The PCB routing work is like a connect-the-dots game for many engineers, and it can be a very tedious task. This is actually just a basic understanding; a proficient PCB design engineer can accomplish much more and solve many problems in product design. This article combines some design rules from major manufacturers and several technical … Read more
PCB, also known as Printed Circuit Board, can connect electronic components and implement functions. It is also an important part of power circuit design. This article will introduce the basic rules of PCB layout and wiring.1. Basic Rules of Component Layout 1. Layout according to circuit modules; related circuits with the same function are called … Read more
It is well known that PCB design always has a series of principles to follow. If these principles are not adhered to, it may lower the success probability of PCB design, affect product performance, and even have negative impacts on signal integrity, electromagnetic radiation control, and system reliability. Today, this article will analyze these principles, … Read more
Layout In design, layout is an important aspect. The quality of the layout directly affects the wiring results, so it can be said that a reasonable layout is the first step to successful PCB design. Especially pre-layout, which is the process of considering the entire circuit board, signal flow, heat dissipation, structure, and other architectures. … Read more
In the FPGA (Field Programmable Gate Array) design process, adjusting pins is a crucial task that directly relates to the stability and performance of the design. This article will discuss several aspects to pay attention to when adjusting FPGA pins! 1. Do Not Adjust VRN/VRP Pins Arbitrarily When the VRN (Reference Negative Voltage) and VRP … Read more
Many people encounter the Raspberry Pi development board for the first time, typically the 4B model. Although this development board may not be as powerful as others, it excels in versatility and has an appropriate level of development difficulty. This article will discuss the key considerations for electronic engineers working with the Raspberry Pi development … Read more
I2C is a two-wire serial communication bus, consisting of an SCL signal and an SDA signal. SCL is the clock signal sent from the master device, while SDA is the data signal, which is bidirectional, allowing devices to send and receive data through the SDA signal. When designing the I2C signal circuit, we add a … Read more
With the rapid development of the Internet of Things, remote healthcare, and autonomous driving, the demand for high-speed signals in modern society is increasing. Currently, the signal frequency in electronic system design is generally above 100MHz, and high-speed data transmission lines face challenges in signal integrity. During transmission, signals are prone to issues such as … Read more
The RS485 bus is widely used in various fields such as video surveillance, access control intercoms, and building alarms due to its simple wiring and reliable stability. However, many inaccurate concepts during the wiring process can lead to various issues. Here are some summarized misconceptions. 1. The 485 signal line can be run alongside high-voltage … Read more
Click the blue text above to follow us The main reason for adding a 22Ω or 33Ω resistor in series when a microcontroller uses SPI to connect to a sensor or controller is to suppress reflections and ringing. 1 Principle of Reflection and Source Matching In high-speed digital signal transmission, when the signal driver (such … Read more