• ¥20元 Circuit Design Project (MOSFETS Amplifier) PLEASE READ EVERYTHING CAREFULLY!

    状态: 未托管 关注: 截止交稿时间: 2018-12-03

    fr(中文版)

    PLEASE READ THE PDF FILE FOR DETAILS!

    I do NOT require the simulation part to be done.

    DEADLINE is 36 hours from now, but I REQUIRE an HOURLY UPDATE, as I would like to see the progress and work on it myself.

    Please read everything before placing a bid

    and BID THE AMOUNT THAT YOU ARE WILLING TO WORK FOR.

    and DO NOT ASK FOR MY BUDGET as I will assume that you are willing to work for the amount that you bid for.

    redesign a sensor interface using a new technology. The

    schematic is shown in Figure 1. Your focus is to properly size all of the MOSFETs and resistors to meet the following objectives:

    Technology 0.18 µm CMOS (Nominal)

    Operating temperature 25 °C

    Supply voltage (V DD ) 1.8 V

    Output load (C L ) 10 pF

    Input common-mode range 0.2 – 0.8 V

    Common-mode output voltage 0.4 – 1.4 V

    Power dissipation ≤ 5 mW (minimize)

    DC small-signal gain ≥ 90 dB

    Unity gain bandwidth ≥ 2 MHz

    Phase margin ≥ 65 °

    Gain margin ≥ 15 dB

    Current mirror “m” factor ≤ 20

    L min (current mirrors) ≥ 1 µm

    Gate overdrive voltage (V OV ) ≥ 150 mV

    You must size each of the devices to meet the specifications (Table 1). You need to provide the supporting documentation and calculations (as outlined below). For simplicity, you are not required to verify the design across PVT variations. In practice, this would be the next logical step after getting the “nominal” design working.

    Suggested Design Flow

    1) Read this entire document thoroughly

    2) Familiarize yourself with the schematic in Figure 1. Analyze how the key blocks interact. Draw simplified half-circuit schematics (differential- and common-mode). This will allow you to identify the main “knobs.”

    4) Simulate your design in SPICE and compare the results to your hand calculations. Inspect and track down discrepancies. If your circuit does not work, double check your schematic and operating point. (Do not just blame your problems on SPICE!) Be thorough in checking your assumptions and calculations.

    Design Hint: The first design that you simulate does not (and probably should not) look exactly like the final circuit (i.e. there is no need to implement the complete biasing circuit in the beginning). Start by using a simplified (idealized) current source for biasing. Once your idealized design works, it is straightforward to translate it into the final version that complies with all the constraints. (Note: Sometimes it helps if you add estimated load impedances such that there is not a significant difference when you replace the ideal loads.)

    Project Report

    Page 1: Outline of your design. How did you approach this problem? What were your key design choices?

    Page 2: Schematic of your final design with component values (i.e. W/L, R, etc.) Node voltages and bias

    currents (from .op) clearly labeled. Component values should be listed next to the components and currents

    next to the branches. Annotate all transistors with their gate overdrive voltage. (No lookup tables!)

    Page 3-6: Calculation of key design parameters, such as g m , bias currents, etc. (This is the most important

    part of your report!) Compare the most relevant hand calculations with the final SPICE values in a table and

    discuss the discrepancies. Make sure to include your power dissipation (calculation and simulated). The

    lowest power designs will NOT automatically score the highest. The methodology is far more important.

    Page 7: Bode plot simulation results. Clearly annotate achieved DC gain, bandwidth, and phase margin.

    Annotate your hand calculated values on the same plot. (Make sure ALL plots are clearly legible.)

    Page 8: Transient simulation results for a 10 µV pp sinusoid at 20 Hz.

