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The circuit diagram example "Amplifier" was redesigned from the Wikimedia Commons file: Slika br.5.JPG.
[commons.wikimedia.org/ wiki/ File:Slika_ br.5.JPG]
This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. [creativecommons.org/ publicdomain/ zero/ 1.0/ deed.en]
"An electronic amplifier, amplifier, or (informally) amp is an electronic device that increases the power of a signal. It does this by taking energy from a power supply and controlling the output to match the input signal shape but with a larger amplitude. In this sense, an amplifier modulates the output of the power supply.
There are four basic types of electronic amplifier: the voltage amplifier, the current amplifier, the transconductance amplifier, and the transresistance amplifier. A further distinction is whether the output is a linear or nonlinear representation of the input. Amplifiers can also be categorized by their physical placement in the signal chain." [Amplifier. Wikipedia]
The circuit diagram example "Amplifier" 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, zener diode, switch point, signal waveform, junction, ground connection, ground, fixed capacitor, capacitor, amplifier, air inductor, inductor, MOSFET, metal-oxide semiconductor field-effect transistor, P-type channel, MOSFET, metal-oxide semiconductor field-effect transistor, N-type channel,
Used Solutions

Electrical Symbols, Electrical Diagram Symbols

Electrical Diagram Symbols
How to create Electrical Diagram? It’s very easy! All you need is a powerful software. It wasn’t so easy to create Electrical Symbols and Electrical Diagram as it is now with electrical diagram symbols offered by the libraries of Electrical Engineering Solution from the Industrial Engineering Area at the ConceptDraw Solution Park.
This solution provides 26 libraries which contain 926 electrical symbols from electrical engineering: Analog and Digital Logic, Composite Assemblies, Delay Elements, Electrical Circuits, Electron Tubes, IGFET, Inductors, Integrated Circuit, Lamps, Acoustics, Readouts, Logic Gate Diagram, MOSFET, Maintenance, Power Sources, Qualifying, Resistors, Rotating Equipment, Semiconductor Diodes, Semiconductors, Stations, Switches and Relays, Terminals and Connectors, Thermo, Transformers and Windings, Transistors, Transmission Paths,VHF UHF SHF.

Electrical Drawing Software and Electrical Symbols

ConceptDraw DIAGRAM is a powerful software for creating professional looking electrical circuits quick and easy. For this purpose you can use the Electrical Engineering solution from the "Engineering" area of ConceptDraw Solution Park.
Electrical Drawing Software provides the 26 stencils libraries of ready-to-use predesigned vector electrical symbols, templates and samples that make your electrical drawing quick, easy and effective.

Circuits and Logic Diagram Software

ConceptDraw DIAGRAM provides Electrical Engineering solution from the Industrial Engineering Area of ConceptDraw Solution Park.
Electrical Engineering solution helps you create quick and easy: Electrical schematics, Digital and analog logic designs, Circuit and wiring schematics and diagrams, Power systems diagrams, Maintenance and repair diagrams, Circuit board and amplifier diagrams, Integrated circuit schematics.

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
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 — 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 — Maintenance

Electrical maintenance - troubleshooting electrical circuit.
The diagrams are a big help when workers try to find out why a circuit does not work correctly.
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 Design Software

