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Integrated Circuit Design Freelance Jobs more...
Project
Category: Engineering / Architecture
Subcategory: Integrated Circuit Design
Description: I need a printed circuit board designed for a wireless system. This shall measure 8" x 9". It should have 2 layers. I need it also need proof that it will work. I also want a schematic electronic drawing in CAD.
Bids:
Bid #: 616747
Amount: Sealed
Project Match:
100%
Submitted: 10/29/2009 06:19 PM PDT
Revised: 10/29/2009 06:52 PM PDT
JA Consulting Group
Skill Rating:
 10.0
10 skills
Service Rating:
 10.0
5 reviews
Location:
Florida, United States
Project
Category: Engineering / Architecture
Subcategory: Integrated Circuit Design
Description: Need a design and prototype for an audio equalizer for use in professional recording studio or live sound applications. The purpose of the unit will be to provide eq to compressor sidechain circuits used in professional audio applications.

The circuit should:

Have 4 individual eq channels on a single circuit board that will fit in a standard 19" 1U equipment rack style chassis

Consist (per channel) of a high pass filter adjustable by knob from off progressively up to 400 hz. The slope of this filter should be adjustable between 12dB and 24dB per octave. Also per channel will be a single semi parametric filter adjustable from 1k Hz up to 9k Hz. with a switch for "wide Q" and "narrow Q" modes. This filter should boost or cut 12-15dB

Allow for balanced or unbalanced inputs and outputs and use 1\4" connectors

Utilize a separate decent quality "line lump" style power supply

Utilize traditional components rather than SMD

Utilize high quality components throughout.
Project
Category: Engineering / Architecture
Subcategory: Integrated Circuit Design
Description: Please note: the following post mentions a product produced by a company that closed 22 years ago, all relevant patents have expired.

Looking for a circuit designer to design and prototype a digital audio delay circuit. The idea would be to recreate the character of early 80s delay units similar to Deltalab Effectron units. These units utilized a delta-modulation circuit rather than the now ubiquitous pcm type delay circuits. They had a several desirable qualities over pcm type delays. Most notably the ability to change delay times on the fly which would create very interesting and musical sounds, limited bandwith "low-fi" sounds, and a modulator circuit to further modify the character of the delay. The primary limitations of the design were high noise and lack of a "tap tempo". A tap tempo allows the user to set the delay time in tempo with the song.  

The circuit design ideally should:

resemble the sound and function of the Deltalab Effectron  ADM1024 or similar unit

incorporate a tap tempo feature if feasible (but also retain the delay time knob)

Be designed physically to be incorporated into both a guitar effects pedal type package, and also a API 500 series rack module (VPR Alliance standards)

include input and output approriate for both guitar (unbalaced high impedance) 1\4 inch connectors. And pro level balanced +4dbu in and output conforming to the API VPR Alliance standards.

If a single VPR slot is not sufficient space for the circuit, the design could be made stereo and utilize two slots

Preferably utilize traditional circuit components rather than than SMD style circuit board.

incorporate a high pass and low pass eq circuit to modify the incoming signal (HP adjustable from off up to  300Hz, and LP adjustable from off down to 800Hz

incoporate high quality components, switches, knobs, and connectors suitable for use in a professional audio setting
Bids:
Bid #: 611754
Amount: Sealed
Project Match:
75%
Submitted: 10/19/2009 03:49 PM PDT
Revised: 10/19/2009 03:49 PM PDT
Resolution Engineering, Inc.
Skill Rating:
 10.0
5 skills
Service Rating:
not yet rated
Location:
WI, United States
Project
Category: Engineering / Architecture
Subcategory: Integrated Circuit Design
Description: Need a circuit board design for a GPS tracker that uses wireless technology to send location information to a website profile.  Suggestions on how to test system welcomed.  The plan is to utilize a free text message trial for one month to test the texting of location information to website profile (suggestions welcome again).  

*  Need three working prototypes to test if possible
*  Working dimensions of PCB  3" x 0.75" x 0.5"
*  Size is not as important as function, but smaller is better.  

If you have any questions please don't hesitate to contact me.
Bids:
Bid #: 601628
Amount: Sealed
Project Match:
75%
Submitted: 09/25/2009 08:14 PM PDT
Revised: 09/25/2009 08:14 PM PDT
Resolution Engineering, Inc.
Skill Rating:
 10.0
5 skills
Service Rating:
not yet rated
Location:
WI, United States
Bid #: 600628
Amount: Sealed
Project Match:
100%
Submitted: 09/23/2009 11:01 PM PDT
Revised: 09/23/2009 11:01 PM PDT
TMSITechnologies
Skill Rating:
 9.0
9 skills
Service Rating:
not yet rated
Location:
Quebec, Canada
Bid #: 597601
Amount: Sealed
Project Match:
100%
Submitted: 09/17/2009 01:10 PM PDT
Revised: 09/17/2009 01:10 PM PDT
KappaStone Technology Ltd.
Skill Rating:
 10.0
10 skills
Service Rating:
 10.0
2 reviews
Location:
Ohio, United States
Bid #: 597762
Amount: Sealed
Project Match:
100%
Submitted: 09/17/2009 09:55 PM PDT
Revised: 09/17/2009 09:55 PM PDT
Dimitech Pty Ltd
Skill Rating:
 10.0
5 skills
Service Rating:
 10.0
2 reviews
Location:
Victoria, Australia
Bid #: 606716
Amount: Sealed
Project Match:
100%
Submitted: 10/08/2009 12:44 PM PDT
Revised: 10/08/2009 12:44 PM PDT
Vincent Risalvato
Skill Rating:
 10.0
10 skills
Service Rating:
not yet rated
Location:
FL, United States
Project
Category: Engineering / Architecture
Subcategory: Integrated Circuit Design
Description: We are currently working on a prototype of a micro chip imbedded or casted into a metal casting of at the most if not smaller than 2-3mm in size. This chip must be detectable/readable using some type of location device or if possible gps tracking. It will need to be a chip that can be recovered from the greatest distance possible. We are confident that this information will be kept confidential and the bidder we choose will sign a disclosure paper not to discuss this project. We are in the idea stages and have the idea and would like assistance in creating a prototype of our project.
Bids:
Bid #: 579587
Amount: Sealed
Project Match:
75%
Submitted: 08/11/2009 04:00 PM PDT
Revised: 08/11/2009 04:00 PM PDT
Resolution Engineering, Inc.
Skill Rating:
 10.0
5 skills
Service Rating:
not yet rated
Location:
WI, United States
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