    技能: 电路设计, 电機工程, 电子, 工程, 印制板布局

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  • ¥19元 WANT SOMEONE WITH KNOWLEDGE FOR ELECTRIC CIRCUITS

    状态: 未托管 关注: 截止交稿时间: 2018-12-01

    fr(中文版)

    I WANT SOMEONE WHO UNDERSTANDS ELECTRIC CIRCUITS TO HELP ME WITH SOME STUFF

    技能: 电路设计, 电機工程, 电子, 工程, 机械工程

    查看更多: can i hire someone to help me with seo in london, i need an engineer to help me with the design and description for a patent, i need someone to help me for my assignment of service marketing, i want to find someone to help me write a book, looking for someone to help me with seo sms, want someone to help me write a book for free, how do i find someone to help me write an article for the lds paper, i am a london based photographer looking for an assistant to help me out with my different projects mainly with my wedding photo, i just want a consulation with a designer to give me some ideas, im looking for someone to help me write my lifes story traumatic and heartbreaking i have not much money who do i go, i need an author someone to help me with my book, i want a computer scientis programmer to help me with my project london, i want someone to help me develop an app, i want to write a book and need some one to help me with it, Looking for a Flexible Virtual/Personal Assistant to Help me with Various Tasks , I am looking for a freelancer to help me with my project. The skills required are Articles, Content Writing, Copywriting and Gho, I am looking for a virtual assistant to help me with my project., I am looking for a freelancer to help me with my translation project. The skill required is Translation. I am happy to pay a fix, I am looking for a freelancer to help me with my project. The skills required are extremely high quality Poster Design. I am hap, I am looking for a freelancer to help me with my project. The skills required are Drupal, eLearning, Moodle and SugarCRM. I am h

  • ¥20元 Raspberry Pi expert needed

    状态: 未托管 关注: 截止交稿时间: 2018-12-01

    fr(中文版)

    Raspberry Pi expert needed. Need to work as per the instruction document and prepare design document

    技能: Arduino, 电路设计, 电子, 微控制器, 树莓派

    查看更多: photoshop expert needed photo edit work, vtiger email problem need fixed expert needed, linux expert need work, shopify expert needed for immediate work, raspberry pi expert freelance, need vb expert to do work urgently, laravel expert needed right away to work on my site . only experts, raspberry pi work, raspberry pi work afghanistan, raspberry pi work aland islands, raspberry pi work albania, raspberry pi work algeria, raspberry pi work american samoa, raspberry pi work andorra, raspberry pi work angola, raspberry pi work anguilla, raspberry pi work antarctica, raspberry pi work antigua and barbuda, raspberry pi work argentina, raspberry pi work armenia

  • ¥90元 PCB design

    状态: 未托管 关注: 截止交稿时间: 2018-12-01

    fr(中文版)

    Hello, First of all please only experience bidder are required.

    I want you to design a PCB.

    The circuit should be as same ass wireless speaker but as small as possible.

    Rest details will be discussed in chat.

    技能: 电路设计, 电機工程, 电子, 微控制器, 印制板布局

    查看更多: freelance pcb design project, signal pcb design, pcb design mixed signals, linux pcb design, pcb design hourly rates canada, speed pcb design layout, pcb design adc, tina pcb design review, pcb design gps, provide pcb design, electronics project pcb design, pcb design services pricing, pcb design services indore india, power supply pcb design

  • ¥7000元 Design of esp8266 based Prototype

    状态: 未托管 关注: 截止交稿时间: 2018-11-30

    fr(中文版)

    Design simple 220 V AC fan regulator switch using esp8266 with touch control. Deliverable will include working prototype and PCB design file

    技能: 电路设计, 电機工程, 电子, 微控制器, 印制板布局

    查看更多: basic prototype web design html holiday accommodation, free prototype mockup design, prototype web design, create prototype website design, html prototype interface design, sharepoint prototype site design, design microcontroller based energy meter design lcd rs232, simple led pcb design, prototype gui design wpf, prototype encasement design, prototype ios design, want prototype toy design, can prototype toy design, can prototype shoe design, prototype electronics design, pcb layout design project based, simple transmitter pcb design, simple design pcb

  • ¥20元 Design Project (Analog Integrated Circuit Design)

    状态: 未托管 关注: 截止交稿时间: 2018-11-30

    fr(中文版)

    Design Project (Analog Integrated Circuit Design)

    1) PLEASE READ THROUGH THE DESCRIPTION FIRST BEFORE BIDDING

    2) BID THE PROPER AMOUNT THAT YOU ARE WILLING TO DO THIS WORK FOR

    a. DO NOT BID AN ABSURDLY LOW AMOUNT IN COMPARISON TO WHAT YOU ARE ACTUALLY WILLING TO WORK FOR

    3) I HAVE PREVIOUS VERSION SAMPLE WITH SOLUTION THAT I CAN PROVIDE TO HELP CLARIFY WHAT IS REQUIRED.

    a. WILL PROVIDE TO THOSE WHO ASK/POTENTIAL FREELANCER WITH WINNING BID.

