ConceptDraw
DIAGRAM 17

# Electrical Symbols — Logic Gate Diagram

In electronics, a logic gate is an idealized or physical device implementing a Boolean function; that is, it performs a logical operation on one or more logical inputs, and produces a single logical output. Depending on the context, the term may refer to an ideal logic gate, one that has for instance zero rise time and unlimited fan-out, or it may refer to a non-ideal physical device

Pic. 1. Logic Gate Diagram Library

ConceptDraw DIAGRAM is a powerful software for creating professional looking electrical diagram quick and easy. For this purpose you can use the Electrical Engineering solution from the "Engineering" area of ConceptDraw Solution Park.

Electrical Engineering Solution for ConceptDraw DIAGRAM provides the stencils libraries of ready-to-use predesigned 926 vector symbols, templates and samples that make your electrical drawing quick, easy and effective.

26 libraries of the Electrical Engineering Solution of ConceptDraw DIAGRAM make your electrical diagramming simple, efficient, and effective. You can simply and quickly drop the ready-to-use objects from libraries into your document to create the electrical diagram.

Pic. 2. Electrical Engineering symbols

Electrical diagram software will assist you in drawing your electrical diagrams with minimal effort and makes it very easy for beginners. Electrical symbols and smart connectors help present your electrical drawings, electrical schematic, wiring diagrams and blue prints.

Pic. 3. Electrical Symbols — Logic Gate Diagram

Most of the electrical symbols can be changed in their appearance, styles and colors according to users' requirements. Electrical symbols are used to represent various electrical and electronic devices in a schematic diagram of an electrical or electronic circuit.

The following table lists some logic gate diagram electrical symbols in our electrical diagram software.

 Symbol Meaning Electrical Symbols — Logic Gate Diagram AND gate NAND gate (NOT AND) NAND gate (NOT AND) OR gate NOR gate (NOT OR) NOR gate (NOT OR) NOT gate (inverter) NOT gate (inverter) EX-OR (Exclusive-OR) gate EX-NOR (Exclusive-NOR) gate Operational Amplifier Alternative Operational Amplifier Norton op-amp Buffer Gate with Open-Collector Output Gate with Schmitt Trigger Input Group

Compound logic gates AND-OR-Invert (AOI) and OR-AND-Invert (OAI) are often employed in circuit design because their construction using MOSFETs is simpler and more efficient than the sum of the individual gates.

## How to Create an Electrical Diagram Using Logic Gate Diagram Library

• Open ConceptDraw DIAGRAM new document page.
• Select libraries from Electrical Engineering section.

• There are a few different ways to place an object into your drawing:

• Click on an object and then click on the document, at the place you want the object to be inserted.
• Perform a drag-and-drop from the library to your document.
• Double click on an object’s icon in the library to place an object in the center of your document.
• Select the Smart Connector tool . To connect elements using this tool, drag the connector from one connect dot to another.You can use Layers to place connections on different layers.
• Result: Schematic of Circuit.

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Picture: Electrical Symbols — Inductors
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Picture: Electrical Symbols — Thermo
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Picture: Electrical Symbols — MOSFET
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DIAGRAM 17