / DFA. Begin your proposal with the words "Substrate" or " Track". You will be expected to work along...
Hello, I want to experiment with a few peripherals / components compatible with an arduino (UNO) board : 1st step / milestone : detect a moving animal / human, then emit a light (infrared sensor HC-SR501 + led) also find a way to debug when the signal of the infrared sensor has changed of state (something detected -> nothing detected, nothing detected -> something detected) 2nd step / mi...
LOOKING TO HIRE A LICENSED ELECTRICAL ENGINEER TO INSPECT 2 UNITS TO MAKE SURE IT WAS CONSTRUCTED TO CODE IN REGARDS TO SPACING AND LOCATION
I want to build a prototype of LED lamp. 1. I want to design the LED PCB design and inverter Circuit. 2. I want to do the prototype development and testing. 3. The PCB should have a lower quantity of parts and if it needs some kind of IC that is also fine. 4. The electronic component should be populated on a single side of the PCB. 5. I do not want to use any transformer on the inverter circui...
The prototype is in working condition and we now require to convert it into a refined product. You are required to assist us in developing PCB designing. The project requires knowledge of LED display boards, screen share, power management. Serious electronic designers are most welcome to share their experiences. We look forward to in-depth discussion for details.
I need to test homemade PCB in a professional way showing details and critical measurements like Ohm vs Freq. etc.
ODB2 device that can locate a vehicle on a lot within 3 feet, report even when battery is dead, provide mileage, battery voltage, speed and vin and must be able to limit all us vehicles to a fixed speed limit. Device must be inexpensive $10.00 per unit/10000 units. Device must report requested information to a web service we provide upon demand and on regular intervals.
Need a hardware analysis of my PCB card (especially the power part) need help with the following: -Go through all the components (I want to share component list and garber filber) - come with alterative methods don't build new pcb just need simple quik fix. Need answers to: * How much mA takes my card * What are card power limits set up with? (24v from mbus) * How many mAs can deliver...
need some help with my Computer Architecture project the involves designing a 32-bit circuit with an ALU and Control Unit. We're using a SW called Logisim to design it.
I need to have a schematic of a regulation circuit for LM2679ADJ with a digital potentiometer as MCP4131 or similar
We are looking for an engineer to help build, layout a VCCC (Voltage Controlled Constant Current Source) Power supply. We have older documents and past projects but are looking for a simple, 5-10A circuit, small as possible. The Set constant Current shall be linearly controlled by the 0-5V input voltage. Similar to attached. Deliverables shall include Schematic, Layout and some sort of proof-of-co...
Induction cooktop with Arduino 1) quasi resonant inverter 2) Need to run continuously, need proper cooling for board and coil 3) For heating mild steel, stainless steel and alloys 4) Need Arduino program to control with Arduino , with watts and time frame (option to increase and decrease watts along with time ), need wiring schematic diagram for arduino also 5) Need Arduino program and manual c...
We have a fabricated RF amplifier IC which need to integrate which RF source, TX and RX antenna. We need PCB designer who have proven experience in RF circuit design and PCB layout design. The circuit requirement are listed as follow, please contact us for detail. - Circuit operation frequency: 2.4GHz - Number of PCB layout: 2 layers - Need to design dice bonding pad. - Matching network is requir...
