What Do PCB Design Services Do

By Linda Maynard


Many view modern day electronics with complete bafflement, perhaps that is largely due to the fact that things cannot be seen to be happening. However, the world of electronics is here to stay. Any device with electrical applications will utilise electronics. Therefore many modern companies elect to use these PCB design services.

Everywhere you look in modern life you can see electrical devices. The telephone that you hold in your hand, the computer that you use at work, even the checkout register at your local store when you buy your groceries. They all have one thing in common, they contain printed circuit boards.

For anyone who has ever opened up a device can not have failed to notice these printed circuit boards. The most common varieties will be either tan or green in appearance. There appears to be so many things stuck there, and this is where the bafflement starts.

Put simply an electronic circuit operates the same way as an electrical circuit, but it is much, much smaller. So power is introduced at point A, it operates point B and leaves at point C. This can be equated to a lighting circuit in a room, power comes in, and as soon as the switch is operated it can continue to light a lamp, and then complete the circuit by going to earth.

It does look very confusing to the average person. Mainly because they don't recognise the components, or understand what they do. It also seems to be very small, and crammed in together.

The board is a good place to start, this is made from very thin material bonded together to form a laminate of even thickness. On one side you will see metal strips, or tracks. These send the current where it is meant to go, and nowhere else. The opposite side of the board houses the components. If you look closely you will see that there is a design layout printed beneath these components.

This is one example of a circuit plan which has been created to achieve the result that the client wants. It is useful to the engineer as it gives him an indication about which component goes where on the board. A larger schematic plan is also utilised as this will give the values of the components. Each copy is referred against the other.

Once the arrangement has been thought out and laid down as a plan, it is time to actually build a working model. So the correct value of resistor is positioned in the correct location and soldered into position. This will carry on with the other components until the board is fully populated. Effectively this is now a full scale prototype, and can be used to ensure that it fits where it is meant to, also that it operates how the customer wishes.

It does make sense to use PCB design services. They are professional in their dealings with clients. They listen to what the client wants, and then produce a working example.




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