It is not difficult to learn PCB design. The software is just a tool. If you have computer foundation, you can learn how to use PCB software in two weeks. The key is to understand the electronic circuit, small series of suggestions can buy some video tutorials on the Internet, their own spare time while learning while operating, fan Billion video is good, choose a set of suitable for their own.

Speaking of PCB, many friends will think that it can be seen everywhere around us, from all household appliances, all kinds of accessories in computers to all kinds of digital products, as long as electronic products almost all use PCB, so what is PCB on earth? A PCB is a PrintedCircuitBlock, which is a printed circuit board for electronic components to be placed on. Mbale yoyala yamkuwa imasindikizidwa ndikuchotsedwa pamayendedwe oyenda.

PCB can be divided into single, double and multilayer boards. All kinds of electronics are integrated into the PCB. On a basic single-layer PCB, the parts are concentrated on one side and the wires are concentrated on the other. Chifukwa chake tifunika kupanga mabowo m’bolodi kuti zikhomo zizitha kudutsa bolodi kupita tsidya lina, kotero zikhomo zazigawo zimalumikizidwa mbali inayo.

Because of this, the front and back sides of such a PCB are called part surfaces and weld surfaces respectively. Bolodi losanjikiza kawiri limatha kuwonedwa ngati matabwa awiri osanjikiza pamodzi, okhala ndi zida zamagetsi ndi zingwe mbali zonse ziwiri za bolodi. Sometimes it is necessary to connect a single wire from one side to the other side of the board through a guide hole. Mabowo otsogolera ndi mabowo ang’onoang’ono mu PCB yodzazidwa kapena yokutidwa ndi chitsulo chomwe chitha kulumikizidwa ndi mawaya mbali zonse. At present, many computer motherboards use 4 or even 6 layers OF PCB, while graphics cards generally use 6 layers of PCB. Many high-end graphics cards like nVIDIAGeForce4Ti series use 8 layers of PCB, which is the so-called multi-layer PCB. Vuto lolumikiza mizere pakati pa zigawo limapezekanso pa ma PCBS angapo, omwe amathanso kupezedwa kudzera m’mabowo owongolera.

Because of the multi-layer PCB, sometimes the guide holes do not need to penetrate the whole PCB. Such guide holes are called buried holes and blind holes because they only penetrate a few layers. Mabowo akhungu amalumikiza magawo angapo a PCBS amkati mpaka ma PCBS osalowerera bolodi lonse. Mabowo omwe anakwiridwa amalumikizidwa ndi PCB yamkati, kotero kuwala sikuwoneka pamwamba. Mu PCB yama multilayer, gawo lonse limalumikizidwa mwachindunji ndi waya wapansi ndi magetsi.

So we classify each layer as signal layer, power layer or ground layer. Ngati magawo a PCB amafunikira magetsi osiyanasiyana, nthawi zambiri amakhala ndi zigawo zopitilira awiri zamagetsi ndi waya. The more PCB layers you use, the higher the cost. Of course, using more layers of PCBS helps to provide signal stability.