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Electronic Technology. Welcome to Lesson #1 DC Review – LU 1101 (with Mr. Cooper) . Lesson Plan – Kevin C. Cooper Electronic Technology – LU 1101- Introduction and DC Review First Cycle Objectives – Pg. 1 of 2 - Students will:. List items required for daily shop activities.

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electronic technology

Electronic Technology

Welcome to Lesson #1

DC Review – LU 1101

(with Mr. Cooper)

slide2

Lesson Plan – Kevin C. CooperElectronic Technology – LU 1101- Introduction and DC ReviewFirst Cycle Objectives – Pg. 1 of 2 - Students will:

  • List items required for daily shop activities.
  • List the 10 most important shop rules.
  • Identify and follow all safety rules.
  • State the procedure for extra help and make up.
  • Review the shop grading policy.
  • Review Basic Atomic Structure.
  • Review Ohm’s Law, Watt’s Law, Kirchoff’s Laws.
  • Review resistor networks and the use of DVOM’s.
  • Calculate, construct and test series circuits.
  • Calculate, construct and test parallel circuits.
slide3

Lesson Plan – Kevin C. CooperElectronic Technology – LU 1101- Introduction and DC ReviewFirst Cycle Objectives – Pg. 2 of 2 - Students will:

11. Calculate, construct and test combination circuits.

12. Troubleshoot various faults in DC circuitry.

13. Simulate various DC circuits on computers.

  • Practice clean, safe, mature, proper use of lab equipment.
  • Maintain complete, accurate, neat, permanent notes.
  • Write a “Type-5” technical Lab Report.
  • Develop a list of on-line resources.
  • Begin an electronic student portfolio.
  • Pass three written tests. (Safety, Series, Parallel)
  • Identify schematic symbols and diagrams, reactive components, time constants, complex DC circuitry.
things you need every day
Things you need every day!
  • Clean Shop Tee Shirt or Shop Sweat Shirt......every day, no exceptions!!!
  • Notebook (3 ring binder with paper).
  • Scientific Calculator.
  • Pencil and Pen.
  • Text Book.
  • Items specified in your student handbook.
  • Small hand tools and Safety Glasses.
  • BRAIN.
shop rules
Shop Rules
  • Follow dress code. (Shop Shirts, No Jackets…)
  • Maintain a business like atmosphere.
  • No horseplay or throwing things.
  • No video games or illegal software.
  • Follow safety rules.
  • Take and keep all notes.
  • Clean the lab every afternoon.
  • Respect the property of others.
  • No food in the lab.
  • No talking while the instructor is talking.
things you need to know
Things you need to know:
  • Mr. Cooper is available for extra help after school every day upon request.
  • If you are absent for one day, get the notes you missed from another student, and the lab you missed from Mr. Cooper as soon as possible.
  • If you are not sure what to do, ask your instructor. There are no stupid questions.
  • Request extra help before you fall behind.
slide7

Grading Policy

  • Student Written Notebook: 10%
  • Student Electronic Portfolio: 10%
  • Daily Theory & Book Assignments: 10%
  • Daily Computer & Web assignments: 10%
  • Daily Lab Circuits & Experiments: 20%
  • Weekly Written Tests: 20%
  • Weekly Lab Reports: 20%
  • Extra projects & missions: +/- 10%
notes on mr atom
Notes on Mr. Atom:
  • All materials are made of atoms.
  • Protons and Neutrons reside in the Nucleus.
  • Electrons orbit around the nucleus at the speed of light.
  • Current flow is the movement of free electrons.
  • Like charges repel, unlike charges attract. (Coulomb’s Law)
more notes on mr atom
More notes on Mr. Atom:
  • The number of electrons in the valence shell determines the electrical properties.
  • Conductors have 1 – 3 valence electrons.
  • Semiconductors have 4 valence electrons.
  • Insulators have 5 – 8 valence electrons.
  • Balanced atoms have an equal number of protons and electrons.
  • An atom that loses an electron is a positive ion. An atom that gains an electron is a negative ion.
mr ohm is our good friend
Mr. Ohm is our good friend!
  • Ohm’s Law defines the relationship between Current, Voltage, and Resistance.
  • Ohm’s Law states that current is directly proportional to voltage and inversely proportional to resistance.
  • Current flow is the movement of free electrons (from negative toward positive). The unit for current flow is the Ampere. The letter “I” stands for Current. Ex: I = 1.5 A.
mr ohm is so cool
Mr. Ohm is so cool!
  • Voltage is the force that moves electrons. The unit for voltage is the Volt. The letters “E” and “V” both stand for Voltage.
  • Resistance is the opposition to current flow. The unit for resistance is the Ohm (shown as the Greek letter Omega). The letter “R” stands for resistance.
  • Formulas you need to know forever: E=I*R, I=E/R, R=E/I.
mr watt is also very cool
Mr. Watt is also very cool!
  • P = Power in Watts. P=I*E
  • Here’s those groovy magic pies again!
  • Note: E = V
  • Note: There are three power Formulas… P = I*V, P = I^2*R, P = E^2/R
slide14

