# Electrical Diagram Software

## Electrical Diagram Software

Electrical engineering and electronic engineering are extensive fields dedicated to research, design, development, manufacturing, test, and montage of systems and devices of electricity, electronics, microelectronics, telecommunications, power engineering, etc. These fields use various types of schemes, diagrams, technical drawings and require a special precision, accuracy and attention at their construction and using. The availability of modern specialized software has great importance for electrical engineers and electronic specialists, it assists them in drawing Electrical schematics and diagrams, Electrical drawings and Wiring schemes, Electronic Circuit schematics, etc. One of such software is ConceptDraw PRO extended with Electrical Engineering Solution that offers powerful drawing tools, wide variety of samples and libraries with numerous quantity of predesigned electrical symbols and vector objects of electrical devices. All they help design with minimal efforts Electrical diagrams and blueprints of any complexity, now drawing process is easy even for beginners. Read more

## Bipolar current mirror - Circuit diagram

The circuit diagram example "Bipolar current mirror" was redesigned from the Wikipedia file: Current mirror.png.
[en.wikipedia.org/wiki/File:Current_mirror.png]
"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. Read more
Circuit diagram
Used Solutions

## Electrical Symbols — Transistors

A transistor is a semiconductor device used to amplify or switch electronic signals and electrical power. It is composed of semiconductor material usually with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals changes the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Today, some transistors are packaged individually, but many more are found embedded in integrated circuits. 26 libraries of the Electrical Engineering Solution of ConceptDraw PRO 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. Read more

## Transistors - Vector stencils library

The vector stencils library "Transistors" contains 30 symbols of transistors.
Use these shapes for drawing electronic schematics and 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.
BJT, PNP, env
BJT, PNP
BJT, NPN, env
BJT, NPN
JFET, P, env
JFET, P
JFET, N, env
JFET, N
Transverse biased base, PNP, env
Transverse biased base, PNP
Transverse biased base, NPN, env
Transverse biased base, NPN
Ohmic, NPIN, env
Ohmic, NPIN
Ohmic, NPIP, env
Ohmic, NPIP
Ohmic, PNIN, env
Ohmic, PNIN
Ohmic, PNIP, env
Ohmic, PNIP
Unijunction FET, P, env
Unijunction FET, P
Unijunction FET, N, env
Unijunction FET, N
Darlington transistor, PNP, env
Darlington transistor, PNP
Darlington transistor, NPN, env
Darlington transistor, NPN
Transistor latch, env
Transistor latch
Used Solutions

## Electrical 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. Read more

## Active Directory Diagram

Active Directory (AD) is a directory management service introduced by Microsoft Corporation for Windows domain networks. This service uses the Lightweight Directory Access Protocol (LDAP) and provides quick access to the included information about large structural units such as domains, organizational units, sites, and also about simple objects, such as users names with detailed information about them - contacts information, access rights, etc. Active Directory Diagram is a representation of the network structure in clear graphical format. It is a scheme of correlations of service components with preset degree of detailed elaboration. Active Directory Diagram makes the work of network administrators with Active Directory network structure more easy and convenient, allows plan and service the network quicker and more qualitatively. The help of ConceptDraw PRO software extended with Active Directory Diagrams solution from the Computer and Networks area is indispensable for easily and quickly creation the highly detailed Active Directory Diagrams. Read more

## Design elements - Transistors

The vector stencils library "Transistors" contains 30 symbols of transistors drawing electronic schematics and circuit diagrams.
"A transistor is a semiconductor device used to amplify and switch electronic signals and electrical power. It is composed of semiconductor material with at least three terminals for connection to an external circuit. A voltage or current applied to one pair of the transistor's terminals changes the current through another pair of terminals. Because the controlled (output) power can be higher than the controlling (input) power, a transistor can amplify a signal. Today, some transistors are packaged individually, but many more are found embedded in integrated circuits.
The transistor is the fundamental building block of modern electronic devices, and is ubiquitous in modern electronic systems. ...
Transistors are categorized by:
(1) Semiconductor material...: the metalloids germanium ... and silicon ... in amorphous, polycrystalline and monocrystalline form; the compounds gallium arsenide ... and silicon carbide ..., the alloy silicon-germanium ..., the allotrope of carbon graphene ...
(2) Structure: BJT, JFET, IGFET (MOSFET), insulated-gate bipolar transistor, "other types"
(3) Electrical polarity (positive and negative): n–p–n, p–n–p (BJTs); n-channel, p-channel (FETs)
(4) Maximum power rating: low, medium, high
(5) Maximum operating frequency: low, medium, high, radio (RF), microwave frequency...
(6) Application: switch, general purpose, audio, high voltage, super-beta, matched pair
(7) Physical packaging: through-hole metal, through-hole plastic, surface mount, ball grid array, power modules...
(8) Amplification factor..." [Transistor. Wikipedia]
The shapes example "Design elements - Transistors" 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. Read more
Transistor symbols
Used Solutions

## Electrical Symbols — MOSFET

The metal–oxide–semiconductor field-effect transistor (MOSFET, MOS-FET, or MOS FET) is a type of transistor used for amplifying or switching electronic signals. Although the MOSFET is a four-terminal device with source (S), gate (G), drain (D), and body (B) terminals, the body (or substrate) of the MOSFET is often connected to the source terminal, making it a three-terminal device like other field-effect transistors. Because these two terminals are normally connected to each other (short-circuited) internally, only three terminals appear in electrical diagrams. The MOSFET is by far the most common transistor in both digital and analog circuits, though the bipolar junction transistor was at one time much more common. 26 libraries of the Electrical Engineering Solution of ConceptDraw PRO 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. Read more

## Electrical Symbols — IGFET

There are several types of insulated gate field-effect transistors (IGFETs) in common use. The early term metal oxide semiconductor field-effect transistor (MOSFET) is still in use, and MOSFET is usually acceptable as a generic term for IGFETs. The metal oxide, and the insulation in the IGFET, is the insulating material between the gate terminal and the substrate between the source and drain terminals. This insulator must have very low leakage, of course, but another requirement for good performance of the transistor is that the dielectric constant of the material must be very high. 26 libraries of the Electrical Engineering Solution of ConceptDraw PRO 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. Read more