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www.Hobby-Electronics.info Electronics Course


Table of Contents

1. DC and AC Voltages
DC Voltage Sources
AC Voltage Sources
Measuring voltages using a multimeter
2. Current and Resistors
Introduction
Resistors in series
Resistors in parallel
Creating a voltage divider using resistors
Measuring current using a multimeter
Measuring resistance using a multimeter
3. Power dissipation
Introduction
Power dissipation in a resistor
Power dissipation of series-connected resistors
Power dissipation of parallel-connected resistors
4. Capacitors
Introduction
The impedance of a capacitor
Phase shift
Relation between voltage and current
Frequency filters
ESR
Timer circuits
Types of capacitors
5. Diodes
Introduction
An AC Voltage Rectifier
LEDs
Zener Diodes
Testing diodes using a multimeter
6. Bipolar Transistors
Introduction
The transistor as a switch
The Darlington
The transistor as an amplifier
Testing transistors using a multimeter
7. Project: A simple adjustable DC power supply
The transformer
The diagram
8. Differential Amplifier
Typical example
DC Current Source
9. Operational Amplifier
Introduction
Opamp used as an amplifier
Opamp used as a threshold switch
Opamp used as a voltage-controlled current source
Diode and transistor tester
10. Lab Power Supply
The diagram
Voltage feedback
Current limitation
Protective circuitry
Choosing your components
Assembly
11. Heatsink
Introduction
Calculations
12. Power Amplifiers
Introduction
Emitter follower
Balance amplifier
Bias
Darlingtons
Opamp
13. Inductors
Introduction
The impedance of an inductor
Relation between voltage and current
Frequency filters
Quality factor
14. Decibels (dB)
Power and Voltage Ratios
Reference-related dBs
15. Vocal Eliminator
Introduction
Schematic
Choosing components
Testing
Assembly
16. Symmetric power supply
Introduction
Up to about 25mA
Up to 1A
17. JFETs
Introduction
JFET amplifier
JFET current source
18. MOSFETs
Introduction
MOSFET amplifier
Dual-gate MOSFETs
19. LC filters
Introduction
High pass filter
Band pass filter
Band pass filter with a smaller band
Resonance
Tuned circuit
20. Miscellaneous filters
Introduction
Coupled filters
Twin T-filter
Bridged T-filters
21. Frequency-independant voltage devider
Introduction
HF probe
Attenuator in an oscilloscope
22. DIACs, SCRs and TRIACs
DIAC
SCR
TRIAC
23. TV Deflection Circuit
Warning
The picture tube
Deflection coils
Deflection circuit
Linearity correction
S-Correction
EW-Correction
Practical Examples
24. Automatic volume control
Introduction
Schematic
Choosing components
Power supply
A. Calculating RMS value
B. Inside semiconductors
Inside a diode
P type and N type semiconductors
Joining P and N together
Zener diodes
Varicap diodes
Inside a bipolar transistor
Joining three layers of P and N together
Applying voltages across a transistor
Inside a JFET
Joining three layers of P and N together
Applying voltages across a JFET
Inside a MOSFET
Joining three layers of P and N together
Applying some voltages across an enhancement MOSFET
Depletion MOSFETs
C. Buffer capacitor
Calculation of the value of a buffer capacitor
ESR
D. Amplifier stability
Introduction
Stability
E. Complex math
Calculations on a capacitor and resistor in series.
Calculations on an inductor and resistor in series.
Calculations on a capacitor and inductor in series.
Calculations on a tuned LC circuit.
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