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Electronic Technology

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

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  1. Electronic Technology Welcome to Lesson #1 DC Review – LU 1101 (with Mr. Cooper) 

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. 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%

  8. Meet this awesome atom.

  9. 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)

  10. 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.

  11. 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.

  12. 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.

  13. 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

  14. This is an Omega which means Ohms. Ground is a Zero Volt reference. This is a Ground Symbol.

  15. 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

  16. 1 0 00 Ohm 1 K-Ohm +/- 5% Resistor

  17. Series resistors: Rt=R1+R2+R3 Parallel resistors: Rt=1/(1/R1+1/R2+1/R3) Lots of Resistors!!!

  18. 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!!

  19. 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

  20. 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

  21. 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

  22. 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)

  23. An awesome Series-Parallel Circuit

  24. 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.

  25. 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.

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