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Electrical Symbols — Power Sources

A voltage source is a two terminal device which can maintain a fixed voltage. An ideal voltage source can maintain the fixed voltage independent of the load resistance or the output current. However, a real-world voltage source cannot supply unlimited current. A voltage source is the dual of a current source. Real-world sources of electrical energy, such as batteries, generators, and power systems, can be modeled for analysis purposes as a combination of an ideal voltage source and additional combinations of impedance elements. 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.
The vector stencils library "Lamps, acoustics, measuring instruments" contains 35 element symbols of lamps, acoustic components, electrical measuring instruments.
Use these shapes for drawing electrical schematics and electronic circuit diagrams in the ConceptDraw PRO diagramming and vector drawing software extended with the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ engineering-electrical
Ammeter
Ammeter, indicator, meter, ammeter,
Frequency meter
Frequency meter, indicator, meter, frequency meter,
Voltmeter
Voltmeter, indicator, meter, voltmeter,
Galvanometer
Galvanometer, indicator, meter, galvanometer,
Oscilloscope
Oscilloscope, indicator, meter, oscilloscope,
Synchroscope
Synchroscope, indicator, meter, synchroscope,
Thermometer
Thermometer, indicator, meter, thermometer,
Wavemeter
Wavemeter, indicator, meter, wavemeter,
Standard bell with 1 line input
Standard bell with 1 line input, bell,
Single-stroke bell with 1 line input
Single-stroke bell with 1 line input, bell,
Siren with 1 line input
Siren with 1 line input, bell, siren,
Standard bell with 2 lines input
Standard bell with 2 lines input, bell,
Bell with 2 lines input
Bell with 2 lines input, bell,
Bell with 1 line input
Bell with 1 line input, bell,
Single-stroke bell with 2 lines input
Single-stroke bell with 2 lines input, bell,
Siren with 2 lines input
Siren with 2 lines input, bell, siren,
Buzzer with 1 line input
Buzzer with 1 line input, buzzer,
Buzzer with 2 lines input
Buzzer with 2 lines input, buzzer,
Buzzer with 2 lines input
Buzzer with 2 lines input, buzzer,
Buzzer with 1 line input
Buzzer with 1 line input, buzzer,
Indicating lamp with 1 line input
Indicating lamp with 1 line input, lamp, indicating lamp,
Non-indicating lamp with 1 line input
Non-indicating lamp with 1 line input, lamp, non-indicating lamp,
Indicating lamp with 2 lines input
Indicating lamp with 2 lines input, lamp, indicating lamp,
Non-indicating lamp with 2 lines input
Non-indicating lamp with 2 lines input, lamp, non-indicating lamp,
Signal lamp
Signal lamp, lamp, signal lamp,
Lamp
Lamp, lamp,
Fluorescent lamp 2 terminal
Fluorescent lamp 2 terminal, fluorescent lamp,
Fluorescent lamp 4 terminal
Fluorescent lamp 4 terminal, fluorescent lamp,
Speaker
Speaker, speaker,
Speaker with microphone
Speaker with microphone, speaker, microphone,
Microphone
Microphone, microphone,
Capacitor microphone
Capacitor microphone, microphone, capacitor,
Push-pull microphone
Push-pull microphone, microphone, push-pull,
Microphone with 1 line
Microphone with 1 line, microphone,
Microphone with 2 lines
Microphone with 2 lines, microphone,
Used Solutions

