For decades, low-power isolated DC / DC power modules have been used to provide low-power auxiliary voltage and effectively match the power supply voltage required by the load with the power. For example, it is used to form an independent ground loop in the negative potential of the analog interface, safe isolation or areas where […]
Articles Tagged: pcb
How to design cpwg structure with low cost and fast PCB process
Using low-cost PCB (printed circuit board), it is easy to design a circuit board with almost any CAD software (even free software) in a few hours. It only takes two days to complete the prototype board on your desk. Many software packages have good design rules. Most PCB manufacturers can produce linewidth and line spacing […]
What is the reason why PCB holes have no bronze in electroless copper plating
PCB adopts different resin systems and substrates of different materials. The difference of resin system will lead to the significant difference between the activation effect of electroless copper plating and the process of electroless copper plating. In particular, there are great differences between CEM composite substrate and high-frequency silver substrate. Special methods need to be […]
Summary of six reasons why PCB pads are not easy to tin
As we all know, it is not easy to tin the PCB pad, which will affect the component patch, which indirectly leads to the failure of subsequent tests. Here we will introduce the reasons why PCB pads are not easy to tin? I hope you can avoid these problems and minimize the loss when making […]
PCB sales orders in North America fell sharply in January 2019
Bannockburn, Illinois – IPC – international electronics industry connection Association ® Recently released the survey and statistics report on PCB industry in North America in January 2019. The report showed that sales and orders fell sharply in January, but the order to shipment ratio climbed to 1.06. In January 2019, PCB shipments in North America […]
Discussion on shape design of high precision small size PCB
introduction Although the development of PCB technology is changing with each passing day, many PCB manufacturers put their main energy into the production of HDI board, rigid flex combination board, backplane and other difficult boards, there are still some PCBs with relatively simple circuit, very small unit size and complex shape in the existing market, […]
Common problems and solutions for novices learning Protel 99
After the SCH diagram is drawn, when the synchronizer is started to update the PCB file, if the dialog box “can not execute all net list to macros.do you want to continue any?” pops up, prompting you that you cannot execute all network macros. Whether to forcibly load the network table or not, it indicates […]
Field side diagnosis of isolated DC / DC converter based on Integration
Max22530 – max22532 is maxsafe ™ Current isolation, 4-channel, multiplex, 12 bit, analog-to-digital converter (ADC) in the series product line. The integrated isolated DC-DC converter supplies power to all field side circuits and can carry out field side diagnosis even if there is no input signal. The max22530 – max22532 series continuously digitizes the input […]
Apple’s Mini led iPad and MacBook will use ultra-thin rigid pcb boards
According to the latest report of DIGITIMES, Apple will use the ultra-thin rigid pcb provided by Jianding technology in its upcoming Mini led iPad and MacBook. The source said that Apple’s Mini LED backlight module will use three-layer rigid boards. Compared with the general rigid pcb, they need higher flatness and hole density to support […]
Definition, process and gap analysis of PCB copying
PCB copy definition PCB (printed circuit board), also known as printed circuit board and printed circuit board in Chinese, is an important electronic component, the support of electronic components and the provider of electrical connection of electronic components. It is called “printing” because it is made by electronic printing Circuit board. PCB copy, that is, […]