Electronic Principles

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Electronic Principles

Electronic Principles
Notice to Students
General
General - Continued
Table of Contents
Lesson 1. Electronic Principles
Magnetism
Artificial Magnets
Magnetic Polls
Theories of Magnetism
Figure 1. Molecular Magnets (Weber's Theory)
Figure 2. Iron Atom (Domain Theory)
Magnetic Fields
Figure 4. Bar Magnet Showing Lines Of Force.
Characteristics of Magnetic tines of Force.
Magnetic Effects.
Figure 6. Magnetized Nail
Magnetic Shielding
Figure 7. Effects Of A Magnetic Substance in a Magnetic Field.
Magnetic Shapes.
Inductance
Figure 9. Generation of An EMF In An Electrical Conductor
Figure 10. Movement Of Flux and Electrons in a Conductor .
Figure 11. Movement of a Magnetic Field Through a Conductor
Figure 12. Self- Inductance.
Forming Inductors
Figure 13. Inductance.
Figure 14. Inductor Types And Schematic Symbols
Figure 15. Inductance Factor (Turns)
Figure 16. Inductance Factor (Diameter).
Figure 17. Inductance Factor (Coil Lenght).
Figure 18. Inductance Factor (Core Material)
Layering the Coils.
Units of Inductance.
Growth and Decay of Current In An LR Series Circuit.
Figure 20. Growth And Decay of Current In An LR Series Circuit.
L/R Time Constant.
Figure 21. L/R Time Constant.
Deenergization of an LR Circuit.
Power Loss in an Inductor.
Figure 22. The Effect of Position of Coils On Mutual Inductance
Figure 23. Mutual Inductance
Series Inductors With Magnetic Coupling.
Figure 24. Series Inductors With Aiding Fields
Capacitance
Figure 27. Electrostatic Lines of Force Surrounding Two Like Charged Particles.
The Simple Capacitor.
Figure 29. Distortion Of An Electron's Orbits In A Dielectric.
Factors Affecting the Value of Capacitance
The Dielectric.
Voltage Rating of Capacitors.
Capacitor Losses.
Charging and Discharging a Capacitor.
Figure 32. Electron Motion During Charge.
Charging and Discharging a Capacitor. - Continued
Figure 33. Discharging a Capacitor
Discharging.
Figure 34. Charge oF an RC Series Circuit
Discharge Cycle.
Table 1. Summary of Capacitive and Inductive Characteristics
Figure 35. Discharge of An RC Series Circuit
Universal Time Constant Chart.
Figure 37. Universal Time Constant Chart for RC and RL Circuits
Universal Time Constant Chart. - Continued
Figure 38. Solution for Universal Time Constant Problem.
Capacitors in Series and Parallel
Figure 39. Capacitors in Series
Capacitors in Parallel.
Figure 41. Paper Capacitor
Mica Capacitors.
Electrolytic Capacitors.
Figure 44. Construction Of An Electrolytic Capacitor
Electrolytic Capacitors. - Continued
Variable Capacitors
Figure 45. Rotor-Stator Type Variable Capacitor
Color Codes For Capacitors. - Continued
Figure 47 .6 - Dot Color For Mica and Molded Paper Capacitors.
Color Codes For Capacitors. - Continued
Figure 48. 6 - Band Color Code for Tubular Paper Dielectric Capacitors
Figure 49. Ceramic Capacitor Color Code
Figure 50. Mica Capacitor Color Code
Disadvantages of DC (Compared to AC.
Voltage Waveforms.
Magnetic Fields
Figure 53. Magnetic Field Around A Current- Carrying Conductor.
Magnetic Fields - Continued
Figure 54. The Magnetic Field Around a Current- Carrying Conductor, Detailed View
Magnetic Field of a Coil.
Polarity of an Electromagnetic Coil.
Figure 57. Left-Hand Rule for Coils
Losses in An Electromagnetic Field
Figure 58. Simple Alternating - Current Generator
Figure 59. Basic Alternating - Current Generator
Figure 60. Left-Hand Rule for Generators
Frequency
Figure 61 Period of Sine Wave
Figure 62. Wavelenght
Figure 63. Wavellenght Measurement .
Figure 64. Maximum or Peak Value
Figure 65. Peak and Peak - to - Peak Values
Effective Value of a Sine Wave.
Effective Value of a Sine Wave. - Continued
Figure 67. Various Values Used to Indicate Sine Wave Amplitude
Sine Waves in Phase.
Figure 69. Voltage Waves 90 Out Phase
Figure 70. Voltage Waves 180 Out of Phase
Ohm's Law In AC Circuits.
Conclusion
Task 2. Describe Basic Fundamentals of Semiconductors. Including PNP and NPN Transistors.
Application of SolidState Devices.
Semiconductor Competiton
Figure 71. Size Comparison of Electron Tubes and Semiconductors
Energy Bands
Figure 72. Energy Arrangement in Atoms
Figure 73. Typical Crystal Structure.
Figure 75. Germanuim Crystal doped with Arsenic.
Figure 76. Yhe PN junction Diode.
Alloy or FusedAlloy.
PN Junction Operation.
Figure 79. Current Flow in the N-Type Material
Figure 81. PN Junction Barrier Formation
Figure 82. Forward- Biased PN Junction
PN Junction Application.
Figure 85. Half - Wave And Metalic Rectifiers
Figure 86. Semiconductor Identification Code
Standard Diode Color Code System.
Transistors
Transistor Fundamentals.
Transistor Theory.
NPN Transistor Operation
Figure 89. Forward Biased Junction In An NPN Transistor.
Figure 90. Reverse - Biased Junction In An NPN Transistor
Figure 91. NPN Transistor Operation.
Summary
PNP Transistor Operation.
Figure 93. Forward Biased Junction In A PNP Transistor
PNP Junction Interaction.
Figure 95. PNP Transistor Operation
Conclusion
Lesson 1. Electonic Principles
AN/USM281C Oscilloscope
Vertical Amplifier.
Main Frame Modes.
Time Base Generator Modes.
Figure 97. Main Frame Controls
Trig Source
Figure 98. Vertical Amplifier Controls
Dual Time Base Front Panel
Mode Switches
Amplifier Source Switches
Delayed Time/Division Switch, Intensify Switch.
Variable Potentiometer/Switch.
Slope Switch.
Oscilloscope Rear Panel.
Main Frame Controls.
Simplified Operating Procedures.
DualTrace Display.
Delayed SweepSingle Trace Display.
Delayed SweepDualTrace Display.
Conclusion
Practical Exercise 1
Requirement
Lesson 1. Practical Exercise - Answer
Requirement
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Electronic Principles

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