Licky's Column

Logic Gate Symbol

by Licky Li

Logic Gate Symbol

Logic gates are the fundamental building blocks of digital circuits. They perform basic logical operations on one or more binary inputs and produce...

FPGA VS ASIC

by Licky Li

FPGA VS ASIC

FPGA (Field - Programmable Gate Array) and ASIC (Application - Specific Integrated Circuit) are two important technologies in the field of digital ...

TL431 IC Pinout

by Licky Li

TL431 IC Pinout

The TL431 is a popular adjustable precision shunt regulator, and I assume you might mean it instead of TL4311C as there isn't common knowledge abou...

PNP Switching Circuits

by Licky Li

PNP Switching Circuits

PNP (Positive - Negative - Positive) switching circuits are an important part of electronic circuits. Here is a detailed introduction to them: Work...

How to Locate the Identification Number on a PCB: A Guide to Circuit Board Serial Number Lookup

by Licky Li

How to Locate the Identification Number on a PCB: A Guide to Circuit Board Serial Number Lookup

Here are the common methods to locate the identification number on a PCB: Check the silk - screen layer3: The serial number is often printed on ...
Posted in Components Sourcing

Types of Arduino Seniors

by Licky Li

Types of Arduino Seniors

It seems you might have some confusion. You probably mean "Types of Arduino Sensors". Here are some common types of Arduino sensors: Environment...
Posted in #PCBA, Components Sourcing, module

Why is NPN preferred over PNP？

by Licky Li

Why is NPN preferred over PNP？

NPN (Negative - Positive - Negative) transistors are often preferred over PNP (Positive - Negative - Positive) transistors in many applications for...
Posted in Components Sourcing

Raspberry Pi Model B

by Licky Li

Raspberry Pi Model B

The Raspberry Pi Model B is a single - board computer developed by the Raspberry Pi Foundation. Here is an introduction to it: Hardware Specific...

USB type C Circuit path diagram

by Licky Li

USB type C Circuit path diagram

Here is the circuit path diagram and related pin description of USB Type - C3: Pin Name Description A1 GND Ground A2 SSTXp1 SuperSpeed d...
Posted in Components Sourcing

How does a mechanical clock keep accurate time?

by Licky Li

How does a mechanical clock keep accurate time?

A mechanical clock keeps accurate time through the following key components and principles: Escapement mechanism: This is the core component for...

Welding effect at different temperatures

by Licky Li

Welding effect at different temperatures

The welding effect is significantly influenced by temperature. Here's a look at how different temperatures affect the welding process and the resul...
Posted in #soldering, solder mask

Understanding Different Types of Filters in Electronics

by Licky Li

Understanding Different Types of Filters in Electronics

In electronics, filters are essential components that are used to selectively pass or block certain frequencies of an electrical signal. Here is an...