Electrical and Electronics :
Electrical Engineering encompasses Everything in
Electronics.
Communications, Computers etc. are further specializations of
Electronics. So it is best to Identify Electrical Circuits with
Electrical Designs which excludes Active Devices. It can include
Electronic Products in the form of wireable modules.
So House and Factory wiring, Appliances like Ovens, Toasters, Power
Generation
and management; all these are electrical. Motors,
Generators,
Connectors, Relays, Contacters and Circuit Breakers are Electrical
Components.
A Radio or Power Inverter is
Electronic. When an Inverter or Electronic AC-DC Motor Drive is used
in a
Control panel or Power Supply system, that integration is shown
as an Electrical Circuit. I feel Simple Consumer Electronic
Circuits using Diodes, Transistors, SCR, Capacitors and Resistors can
also be taken under electrical circuits; when they are used in
Mains-Power or
Household Appliances. Solar Energy related circuits also can be
studied under Electrical Power Circuits.
In Electronics RF-Microwave and Communications is a specialization
area, Computer Hardware, Software, Internet form another major domain.
Networking and Wireless data communication overlaps both the above.
Power Electronics and Instrumentation are fundamental domains needed
for many. Industrial Automation with Process Control Instrumentation is
unique, but is supported by the fundamental domains. Many more finer
areas like Robotics and Medical Electronics have a much sharper focus.
Below is a Electrical Control Panel, It has a Strip Chart Recorder
which is electro-mechanical, It has a PLC Inside. A handheld PLC
Programming unit. The computer is showing the Ladder Logic Program. PLC
is based on a embedded uC. The DIN Controllers are Analog + Digital
circuits. So you see it is a Electrical Control Panel with Electronics
and the PLC Ladder Logic means, Software too.
This is a PID
Controller based Control Panel using a PLC
from GE Fanuc Automation. The
Computer is a 386 40MHz with 40MB HDD.
Anantha Narayan
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