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The vector stencils library "Analog and digital logic" contains 40 element symbols of logic (threshold) gates, bistable current switches, current controllers, regulators, electrical generators, and amplifiers.
Use it for drawing the digital and analog functions in electronic circuit diagrams and electrical schematics.
"Analogue electronics (or analog in American English) are electronic systems with a continuously variable signal, in contrast to digital electronics where signals usually take only two different levels. The term "analogue" describes the proportional relationship between a signal and a voltage or current that represents the signal." [Analogue electronics. Wikipedia]
"Digital electronics, or digital (electronic) circuits, represent signals by discrete bands of analog levels, rather than by a continuous range. All levels within a band represent the same signal state. 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.
In most cases the number of these states is two, and they are represented by two voltage bands: one near a reference value (typically termed as "ground" or zero volts) and a value near the supply voltage, corresponding to the "false" ("0") and "true" ("1") values of the Boolean domain respectively.
Digital techniques are useful because it is easier to get an electronic device to switch into one of a number of known states than to accurately reproduce a continuous range of values.
Digital electronic circuits are usually made from large assemblies of logic gates, simple electronic representations of Boolean logic functions." [Digital electronics. Wikipedia]
The example "Design elements - Analog and digital logic" 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.
Analog and digital logic elements
Analog and digital logic elements, three-state buffer, switch point, summing amplifier, signal waveform, potentiometer, positional servomechanism, positional servo, operational amplifier, negative logic, dot, logic gate, inverter, integrator, amplifier, generalized integrator, function generator, flip-flop, latch, flip-flop, electronic multiplier, multiplier, electronic function generator, function generator, digital, crystal, crystal clock, signal generator, converter, clock, buffer, analog, amplifier, IO port, input and output port,
Used Solutions
This example engineering drawing showing the hydraulic directional control valve usage with floating motor and pressure compensated pump is redesigned using the ConceptDraw PRO diagramming and vector drawing software from the Wikimedia Commons file: DCV 17.jpg.
[commons.wikimedia.org/ wiki/ File:DCV_ 17.jpg]
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
[creativecommons.org/ licenses/ by-sa/ 3.0/ deed.en]
"Directional control valves are one of the most fundamental parts in hydraulic machinery as well and pneumatic machinery. They allow fluid flow into different paths from one or more sources. They usually consist of a spool inside a cylinder which is mechanically or electrically controlled. The movement of the spool restricts or permits the flow, thus it controls the fluid flow. ...
The spool (sliding type) consists of lands and grooves.The lands block oil flow through the valve body. The grooves allow oil or gas to flow around the spool and through the valve body. There are two fundamental positions of directional control valve namely normal position where valve returns on removal of actuating force and other is working position which is position of a valve when actuating force is applied. There is another class of valves with 3 or more position that can be spring centered with 2 working position and a normal position. ...
Directional control valves can be classified according to:
(1) number of ports;
(2) number of positions;
(3) actuating methods;
(4) type of spool." [Directional control valve. Wikipedia]
The fluid power equipment drawing example "Directional control valve" is included in the Mechanical Engineering solution from the Engineering area of ConceptDraw Solution Park.
Hydraulic equipment schematic
Hydraulic equipment schematic, spring, variable spring, non-variable spring, reservoir, pressure compensator, hydraulic pump, four-port, flow path, four-port, crossed, flow path, flow path, floating motor, filter, electric linear, solenoid, dot, line, junction, closed path, closed port, callout, box, flow path,
Used Solutions
"In mathematics, the Euclidean algorithm, or Euclid's algorithm, is a method for computing the greatest common divisor (GCD) of two (usually positive) integers, also known as the greatest common factor (GCF) or highest common factor (HCF). ...
The GCD of two positive integers is the largest integer that divides both of them without leaving a remainder (the GCD of two integers in general is defined in a more subtle way).
In its simplest form, Euclid's algorithm starts with a pair of positive integers, and forms a new pair that consists of the smaller number and the difference between the larger and smaller numbers. The process repeats until the numbers in the pair are equal. That number then is the greatest common divisor of the original pair of integers.
