EGR 101 1

EGR 101Introduction to Engineering

ThroughApplied Science I

Prof. Robert C. Helgeland

Department of Electrical and Computer EngineeringOffice: Room 324B – Dion Building

Telephone – 508-999-8487Email address – rhelgeland@umassd.edu

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Educational/Professional Background

• BSEE – University of Massachusetts Dartmouth

• MSEE– Northeastern University

• Registered Professional Engineer– Commonwealth of Massachusetts

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Areas of Interest -- Teaching

• Circuit Theory– Basic Circuit Analysis and Simulation

• Electronics– Analog and Digital

• Electromechanical Energy Conversion– Motors, Generators

• Power Electronics– Power Supplies, Inverters, Power Control

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Circuit Theory

R180 Ohm

R2

10 Ohm

R360 Ohm

R420 Ohm

R530 Ohm

V2

4 V/V

U1

DC 1MOhm

25.000 V+ -

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Electronics

U1

LM555CN

GND

1

DIS7OUT 3RST4

VCC

8

THR6

CON5TRI2

V112 V

C20uF

R68kOhm

OnOff

Key = S

V29 V

LED1

R2220 Ohm

K1

1mH 100 Ohm

K

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Electromechanical Energy Conversion

A15

B1

C10

D9

~U/D5

QA3

QB2

QC6

QD7

~CTEN4

~LOAD11~RCO

13

MAX/MIN12

CLK14

U1

74191N

U2

1Y07

1Y16

1Y25

1Y34

2Y09

2Y110

2Y211

2Y312

1C1

~1G2

~2C15

~2G14

A13

B3

74155N

U3A

7404N

21

U3B

7404N

43

U3C

7404N

65

V1

1000Hz 5V

5VVCC

U3D

7404N

89

L1

100mH

L2

100mH

L3

100mH

L4

100mH

R1

1.0Ohm_5%

R2

1.0Ohm_5%

R3

1.0Ohm_5%

R4

1.0Ohm_5%

D1

1N4004

D2

1N4004

D3

1N4004

D4

1N4004

U4

DCD_HEX

4 3 2 1

A

2.5 V

B

2.5 V

C

2.5 V

D

2.5 V

Q12N2222A

Q22N2222A

Q32N2222A

Q42N2222A

Pause

Key = P

Direction

Key = Space

STOP

2.5 V

CW

2.5 V

Vmotor12V

U3E7404N

1011

U5A

7408N

1

23

U3F

7404N

1213

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Power Electronics

V124 V

L1250uH

D1DIODE_VIRTUAL

R110 Ohm

XSC1

A B

G

T

XFG1

U1DC 1MOhm 13.164 V

+

-

Q1IRG4BC10U

C147uF

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Areas of Practical Experience

• Marine Electronic Systems– Radar – Communications

• AM, FM, SSB, SATCOM

– Echo Sounding and Sonar• Water Depth, Fish

– Navigation• GPS, Loran C, Electronic Charting

– Vessel Control• Autopilots

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Radar

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Communications

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Echo Sounding and Sonar

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Navigation

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Electronic Charting

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Vessel Control

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Commercial Fishing

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Tugs and Towing

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Military

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Passenger Ferries

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Specialty Transportation

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Oceanographic Research

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Recreational

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Restoration

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Classroom Activity #1

• Introduce yourself to the class

– Name

– Home town and high school

– Major

– Why you chose Engineering