Lily's Column

Design Suggestions of Rigid-flex PCB

by Lily Zhang

Design Suggestions of Rigid-flex PCB

Common structures of Rigid-flex PCB The rigid flex board is to glue one or more rigid layers on the flexible board. The circuit on the rigi...
Posted in Flexible PCB, FPC, FPC Flexible PCB, PCB fabrication, rigid-flex pcb

Heat conduction and heat dissipation of Aluminum PCB design

by Lily Zhang

Heat conduction and heat dissipation of Aluminum PCB design

The problem of heat conduction and heat dissipation is an important part of the current lighting design. It can also be said that if the heat condu...
Posted in Aluminum Printed Circuit Board, MCPCB, PCB, PCB fabrication

5 Methods for Coping the Deformation of the Film During PCB Reverse Engineering

by Lily Zhang

5 Methods for Coping the Deformation of the Film During PCB Reverse Engineering

In the PCB copying process, there will be some special circumstances that make it difficult for people to make a difference. Some of them are impro...
Posted in PCB, PCB design, Reverse Engineering

Transistors Pinouts of some common packages

by Lily Zhang

Transistors Pinouts of some common packages

Posted in Components Sourcing, electrical symbols

5 Notes on PCB Reverse Engineering

by Lily Zhang

5 Notes on PCB Reverse Engineering

In the research of PCB reverse technology, the reverse push schematic diagram refers to the reverse of the PCB file map or directly draws the PCB c...
Posted in PCB design, PCB fabrication, Reverse Engineering

What is force sensor?

by Lily Zhang

What is force sensor?

Force sensors are used to either detect the pressure or weight of an object which can be detected by any microcontroller through ADC. So, if you ar...
Posted in force sensitive resistor

IC Package Principles and Functional Characteristics

by Lily Zhang

IC Package Principles and Functional Characteristics

This article will introduce some of the packaging principles and functional characteristics of everyday ICs. By understanding the packaging of vari...
Posted in BGA, Components Sourcing, IC

Integrated Circuits

by Lily Zhang

Integrated Circuits

Integrated circuits (ICs) are a keystone of modern electronics. They are the heart and brains of most circuits. They are the ubiquitous little blac...
Posted in Components Sourcing, IC

PCB Reverse Engineering

by Lily Zhang

PCB Reverse Engineering

1) Why need PCB Reverse Engineering? If we lost the engineering data, but the product still need continue to be produced. In this case, only the o...
Posted in PCB, PCB design, Reverse Engineering

Password Lock Circuit Using IC 4017

by Lily Zhang

Password Lock Circuit Using IC 4017

The project is built using an IC 4017 and the circuit requires a 5 digit pin number. The relay gets activated when you enter the correct pin and th...
Posted in DIY kit, DIY product, Diy Project

LED Oscilloscope Circuit

by Lily Zhang

LED Oscilloscope Circuit

The simple LED oscilloscope circuit can be used for analyzing low frequency waveform through a 10 x 10 LED matrix display. This process is accompl...
Posted in DIY kit, DIY product, Diy Project, electrical symbols

How to read a resistor ?

by Lily Zhang

How to read a resistor ?

A resistor in an integrated circuit, resists the flow of current. Its measurement is done in units of ohms(Ω). Resistors can be graded on the...
Posted in Components Sourcing