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Simple Electronic Circuit
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Engineering & Manufacturing > Electrical

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The client has made the following changes to the job.

Description
Date

Bidding period ended early.

Jul 25, 2012

Job awarded.

Jul 22, 2012

Job awarded.

Jul 20, 2012
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Job Description

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Updated

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

    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
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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.

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Job ID: 32100861
 
Proposals
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  • Submit Date (Latest)

 Pakistan  |  
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Proposal SEALED

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Proposal SEALED

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Bid ID: 32150426  |  Submitted: Jul 22, 2012 08:17 ET 
Proposal SEALED

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