electronic design project report yusof

7/27/2019 Electronic Design Project Report Yusof

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If the product requirement doesn’t achieve the client’s expectation, the company will get heavy

penalty for the failures.

Objective

Objective of this project is :

To use and apply the studying of PCB in working environment

To dedicate self to the electronic design work, and to know how the components and design

related to electronics.

To learn how to use Protheus.7, including the uses of ISIS and ARES.

To learnt how a PCB is created step by step including designing, printing, drilling, etching etc. To study about the devices used to complete the design of the board.

To observe the result of the LED output happened after the finished of the project.

Aim

To create an easy to understand circuit board kit that can be understand for student

especially. The minor target is to sell the product to the market and learnt to fulfil the

client’s requirement, if it is not burden the company and making loses that the company has

to take if the client rejected the product. In order to fulfil all the situated requirement, truth

table, early designing should be done to encounter major and minor problem in the future.

Example of a battery car tester



Block diagram

Equipment and components

Equipment and components are the major parts that consist in this project. In this

project, we did use our own lab in Unikl MFI, as all the equipment are available and can be

used, including designing(Protheus.7), printing, drilling, UV laminating, etching and so on.

Equipment.

Computer that is used to monitored ISIS and ARES. This is important in designing part.



Printer to print out the component’s part and solder point.

The Semi- automatic PCB CNC drilling machine.

This is use to drill the point-to-drill of the PCB board.

It is easier to use fully automatic CNC drill, but we used

Semi auto in our lab.

Photonex UV laminating.



UV explousere.

Tri-Tank etching/stripping

Components.

The components or devices that been used in this project is OP AMP, resistor, LED, battety,

voltmeter, capacitor, oscilloscope.

All the components above are parts in the ISIS.



Project Hypothesis

Level Of Voltage L.E.DRed Yellow Green

X < 9V 9.5V < X < 11V 11V < Z < 13V

X > 13V

This is the truth table of the incoming result. The result should be like this. If the battery

voltage is below 9V, all LED will be off, and vice versa to the 13V and above battery voltage.

Methodology

I. First, design the circuit diagram in the ISIS.

II. Convert the circuit into ARES.

III. Print out the component parts.

IV. Transfer the folder into CNC drilling computer.

V. Using ISO CAM, drill the set the drill, drill point and so on.

VI. Place the board into the CNC drill.

VII. Laminate the PCB using blue UV plastic.

VIII. Soak the PCB using Sodium Hydroxide and Sodium Carbonate, by using Stripper and

Developer tank.

IX. Laminate again using green UV plastic.

X. Solder all components to the PCB board.



Calculation



Flowchart

STARTDesign circuit using ISIS

softwareConvert the circuit to ARES

Print out the component

part and solder resist

Soak PCB into the tri tank to

remove all the unwanted

film

Solder all the component

into PCB

Drill the point on PCB board

using CNC machine.

Laminate the PCB using UV

laminating strip.

END



Procedure

Below are the picture of an example ISIS design :-

Using Protheus7.0, enter ISIS and insert the device and components needed. The device that

should inserted into the plane are : -

- Battery (amplitude 9.5V and varies). Using DC voltage source.

- CONN-SIL2 ( Connector strip )

- Red LED

- Green LED

- Yellow LED

- LM741 ( Operational Amplifier )

- MINRES10K ( Resistor : the value can change by double click the description of the

resistor in the plane )



Create 3 circuit for each LED and the Power Supply Regulator circuit as shown below : -

The 9.5V LED circuit :

The 11V LED Circuit :

The 13V LED Circuit :



0V LED circuit :

After done create all the circuit in the plane, transfer the circuit to the ARES PCB LAYOUT by

include all the components by click the “ARES” icon.

The circuit figure after transfer to the ARES PCB LAYOUT and connect all the components : -

Print out three mask that will be used in the laminating process after this :-



Below is the product after print the circuit layout by use the above setting for track mask : -

The track mask

Setting for label mask: -

Below is the output after print the circuit layout by use the above setting for label mask : -

The label mask



Setting for dot mask: -

Below is the product after print the circuit layout by use the above setting for dot mask : -

The dot mask



After done print all the mask layout, the next task is to create the components hole onto the

single layer board by using the PCB CNC machine that connect with the ISOCAM software in

the computer in the lab.

PCB CNC machine.

Below are the instruction for create the components hole onto the single layer board and

how to using the ISOCAM sofware : -

1) Open ARES

- Select PCB, mirror-X

- Select output

- Set output origin

- Click origin to set

- Select output

- CADCAM output, metric mm

2) Open ISOCAM

- Load file

- CADCAM drill

- Number format: 2 4

- Load file

- CADCAM bottom copper

- Number format: 2 4

- L0

- Save

- Format: 2 3

- Option :

Include drill tool in drill file

- Drill filename :

( create new file name – no need .nc )

- OK

3) Open RouterPRO

-

Drill file

>>



The developer tank The stripper tank

The etching tank

After the etching process, laminate the PCB board by using UV green film for both surface.

before laminated, remove the transparent layer under the UV green film to stick the UV film

to the PCB board. After laminated, match the dot mask with the copper surface and the

label mask to other surface. After that, UV the PCB board for 3 minute. Remove the above

transparent layer then soak the PCB board into the developers tank, then the label and

copper dot will show up.



Conclusion

The conclusion from this project that we can learn is how we study the electronicdesign of a battery car tester. The design is fairly simple and can be used in workshop or so

whatever. The main objective of this project is to make us study how the digital electronic of

a PCB work. We did realise that the PCB is really reliable and can be used in many other

electronic design, except that it may varies in their shape and size. The size, the material,

and the shape of the PCB is part of the designer to do and to arrange the component in his

or her own form. And what we can conclude else is, if we been given a task or job, do it

quickly without procrastinate. This can be shown if a client give us some requirement or job,

we need to do it in his specify or the company should pay for what wrong we did.

In learning progress, we did learnt on how device, equipment work to regulate some

process. We learnt on how device work, components characteristic. For an example the UV

strip that cannot be put under sunlight, though it do make it unusedable. Our flow of work

did show us on how to manage simple task by doing work step by step. We should prepare

our work, do some calculation first, and do some research before conduct the project. This

is to prevent some loses or miscalculation that may lead the unworthy cost to be involve.

electronic design project report yusof

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