PCB Design
Who is a better PCB designer?
A lot of feedbacks can be received regarding the design of the PCB. The circuit engineers and the PCB engineers comment very frequently regarding the frustration that is involved in working of both the members in consultation with each other. A very common question or a feeling that arises in most of the engineers is […]
Six Tips for choosing PCB components
1. Consider the component package choice Throughout the schematic drawing phase, we should consider making the decisions of the component package and pad patternin the layout stage. Here are some recommendations when selecting components according to component package. Package includes electrical pad connection of components and mechanical dimensions (X, Y and Z),and namely the shape […]
The connection mode between the PCB components
The connection arrangement mode between PCB components. (1) The printed circuit does not allow to have the cross circuit.For possible cross line,two kinds of solutions :”through” and “around” can be used. That is, let the lead go through from a gap at the foot of the other resistors, capacitors, transistors,or go around from one end […]
Classification basis of PCB design engineers
PCB design engineers have grading basis: introduction, elementary, intermediate (ABC), and advanced.Let’s have a look at what level of yourself. Jobs: entry-level PCB engineers Capacity requirements: 1, to create a simple package, such as DIP10 ; 2, to master the basic operation of at least one PCB design software, and can develop simple wiring width […]
Are you sure you thoroughly understand the PCB design yet?
First: preparation. This includes preparing component libraries and schematics. “To do a good job, one must first sharpen one’s tools”.To make a good board, in addition to good PCB design principles,drawing should also be well. Before PCB design,firstly component library of SCH schematic and PCB should be ready.Component library can use protel own libraries, but […]
The role of electrolytic capacitor in the circuit design
When talking about electrolytic capacitor, we shall know more about its role. 1, the filtering effect: in the power circuit, a rectifying circuit makes alternating current into the pulsating direct current.After a rectifier circuit ,access electrolytic capacitor of larger capacity.Using the properties of charge and discharge makes pulsating direct current voltage become relatively stable direct […]
The creative PCB designs absolutely stun your vision
When art and technology spark,it will let us shine, smile, or at least feel: Cool! Classical style nixie tube clock Yanzeyuan designed nixie tube clock . In addition to beautiful winding,the board also briefly describes the nixie tube clock and the principle that it works. The more common tube clock will be placed in a […]
Production process control of miltilayer PCB
Due to the rapid development of high-tech, most electronic products are beginning to use multi-layered pcb. Traditional single and double-sided board can not meet requirements of the design and use. Multilayer PCB fabrication in the whole production has been dominant. For production process of multilayer boards,engineers in R & D job for many years have no […]
Summary of 10 defects of PCB design process
First, the process hierarchy is not clearly defined Single-layer board is designed in TOP layer.If there is no explain, and do the design on both sides,the board made out is mounted with device,but it is bad welding. Second, a large area of the copper foil is too close from the frame . A large area […]
Practical skills summary of high frequency PCB design
PCB design goal is smaller, faster and lower cost. And because the point of interconnection on the circuit chain is the weakest link, in RF pcb design, electromagnetic properties at the point of interconnection is the main problem faced by the engineering design, to examine each of the points of interconnection and to solve existing […]