File Name: design and construct simple printed circuit board .zip
As you probably know, printed circuit boards are pretty ubiquitous in the world of electronics. You will probably find one in the devices that you use every day. However, people often use these electronic devices without considering or understanding the technology behind them.
Here are the basics of PCB design, components and construction to give you a better idea of how your electronics operate. In its simplest form, a PCB is a plastic board reinforced with glass.
Attached to this board are copper lines and pads which connect together, cut from a copper layer. These copper lines known as traces allow electrical charge to flow through the PCB, providing power to the different components that are situated systematically on the board. The copper traces function in the place of wires, guiding the electricity to the correct destination. The simplest PCBs are single sided boards one copper layer.
However, the copper traces can also be installed on both sides of the board, creating a double sided PCB. They become more and more complex as additional layers are added to the original design.
These new layers have their own copper trace formations. The copper connections cannot cross one another without the path of the electrical charge being compromised, so multi layered PCBs become necessary for advanced electronics. However, in the single sided boards one side is reserved for the copper trace and the other side houses the components.
On top of the copper layer sits the solder mask and the silkscreen. The solder mask is what makes the PCB its recognisable green colour. This has the function of insulating the copper from any metal parts that might accidently come into contact with it. However, parts of the metal will remain exposed so that they can be soldered to. The silkscreen sits on top of the solder mask again.
This has letters and numbers drawn on it which make the assembly of the PCB easier for the engineer or the hobbyist! If the copper traces behave like the skeleton of the PCB, acting as its basic structure — then the components are the vital organs.
Each one has a different function. They give the circuit the unique qualities that make it fit for its intended purpose. Depending on the device or electronic item a PCB is designed for, different components will be needed for different circuits. These components can consist of a wide range of electronic parts. Some common PCB components include:. Resistors: control the electric current as it passes through them.
LEDs: light emitting diode. Lights up when current flows through it, and will only allow current to flow in one direction.
Switches: can either allow current or block depending if they are closed or open. These components can be attached to the board in various ways. In general, an engineer will choose to use either the surface mount method or the through-hole method to attach the components. Following a schematic pattern and using the numbers on the silkscreen, the engineer uses solder to attach the components to the board. The engineer must be very careful when soldering.
As solder is a metal that an engineer melts so that they can manipulate it. Any stray blobs that are out of place and touch other metal components could cause the circuit to short.
This can be dangerous, causing fires or even small explosions. When the components are installed correctly, the PCB is ready to be used in a device. So, there you have it. The basic design, construction and components of a PCB. This is only an overview, as PCBs can get extremely complex with advanced electronics. However, the basic principles remain the same, even with 16 layered boards. Your email address will not be published. Bio Latest Posts. Latest posts by pcbtrain see all.
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This skill is called PCB design and is highly useful. Before you start drawing wires and stuff, you need to know what circuit you want to build. So you need a circuit diagram. I recommend starting with something simple. Like a blinking LED.
As you probably know, printed circuit boards are pretty ubiquitous in the world of electronics. You will probably find one in the devices that you use every day. However, people often use these electronic devices without considering or understanding the technology behind them. Here are the basics of PCB design, components and construction to give you a better idea of how your electronics operate. In its simplest form, a PCB is a plastic board reinforced with glass.
No worries. Just let me know where to send it takes 5 seconds :. Printed circuit boards PCB are the brain of almost all electronic and mechanical devices. As the center of command, PCBs are the most important part in electronic circuits and equipment. This is what this article is all about—to teach you all the PCB design basics so you can avoid the dreadful cost of missing the mark. In the following chapters, you will learn all the things you need to learn in the world of PCB design or PCB layout process, including:. But before we dive into the PCB design process, let us first get to know a couple of common PCB layout terminologies that you will bump into later on.
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strong method of construction with the component bodies and soldered joints on It is not difficult to design printed circuit boards for simple electronic projects.
A printed circuit board or PCB, is a plate or board used for placing the different elements that conform an electrical circuit that contains the electrical interconnections between them. The most simple printed circuit boards are the ones that contains copper tracks or interconnects only on one of its surfaces. These kinds of boards are known as 1 layer printed circuit board or 1 layer PCB. The most common PCB's manufactured today are the ones that contain 2 layers, that is, you can find interconnects in both surfaces of the board. However, depending on the physical complexity of the design PCB layout , the boards can be manufactured of 8 or more layers.
Here are the tools and material that you are going to need. If you already have a PCB layout then there's no problem you can just skip this step and go to the other one, you might as well write your design directly on the board, if you don't have plans doing the printing method. For me the best PCB board design software is Eagle Layout Editor, but for people who are looking for a less complicated software can use Microsoft Powerpoint. When you print your layout be sure to use a Laser Printer or a Photocopying Machine , Inkjet Printers wouldn't work since its ink is soluble with water so it won't transfer its ink on the PCB board. Use any kind of glossy paper, magazine papers would do. Use a laundry iron to iron your printed PCB layout to your board. Ironing the printed layout transfers the ink from the paper going to the PCB board.
Components are generally soldered onto the PCB to both electrically connect and mechanically fasten them to it. Printed circuit boards are used in all but the simplest electronic products. They are also used in some electrical products, such as passive switch boxes. Alternatives to PCBs include wire wrap and point-to-point construction , both once popular but now rarely used. PCBs require additional design effort to lay out the circuit, but manufacturing and assembly can be automated.
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