EENG 393

Lab 8 - uSupply Layout

Lab:	8
Status	Live

InLab 8

Some self-guided activities.

Lab 8 assignment

Layout your power supply - the whole thing. Guidelines:

Components

Place the following components on the edge of the board: Heat sink On/Off switch Power connector Spring terminal block

Have switch near power connector

Have LED near switch

Place heat sink away from controls (fingers that will be manipulting them)

Put Iset and Vset pots near one another and in a row or column

Place components on 50 mil grid

Align adjacent resistors in rows and column

Each of the four mounting holes should be near one of the board corners

Board

Make the board outline rectangular

Board dimensions should be on 0.1" grid

Make the board outline as small as reasonably possible

Center mounting holes on 0.1" grid

Place mounting holes symmetrically

Route wires on 20 mil grid

Wires

Use 16 mil wires

Do not use the autorouter

Avoid routing wires between close pins

Avoid routing wires between 1206 pads

Avoid 90° bends in wires

Avoid routing on the bottom layer

Use ground via's when convenient

Copper pours

Copper pour ground on the bottom plane

Copper pour power on the top plane

Exactly align top and bottom pour exact

Silk screen

Uniform font and size for part designators (name and value)

Uniform location for part designators on similar parts

Add "on"/"off" text near the switch with correct orientation

Add "CURR" next to Iset pot and "VOLT" next to Vset pot

Add polarity, voltage and current details next to DC power input jack

Optional

Add Blaster ftw

Turn-in

This is an individual assignment.

• Find and accept the Google drive invitation for the EENG 393 folder sent out by me. Go into this folder and find the folder named "first.last" where "last" is your last name and "first", your first name. This is your folder, please create a folder inside it called "version 1", This is where you will store your initial design.
• When you complete your layout, copy your ".sch" and ".brd" files into your folder. Please copy both files.

Note: Everyone has access to everyone else's folder - do not make this the primary repository for your schematic and layout. And do not copy anyone else's layout - I shouldn't even have to say this.

Print your layout as a PDF using the largest scale that allows your layout to fit on one sheet of 8.5x11 in landscape if you like. Make sure to have Visible Layers set to Preset_Standard as shown below. Upload the PDF to Canvas.