1.3-15V Analog Power Supply
PART NO. 2207769
This power supply has an output of variable voltage from 1.3 to 15 Volt because it's based on an LM317 regulator in order to
obtaining those voltages while a 0-15V Analog Monitor shows those ranges of reading with help of a potentiometer.
Go to:
http://www.youtube.com/watch?v=nWfUacvEBIw
WARNING:
If you are unsure of the dangers involved with your particular project, consult with someone who is experienced.
Always wear eye protection and gloves. FAILURE TO INITIATE AND FOLLOW YOUR OWN SAFETY PROCEDURES
MAY RESULT IN BODILY INJURY OR DEATH!
Time Required: 5 hours depending on experience
Experience Level: Intermediate
Required tools and parts:
Soldering iron and solder
Helping Hands
Needle nose pliers
Wire cutters/strippers
Wire #22
Multimeter
Electrical Drill
Drill Bits: 1.5, 3/8, 5/16
Krazy glue
Bill of Materials:
Qty
Jameco SKU
Component Name
1
18906
HIGH CLASS ABS PLASTIC SPEEDY BOXES
1
316603
Analog Voltage Panel Meter 15 Volt DC 2.4 X 1.9
1
690902
1
421331
1
2218901
1
263792
1
264990
Resistor Carbon Film 1.5k Ohm 1/4 Watt 5% (In Bags of 10 and 100)
Connector BNC Receptacle 50 Ohm Solder Cup Straight Panel Mount Gold
20" Alligator Clip to BNC Cable RG58-U Type Cable Black
POTENTIOMETER,10K,RV24A01F-10-15R1-B10K,LINEAR,WITH SW ITCH,1/2 W ATT,.335 INCH
KNOB,1/4 INCH SHAFT,19.8MM,JK-901D,BLACK/ALUMINUM,WITH SET SCREW
1
23579
Standard Regulator 1.2 Volt To 37 Volt 1.5 Amp 3 Pin 3+ Tab TO-220 Rail
1
326596
TO-220 Heatsink With 1 Hole
1
101187
Connector Power Male 3 Position Solder Lug Right Angle Panel Mount 3 Terminal 1 Port
1
2205261
AC/DC W ALL ADAPTER/TRANSFORMER SINGLE-OUT 18V 1A 18W
1
105100
Prototype Builder 1.6" X2.7" PCB Epoxy Glass 0.062" Thick 0.1" Hole Spacing 0.08" Pad Size
1
330431
Capacitor Radial 1 uF 25v 20% 85c 5x11x2mm
1
151116
0.1 uF 25 Volt 20% Ceramic Disc Capacitor
1
690700
5HVLVWRU &DUERQ )LOP
2KP
:DWW
,Q %DJV RI DQG
Step 2 - Preparing your ABS Plastic Enclosure
Do three holes in front side of the enclosure of the following measures: 1.5", 3/8", and 5/16".
Step 3 - Preparing your Analog Panel Meter
In the back side of your Analog Panel Meter, you should connect to its positive terminal a resistor of 1.5K.
Step 4 - Preparing your BNC Connector
Remember that this BNC connector has center positive.
Step 5 - Preparing the Potentiometer
It's necessary that two first terminals of the potentiometer be connected together (from left to the right) so that you can connect them
later to the negative terminal of your power supply.
Step 6 - Preparing the Potentiometer's Switch
Identify the switch of your project in the back side of the potentiometer of 10K.
Step 7 - Installing the BNC Connector
Install the BNC connector.
Step 8 - Installing the Analog Panel Meter
Install the Analog Panel Meter by using Krazy glue only.
Step 9 - Installing the Potentiometer with Switch and its Knob
Install the potentiometer with switch and its knob in the last hole done in your enclosure.
Step 10 - Preparing the Power Jack Connector
Remember that in your power jack connector, its bottom terminals are negative while back terminal is positive.
Step 11 - Installing the Power Jack Connector
Use Krazy glue so that you can install the power jack connector in your enclosure after having done a hole of 5/16" for that purpose.
Step 12 - Analog Power Supply's Diagram
It's imperative that the components be connected exactly and according to the project's diagram.
Step 13 - Complete your PCB
It's vital that components of this project be used according to the specifications of the diagram supplied.
Step 14 - Install the PCB Done Inside your Enclosure
Respect the diagram of this project when you are connecting everything inside of your enclosure.
Step 15 - Close your Enclosure
The lid of this project is the part where you installed previously the power jack connector, and this last component should be
connected before closing the box.
Step 16 - Plug the Unregulated Wall Transformer into the Power Jack Connector
Use your project by plugging the unregulated wall transformer into the power jack connector.
Step 17 - Complete your Project
Connect the BNC cable into the BNC connector.