Digital Switching Units
Contents
BINARY SIGNALS Pages 2 to 14
1. AND and OR Circuits Page 2
2. Binary Signals and Logic States Page 5
3. Binary Signal represented by Voltage Levels Page 7
4. New Definitions for AND and OR Circuits Page 10
SIGNAL ANALYSIS Pages 15 to 22
5. Truth Tables Page 15
6. Determining Output Entries for Truth Tables Page 16
7. Inverter (NOT) Unit Page 20
LOGIC CIRCUIT TRACING Pages 23 to 34
8. Boolean Expressions and their Use Page 23
9. Evaluating Boolean Expressions Page 25
10. Logic Systems with NOT Switches Page 26
11. Drawing Logic Circuits from Boolean Expressions Page 28
12. More about Inversion Page 31
13. Other Switching Units Page 33
ELECTRICAL PRINICPLES OF SEMICONDUCTOR
SWITCHING UNITS Pages 35 to 45
14. Diode Switching Circuits Page 35
15. How Diode Gates Work Page 36
16. Inverter Circuit Page 43
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