    Full project description in the pdf file named "Design [login to view URL]"

    技能: 电路设计, 电機工程, 电子, 工程, 印制板布局

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  • ¥500元 I need a circuit designer for Double differntial EMG electrode

    状态: 未托管 关注: 截止交稿时间: 2018-11-29

    fr(中文版)

    Hello designers,

    We are looking for a circuit designer to build a double differential EMG amplifier circuit for our prosthetic hand.

    Only people who have worked on similar bio signal processing circuits should apply.

    技能: 电路设计, 电機工程, 电子, 工程, 矩阵及数学软件

    查看更多: i need a designer for frozen burger packaging, i need a designer for my app, i need a designer for my clothing line, i need a designer for t shirts, i need a designer freelance for t shirt, i need a designer freelance, i need a designer on demand, i need a designer that design dresses, i need a designer to help me produce simple prints for clothing, i need a designer white blouse and black skirt, i need a designer, i need award designer, i need fashion designer for children garments in france, i need graphic designer in accrington, i need graphic designer in bngalore hbr layout, i need graphic designer miami, I need graphic designer, I need graphics designer, i need indesign designer, i need landscape designer

  • ¥575元 PCB Designers

    状态: 未托管 关注: 截止交稿时间: 2018-11-29

    fr(中文版)

    Power Circuit of Power Electronic Converters

    技能: 电路设计, 电機工程, 电子, 微控制器, 印制板布局

    查看更多: circuit diagram power sources, electronic circuit websites, electronic circuit bomber program orcad, switching circuit loose power, stationary electronic circuit, web designers electronic medical records, electronic circuit design outsourcing chennai, electronic circuit pcb layout, circuit diagram power converters, pcb electronic circuit project, design circuit dc power supply pcb, pcb circuit regulated power supply, circuit design power supply pcb, alarm electronic circuit pcb design, electronic circuit diagram pcb layout, diagram power electronic circuit inverter, electronic circuit design pcb design, electronic circuit designers

  • ¥20元 DLD small task in logisim

    状态: 未托管 关注: 截止交稿时间: 2018-11-29

    fr(中文版)

    logisim work for electrical engineer

    技能: 电路设计, 电機工程, 电子, 工程, 印制板布局

    查看更多: can write proposal future demand electrical engineer, electrical engineer allied bank, small reading text work jobs, bid work electrical engineer, electrical engineer freelance work qatar, i need to hire an electrical engineer for a small job in houston, electrical engineer freelance work, electrical engineer work from home, electrical engineer work in germany, looking for a freelance electrical engineer for a small job, online work for electrical engineer, work from home electrical engineer, work in dubai as an electrical engineer, electrical engineer work, electrical engineer looking for work, where can an electrical engineer work, where can a electrical engineer work, electrical engineer work at, where does a electrical engineer work, electrical engineer weekend work

  • ¥20元 logisim expert for a one hour work easy

    状态: 未托管 关注: 截止交稿时间: 2018-11-29

    fr(中文版)

    logisim work for electrical engineer

    技能: 电路设计, 电機工程, 电子, 工程, 印制板布局

    查看更多: hour work week virtual personal assistants, can write proposal future demand electrical engineer, electrical engineer allied bank, linux server expert hour work rockerstecsearch term, bid work electrical engineer, electrical engineer freelance work qatar, electrical engineer consultants charge per hour, electrical engineer freelance work, electrical engineer work from home, electrical engineer work in germany, online work for electrical engineer, work from home electrical engineer, work in dubai as an electrical engineer, electrical engineer work, electrical engineer looking for work, where can an electrical engineer work, where can a electrical engineer work, electrical engineer work at, where does a electrical engineer work, electrical engineer weekend work

