|circuit diagram (also known as an electrical diagram, wiring
diagram, elementary diagram, or electronic schematic) is a simplified
conventional pictorial representation of an electrical circuit.
It shows the components of the circuit as simplified standard
symbols, and the power and signal connections between the devices.
Arrangement of the components interconnections on the diagram
does not correspond to their physical locations in the finished
device.electronic circuits (schematics) & do-it-yourself
(DIY) circuit diagrams for hobbyists, students, professionals
etc. Electronics provides design services for the electronics
When designing any product, the first steps are to identify
the need the product will fill, and identify the market it
will be sold into. Then we consider the competing products
that can already perform the job - even 'unique' products
have some kind of competition, somewhere. Finally we build
up a specification for a new product positioned successfully
in the market. This is detailed a little more in our guide
to writing a new product spec.
This guide describes our process for The Printed Circuit Board
The CAD PCB layout consists of several layers, for illustration
purposes the holes, outline and component identification layers
can be combined into one diagram. When we produce PCBs for
clients, we use actual size checkplots during the design process.
A PCB will usually have mounting holes and may possibly have
cutouts, by cutting an actual size checkplot and placing it
in the enclosure, you can see how it will be positioned in
relation to other parts. We can also place components up against
the pad markings as a quick double check of sizing.
The secret to creativity is knowing how to hide your sources.
-- Albert Einstein
We put a bit of effort into the PCB design - it is somewheredesigning
a new electronic circuit board, typically one that is microprocessor
based with embedded firmware. This same process is used for
most products we design. Usually an industrial designer is
employed to produce the product enclosure or case, with labelling
and graphics. We deliver working prototypes and technical
documentation to the client - and then the product goes on
to beta testing, pilot run, and production release.
covering a wide range of categories in electronics like audio,
music,home/garden related,computer hardware,radio,robotics
etc to name a few. There are also links to sites that offer
hobby electronic kits and other electronics hobby related
stuff. Use the menu on the left to browse different circuit
categories. You can view the entire electronic circuit schematics
index by clicking here.
Electronic Circuit Design & Electronic Product Design
service at low costs & High Quality - Customized to your
More info about our electronics design service (circuit design)
ElectronicsZone recommends Carl's Electronics for ready to
assemble or fully assembled hobby electronic kits. If you
are looking to purchase complete electronic hobby kits, with
all the parts and building instructions.
<<Browse all Electronic kits here>>
Custom Electronics Design & Electronic Product Design
Services: Professional design of
Unlike a block diagram or layout diagram, a circuit diagram
shows the actual wire connections being used. The diagram
does not show the physical arrangement of components. A drawing
meant to depict what the circuit actually looks like is called
"artwork" or "layout".
Circuit diagrams are used for the design (circuit design),
construction (such as PCB layout), and maintenance of electrical
and electronic equipment.
3 European and Australian codes
4 Organization of drawings
5 Art Work
6 See also
7 External links Layout
The connections on the PCB should be identical to the circuit
diagram, but while the circuit diagram is arranged to be readable,
the PCB layout is arranged to be functional, so there is rarely
any visible correlation between the circuit and the layout.
PCB layout can be performed manually (using CAD) or in combination
with an Autorouter. The best results are usually still achieved
using atleast some manual routing - simply because the design
engineer has a far better judgement of how to arrange circuitry.
Surprisingly, many autorouted boards are often completely
illogical in their track routing - the program has optimised
the connections, and sacrificed any small amount of order
that may have been put in place by manual routing. Generally
autorouted boards are slightly harder for a technician to
repair or debug, for this reason. Historically, PCBs used
to be laid out by drawing or using stick on paper shapes on
mylar film, - that really WAS manual routing!
Common circuit diagram symbols (with US Resistor Symbol)On
a circuit diagram, the symbols for components are labelled
with a descriptor (or reference designator) matching that
on the list of parts. For example, C1 is the first capacitor,
L1 is the first inductor, Q1 is the first transistor, and
R1 is the first resistor (note that this is not written as
a subscript, as in R1, L1,…). The letters that