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Alan RuxElectrical and Computer Engineering Department
University of MassachusettsLowell Campus
Lecture 1 of 4
Analog Discovery Design Kit
Mini Course Webinar
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Revolutionizing How Engineering
Students Learn Analog Circuit
Design
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Go To LectureDo Experiments as in the Syllabus
“ wire-by-numbers”• three to six student in a Team• one student, builds circuit, takes measurements,
fills out lab notebooks• others texts friends & look out into space• one student learns hands-on
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Discovery Kit
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Basic Electronic Lab.
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the Analog Discovery Design Kit
allow students to build and test a wide range of analog and digital circuits using their own PC without the need for any other special test equipment.
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Active learning –
learning by doing helps engineering students understand the process of breaking down larger problems into smaller, more easily solved parts without losing the overall understanding of the complete system.
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University of Massachusetts – Lowell Campus
in partnership with
- University Program
& DIGILENT Education Tools
Indo-US Collaboration for Engineering Education
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Analog Discovery Design Kit
learning by doing
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Analog Discovery Design Kit
• Dual Channel Oscilloscope– Two channels differential input, 1 Meg ohm, 24pfd– +/- 20 volts input max– 250 mv. to 5 Volts / division with variable gain settings– 100 MSPS, 5 MHz bandwidth, 16K points/channel memory– FFT function
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Analog Discovery Design Kit
• 2 Channel, Arbitrary Waveforms Generator– Sine wave– Square wave– Triangular wave– Sawtooth wave– Sweep function– AM-FM modulation– 4 MHz bandwidth, – 10 P-P voltage output– User defined waveforms– Bode function
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Analog Discovery Design Kit
• Power Supply– Two fixed voltages +5 volts / -5 volts, 50 ma. Each– Switchable ON / OFF comands– Unit powered by USB computer port, (cable included)
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Analog Discovery Design Kit
• Logic Analyzer – Pattern Generator – I/O s– 16 signal channels shared between logic analyzer– pattern generator– discrete I/O devices– 100 MSPS, 4 k buffer per pin– Cross triggering with scope channels
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2 differential input Voltmeters
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Network Analyzer 10Hz to 5 MHz
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Analog Discovery Design Kit
• Static I / O– PC based virtual I/O device drivers including:o push buttonso LEDso switcheso seven segment displayso sliderso Progress bars
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Analog Discovery Design Kit
• WaveForms Software– Windows XP or newer– full –featured GUI for all instruments
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Basic Electronic Lab.
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the Analog Discovery Design Kit
allow students to build and test a wide range of analog and digital circuits using their own PC without the need for any other special test equipment.
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This approach eliminates the time and space limitations of traditional university lab settings and allows students more flexibility to experiment with real circuits through direct hands-on experience
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Active learning –
learning by doing helps engineering students understand the process of breaking down larger problems into smaller, more easily solved parts without losing the overall understanding of the complete system.
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Indo-US Collaboration for Engineering Education
University of Massachusetts – Lowell Campus
in partnership with
- University Program
& DIGILENT Education Tools
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Analog Discovery Design Kit
learning by doing
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Analog Parts Kit
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Electrostatic Discharge Hazard
Electrostatic discharge (ESD) is the sudden flow of electricity between two objects caused by contact, an electrical short, or dielectric breakdown. ESD can be caused by a buildup of static electricity by tribocharging, or by electrostatic induction.
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WaveForms Software– Windows XP or newer– full –featured GUI for all instruments
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Let’s Get Started !Google “Analog Discovery Kit Digilent”
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Scroll down page to waveforms
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Mouse click on “Learn more”
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Click on
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Need about 38MBite HD spaceMS Security Essentials will not be happy
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Follow set-up wizard’s instructions
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If you see this, the Discovery kit is not plugged in to USB port
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Unit was detected “connect to device”
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You are now connected
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Download “a getting started guide for first
time WaveForms users”
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Experence the WaveForms software
This can be done with or without the Discovery kit , use demo-mode
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D.C. Circuits Lab. Experiments
• Learning the ADK Leads (Analog Discovery Kit)
• Solder-less breadboard use• Power Supply Operation• Voltmeter Operation• Series Circuits Measurements• Superposition Theorem• Homework problem
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Time to take the ADK out of the boxand connect to a USB port.Connect the Leads to ADK.