The main principle is that the GCD does not change if the smaller number is subtracted from the larger number. ... Since the larger of the two numbers is reduced, repeating this process gives successively smaller numbers, so this repetition will necessarily stop sooner or later - when the numbers are equal (if the process is attempted once more, one of the numbers will become 0)." [Euclidean algorithm. Wikipedia]
The flowchart example "Euclidean algorithm" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Mathematics solution from the Science and Education area of ConceptDraw Solution Park.
Euclid's algorithm flow chart
Euclid's algorithm flow chart, terminator, start, end, rectangle, process, action, decision, connector,
Used Solutions

Internet solutions with ConceptDraw PRO

Web Site Layout
ConceptDraw is a good means of visualization of information of any kind as it features powerful graphic capabilities. The conception of using ConceptDraw and open formats by the programs that work with Internet can be used for displaying any data and any structure in Internet.
The vector stencils library "Road signs" contains 58 symbols of road signs for labeling the road and route maps, directional and transit maps, street and locator maps.
"Traffic signs or road signs are signs erected at the side of or above roads to give instructions or provide information to road users.
... many countries have adopted pictorial signs or otherwise simplified and standardized their signs to overcome language barriers, and enhance traffic safety. Such pictorial signs use symbols (often silhouettes) in place of words and are usually based on international protocols. Such signs were first developed in Europe, and have been adopted by most countries to varying degrees." [Traffic sign. Wikipedia]
The pictograms example "Road signs - Vector stencils library" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Directional Maps solution from the Maps area of ConceptDraw Solution Park.
www.conceptdraw.com/ solution-park/ maps-directional
Danger place
Danger place, danger place,
Intersection
Intersection, intersection,
Intersection 2
Intersection 2, intersection,
Bend
Bend, bend,
Double bend
Double bend , double bend ,
Two-way traffic
Two-way traffic, two-way traffic,
Mobile bridge
Mobile bridge, mobile bridge,
Light signal
Light signal, light signal,
Pedestrian crossing
Pedestrian crossing, pedestrian crossing,
Road work
Road work, road work,
Back-up
Back-up, back-up,
Give way
Give way, give way,
Crossing
Crossing, crossing,
Stop
Stop, stop,
Roundabout
Roundabout, roundabout,
Pass this side
Pass this side, pass this side,
Direction to be followed
Direction to be followed, direction to be followed,
One-way street
One-way street, one-way street,
Cycle track
Cycle track, cycle track,
No entry
No entry, no entry,
No entry both directions
No entry both directions, no entry both directions,
No power vehicles
No power vehicles, no power vehicles,
No U-turns
No U-turns, no U-turns,
No passing without stopping
No passing without stopping, no passing without stopping,
No standing and parking
No standing and parking, no standing and parking,
No parking
No parking, no parking,
Speed limit
Speed limit, speed limit,
Height limit
Height limit, height limit,
Width limit
Width limit, width limit,
Weight limit
Weight limit, weight limit,
Priority over oncoming traffic
Priority over oncoming traffic, priority over oncoming traffic,
Streetcar or regular buses
Streetcar or regular buses, streetcar or regular buses,
Taxi status
Taxi status, taxi status,
Beginning that speed 30-Zone
Beginning that speed 30-Zone, speed, zone,
End that speed 30-Zone
End that speed 30-Zone, speed, zone, end,
Pedestrian crossing 2
Pedestrian crossing 2, pedestrian crossing,
Police
Police, police,
Hotel
Hotel, hotel,
Breakdown service
Breakdown service, breakdown service,
Restaurant
Restaurant, restaurant,
P + R
P + R, P + R,
Restroom
Restroom, restroom, WC,
Fuel
Fuel, fuel,
Telephone
Telephone, telephone,
Recommended speed
Recommended speed, recommended speed,
Nodal point of a motorwa
Nodal point of a motorwa, nodal point of a motorway,
Parking
Parking, parking,
Dead end
Dead end, dead end,
Motorway
Motorway, motorway,
End motorway
End motorway, end motorway,
Populated zone
Populated zone, populated zone,
End populated zone
End populated zone, end populated zone,
Parking with clock
Parking with clock, parking with clock,
Number sign (motorway)
Number sign (motorway), number sign, motorway,
Exit
Exit, exit,
Direction to place
Direction to place, direction to place,
Board of announcement of exit
Board of announcement of exit, board of announcement of exit,
Number sign (federal highway)
Number sign (federal highway), number sign, federal highway,
Used Solutions