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. Mis bilan qoplangan taglik plastinkasi bosiladi va gravitatsiyadan chiqariladi.

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. Shunday qilib, biz taxtada teshiklar qilishimiz kerak, shunda pinlar taxtadan boshqa tomonga o’tishi mumkin, shuning uchun qismlarning pinlari boshqa tomonga payvandlanadi.

Because of this, the front and back sides of such a PCB are called part surfaces and weld surfaces respectively. Ikki qavatli taxtani ikkita bitta qatlamli plastinka sifatida yopishtirish mumkin, bunda elektron komponentlar va taxtaning har ikki tomonida simlar o’rnatilgan. Sometimes it is necessary to connect a single wire from one side to the other side of the board through a guide hole. Qo’llanma teshiklari – bu har ikki tomondan simlarga ulanadigan metall bilan qoplangan yoki qoplangan tenglikni kichik teshiklari. 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. Qatlamlar orasidagi chiziqlarni ulash muammosi ko’p qatlamli PCBSda ham uchraydi, bunga ham hidoyat teshiklari orqali erishish mumkin.

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. Yopiq teshiklar bir necha qatlamli ichki PCBS qatlamlarini butun taxtaga kirmasdan PCBS yuzasiga ulaydi. Ko’milgan teshiklar faqat ichki PCB bilan bog’langan, shuning uchun yorug’lik sirtdan ko’rinmaydi. Ko’p qatlamli PCBda butun qatlam to’g’ridan -to’g’ri er simiga va quvvat manbaiga ulanadi.

So we classify each layer as signal layer, power layer or ground layer. Agar tenglikni qismlari har xil quvvat manbalarini talab qilsa, ular odatda ikkidan ortiq quvvat va simli qatlamlarga ega. The more PCB layers you use, the higher the cost. Of course, using more layers of PCBS helps to provide signal stability.