If one visits the lovely city of Philadelphia during the December holiday season, they will not fail to notice a number of spectacular light shows that are held at various points around the metro. These complex exhibitions are only made possible by electronic machines called mergers, which give trained professionals the ability to control the large numbers of lights involved. If one takes apart one of these machines, they will find several electronic components arranged in a DMX PCB.
These Printed Circuit Boards, or Etched Wiring Boards, as they are sometimes called, can be found in virtually every modern electronic device. Without them, modern high volume production would be impossible, while small scale, personal projects would be out of the question.
The sheets are usually made of copper foil covered in an insulated material, which is bonded to the metal with a heat resistant resin. The circuitry is then etched, or added on. Additional components may be added if needed.
Etched Wiring Boards alone cannot make up an electronic device, and other parts need to be added in order for it to be complete. The most important of these is a micro processor. This minuscule component is the most important part of a DMX merger, and without it, the amazing machine cannot do its work. The tiny chip accepts programs, handles the complex calculations, and executes the results. An Arithmetic Logic Unit does the math, while a Control Unit handles the implementation. Contemporary chips add a cache to speed up their operations.
No Printed Circuit Board would be complete without the sparkling light emitting diodes. These tend to be used as indicators, for instance, for showing when the power goes on or off. Larger ones are used as a form of power sipping illumination. These tiny lights are made up of a clear outer shell, which protects the filament and other components, and also diffuses the light. There is also a minuscule reflector, positive and negative inputs among other bits and pieces.
Perhaps the most essential parts of an electronic device, next to circuit boards and micro processors, are transistors. These critical components usually have at least 3 pins; when electrical power is applied to the centre one, current passes from one of the side pins to the other. Because of this behaviour, transistors are used as switches. They are also used as amplifiers.
Another ubiquitous component of an electronic circuit is a capacitor. These come in various sizes and configurations, and they act much like batteries, storing electrical charge. These tiny components are made up of two metal plates separated by a non-electrical substance known as a dielectric. This can be ceramic, cellulose, porcelain or similar materials. Glass is frequently used for high voltage applications, while ceramics are used in antennas, X-ray machines and other high frequency applications.
Like a great soccer team, all these parts need to be integrated into a DMX PCB board in order to work. To do this, soldering irons are used. These range from the cheap but functional ones found in virtually every electronics store, to the specialized kind used in automated manufacturing processes. They all come with an insulated body, and a sharp metal tip, and are heated with electricity or gas.
These Printed Circuit Boards, or Etched Wiring Boards, as they are sometimes called, can be found in virtually every modern electronic device. Without them, modern high volume production would be impossible, while small scale, personal projects would be out of the question.
The sheets are usually made of copper foil covered in an insulated material, which is bonded to the metal with a heat resistant resin. The circuitry is then etched, or added on. Additional components may be added if needed.
Etched Wiring Boards alone cannot make up an electronic device, and other parts need to be added in order for it to be complete. The most important of these is a micro processor. This minuscule component is the most important part of a DMX merger, and without it, the amazing machine cannot do its work. The tiny chip accepts programs, handles the complex calculations, and executes the results. An Arithmetic Logic Unit does the math, while a Control Unit handles the implementation. Contemporary chips add a cache to speed up their operations.
No Printed Circuit Board would be complete without the sparkling light emitting diodes. These tend to be used as indicators, for instance, for showing when the power goes on or off. Larger ones are used as a form of power sipping illumination. These tiny lights are made up of a clear outer shell, which protects the filament and other components, and also diffuses the light. There is also a minuscule reflector, positive and negative inputs among other bits and pieces.
Perhaps the most essential parts of an electronic device, next to circuit boards and micro processors, are transistors. These critical components usually have at least 3 pins; when electrical power is applied to the centre one, current passes from one of the side pins to the other. Because of this behaviour, transistors are used as switches. They are also used as amplifiers.
Another ubiquitous component of an electronic circuit is a capacitor. These come in various sizes and configurations, and they act much like batteries, storing electrical charge. These tiny components are made up of two metal plates separated by a non-electrical substance known as a dielectric. This can be ceramic, cellulose, porcelain or similar materials. Glass is frequently used for high voltage applications, while ceramics are used in antennas, X-ray machines and other high frequency applications.
Like a great soccer team, all these parts need to be integrated into a DMX PCB board in order to work. To do this, soldering irons are used. These range from the cheap but functional ones found in virtually every electronics store, to the specialized kind used in automated manufacturing processes. They all come with an insulated body, and a sharp metal tip, and are heated with electricity or gas.
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