Vias are one of the essential components of multilayer PCB boards, with drilling costs typically accounting for 30% to 40% of the PCB manufacturing costs. Simply put, every hole on a PCB can be referred to as a via. Functionally, vias can be divided into two categories: One is used for electrical connections between layers. … Read more
Click the blue text Follow us Abstract: Why is it necessary to install terminal resistors in CAN bus networks? In the article detailing the characteristics of CAN bus: high-speed CAN bus and low-speed CAN bus, it is stated that both high-speed and low-speed CAN networks require terminal resistors to be installed. High-speed CAN networks require … Read more
Modeling of Parasitic Capacitance in Planar Transformers and Optimization of PCB Windings Planar transformers can reduce the size of magnetic components and improve the power density of converters, and they have been widely used in electric vehicles, server power supplies, energy storage, and other fields. However, in practical applications, planar transformers face significant parasitic capacitance … Read more
1. Problem Description A certain dashcam requires an external adapter for testing. During power-on testing, it was found to exceed standards, specifically at frequencies of 84MHz, 144MHz, and 168MHz. The cause of the excessive radiation needs to be analyzed, and corresponding countermeasures should be provided. The radiation test data is as follows:2. Analysis of Radiation … Read more