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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

Bubble diagrams in Landscape Design with ConceptDraw DIAGRAM

Bubble diagrams in Landscape Design with ConceptDraw DIAGRAM
Bubble Diagrams are the charts with a bubble presentation of data with obligatory consideration of bubble's sizes. They are analogs of Mind Maps and find their application at many fields, and even in landscape design. At this case the bubbles are applied to illustrate the arrangement of different areas of future landscape design, such as lawns, flowerbeds, playgrounds, pools, recreation areas, etc. Bubble Diagram helps to see instantly the whole project, it is easy for design and quite informative, in most cases it reflects all needed information. Often Bubble Diagram is used as a draft for the future landscape project, on the first stage of its design, and in case of approval of chosen design concept is created advanced detailed landscape plan with specification of plants and used materials. Creation of Bubble Diagrams for landscape in ConceptDraw DIAGRAM software is an easy task thanks to the Bubble Diagrams solution from "Diagrams" area. You can use the ready scanned location plan as the base or create it easy using the special ConceptDraw libraries and templates.