Half subtractors and full subtractors will be explained in this section. The rules for the binary subtraction of two bits are given in Fig. 1. The top number in...
April 17, 2011
Binary Addition
Adding binary numbers is a very simple task. The rules (addition tables) for binary addition using two bits are shown in Fig. 8-1. The first three rules are obvious. Rule 4 says that, in...
April 16, 2011
Combinational Logic Circuit
Multiple gate functions can be combined to form more complex or different Boolean logic functions. Wiring together multiple gates are used to build a complex logic...
Logic Gates
Various forms of logical building blocks are available in integrated circuit form. These logical building blocks are called “gates,” with each gate having a distinct...
Introduction to Digital Electronics
Digital electronics is a large branch of the electrical-electronics field relating to those electronic functions used in performing logical functions. It encompasses every type of logical system from simple combinational logic control in a coffee pot...
April 02, 2011
Analog VS Digital
However, there are instances in which the input signal is naturally discrete in form, e.g., pulses from a particle detector, or "bits" of data from a switch, keyboard,...
How LEDs are Used?
LEDs can be powered by continuous current or by brief pulses of current. When operated continously, the current can be varied to change the light output.
LED Drive Circuit
Because LEDs are current dependently, it's usually...
Light Emitting Diodes (LED)
Semiconductor Light Source
When bombarded by light, heat, electrons and other form of energy, most semiconductor crystals will emit visible or infrared light. The best semiconductor light source, however, are PN junction diodes.
Light...
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