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The Leads are Keyedbottom view
color wires with white stripe on bottom, also bottom has small feet pads
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Note keyway notch
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Keyway pin
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ADK top view with leads plugged in
( note solid color wires are on top)
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Leads are color coded
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Leads we will be using today
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To make things easer I use a rubber band to keep the leads I am not using out of the way
Not used Leads in use
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Plug one end into the connector on the end of the leads from the ADK
(may be using solid copper 24 awg. insulated wires for leads with ends striped )
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Now your lead from the ADK is longer and you can plug the PIN end into your
solderless breadboard
Time for Questions ?
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Analog Discovery Design Kit
• Power Supply– Two fixed voltages +5 volts / -5 volts, 50 ma. MAX– Switchable ON / OFF commands– Unit powered by USB computer port, (cable included)
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With the ADK plugged into your computer USB port, click on the “W” short-cut logo.The status bar of the Waveforms Window should appear and a red LED on the ADK
near the place the USB cable plugs into should be on
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You are now connected
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If you see this window recheck your USB cable connections and try again
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To enable the power supplies click on the “Voltage” icon
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Power Supply Control Panel
Main power control
+5 volts control
-5 volt control
Power use indicator
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Power Supply Control Panel
Main power control - on
+5 volts - on
-5 volt - on
Power use indicator
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Power Supply Control PanelPower use indicator max current
70 MA 20 MA
10 MA
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Power Supply Control Panelpower over the 50 MA limit
Error message
At this time do not allow 1 amp to be drawn
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Power active
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To enable the Voltmeter click on the “more instruments” icon
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Then Voltmeter
This will unable 2 channel oscilloscope
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2 differential input Voltmeters
Note two options for Range , use auto range
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Voltmeter connections
Voltmeter #1 + input
Voltmeter #1 - input
Voltmeter #2 + input
Voltmeter #2 - input
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Two Resistors in Series Measurements
V+ Power Supply +5V (red)
V- Power Supply -5V (white)
Using the +5v and -5v supplies = 10 volts across node “A” and “B”, R1 & R2 are 1.0K ohms each.
Voltmeter 1, positive lead (orange)
Voltmeter 2, positive lead (blue)
Voltmeter 1 & 2, negative leads (orange/white & blue/white)
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Two Resistors in Series Measurements
R2 R1
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Two Resistors in Series Measurements
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Three Resistors in Series Measurements
Using the +5v and -5v supplies = 10 volts across node “A” and “B”, R1, R2 & R3 are 1.0K ohms each.
V+ Power Supply +5V (red)
V- Power Supply -5V (white)
Voltmeter 1, positive lead (orange)
Voltmeter 1, negative lead (orange/white)
Voltmeter 2, positive lead (blue)
Voltmeter 2, negative lead (blue/white)
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Three Resistors in Series Measurements
R1R2R3
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Three Resistors in Series Measurements
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Three Resistors in Series Measurements
Using the +5v and -5v supplies = 10 volts across node “A” and “B”,R1& R3 are 1.0K ohms, R2 is 100 ohms .
V+ Power Supply +5V (red)
V- Power Supply -5V (white)
Voltmeter 1, positive lead (orange)
Voltmeter 1, negative lead (orange/white)
Voltmeter 2, positive lead (blue)
Voltmeter 2, negative lead (blue/white)
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Three Resistors in Series Measurements
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Superposition Theorem
• Some circuits require more than one voltage or current source
• The superposition theorem is a way to determine currents and voltages in a circuit that has multiple sources by considering one source at a time
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Illustration of the superposition theorem.Thomas L. FloydElectronics Fundamentals, 6e
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Superposition Theorem Problemcurrent IR3
R1, R2, R3, all are 1000 ohms, Vs1=10 volts, Vs2=5 volts
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Superposition Theorempower supply connections
R1, R2, R3, all are 1000 ohms, Vs1=10 volts, Vs2=5 volts
V+ Power Supply +5V (red)
V- Power Supply -5V (white)
+ 10 v. + 5 v.
Power Supply +/-common (black)
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Superposition Theoremvoltmeter connectionsvoltmeter 1 across R3
Voltmeter 1 +Orange lead
Voltmeter 1 -Orange/white lead
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Superposition Theoremvoltmeter connectionsvoltmeter 2 across R2
Voltmeter 2 +Blue lead
Voltmeter 2 -Blue/white lead
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Superposition Theorem connectionsR1
R3
R2
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Superposition Theorem MeasurementsChannel 1 = R3Channel 2 = R2Vs1 = 10 v.Vs2 = 5 v.All Rs = 1000 ohms
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Homework
1. Series Circuits measurements with 2 to 4 resistors
2. Simple Series/Parallel measurements, 5 resistors or more – experiment around
3. Superposition measurements
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QuestionsAlan Rux at BVRIT