basic 2 min read
An introduction to electric circuits
Standard symbols for electrical components Symbols are used for components in electrical circuit diagrams and some of the more common…
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basic 1 min read
Electrical potential and e.m.f.
The unit of electric potential is the volt (V) where one volt is one joule per coulomb. One volt is…
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Units associated with basic electrical quantities
SI units The system of units used in engineering and science is the Systeme Inter- ` nationale d’Unites (International system…
basic 1 min read
Multiplexers
Overview A multiplexer is a device that brings the concept of a rotary switch in analog electronics to the digital…
basic 3 min read
Multiple-bit adders
Ripple carry adder It is possible to create a logical circuit using multiple full adders to add N -bit numbers.…
basic 2 min read
Clock – Controlled Flip Flops
D flip-flop The D flip-flop is the edge-triggered variant of the transparent latch. On the rising (usually, although negative edge…
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Gated Flip Flop
Gated SR latch In some situations it may be desirable to dictate when the latch can and cannot latch. The…
basic 3 min read
Flip Flops
A flip-flop is a device very like a latch1 in that it is a bistable multi vibrator, having two states…
basic 3 min read
Logic Gates
NOT The simplest CMOS circuit: the NOT gate, or inverter. Although uncomplicated, it demonstrates the basic structure of a CMOS…
