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Blogs

  • Electrical and non-electrical safety clearances in PCB design.

    Electrical and non-electrical safety clearances in PCB design.
    In PCB design, there are many places that need to consider the safety distance. Here, it is classified into two categories for the time being: one is electrical-related safety spacing, and the other is non-electrical-related safety spacing.
    September 8, 2020
  • About the layout and wiring principles of the RF board PCB.

    About the layout and wiring principles of the RF board PCB.
    As a competent PCB design engineer, the general PCB layout rules must be clear to everyone. However, do you all know the design rules of RF board PCB?
    September 2, 2020
  • How to judge the quality of PCB circuit board?

    How to judge the quality of PCB circuit board?
    With the rapid development of the mobile phone, electronics, and communications industries, the PCB circuit board industry has continued to grow and grow rapidly, and at the same time, people have become increasingly demanding on the number of layers, weight, precision, materials, colors, and reliability of the PCB. However, due to fierce market price competition, the cost of PCB board materials is also on a rising trend, and more and more manufacturers are monopolizing the market with low prices in order to enhance their core competitiveness. However, behind these ultra-low prices is the reduction of material costs and process manufacturing costs, which makes the PCB prone to cracks (cracks), scratches, (or scratches), and its precision, performance and other comprehensive factors do not meet the standards. It will seriously affect the solderability and reliability of the product. Faced with various PCB circuit boards on the market, there are two ways to distinguish the quality of PCB circuit boards: the first method is to distinguish and judge from the appearance, and the other is to judge from the quality specifications of the PCB itself.
    August 18, 2020
    PCB
  • General PCB guidelines for EMC compliance

    General PCB guidelines for EMC compliance
    The PCBs of information products are now high-density boards, usually 4-layer boards. As the density increases, the trend of use is a 6-layer board, which is designed to take into account the balance of performance and area.
    June 4, 2019
  • How to layout PCB

    How to layout PCB
    Recently, I worked with an intern on a non-inverting configuration OPA191 op amp with a gain of 2V/V, a load of 10kΩ, and a supply voltage of +/-15V. Figure 1 shows the schematic of the design.
    May 13, 2019CMS
    PCB

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