Exercises

1. LED Calculations and Power Connections

2. Circuit Board Soldering

3. Capacitor Operation

 

 

Exercise 1

LED calculations and Power Connections

 

Equipment Provided

 

1.  Breadboard

2.  Pre Cut Wire

3.  Pasco SF-9584A Low Voltage Power Supply

4.  Fluke 73 Multimeter

5.  2 LEDs, different colors

6. Resistors as needed (based on your calculations)

 

Set Up

 

1.  Make the power supply connections as demonstrated last class (not the ones we have been using with batteries) - we will be using these for most if not all labs

2.  Set up the low voltage AC/DC power supply (demonstrated in class) - do not plug in and turn on until told to do so

      a.  Black cable goes in the black (-) slot on the left  of the power supply, red cable (+) goes into the adjacent red slot on the power supply

      b.  Place the other end of the red cable in the red slot on the breadboard.

      c.  Place the other end of the black cable in the green (ground) slot on the breadboard.

      d.  Locate the voltage adjustment know. When told to do so, set this to 6 volts DC (on the left)

      e.  When told to do so, turn on by pressing the red switch on the right

3. Set the Fluke 73 multimeter to DC volts (second V with a dottet line under a solid line) - the V with the  ~ symbol is for AC - for a later lab

 

Calculations

 

The requirement is to use the two LEDs in series.

Calculate the required resistances

Set up the circuit

 

Turn in

 

Calculations

 

Circuit diagram using the software provided

Note: You do not need to submit this lab in the typical format (hypothesis, etc) - just submit the above 2 items and (see below)

 

Demonstrate the finished product

 

Exercise 2

Circuit Board Soldering Exercise

 

Solder the kit provided

Demonstrate - no lab report required

 

Exercise 3

Capacitor Operation

Set up the following circuit on the breadboard (note that forward bias is being used)