Find freelancers. Lose those costly delays.

With 1.7 million freelancers, we'll match you with the perfect talent.

or, Register with Elance »

Simple Electronic Circuit
Sign in to Add to Watch List

Engineering & Manufacturing > Electrical

View Change History

The client has made the following changes to the job.


Bidding period ended early.

Jul 25, 2012

Job awarded.

Jul 22, 2012

Job awarded.

Jul 20, 2012

Job Description

  |  Change History >>


  • Posted: Thu, Jul 19, 2012
  • Time Left: Closed
  • Location: Anywhere
  • Client prefers freelancers from:

    You are still able to submit a proposal for this job.

    The client prefers freelancers from
    a different location.

    You're still able to submit a proposal for this job, regardless of your location.
  • Start: Immediately
  • Budget: Less than $500
  • Fixed Price Job
  • Elance Escrow Protection
  • W9 Not Required
Sign in to view client's details

I would like a circuit that does the following:

I would like an input of 0-10 VDC coming into an Op-amp with unity gain, going to a transistor with a collector voltage of +60VDC (this can be changed) and an emitter resistance to ground of 17.1 ohms.

The goal is to get up to 4A across the resistor, linearly, following the 0-10VDC input to the op-amp.

What I would like the successful bidder to do is the following:

1) Provide a schematic of the circuit in a simulation program (Altium, spice, etc.)
2) Provide a bill of materials for all parts (transistor, heat sink, op-amp, resistors, etc.)
3) If necessary, design a PCB layout for the system. This should be rated to a few hundred Watts.

Sign in or Register to see more

Job ID: 32100861
Avg $ | High $ | Low $ — Show Pricing
  • Submit Date (Latest)

 Pakistan  |  
An electrical engineer with interest in modelling and design. My first priority is customer satisfaction. I promise value for money and speedy...
 0.0   |  Private   |  0 Jobs
Bid ID: 32173458  |  Submitted: Jul 23, 2012 09:09 ET 
Proposal SEALED

 Poland  |  
Electronics Engineer experienced in fields: PCB layout designing, 8-bit microcontrollers, DC/DC converters, LED lighting applications, Electrical...
 0.0   |  Private   |  0 Jobs
Bid ID: 32153967  |  Submitted: Jul 22, 2012 13:21 ET 
Proposal SEALED

 Singapore  |  
Electronics engineer with over 6 years experience in development environment. Hands on experience in digital and analog circuit design,...
 5.0   |  Private   |  0 Jobs
Bid ID: 32150426  |  Submitted: Jul 22, 2012 08:17 ET 
Proposal SEALED

Nouman Aftab      
Nouman Aftab's identity has been verified.  Learn More
I am an electrical engineer with specialization in control systems. I love programming,electronics,embedded systems and design,electro-mechanical...
 0.0   |  Private   |  0 Jobs
Bid ID: 32147968  |  Submitted: Jul 22, 2012 04:15 ET 
Proposal SEALED

 China  |  
I have good experiences in circuit and PCB design, embbeded programing,web programing.
 0.0   |  $0 Earnings   |  0 Jobs
Bid ID: 32147059  |  Submitted: Jul 22, 2012 02:38 ET 
Proposal SEALED

 Serbia  |  
There are no big problems there are only solutions which are not good enough. Higher chalenge means bigger pleasure to work on it. I will not take...
 4.6   |  Private   |  15 Jobs
Bid ID: 32139762  |  Submitted: Jul 21, 2012 13:42 ET 
Within 2 weeks

 Pakistan  |  
27degrees provides complete engineering [Electrical, Electronics] solutions from concept to design. We are aware of quality standards and know how...
 4.9   |  Private   |  1 Jobs
Bid ID: 32114130  |  Submitted: Jul 20, 2012 08:56 ET 
Within 2 weeks

 Pakistan  |  
Hi, We are expert in Electronic Circuits Design and Simulation. Microcontroller programming. Analog and Digital Circuits Design and Development....
 4.9   |  Private   |  13 Jobs
Bid ID: 32101968  |  Submitted: Jul 19, 2012 21:52 ET 
Proposal SEALED
Sign in to Elance and start working on jobs today.
Sign in to view more of the job details and submit a proposal. Once registered, you'll have access to thousands of jobs online or through email.
Are you ready to post a job like this one?
Post a Similar Job »