ConceptDraw DIAGRAM is a powerful electrical design software. The Electrical Engineering solution from the Engineering area of ConceptDraw Solution Park allows you easy, quick and effective draw the professional looking electrical, circuit and wiring diagrams and schemes, maintenance and repair diagrams for electronics and electrical engineering, and many other types of diagrams.
The vector stencils library "Video and audio" contains 50 symbols of devices and equipment.
Use it for drawing audio and video system layouts, cabling floor plans, electrical circuit schematic and wiring diagrams in the ConceptDraw PRO diagramming and vector drawing software.
The vector stencils library "Video and audio" is included in the Electric and Telecom Plans solution from the Building Plans area of ConceptDraw Solution Park.
Audio amplifier
Audio amplifier, audio amplifier,
RF amplifier
RF amplifier, RF amplifier,
Video amplifier
Video amplifier, video amplifier,
Generic automatic switcher
Generic automatic switcher, generic automatic switcher,
Generic A/V switcher
Generic A/V switcher, audio, video, switcher,
Generic source component
Generic source component, source component,
System components
System components, system component,
Headphone jack
Headphone jack, headphone jack,
Infrared receiver
Infrared receiver, infrared receiver,
Infrared transmitter
Infrared transmitter, infrared transmitter,
Music keypad
Music keypad, music keypad,
Mono speaker outlet
Mono speaker outlet, mono, speaker outlet,
Stereo speaker outlet
Stereo speaker outlet, stereo, speaker outlet,
Speaker ceiling
Speaker ceiling, speaker ceiling,
Speaker in-wall
Speaker in-wall, speaker, in-wall,
Speaker subwoofer
Speaker subwoofer, speaker subwoofer,
Speaker weatherproof
Speaker weatherproof, speaker, weatherproof,
Buzzer and bleeper
Buzzer and bleeper, buzzer, bleeper,
Piezo transducer
Piezo transducer, piezo transducer,
Microphone
Microphone, microphone,
Earphone
Earphone, earphone,
Cable antenna outlet
Cable antenna outlet, cable antenna outlet,
Master antenna outlet
Master antenna outlet, master antenna outlet,
Volume control
Volume control, volume control,
Volume control
Volume control, volume control,
Flush mounted intercom unit
Flush mounted intercom unit, flush mounted, intercom unit,
Master intercom and directory unit
Master intercom and directory unit, master intercom, directory unit,
Floor mounted microphone outlet
Floor mounted microphone outlet, floor mounted, microphone outlet,
Wall mounted microphone outlet
Wall mounted microphone outlet, wall mounted, microphone outlet,
Ceiling mounted speaker
Ceiling mounted speaker, ceiling mounted, speaker,
Speaker horn
Speaker horn, speaker horn,
Wall mounted speaker
Wall mounted speaker, wall mounted, speaker,
Call in switch
Call in switch, call in switch,
Ceiling mounted paging speaker
Ceiling mounted paging speaker, ceiling mounted, paging speaker,
Wall mounted paging speaker
Wall mounted paging speaker, wall mounted, paging speaker,
Flush mounted data floor outlet
Flush mounted data floor outlet, flush mounted, data floor outlet,
Flush mounted data floor outlet
Flush mounted data floor outlet, flush mounted, data floor outlet,
Flush mounted data / telephone floor outlet
Flush mounted data / telephone floor outlet, flush mounted, data, telephone, floor outlet,
Surface mounted data floor outlet
Surface mounted data floor outlet, surface mounted, data floor outlet,
Surface mounted data floor outlet
Surface mounted data floor outlet, surface mounted, data floor outlet,
Surface mounted data / telephone floor outlet
Surface mounted data / telephone floor outlet, surface mounted, data, telephone, floor outlet,
Data outlet
Data outlet, data outlet,
Telephone outlet
Telephone outlet, telephone outlet,
Telephone, data outlet
Telephone, data outlet, telephone, data, outlet,
Wall mounted telephone outlet
Wall mounted telephone outlet, wall mounted, telephone outlet,
Equipment cabinet
Equipment cabinet, equipment cabinet,
Free standing equipment rack
Free standing equipment rack, free standing, equipment rack,
Plywood backboard
Plywood backboard, plywood backboard,
Terminal cabinet with plywood backing
Terminal cabinet with plywood backing, terminal cabinet, plywood backing,
Wall mounted equipment rack
Wall mounted equipment rack, wall mounted, equipment rack,
Used Solutions
"In electronics, a vacuum tube, electron tube (in North America), tube, or thermionic valve or valve (in British English) is a device controlling electric current through a vacuum in a sealed container. The simplest vacuum tube, the diode, contains only two elements; current can only flow in one direction through the device between the two electrodes, as electrons emitted by the hot cathode travel through the tube and are collected by the anode. Addition of a third and additional electrodes allows the current flowing between cathode and anode to be controlled in various ways. The device can be used as an electronic amplifier, a rectifier, an electronically controlled switch, an oscillator, and for other purposes.
Vacuum tubes mostly rely on thermionic emission of electrons from a hot filament or a cathode heated by the filament. Some electron tube devices rely on the properties of a discharge through an ionized gas." [Vacuum tube. Wikipedia]
"The EL34 is a thermionic valve or vacuum tube of the power pentode type. It has an international octal base (indicated by the '3' in the part number) and is found mainly in the final output stages of audio amplification circuits and was designed to be suitable as a series regulator by virtue of its high permissible voltage between heater and cathode and other parameters. The American RETMA tube designation number for this tube is 6CA7. Russian analog is 6P27S (Cyrillic: 6П27C )" [EL34. Wikipedia]
This circuit diagram sample was redrawn from the Wikipedia Commons file: EL34 schematics (circuit diagram).gif. [commons.wikimedia.org/ wiki/ File:EL34_ schematics_ %28circuit_ diagram%29.gif]
The example "Circuit diagram - EL 34 schematics" 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.
EL34 shemathics
EL34 shemathics, tube triode, tube pentode, transformer, magnetic-core, terminal, switch point, junction, fixed resistor, resistor, fixed capacitor, capacitor, direction, flow, transmission path, chassis, frame ground connection,
Used Solutions

Electrical Symbols, Electrical Schematic Symbols

ConceptDraw DIAGRAM diagramming and vector drawing software enhanced with Electrical Engineering Solution from the Industrial Engineering Area of ConceptDraw Solution Park offers you powerful tools and libraries with incredibly large quantity of predesigned electrical symbols as electrical schematic symbols for easy designing professional looking Electrical Schematics.
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

Electrical Symbols — Analog and Digital Logic

Digital electronics or digital (electronic) circuits are electronics that handle digital signals – discrete bands of analog levels – rather than by continuous ranges (as used in analogue electronics). All levels within a band of values represent the same numeric value. Because of this discretization, relatively small changes to the analog signal levels due to manufacturing tolerance, signal attenuation or parasitic noise do not leave the discrete envelope, and as a result are ignored by signal state sensing circuitry.

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 — Integrated Circuit

An integrated circuit (also referred to as an IC, a chip, or a microchip) is a set of electronic circuits on one small plate ("chip") of semiconductor material, normally silicon. This can be made much smaller than a discrete circuit made from independent electronic components. ICs can be made very compact, having up to several billion transistors and other electronic components in an area the size of a human fingernail.
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.

Wiring Diagrams with ConceptDraw DIAGRAM

Wiring Diagrams with ConceptDraw DIAGRAM
A wiring diagram is a comprehensive diagram of each electrical circuit system showing all the connectors, wiring, terminal boards, signal connections (buses) between the devices and electrical or electronic components of the circuit. It also identifies the wires by wire numbers or colour coding. Wiring diagrams are necessary to troubleshoot and fix electrical or electronic circuits.
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