General descriptionDuring the past month I’ve been slowly gathering information and designing a VCO’s architecture based on the specifications stated on my last post. Here’s a reminder:InputsCV 1V/oct...
Afonso Muralha
May 28,2021
972 views
1. What is a switching power supply snubber circuit?Snubber circuit is also called absorption circuit, which is an important protection circuit for power electronic devices. It is composed of inductor...
PCBWay
Oct 16,2020
6958 views
Impedance matchingImpedance matching means that when source is transmitted, the load impedance must be equal to the characteristic impedance of the transmission line. At this situation, the transmissi...
Eric
Dec 19,2019
4047 views
The direct factor for the temperature rise of PCB is the existence of power consumption parts and the heat generation intensity varies with the power consumption.There are two phenomena of t...
Eric
Sep 05,2019
8609 views
The reasons for the deformation of the negative film and its solution: The reason:(1) Temperature and humidity control failure(2) The exposure machine temperature rises too highSolution:(1) Norma...
lesley
Jul 25,2019
4368 views
Everyone knows that PCBs are easy to be bended or warped when get through the reflow furnace. So how to avoid this situation, here are some advices for you.1. Reduce the effect of temperature on PCB b...
lesley
Jul 08,2019
6138 views
What is the Thermoelectric Separation Substrate?The circuit part and the thermal layer part of the substrate are on different circuit layers, and the thermal layer part directly contacts the heat diss...
lesley
Jun 28,2019
5741 views
There are four main types of plating methods in PCB (Printed Circuit Board) production: finger-plated plating, through-hole plating, reel linkage selective plating and brushing plating. Here'...
lesley
Jun 20,2019
8059 views
Introduction:PCB is an important carrier of electronic components and an important circuit connecting component and has developed for a long time. According to the number of printed circuit board, PCB...
PCBWay
Jan 25,2019
6342 views
Introduction:Mechanical blind through-hole PCB means that both the blind holes and the through-hole of the plate are formed by the process of mechanical drilling. For example, the figure below is the ...
PCBWay
Jan 23,2019
5228 views
Introduction:BGA is a typical high-density packaging technology. Its characteristics are that the chip pins are distributed under the package in the form of spherical solder joints, which can make the...
PCBWay
Jan 22,2019
6545 views
Introduction:Electronic components and electromechanical components have electrical contacts, and the electrical connection between two discrete contacts becomes an interconnection. The electronic dev...
PCBWay
Jan 18,2019
6704 views
Introduction:In recent years, due to the miniaturization and thinness of portable electronic products, the mounting space inside the machine and the mounting area of the substrate are becoming smaller...
PCBWay
Jan 14,2019
3082 views
Introduction:Alloy, , is the best solder in the reflowing process. Compared with the traditional solder, it has two disadvantages in terms of manufacturability as following:1) ...
PCBWay
Jan 03,2019
5197 views
Introduction:As the wiring density of flexible substrate becomes higher and higher, the circuit made by subtractive process can no longer meet the requirements of circuit elaboration. Therefore, the i...
PCBWay
Dec 17,2018
3100 views
Application of Acid Copper Plating in PCB Manufacturing:After a series of processes, the printed circuit board needs to be metallized and deposited on the hole wall surface of the through hole in orde...
PCBWay
Dec 11,2018
2866 views
Abstract:The cleaning effect after PCB installation soldering is directly related to the electrical performance, working life and reliability of the product. Cleaning is also a key process in PCB prod...
PCBWay
Nov 23,2018
4477 views
MVI (Manual visual inspection):Manual visual inspection, shortly as MVI, is a method to detect defects in digital circuits by naked eye, magnifier and microscope in SMT production. In the manual visua...
PCBWay
Nov 20,2018
2116 views
Generally it doesn't work to use the Eagle files for PCB manufacturing , so the situation will be better if you can send the Gerber files directly to a PCB fab. In this tutorial, we are going to ...
PCBWay
Apr 25,2017
30391 views
Signal Integrity Analysis for High-speed PCBIntroduction:As large-scale and ultra-large-scale integrated circuits are more and more applied to power circuit systems, the requirements of users are high...
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