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Experiment 1

Experiment 1. * Part A: Circuit Basics, Equipment, Sound Waves * Part B: Resistors, Circuit Analysis, Voltage Dividers * Part C: Capture/PSpice. Part A. Circuit Basics Equipment Sound Waves. Automobile Electronics. Previously all mechanical systems have become increasingly electronic

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Experiment 1

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  1. Experiment 1 * Part A: Circuit Basics, Equipment, Sound Waves * Part B: Resistors, Circuit Analysis, Voltage Dividers * Part C: Capture/PSpice

  2. Part A • Circuit Basics • Equipment • Sound Waves

  3. Automobile Electronics • Previously all mechanical systems have become increasingly electronic • Over the past few years, for example, the automobile has begun to use more computers (microcontrollers) • How many microcontrollers are typically found in a modern automobile?

  4. Automobile Electronics

  5. Physical Model for a DC circuit

  6. Physical Model for Resistance

  7. Physics vs. Electronics

  8. Ohm’s Law

  9. Alternating Current Generators http://micro.magnet.fsu.edu/electromag/java/generator/ac.html

  10. AC Circuits

  11. Review of Sinusoids

  12. General form of the Sinusoid

  13. ADJUST VOLTAGE LEVEL Do Not Use TOGGLE OUTPUT ON/OFF -25 to 0 VOLTS 0 to 6 VOLTS GROUND GROUND 0 to 25 VOLTS DC Source E3631A

  14. Function Generator 33120A

  15. Digital Multimeter 34401A

  16. Oscilloscope 54600B

  17. Impedance • Definition: a general measure of how a circuit affects the current through it. • Impedance = resistance + reactance • Impedance is used to refer to the behavior of circuits with resistors, capacitors and other components. • In a resistive circuit, impedance=resistance.

  18. Equipment Impedances • Each measuring device changes the circuit when you use it. • The impedance of the device helps you understand how much. • Device Impedances • Function Generator: 50 ohms • ‘Scope: 1Meg ohms • DMM (DC voltage): 10Meg ohms • DMM (AC voltage): 1Meg ohms • DMM (DC current): 5 ohms (negligible)

  19. Effect of Impedance on Circuit

  20. What to do

  21. How Ears Work http://members.aol.com/tonyjeffs/text/dia.htm

  22. Part B • Resistors • Circuit Analysis • Voltage Dividers

  23. Combining Resistors in Series

  24. Combining Resistors in Parallel

  25. Reading Resistors http://www.dannyg.com/javascript/res/resload.htm

  26. Measuring Voltage

  27. Voltage Dividers

  28. More on Voltage Dividers

  29. Kirchoff’s Laws

  30. Circuit Analysis (Kirchoff Method)

  31. Circuit Analysis (Combination Method)

  32. Protoboards

  33. Part C • Capture/PSpice • Circuit Analysis Software

  34. Capture

  35. Simulations

  36. PSpice

  37. Cursors

  38. Adding Traces

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