|Designing a low frequency filter
||Designing a low-frequency filter with the following characteristics.
Supply is +5V and GND.
The filter should have a gain of -10 (inverting). (Gain in this context might sometimes be referred to as AC-gain)
The filter should have a bandwidth of 1kHz.
The filter should be able to drive a 100 Ohm resistor.
You should make a design with an opamp (try and select one) and back your findings wit...
||Điện tử, Kĩ thuật điện
||Sep 21, 2017
||Sep 21, 20175n 7g
|Firmware Design of STM32 ARM Cortex Sensor PCB in C Compiled with GCC
||Firmware Design of STM32 ARM Cortex Sensor PCB in C Compiled with GCC
Project Objectives: – Understand elements of a small PCB design, sensor data and signals – Consultant to write and test firmware for said PCB.
Fully documented code required.
Target Price for Project: US$750 or less
– Signal Processing
– Circuit ...
||Vi điều khiển, PCB Layout, Arduino, Thiết kế vi mạch, Thiết kế
||Sep 21, 2017
||Sep 21, 20175n 1g
|DISCRETE OP AMP
||Design an amplifier which has the following capabilities:
1. Two inputs one plus , one negative
2. Capable of driving a 50 K ohm load to + 10 V
3. Frequency response DC - 10MHz + 2 db.
4. The input impedance must be at least 1 Megohm
5. The output impedance must be less than 50 ohms
6. Only discrete devices (BJT, FET, TUBES) may be used.
7. This amplifier will be packaged in such a way th...
||Kĩ thuật điện
||Sep 20, 2017
||Sep 20, 20174n 2g
|Analogue electronics/engineering calculations
||Need calculations for analogue electronics done in the area of JFET and capacitors, PID and op-amp based PID controller, transformer and amplifier
||Kĩ thuật điện
||Sep 18, 2017
||Sep 18, 20172n 3g
||I need an intro for my video youtube channel about Sounds.
The intro would be 3-5 Sec long.
and it will have 1 Koala holding electronic guitar sitting on a giant Bass amplifier ( Koala will have an action like Sliding Bass guitar )
then another Koala milking up the Amp with Microphone.
our budget will be under $50 because we are all uni student at the moment.
Please let us know if you can do...
||Sản xuất hoạt họa
||Sep 16, 2017
||Sep 16, 20178g 52t
|We need a simple portable electronic intercom system designed
||Looking for an experienced electronics expert who can design a simple duplex intercom circuit on a PCB. It is required that the end product is lightweight and cost effective. This device will be used for driver-passenger communication in vehicles. We expect the highest quality work. Please respond if you have experience with amplifier circuits and electronics.
PLEASE Provide us with example...
||Kĩ thuật, Điện tử, Vi điều khiển, Kĩ thuật điện, PCB Layout
||Sep 15, 2017
||Sep 15, 2017Đã kết thúc
||PCB Design for amplifier
||PCB Layout, Thiết kế vi mạch, Thiết kế
||Sep 12, 2017
||Sep 12, 2017Đã kết thúc
|Design a Single Board Computer
||We want someone to design us a single board computer from scratch based on the GR8 processor produced by Next Thing. The board would need to be a 2 layer board if at all possible. It would need to have a USB port, micro USB for power, FFC connector for touch screen and LCD, an amplifier IC, two (2) PCB mounted speakers (to be specified), a micro SD card slot and a TI CC1310 IC.
The project wo...
||Điện tử, Vi điều khiển, Kĩ thuật điện, PCB Layout, Thiết kế vi mạch
||Sep 9, 2017
||Sep 9, 2017Đã kết thúc
||Project objectives : This research includes the development of the strong, robust transistor model which will best suitable for the microwave amplifier application.
This model can be used to get some linear and nonlinear measurements, which consists of design, development and circuit analysis of HEMT based FET model and also states the experimental result of existing models.
