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EE 2303 EE 2303 Intro to Electrical EngineeringIntro to Electrical Engineering

Orientation

www.ece.mtu.edu/ee/faculty/gearcher/EElabs

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PeoplePeople

• Glen Archer – Lab Coordinator (gearcher@mtu.edu)• Grant Soehnel (

ghsoehne@mtu.edu)• Senjuti Basu (sbasu@...)• Zhou Wang (wzhou@...)• Kumar Vanga (kumarvl@...)

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OverviewOverview

Safety PrecautionsTool kit Course Overview & ExpectationsBrief Intro to Lab Experiment

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Course Overview & ExpectationsCourse Overview & Expectations

AttendanceBook reviewPresentationsPre-labsQuizzesPractical Exam

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Lab ReportsLab Reports

http://www.ece.mtu.edu/labs/EElabs/Lab_Policies.htm

Everything turned in single spaced and typed Due at next lab unless announced otherwise 10% reduction each day lab is late EVERYTHING must be turned in by Friday of

week 14

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Report FormatReport Format

Cover SheetObjective – short paragraphProcedureDiscussionConclusionAppendix (not always needed)Try to stick to formal writing in

everything but the conclusion

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EE 2303EE 2303

Voltage and Current measurements

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VocabularyVocabulary

Electric Circuit VoltageCurrentParallelSeries

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VoltageVoltage

Potential Difference between two points

Always has polarity (+/-)

Measure voltage in parallel

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Current: Amperes (A)Current: Amperes (A)

The flow of electrical charge through a conductor or circuit element

Current flow requires a continuous path

Measure current in SERIES

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Electric circuitsElectric circuits

Current flow requires a continuous path Voltage can appear across an open circuit

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Series CircuitsSeries Circuits

Current in Series circuits is the same

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Parallel CircuitsParallel Circuits

Voltage in parallel circuits is the same Va = Vb = Vc

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ResistorsResistors Carbon Wire wound Precision Power Rating

4-stripe resistor

  A   B   C   D  

5-stripe resistor

A   B   C   D   E  

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Color Digit (A) (B) Multiplier C Tolerance (D)Black 0 1 Bad

Brown 1 10 1% Boy

Red 2 100 2% R

Orange 3 1000 3% O

Yellow 4 10K 4% Y

Green 5 100K Great

Blue 6 1 M Flame Proof Britain

Violet 7 10 M Very

Grey 8 Good

White 9 Wife

Gold 0.1 5% Go

Silver 0.01 10% See

None 20% Now

4-stripe resistor

  A   B   C   D  

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BreadboardsBreadboards Power and Ground Components Rows and Columns

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Lodestar 8102 Power SupplyLodestar 8102 Power Supply

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Lodestar 8102 ControlsLodestar 8102 Controls

ON/OFF Mode Selector

Volt – Fine and Coarse

Current limiter

Output Terminals

Meters

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Reading AssignmentReading Assignment

Read ABCs of DMMs

– We’ll have a quiz on this material next week

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SummarySummary Lab Safety Voltage Current Electric Circuits Resistors Color code Breadboards Circuit construction techniques Power Supply: 8102 Lodestar DC Power

Supply

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Where to Get More Information??Where to Get More Information??

www.ece.mtu.edu/labs