Tag Archives: SMT Bowl Feeder ,SMT Radial Feeder .SMT Axial Feeder. auto insertion machine，SMT equipment, AI SMT spare parts

A good PCB layout design can optimize the efficiency, slow down the thermal stress, and minimize the noise and interaction between traces and components. All this comes from the designer’s understanding of the current conduction path and signal flow in the power supply. When a prototype power panel is powered on for the first time, […]

Printed circuit boards can be used in all fields, including motion control applications. The new CAD software can help designers create better schematic diagrams and layouts. Gone are the days when “electricity” and “mechanics” became independent disciplines. Nowadays, almost all mechanical systems are equipped with some form of electronic equipment for monitoring, control or both. […]

Cleaner production refers to continuously adopting measures such as improving design, using clean energy and raw materials, adopting advanced technology and equipment, improving management and comprehensive utilization, etc., to reduce pollution from the source, improve resource utilization rate, and reduce or avoid the generation and discharge of pollutants in the process of PCB production, service […]

R5 in PCB refers to the resistance. There are many resistors in the circuit diagram, which are listed in sequence, R1, R2? … (the previous “R” refers to the resistance in general; The Arabic numerals at the back are components; Here is the sequence number of the resistor. There will be a lot of component […]

When I once saw the PCB of the computer motherboard, I thought how great it was to draw it myself. Later, when I came into contact with protel99se, I stepped into the team of drawing boards, and then altium, cadence and so on. With the accumulation of experience in drawing boards, more and more matters […]

PCB via problem phenomenon description During the trial production of the new intelligent conference equipment samples produced by circuit R&D, when the samples were subjected to strict aging test and the system performance test, it was found that two devices were disconnected (abnormal communication), accounting for 4% of the total tested products. After analysis, it […]

Differential current and common-mode current Radiation Generation: Current causes radiation, not voltage. Static charge generates electrostatic field, constant current generates magnetic field, and time-varying current generates both electric field and magnetic field. There are common-mode current and differential-mode current in any circuit. The differential-mode signal carries data or useful signals, and the common-mode signal is […]

Some STM32 application customers who use external SDRAM reflect that in EMC test, the radiation interference caused by SDRAM signal exceeds the standard. If the chassis can’t shield the radiation interference in the terminal products, then this kind of problem often needs to be solved by modifying the PCB design of SDRAM signal. Here, how […]

No.1 data input stage Whether the information received in the process is complete (including: schematic diagram, *.brd file, bill of materials, PCB design specification, PCB design or change requirements, standardization requirements specification, process design specification and other documents). Make sure the PCB template is up to date. Whether the clock layout is reasonable. Confirm that […]

When PCB is to be processed by SMT, PCB is transported by guide rail on SMT production line. Therefore, a pair of edges of forbidden cloth elements must be reserved as transport edges. Usually, the two long sides of the PCB or the rear panel of the jigsaw puzzle are used as its conveying edges. […]