This is an Omega which means Ohms.

Ground is a Zero Volt reference.

This is a Ground Symbol.

metric prefixes are great
Metric Prefixes are great!
  • Mega = 1,000,000 = 1 EE 6 = M
  • Kilo = 1,000 = 1 EE 3 = K
  • (Units Volt, Ohm, Amp have no exponent.)
  • milli = 0.001 = 1EE-3 = m
  • micro = 0.000 001 = 1 EE-6 = u
  • nano = 0.000 000 001 = 1 EE-9 = n
  • pico = 0.000 000 000 001 = 1 EE-12 = p
slide16

1 0 00 Ohm

1 K-Ohm

+/- 5%

Resistor

lots of resistors
Series resistors: Rt=R1+R2+R3

Parallel resistors: Rt=1/(1/R1+1/R2+1/R3)

Lots of Resistors!!!
love your meter
LOVE YOUR METER!
  • An ammeter must be connected in series to measure current!!
  • A voltmeter is connected in parallel to measure voltage!
  • An ohmmeter must never be connected to a “live” circuit when measuring resistance!!
series circuits are very exciting
Series circuits are very exciting!
  • Current flow is constant in series.
  • Voltage drops add up to the total voltage.
  • 1. Rt = R1+R2+R3
  • 2. It = Et/Rt
  • 3. It = IR1 = IR2 = IR3
  • 4. ERx = IRx*Rx
  • 5. PRx = IRx*ERx
calculate the eirp values
Calculate the EIRP values!
  • 1. Rt=R1+R2+R3=3K-Ohms
  • 2. It=Et/RT=4mA
  • 3. It=IR=IR2=IR3=4mA
  • 4. ER1=IR1*R1=4V, ER2=IR2*R2=4V, ER3=IR3*R3=4V
  • 5. P=I*E=16mW each=64mW total
parallel circuits are super awesome
Parallel circuits are super awesome!
  • Voltage drops in a parallel circuit are constant.
  • Branch currents in a parallel circuit add up to the total current.
  • 1. Et=ER1=ER2=ER3
  • 2. IRx=ERx/Rx
  • 3. It=IR1+IR2+IR3
  • 4. RT=ET/It
  • 5. PRx=IRx*ERx
calculate the eirp values1
Calculate the EIRP values!
  • 1. ET=ER1=ER2=ER3=12V
  • 2. IR1=ER1/R1=1mA, IR2=ER2/R2=1mA, IR3=ER3/R3=1mA
  • 3. It=IR1+IR2+IR3=3mA
  • 4. Rt=Et/It=4K-Ohms
  • 5. P=I*E=3mW each=9mW total.
  • Check: RT=1/(1/R1+1/R2+1/R3)
dc review assignments
DC Review Assignments:
  • Assignments:
  • Read Chapters 1 – 8.
  • Do Chapter Self-Tests. (1-8) Write Q&A.
  • Open Basic Circuit Challenge.
  • Do the following assignments. Have your instructor verify and record each assignment before proceeding to the next.
  • Color Code, Ohm’s Law 1, Ohm’s Law 2, Power 1, Power 2, Series Sources, Series 1, Series 2, Parallel 1, Parallel 2, S-P 1, S-P 2.
more fantastic dc circuits
More fantastic DC circuits!
  • Do the following assignments. Have your instructor verify and record each assignment before proceeding to the next.
  • Open DC Circuits Challenge.
  • Complete: Series 1,2,3; Parallel 1,2,3; Series-Parallel 1,2,3,4,5; Basic Networks; TS Series; TS Parallel; TS S-P.