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01 intro to electronics
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01 intro to electronics

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Transcript

  • 1. Basic Electronics
  • 2. Requirement for a Complete Circuit
    • Source
      • Battery, Generator, AC Voltage source, Photovoltaics, etc.
    • Load
      • Light bulb, motor, buzzer, heater, LED, LCD, Digital Circuit, etc.
    • Conductors
    • Switch
      • Slide, momentary, toggle
    Energizer + _
  • 3. Schematic Diagrams Energizer + _
  • 4. TERMS, SYMBOLS AND UNITS OF MEASUREMENT
    • Term Description Symbol Unit of Meas. Symbol
    • Charge Quantity of Accumulated Electrons Q Coulombs C
    • Voltage Electromotive Force E/V Volts V
    • Current Rate of Electron Flow I Amps A
    • Resistance Opposition to Electron Flow R Ohms Ω
    • Power Rate of doing Electrical Work P Watts W
  • 5.  
  • 6.  
  • 7.
    • Flow of Electrons in a copper wire
  • 8. Using a Multimeter: Measuring Resistance
    • Using the Ohmmeter
    • Measures resistance in a circuit.
    • The circuit must be “dead.”
    • Choose the  setting on the meter.
    • Insert the Red (+) test lead into the voltage/  connector on the meter. The black (-) test lead should be in the COM connector
    • If the component to be measured is mounted on a printed circuit board then disconnect one end of the component to be measured from the circuit.
    • Place the leads of the meter across (in parallel) the component to be measured.
  • 9. Using a Multimeter: Measuring Voltage
    • Using the Voltmeter
    •   1.Measures the electromotive force (voltage) between two points.
    • 2. The circuit must be “live.”
    • 3. Choose the AC voltage or DC voltage setting on the meter.
    • 4. Insert the Red (+) test lead into the voltage/  connector on the meter. The black (-) test lead should be in the COM connector
    • 5. Place the leads of the meter across (in parallel) the component to be measured.
    V V
  • 10. Using a Multimeter: Measuring Current
    • Using the Ammeter
    • Measures electron flow (current) in a circuit.
    • The circuit must be “live.”
    • Choose the AC amperage or DC amperage setting on the meter.
    • Move the red test lead from the voltage/  connector to the amperage connector on the meter.
    • Break the circuit and place the meter in series with the component to be measured.
    A
  • 11. ENGINEERING NOTATION
    •  
    • 10 12 10 9 10 6 10 3 10 0 10 ‑3 10 ‑6 10 ‑9 10 ‑12
    • ____________________________________________
    • Tera Giga Mega Kilo Base milli micro nano pico
    • T G M k ohms m μ n p
    • amps
    • volts
    • watts
    • SLL‑LSR
  • 12. Quiz Time!!!!
  • 13.  
  • 14.  
  • 15.  
  • 16.  
  • 17.  
  • 18.  
  • 19.