  • ¥500元 Electronic circuit design

    状态: 未托管 关注: 截止交稿时间: 2018-11-29

    fr(中文版)

    custom bluetooth tracker using prefabricated modules

    技能: 电路设计, 电機工程, 电子, 微控制器, 印制板布局

    查看更多: electronic circuit design outsourcing chennai, electronic circuit design prototype, electronic circuit design software, electronic circuit design pcb design, electronic circuit design camera, electronic circuit design programming, inverter electronic circuit design, electronic circuit design engineer, electronic circuit design, freelance electronic circuit design, electronic circuit design job in dubai, basic electronic circuit design, bass guitar electronic circuit design, electronic circuit design company, electronic circuit design consultant, electronic circuit design freelance, electronic circuit design freelancer, electronic circuit design freelancers, electronic circuit design freelance uk

  • ¥140元 PCB Schematic Review and Design

    状态: 未托管 关注: 截止交稿时间: 2018-11-29

    fr(中文版)

    I need an experienced electronics designer to review my circuits for 2 separate PCB's, and optimize them for cost, safety, and function. I will then need them to do the same for my PCB design files. What I am looking for is someone with enough expertise that they will have the ability to assess whether my component selection makes sense, if my circuits are functional, and an ability to create the full PCB design in a timely manner. The deliverables for this project will be 2 revised circuit diagrams, Altium PCB design files or equivalent, and Gerber files that should be ready to send to a manufacturer. Attached are some image and pdf files for the circuit as currently designed for the more complicated PCB.

    技能: 电路设计, 电機工程, 电子, 印制板布局

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  • ¥20元 Differential Amplifier Design (Spectre Cadence) Analog Integrated Circuit Desig

    状态: 未托管 关注: 截止交稿时间: 2018-11-28

    fr(中文版)

    Deadline is 5 A.M. PST (CALIFORNIA, USA TIME)

    Need to use Spectre Cadence

    Have some files that will make the project easier (will send to potential winning bidder)

    Design an amplifier with a gain of 60dB and a bandwidth of 3 MHz. The amplifier must drive a single-ended load capacitance C_L of 5 pF. The input signal comes from Wheatstone bridge with a maximum difference between the differential inputs of 100 uV and a source impedance of 2k Ohms. Bias your amplifier using an appropriate bias network. You are permitted only one reference current of 200 uA.

    Must follow this requirement: Vov >= 150 mV and m <=20 (integer)

    Finished project must have:

    1) Hand Calculations

    2) Schematic

    3) Simulation results showing DC operating point, AC response, and transient response

    4) Explanation of design methodology

    技能: 电路设计, 电機工程, 电子, 工程

    查看更多: bluetooth audio circuit design, circuit design saving money, basic circuit design switch, power supply circuit design, circuit design needed, bid circuit design, microcontroller circuit design windows, charger circuit design, led circuit design, hiring circuit design, electronic circuit design outsourcing chennai, circuit design battery switch, circuit design led operating system, simple circuit design projects, analog front end circuit design, Analog Circuit design, photodiode amplifier circuit design, integrated circuit design, microwave amplifier circuit design, Analog CMOS circuit design

  • ¥500元 Desejo contratar freelancer para desenvolvimento de PCB Contratação será rápida

    状态: 未托管 关注: 截止交稿时间: 2018-11-28

    fr(中文版)

    Trata-se de de uma placa de dois lados que já temos desenvolvida como prototipo e desejamos realizar ajustes e novas impressoes. Possui processador atmel2560, 24 bornes, RTC, ethernet e sd card. Temos arquivo de impressão e fotolitos. Necessário fazer novo projeto PCB em formato Gerber com pequenos ajustes de conexão (basicamente definição de ligação entre bornes e portas digitais e analógicas.

    技能: 电路设计, 电子, 制造设计, 微控制器, 印制板布局

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  • ¥140元 Design PCB : Schematic Diagram

    状态: 未托管 关注: 截止交稿时间: 2018-11-28

    fr(中文版)

    I need circuit board to fit in the device like mobile phone,

    1. chip to upload Linux based software,

    2. IRIS camera for face detection,

    3. MIC for voice recognition,

    4. Battery with NFC charging capability only,

    5. SIM card provision for GPS/GPRS connectivity,

    6. Bio-Metric sensor for finger scanning

    Above mentioned are some important features required for the hardware. Kindly please feel free to contact me to discuss further, on below mentioned contact details.

    技能: 电路设计, 电機工程, 电子, 微控制器, 印制板布局

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