Category Archives: Uncategorized

How to correctly select PCBA processing technology for processing circuit board

Now there are more and more electronic devices, and many things are developing in the direction of intelligence, which requires more circuit boards to undertake the control systems of these devices. Here’s how to choose PCBA processing technology for circuit board processing. How to correctly select PCBA processing technology for processing circuit board 1. single-sided […]

Copper laying on the bottom layer of PCB design table

In the process of PCB design, some engineers don’t want to lay copper on the bottom of the surface layer in order to save time. Is this the right thing to do? Is it necessary to lay copper on the surface layer of PCB? First of all, we need to be clear: it is beneficial […]

Design criteria of motor outsourcing PCB

PCB Design Goal of DC Motor Drive Circuit In the design of DC motor drive circuit, the following points should be considered: 1. Function: Does the motor rotate unidirectionally or bidirectionally? Don’t need speed regulation? For unidirectional motor drive, only a high-power triode or FET or relay can directly drive the motor. When the motor […]

Why are sensitive lines on PCB edges susceptible to ESD interference?

In a grounded desktop product, when the ESD contact discharge test with a test voltage of 6KV was conducted at the grounding terminal, the system was reset. In the test, try to disconnect the grounding terminal from the Y capacitor connected to the internal digital working ground, but the test result has not improved significantly. […]

Production process of electronic circuit board –SMT process

With the development trend of miniaturization and thinness of electronic products, many circuit boards in electronic products now adopt SMT manufacturing technology, that is, surface mount technology, that is, all electronic components are attached to the surface of circuit boards. There is no need to insert it through the reserved via hole on the circuit […]

Why is pcb divided into digital ground and analog ground?

1 Why do you want to divide digital ground and analog ground? Although it is interlinked, it is different when the distance is long. The voltage at different points of the same wire may be different, especially when the current is large. Because there is resistance in the wire, the voltage drop will occur when […]

What to do about the suppression and interference of ground wire in PCB outsourcing design?

In the process of PCB outsourcing design, especially in high-frequency circuit design, some irregular and abnormal phenomena caused by ground wire interference are often encountered. In this paper, the causes of interference caused by ground wire are analyzed, three types of interference caused by ground wire are introduced in detail, and solutions are put forward […]

Brief introduction of PCB rivet technology

The increasing importance of laminating and laminating technology in all of these industries, including PCB, is increasing rapidly. In order to prevent quality problems, such as dislocation, during lamination, it is usually required to integrate PCB manufacturing processes before lamination. Compared with traditional fusion technology, modern fusion technology has the advantages of high efficiency, easy […]

Processing technology requirements of PCBA patch for power board

Pcb circuit boards that provide power supply are almost all called power boards, and power boards are machine boards that mainly deal with power supply initiating functions. The smt process flow of power board can be basically divided into three processes: automatic mounting of SMT components, wave soldering plug-in, and manual operation. Then, what are […]

Component placement strategy in multilayer PCB system

There is a limit to how many circuits can be installed on a board. For the sake of manufacturing equipment and standard panel size, PCB itself has an upper size limit. The number of transistors on a device continues to expand, while resistors and capacitors almost disappear to the naked eye. Even with all integration […]