Lisa's Column

Teach you how to identify the true and false chips

by Marketing PCB HERO January 25, 2022

Some time ago, someone told us that debugging a circuit is a life-and-death situation, and suspected that a fake chip was bought. Today we will sha...

Posted in IC, Material, Turnkey

What are the precautions for a good SMT chip processing factory ?

by Marketing PCB HERO January 20, 2022

With the development of science and technology, many electronic products are developing in the direction of small and precise, making the size of m...

Posted in pcba, smt, soldering

How to eliminate electromagnetic interference in PCB design?

by Marketing PCB HERO January 17, 2022

Anti-interference problem is a very important link in modern PCB design, it directly reflects the performance and reliability of the whole system. ...

Posted in PCB design

How to reduce surface tension and viscosity in PCBA soldering process？

by Marketing PCB HERO January 15, 2022

Viscosity and surface tension are important properties of PCB A solder, and good PCBA solder should have low viscosity and surface tension when me...

Posted in pcba, smt, soldering

How to Improve the Thermal Reliability of PCB Circuit Boards

by Marketing PCB HERO January 14, 2022

In general, the distribution of copper foil on a pcb circuit board is very complex and difficult to model accurately. Therefore, it is necessary to...

Posted in PCB, PCB fabrication

How to Improve the Thermal Reliability of PCB Circuit Boards

by Marketing PCB HERO January 14, 2022

In general, the distribution of copper foil on a pcb circuit board is very complex and difficult to model accurately. Therefore, it is necessary to...

Posted in PCB, PCB design, PCB fabrication, pcba

[Altium Designer] PCB knowledge - copper pouring skills and settings

by Marketing PCB HERO January 13, 2022

What are the pcb copper cladding skills? What is the pcb copper cladding setting method? The main function of pcb copper cladding is "reflow and sh...

Posted in PCB design

Comparison of STM8S105S4T6C and STM8S105C6T6

by Marketing PCB HERO January 10, 2022

STM8S105S4T6, 44 pins, LQFP package (LQFP44 10X10), fewer pins than STM8S105C6T6, but bigger than it. STM8S105C6T6, package LQFP48 (7*7), 48 pins...

Posted in IC, Material

The correct test method of ripple noise

by Marketing PCB HERO January 06, 2022

Accurately measuring power supply ripple is an art in itself. In the example shown in Figure 1, a junior engineer used an oscilloscope by mistake...

Posted in Test

How does the Bluetooth module work?

by Marketing PCB HERO January 06, 2022

1. The working principle of the Bluetooth module Bluetooth devices use electromagnetic waves to connect mobile phones and computers. Bluetooth prod...

Posted in module

Features and advantages of power supply modules

by Marketing PCB HERO January 05, 2022

The power module is a power supply that can be directly mounted on the printed circuit board. Its characteristics are that it can be an application...

Posted in Material, module

Rheostat vs potentiometer

by Marketing PCB HERO December 29, 2021

The potentiometer and rheostat are two components that are used in electronics. These two components are used for both laboratory and industrial pu...

Posted in Transformer