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Schematics 201 Lecture Topic: Electrical Symbols

Schematics 201 Lecture Topic: Electrical Symbols. 02-23-2011 . Agenda for the week. Discuss Logic Diagrams including Boolean Logic Gates. Start Assignment. Logic Diagrams .

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Schematics 201 Lecture Topic: Electrical Symbols

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  1. Schematics 201Lecture Topic: Electrical Symbols 02-23-2011

  2. Agenda for the week • Discuss Logic Diagrams including Boolean Logic Gates. • Start Assignment

  3. Logic Diagrams • A logic diagram is a diagram that represents the logic elements without engineering details. The logic symbol is the graphic representation of a logic function.

  4. Boolean Logic Gates. - Handout • Boolean logic is also used for circuit design in electrical engineering; here 0 and 1 may represent the two different states of one bit in a digital circuit, typically high and low voltage. Circuits are described by expressions containing variables, and two such expressions are equal for all values of the variables if, and only if, the corresponding circuits have the same input-output behavior. Furthermore, every possible input-output behavior can be modeled by a suitable Boolean expression.

  5. Boolean Logic • Basic logic gates such as AND, OR, and NOT gates may be used alone, or in conjunction with NAND, NOR, and XOR gates, to control digital electronics and circuitry. Whether these gates are wired in series or parallel controls the precedence of the operations. Refer to Truth Table in Handout for AND, OR, NOT, NAND, NOR, and XOR.

  6. Assignment # • Start assignment by making use of blocks and dynamic blocks for each symbol with the symbol description. Read and follow instructions.

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