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Electronic PCB Design (Reverse engineer existing design with modifications)
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Engineering & Manufacturing > Electrical

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The client has made the following changes to the job.

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Job description changed. New Version|Previous Version

Mar 21, 2014

Job description changed. New Version|Previous Version

Mar 18, 2014
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Job Description

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Project Description: Require PCB layout completed via reverse engineering/ modify an existing design. The project is for a LED emitter driver. The exact emitter is best seen here: http://www.fasttech.com/products/1612/10001683/1122302-8-amc7135-4-group-25-modes-led-flashlight-driver-c Job expectations: 1. Supply PCB layout 2. Supply detailed schematic print and component list/specifications I will write the program. Job is complete when the schematics can be used to setup a bread board and achieve functionality. I am open to other design considerations and input. The design requirement are: 1. PCB layout in 17mm diameter board as per 1122302 design 2. Modification to permit 3 different switch inputs 3. There are 4 "star" locations on the above mentioned board. These stars permit configuration changes of modes by grounding one star or another. The need is to allow one of the 3 switches to make this change "on the fly" rather than solder joint. 4. IC chip (Prefer the ATTINY series) to be programmable. The layout should permit attachment points at each IC lead to attach cable connector to permit- On Board Programming of the IC. 5. Must maintain the set 8-AMC7135 regulators or 2800 milliamp output current I forgot to mention: Two of the switches that are to be used (not the 4 star switch) are Tactile switches. These switches are rated 12VDC @ 50 milliamp. Therefore will not take the current of 2800 milliamps. There is a need for a mosfet transistor switch of sorts so that the tactile switches only have to deliver voltage to open the gate. Other specs: (As per specs listed on fasttech website for this driver) •Reverse polarity protection •Low input voltage warning: blinks once per second when voltage drops below 2.9V to 3V •Work with 1 lithium battery or 3 AA/AAA batteries •Works with Cree R5 T4 T5 T6 U2 MCE, and other similar LEDs •PCB height: As design dictates •PCB height (including components): As design dictates •No power spring required Skills required: Electrical Engineering, Electronics, Microcontroller, PCB Layout

Project Description: Require PCB layout completed via reverse engineering/ modify an existing design. The project is for a LED emitter driver. The exact emitter is best seen here: <span class="obscureText" title="Login to see this URL">&nbsp;&nbsp;[obscured]&nbsp;&nbsp;</span>/products/1612/10001683/1122302-8-amc7135-4-group-25-modes-led-flashlight-driver-c Job expectations: 1. Supply PCB layout 2. Supply detailed schematic print and component list/specifications I will write the program. Job is complete when the schematics can be used to setup a bread board and achieve functionality. I am open to other design considerations and input. The design requirement are: 1. PCB layout in 17mm diameter board as per 1122302 design 2. Modification to permit 3 different switch inputs 3. There are 4 &quot;star&quot; locations on the above mentioned board. These stars permit configuration changes of modes by grounding one star or another. The need is to allow one of the 3 switches to make this change &quot;on the fly&quot; rather than solder joint. 4. IC chip (Prefer the ATTINY series...

Mar 21, 2014

Project Description: Require PCB layout completed via reverse engineering/ modify an existing design. The project is for a LED emitter driver. The exact emitter is best seen here: http://www.fasttech.com/products/1612/10001683/1122302-8-amc7135-4-group-25-modes-led-flashlight-driver-c Job expectations: 1. Supply PCB layout 2. Supply detailed schematic print and component list/specifications I will write the program. Job is complete when the schematics can be used to setup a bread board and achieve functionality. I am open to other design considerations and input. The design requirement are: 1. PCB layout in 17mm diameter board as per 1122302 design 2. Modification to permit 3 different switch inputs 3. There are 4 "star" locations on the above mentioned board. These stars permit configuration changes of modes by grounding one star or another. The need is to allow one of the 3 switches to make this change "on the fly" rather than solder joint. 4. IC chip (Prefer the ATTINY series) to be programmable. The layout should permit attachment points at each IC lead to attach cable connector to permit- On Board Programming of the IC. 5. Must maintain the set 8-AMC7135 regulators or 2800 milliamp output current Other specs: (As per specs listed on fasttech website for this driver) •Reverse polarity protection •Low input voltage warning: blinks once per second when voltage drops below 2.9V to 3V •Work with 1 lithium battery or 3 AA/AAA batteries •Works with Cree R5 T4 T5 T6 U2 MCE, and other similar LEDs •PCB height: As design dictates •PCB height (including components): As design dictates •No power spring required Skills required: Electrical Engineering, Electronics, Microcontroller, PCB Layout

Project Description: Require PCB layout completed via reverse engineering/ modify an existing design. The project is for a LED emitter driver. The exact emitter is best seen here: http://www.fasttech.com/products/1612/10001683/1122302-8-amc7135-4-group-25-modes-led-flashlight-driver-c Job expectations: 1. Supply PCB layout 2. Supply detailed schematic print and component list/specifications I will write the program. Job is complete when the schematics can be used to setup a bread board and achieve functionality. I am open to other design considerations and input. The design requirement are: 1. PCB layout in 17mm diameter board as per 1122302 design 2. Modification to permit 3 different switch inputs 3. There are 4 "star" locations on the above mentioned board. These stars permit configuration changes of modes by grounding one star or another. The need is to allow one of the 3 switches to make this change "on the fly" rather than solder joint. 4. IC chip (Prefer the ATTINY series) to be programmable. The layout should permit attachment points at each IC lead to attach cable connector to permit- On Board Programming of the IC. 5. Must maintain the set 8-AMC7135 regulators or 2800 milliamp output current I forgot to mention: Two of the switches that are to be used (not the 4 star switch) are Tactile switches. These switches are rated 12VDC @ 50 milliamp. Therefore will not take the current of 2800 milliamps. There is a need for a mosfet transistor switch of sorts so that the tactile switches only have to deliver voltage to open the gate. Other specs: (As per specs listed on fasttech website for this driver) •Reverse polarity protection •Low input voltage warning: blinks once per second when voltage drops below 2.9V to 3V •Work with 1 lithium battery or 3 AA/AAA batteries •Works with Cree R5 T4 T5 T6 U2 MCE, and other similar LEDs •PCB height: As design dictates •PCB height (including components): As design dictates •No power spring required Skills required: Electrical Engineering, Electronics, Microcontroller, PCB Layout

Mar 18, 2014

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  • Posted: Tue, Mar 18, 2014
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  • Start: Immediately
  • Budget: Less than $500
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Project Description:
Require PCB layout completed via reverse engineering/ modify an existing design. The project is for a LED emitter driver. The exact emitter is best seen here:   [obscured]  /products/1612/10001683/1122302-8-amc7135-4-group-25-modes-led-flashlight-driver-c

Job expectations:
1. Supply PCB layout
2. Supply detailed schematic print and component list/specifications

I will write the program. Job is complete when the schematics can be used to setup a bread board and achieve functionality. I am open to other design considerations and input.

The design requirement are:
1. PCB layout in 17mm diameter board as per 1122302 design
2. Modification to permit 3 different switch inputs
3. There are 4 "star" locations on the above mentioned board. These stars permit configuration changes of modes by grounding one star or another. The need is to allow one of the 3 switches to make this change "on the fly" rather than solder joint.
4. IC chip (Prefer the ATTINY series...

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Job ID: 54464204
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