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PCB project made by juvtmall, #pcb prototyping#pcb assembly# Do you want to have a try? http://juvtmall.com/services/ Email: ann@juvtmall.com Whatsapp/Wechat: +86 13392411760

PCB and PCBA A PCB (Printed Circuit Board) is a board that electrically connects electronic components using conductive traces, pads, and other features etched from copper foil laminated onto a non-conductive substrate. PCB’s can be  single sided  (one copper layer),  double sided  (two copper layers), or  multi-layer  (outer and inner layers). Conductors on different layers are connected with vias (plated-thru. holes). Multi-layer PCB’s allow for much higher component density and design complexity. PCBA (Printed Circuit Board Assembly) is the board obtained after all printing solder paste on the PCB and then mounting various components like resistors, ICs (Integrated Circuits), capacitors and any other components  like transformers depending on the application and desired characteristics of the board. A PCBA usually undergoes reflow furnace heating to establish a mechanical connection between the PCB and the components.

The requirements of wire cloth and wiring   Juvtmall  ( a company supply  PCB Prototyping ,  PCBA service  and sell kinds of  components, modules  and so on)  In general, PCB multilayer board wiring is performed according to circuit function. In outer wiring, it is required to have a lot of wiring in the welding surface, and the components are less wiring, which is beneficial to the maintenance and platoon of printing plate. Thin, tight conductor and easily disturbed signal lines, usually arranged in the inner layer. The large area of copper foil should be evenly distributed in the outer layer, which will help to reduce the warping of the plate and make the plating more uniform on the surface. In order to prevent the short circuit between the surface and the printed wire and the mechanical processing, the distance of the conductive graph in the inner and outer layers should be greater than 50mil. Wire direction and line widt...

6. PCB design related concepts Juvtmall  ( a company supply  PCB Prototyping ,  PCBA service  and sell kinds of  components, modules  and so on)  Via  holes: Once selected, be sure to deal with the gap between it and the surrounding each entity especially easy to ignore the gap between the line not connected to via hole of each layer in the middle   and via hole, if it is a automatic wiring, can be in "number Via minimization" (Via Minimiz8tion) in the sub menu select "on" to automatically solve. The larger load flow required, the larger hole size required, such as the larger the hole in the power layer and the other layer. Silk screen layer: For the convenience of installation and maintenance of the circuit, etc., it need s   printing logo and  writing code   on the upper and lower surface of the printing circuit , such as component label and nominal value,   the profile  of   the component and th...

3.  L ayout inspection Juvtmall  ( a company supply  PCB Prototyping ,  PCBA service  and sell kinds of  components, modules  and so on)  1. Whether t he size of the circuit board consistent  with  the processing size  that required of the drawing . 2. Whether the layout of the components is balanced, orderly and complete. 3. Whether t here is no conflict at all levels ,such as component, outside frame,   the level of private printing is reasonable. 4. Whether t he commonly used components are convenient to use ,s uch as switches, plug-in board inserts, components that need to be replaced frequently, etc. 5. Whether the distance between heat sensitive components and heating components is reasonable. 6. Good heat dissipation. 7. Whether the disturbance of the line needs to be considered. 4. the main sequence System specification: first, the system specifications of the electron...

1.The design of PCB Juvtmall  ( a company supply  PCB Prototyping ,  PCBA service  and sell kinds of  components, modules  and so on)  In PCB design, the layout of the components and the wiring of the circuit are the two key links. Layout, means the circuit device in the printed circuit board wiring area. Whether the layout is reasonable not only affects the wiring work at the back, but also has an important effect on the performance of the whole circuit board. After guarantee ing  the circuit function and performance index, to satisfy the requirement of process, testing and maintenance aspects, components should be uniform, neat  and compact   on the PCB, as far as possible to reduce and shorten the lead and the connection between components, in order to get symmetrical   packing density . The position of each functional circuit unit is arranged according to the circuit process, the input and output signal, ...

What can you do with it   Juvtmall  ( a company supply  PCB Prototyping ,  PCBA service  and sell kinds of  components, modules  and so on)  The big advantage of Raspberry Pi is that it doesn't have a fixed pattern. You can use it to play video or browsing the web, also can "play with" it, learn how to use this motherboard to do something, Raspberry PI is a flexible platform that can be played as a toy, a tool or experiment platform. . An ordinary computer Raspberry PI is a computer that can also be used to install free software on the web.You can use it to deal with documents or tables when you can't connect to the network. . Learning to programming Raspberry PI is designed as a teaching tool to encourage young people to carry out various computer experiments, It installs the interpreter and compiler of various programming languages. For beginners, you can use MIT and Scratch Graphical programming language. If you want to start co...