Licky's Column

The difference between Bc547 and BC557

by Licky Li

The difference between Bc547 and BC557

The BC547 and BC557 are both common NPN and PNP bipolar junction transistors (BJTs), respectively. Here are the main differences between them: P...

Types of port plug

by Licky Li

Types of port plug

Port plugs come in various types, each designed to serve specific purposes and applications. Here are some common types: USB Plugs: These are wi...

5 Steps to Design an RF Amplifier

by Licky Li

5 Steps to Design an RF Amplifier

Design Steps   Steps 1 - Determine 5 Design Stages of The RF Amplifier   Input Matching network: The impedance line connects with the amplifier wi...
Posted in design, PCB design

7 Tips for Electronic Speed Control of Drones

by Licky Li

7 Tips for Electronic Speed Control of Drones

1. 4in 1 or Individual Electronic Speed Controllers   Just as the name suggests, there are two types of electronic speed controllers for drones: 4 ...
Posted in Drones

10 Inspection Tips to Design High-quality PCB

by Licky Li

10 Inspection Tips to Design High-quality PCB

1. Compare your PCB Design With the Set Standards   PCB designing is a complicated task. It takes years of knowledge and technical experience to be...
Posted in PCB design

8 Technical Tips for Designing Performance-Driven Rogers PCB

by Licky Li

8 Technical Tips for Designing Performance-Driven Rogers PCB

1. The Application of Rogers in PCB   Rogers is mostly used in RF microwaves, high-speed designs, military, automotive industries, and mobile app...
Posted in PCB design, Rogers pcb

15 Common PCB Soldering Problems to Avoid

by Licky Li

15 Common PCB Soldering Problems to Avoid

I.Solder Bridging Bad solder joints   The top problem that smaller and more compact components cause when it comes to PCB board soldering is solder...
Posted in #SMT, soldering

Impedance Matching in HDI PCB Design

by Licky Li

Impedance Matching in HDI PCB Design

Impedance matching Impedance matching means that when source is transmitted, the load impedance must be equal to the characteristic impedance of th...
Posted in HDI PCB, PCB, PCB design, PCB fabrication, pcba

Classification of RF PCB Design

by Licky Li

Classification of RF PCB Design

Radio frequency printed circuit board There are different types of multilayer printed circuit board, depending on the intended application. Based ...
Posted in RF pcb

RF PCB Design Considerations

by Licky Li

RF PCB Design Considerations

From the onset, you must have realized that RF Printed Circuit Boards are quite different from the other types of PCBs. They rely on special materi...
Posted in RF pcb

Guidelines for RF and Microwave Design

by Licky Li

Guidelines for RF and Microwave Design

RF AND MICROWAVE PCB BASICS The simplest way to describe RF and microwave PCBs is that they contain components that carry RF or microwave signals. ...
Posted in design, PCB design, RF pcb

RF/Microwave PCB Design & Layout Guide

by Licky Li

RF/Microwave PCB Design & Layout Guide

What Are RF and Microwave PCBs? RF and microwave PCBs operate on signals in the megahertz to gigahertz frequency ranges (very low frequency to extr...
Posted in design, PCB design, RF pcb