meter dashboard, quantitative indicators Meter Dashboard

meter dashboard, quantitative indicators
Meter dashboard solution extends ConceptDraw DIAGRAM software with templates, samples and vector stencils library with meter indicators for drawing visual dashboards showing quantitative data.
The circuit diagram example "Bipolar current mirror" was redesigned from the Wikipedia file: Current mirror.png.
[en.wikipedia.org/ wiki/ File:Current_ mirror.png]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. [creativecommons.org/ licenses/ by-sa/ 3.0/ deed.en]
"A current mirror is a circuit designed to copy a current through one active device by controlling the current in another active device of a circuit, keeping the output current constant regardless of loading. The current being 'copied' can be, and sometimes is, a varying signal current. Conceptually, an ideal current mirror is simply an ideal inverting current amplifier that reverses the current direction as well or it is a current-controlled current source (CCCS). The current mirror is used to provide bias currents and active loads to circuits. ...
Basic BJT current mirror.
If a voltage is applied to the BJT base-emitter junction as an input quantity and the collector current is taken as an output quantity, the transistor will act as an exponential voltage-to-current converter. By applying a negative feedback (simply joining the base and collector) the transistor can be "reversed" and it will begin acting as the opposite logarithmic current-to-voltage converter; now it will adjust the "output" base-emitter voltage so as to pass the applied "input" collector current.
The simplest bipolar current mirror ... implements this idea. It consists of two cascaded transistor stages acting accordingly as a reversed and direct voltage-to-current converters." [Current mirror. Wikipedia]
The circuit diagram example "Bipolar current mirror" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
Circuit diagram
Circuit diagram, junction, indicator, meter, galvanometer, ground connection, ground, fixed resistor, resistor, bipolar transistor, bipolar junction transistor, BJT, NPN,
Used Solutions
The vector stencils library "Qualifying" contains 56 qualifying symbols of radiation, polarity, phase, windings, wire, ground, connection, connector, coaxial, electret.
Use these signs to annotate or specify characteristics of objects in electrical drawings, electronic schematics, circuit diagrams, electromechanical drawings, and wiring diagrams, cabling layout diagrams.
"An electrical drawing, is a type of technical drawing that shows information about power, lighting, and communication for an engineering or architectural project. Any electrical working drawing consists of "lines, symbols, dimensions, and notations to accurately convey an engineering's design to the workers, who install the electrical system on the job".
A complete set of working drawings for the average electrical system in large projects usually consists of:
(1) A plot plan showing the building's location and outside electrical wiring.
(2) Floor plans showing the location of electrical systems on every floor.
(3) Power-riser diagrams showing panel boards.
(4) Control wiring diagrams.
(5) Schedules and other information in combination with construction drawings.
Electrical drafters prepare wiring and layout diagrams used by workers who erect, install, and repair electrical equipment and wiring in communication centers, power plants, electrical distribution systems, and buildings." [Electrical drawing. Wikipedia]
The signs example "Design elements - Qualifying" was drawn using the ConceptDraw PRO diagramming and vector drawing software extended with the Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park.
Qualifying symbols
Qualifying symbols, special connector, cable indicator, radiation, radiation travel, direction, positive polarity, phase, windings, wire, connection, zigzag, phase, windings, wire, connection, star, phase, windings, wire, connection, polygon, phase, windings, wire, connection, fork, phase, windings, wire, connection, double star, phase, windings, wire, connection, double delta, phase, windings, wire, connection, delta, phase, windings, wire, connection, neutral, conductor, negative polarity, multiple-phase, electret, coaxial line, coaxial,
Used Solutions

status dashboard, status indicators Status Dashboard

status dashboard, status indicators
Status dashboard solution extends ConceptDraw DIAGRAM software with templates, samples and vector stencils libraries with graphic indicators for drawing the visual dashboards showing status data.

Electrical Symbols — Composite Assemblies

Electronic components have two or more electrical terminals (or leads) aside from antennas which may only have one terminal. These leads connect to create an electronic circuit with a particular function (for example an amplifier, radio receiver, or oscillator). Basic electronic components may be packaged discretely, as arrays or networks of like components, or integrated inside of packages such as semiconductor integrated circuits, hybrid integrated circuits, or thick film devices. 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.

Electrical Symbols, Electrical Diagram Symbols

Electrical Diagram Symbols
When drawing Electrical Schematics, Electrical Circuit Diagrams, Power Systems Diagrams, Circuit and Wiring Diagrams, Digital and Analog Logic Schemes, you will obligatory need the electrical symbols and pictograms to represent various electrical and electronic devices, such as resistors, wires, transistors, inductors, batteries, switches, lamps, readouts, amplifiers, repeaters, relays, transmission paths, semiconductors, generators, and many more. Today these symbols are internationally standardized, so the diagrams designed using them are recognizable and comprehensible by specialists from different countries. Electrical Engineering Solution included to ConceptDraw Solution Park provides 26 libraries with 926 commonly used electrical schematic and electrical engineering symbols making the reality the easy drawing of Electrical diagrams, schematics and blueprints. Now you need only a few minutes to create great-looking Electrical diagram, simply choose required electrical design elements from the libraries, drag them on the needed places at the document and connect in a suitable way.

Electrical Symbols — Switches and Relays

In electrical engineering, a switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another. The mechanism of a switch may be operated directly by a human operator to control a circuit (for example, a light switch or a keyboard button), may be operated by a moving object such as a door-operated switch, or may be operated by some sensing element for pressure, temperature or flow. A relay is a switch that is operated by electricity. Switches are made to handle a wide range of voltages and currents; very large switches may be used to isolate high-voltage circuits in electrical substations. 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.

comparison chart, indicators Comparison Dashboard

comparison chart, indicators
Comparison dashboard solution extends ConceptDraw DIAGRAM software with samples, templates and vector stencils library with charts and indicators for drawing the visual dashboard comparing data.