How do PCBs work?

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I know that there’s layers but how do they transport electricity? How do they know where to send the electricity?

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9 Answers

Anonymous 0 Comments

Things are connected to other things by little conductive “wires” called traces running through these different layers, which lets traces cross without shorting. If you look up an image of a single layer PCB, all the traces are visible and don’t cross each other.

If you’re asking about how electricity can be directed to different places without moving parts, that would be the magic of the solid state transistor, and the logic gates that can be constructed out of different configurations of transistors.

Anonymous 0 Comments

Things are connected to other things by little conductive “wires” called traces running through these different layers, which lets traces cross without shorting. If you look up an image of a single layer PCB, all the traces are visible and don’t cross each other.

If you’re asking about how electricity can be directed to different places without moving parts, that would be the magic of the solid state transistor, and the logic gates that can be constructed out of different configurations of transistors.

Anonymous 0 Comments

A PCB is fundamentally just a bunch of wires that connect components and a structural boad you can attach them to. It does not do anything actively at all to the signal. That is the task of the component you add to it.

You can do the same with a board that is not conducive, socket with pint that extends out the back, or just component pins that go through the board and then connect with wires. There is no need to solder the wires you can just wrap the wire around the pin, it is very quick to do with a special tool. There were machines that could do this automatically.

The result can be abroad that looks like [this](https://commons.wikimedia.org/wiki/File:Computerplatine_Wire-wrap_backplane_detail_Z80_Doppel-Europa-Format_1977_%28close_up%29.jpg#/media/File:Computerplatine_Wire-wrap_backplane_detail_Z80_Doppel-Europa-Format_1977.jpg) on the backside

The PCB is a way to replace the wire with copper layers in a board, it make manufacturing faster and cheaper. It is not functionally any different to wire wrapping.

Wire wrapping was a very common way for complex electronic manufacturing in the 1960 and early 1970 until PCB manufacturing could replace it. I would say it is informational a bit forgotten today because it is very simple to do and it good way for prototyping or to do some customer elections at home. You can avoid soldering and marking PCBs. It does take up more space.

That a PCB does nothing is a bit of a simplification because you can make a filter and another passive element if you work at a high frequency.

PCB also has an advantage over wire wrapping and high frequency because you can exactly control where the wires are relative to each other and their exact length and shape relative to themself. Singles in wires interact with their surroundings and controlling that is simpler with a PCB than wire wrapping.

Anonymous 0 Comments

Things are connected to other things by little conductive “wires” called traces running through these different layers, which lets traces cross without shorting. If you look up an image of a single layer PCB, all the traces are visible and don’t cross each other.

If you’re asking about how electricity can be directed to different places without moving parts, that would be the magic of the solid state transistor, and the logic gates that can be constructed out of different configurations of transistors.

Anonymous 0 Comments

A PCB is fundamentally just a bunch of wires that connect components and a structural boad you can attach them to. It does not do anything actively at all to the signal. That is the task of the component you add to it.

You can do the same with a board that is not conducive, socket with pint that extends out the back, or just component pins that go through the board and then connect with wires. There is no need to solder the wires you can just wrap the wire around the pin, it is very quick to do with a special tool. There were machines that could do this automatically.

The result can be abroad that looks like [this](https://commons.wikimedia.org/wiki/File:Computerplatine_Wire-wrap_backplane_detail_Z80_Doppel-Europa-Format_1977_%28close_up%29.jpg#/media/File:Computerplatine_Wire-wrap_backplane_detail_Z80_Doppel-Europa-Format_1977.jpg) on the backside

The PCB is a way to replace the wire with copper layers in a board, it make manufacturing faster and cheaper. It is not functionally any different to wire wrapping.

Wire wrapping was a very common way for complex electronic manufacturing in the 1960 and early 1970 until PCB manufacturing could replace it. I would say it is informational a bit forgotten today because it is very simple to do and it good way for prototyping or to do some customer elections at home. You can avoid soldering and marking PCBs. It does take up more space.

That a PCB does nothing is a bit of a simplification because you can make a filter and another passive element if you work at a high frequency.

PCB also has an advantage over wire wrapping and high frequency because you can exactly control where the wires are relative to each other and their exact length and shape relative to themself. Singles in wires interact with their surroundings and controlling that is simpler with a PCB than wire wrapping.

Anonymous 0 Comments

A PCB is fundamentally just a bunch of wires that connect components and a structural boad you can attach them to. It does not do anything actively at all to the signal. That is the task of the component you add to it.

You can do the same with a board that is not conducive, socket with pint that extends out the back, or just component pins that go through the board and then connect with wires. There is no need to solder the wires you can just wrap the wire around the pin, it is very quick to do with a special tool. There were machines that could do this automatically.

The result can be abroad that looks like [this](https://commons.wikimedia.org/wiki/File:Computerplatine_Wire-wrap_backplane_detail_Z80_Doppel-Europa-Format_1977_%28close_up%29.jpg#/media/File:Computerplatine_Wire-wrap_backplane_detail_Z80_Doppel-Europa-Format_1977.jpg) on the backside

The PCB is a way to replace the wire with copper layers in a board, it make manufacturing faster and cheaper. It is not functionally any different to wire wrapping.

Wire wrapping was a very common way for complex electronic manufacturing in the 1960 and early 1970 until PCB manufacturing could replace it. I would say it is informational a bit forgotten today because it is very simple to do and it good way for prototyping or to do some customer elections at home. You can avoid soldering and marking PCBs. It does take up more space.

That a PCB does nothing is a bit of a simplification because you can make a filter and another passive element if you work at a high frequency.

PCB also has an advantage over wire wrapping and high frequency because you can exactly control where the wires are relative to each other and their exact length and shape relative to themself. Singles in wires interact with their surroundings and controlling that is simpler with a PCB than wire wrapping.

Anonymous 0 Comments

It’s plastic with wires. Somewhere is a power source, sending power across the wires. The brain is usually some small processing unit. How processors work is another question

Anonymous 0 Comments

It’s plastic with wires. Somewhere is a power source, sending power across the wires. The brain is usually some small processing unit. How processors work is another question

Anonymous 0 Comments

It’s plastic with wires. Somewhere is a power source, sending power across the wires. The brain is usually some small processing unit. How processors work is another question