Using AWR microwa...
||Verilog / VHDL, Very-large-scale integration (VLSI)
||Sep 8, 2017
||Sep 8, 2017Đã kết thúc
|Replace a glass screen on a McIntosh amplifier
||I have a cracked mc452 amplifier and I need it professionally replaced. i need a person who lives in San Francisco, Ca. USA thanks.
||Sep 5, 2017
||Sep 5, 2017Đã kết thúc
|McIntosh Glass Replacement
||I need to replace the glass from a McIntosh Amplifier model MC452
||Điện tử, Cơ điện tử
||Sep 4, 2017
||Sep 4, 2017Đã kết thúc
|Write some Articles
||Here we are again with same catastrophic battle between the Android and the iOs that is going on for years since we got in with the modern gadgets the smartphones .So today we are going to solve your confusion that which is better and clear the pros and cons of your choice .
If you ask me my personal experience will prefer you should go for ios.
Firstly when the question arises that which is...
||Sep 1, 2017
||Sep 1, 2017Đã kết thúc
|camera sensor software
||we are looking for engineer for develop software for Micro HD CMOS sensor , image capturing and converting it to 3D and giving .stl output .with very high accuracy.
||Điện toán đám mây, Ảnh hóa, Image Processing
||Sep 1, 2017
||Sep 1, 2017Đã kết thúc
|Fix a MC452 Amplifier screen
||The screen is cracked on my MC452 amplifier and I have the new screen... I need someone to replace it who is knowledgeable with this type of systems. I need someone that lives in San Francisco, Ca.
||Aug 30, 2017
||Aug 30, 2017Đã kết thúc
|Create electronic schematic and PCB layout.
||Combine three existing schematics with some modifications and create a PCB layout from it.
Digital and analog inputs to an MCU feeding data to an audio CODEC via UART and plays audio through an amplifier.
||Điện tử, PCB Layout, Thiết kế vi mạch
||Aug 29, 2017
||Aug 29, 2017Đã kết thúc
||Kĩ thuật điện, Điện tử, Kĩ thuật, FPGA, Verilog / VHDL
||Aug 27, 2017
||Aug 27, 2017Đã kết thúc
|Making draft concepts for 4 banners and 5 icons
||We are looking for the help of a banner designer to help us to improve the image of our website and highlight the different key activities of our business.
We want this project to be a first step, to find or or propose different concepts, source images and having a draft concept of the icons and banners only. Final banner design will be done in a separate project.
We would like the freelance...
||Thiết kế Banner
||Aug 24, 2017
||Aug 24, 2017Đã kết thúc
||Develop a PCB capable of:
- Wifi audio streaming
- Bluetooth audio streaming
- Multiroom synchro streaming between multiple speakers
- Digital to analog converter
- Audio amplifier
- Power (DC and/or Li-po Battery)
||Điện tử, PCB Layout
||Aug 23, 2017
||Aug 23, 2017Đã kết thúc
||This project involves using a series of piezo-electric vibration sensors on a drum surface to detect a drumbeat. The required parameters will be strength of the beat (amplitude), frequency of the beat (eg. beats per minute/hour) and location of the drumbeat.
This may require an instrumentation amplifier for smaller vibrations.
The sensors, ADC converter and instrumentation amplifier will nee...
||Điện tử, Kiểm tra phần mềm, PCB Layout, Thiết kế vi mạch, Test ứng dụng di động
||Aug 21, 2017
||Aug 21, 2017Đã kết thúc
|Camera and processor research and circuit design
||need to design a circuit board capable of running high end algorithms and can support android or ios OS.
components of the circuit:
1. CMOS camera 13mp
2. Soc (must support android OS)
3. other components if needed
1. A working cirucit design
2. budget for all the components combined must be below 100 USD
3. provide a list of the componets
||Điện tử, Vi điều khiển, Thiết kế vi mạch
||Aug 18, 2017
||Aug 18, 2017Đã kết thúc