Licky's Column

MMC inverters, or Modular Multilevel Converters

by Licky Li

MMC inverters, or Modular Multilevel Converters

MMC inverters, or Modular Multilevel Converters, are advanced power electronic devices with several notable features and applications: Architectu...

How to Make 220V to 12V Converter at Home?

by Licky Li

How to Make 220V to 12V Converter at Home?

Components Required: Transformer: A step-down transformer with a primary winding rated for 220V and a secondary winding rated for 12V. Make sur...
Posted in circuit, design

Types of Resistors

by Licky Li

Types of Resistors

Resistors can be classified into several types based on different criteria, such as resistance adjustability, manufacturing materials, and special ...

Types of Electric Circuits

by Licky Li

Types of Electric Circuits

There are several types of electric circuits, which can be classified in different ways. Here are some common types: By Connection Type: Serie...

PNP Transistor is different from NPN Transistor

by Licky Li

PNP Transistor is different from NPN Transistor

PNP transistors and NPN transistors have several differences, including: Structure: PNP Transistor: Composed of two p-type semiconductors sand...

How to choose the appropriate substrate material for RF PCB design?

by Licky Li

How to choose the appropriate substrate material for RF PCB design?

1. Dielectric Constant (Dk) The dielectric constant determines the speed at which electrical signals propagate through the material. A lower Dk g...

Key Electrical Symbols for Power Systems and Circuit Diagrams

by Licky Li

Key Electrical Symbols for Power Systems and Circuit Diagrams

Resistor: Symbol: A zigzag line. It represents resistance in a circuit and is used to limit the flow of current. Resistors are used for voltage ...

Tantalum Capacitor Marking

by Licky Li

Tantalum Capacitor Marking

Tantalum capacitors are marked in several ways to indicate their specifications. Here are the common markings and what they mean: 1. Capacitance ...

A Very Simple Amplifier Circuit Design -- 5 Watts With Heat Sink

by Licky Li

A Very Simple Amplifier Circuit Design -- 5 Watts With Heat Sink

Here is a simple amplifier circuit design that can deliver around 5 watts of power and includes a heat sink: Components Needed: TDA2822M dual a...

Positive and Negative Fixed Volatge Regulator ICs

by Licky Li

Positive and Negative Fixed Volatge Regulator ICs

In the complex world of electronics, Positive and Negative Fixed Voltage Regulator ICs play a vital and indispensable role. These integrated circui...

How electric cars save the planet ?

by Licky Li

How electric cars save the planet ?

In the face of growing environmental concerns and the imperative to reduce carbon emissions, electric cars have emerged as a crucial solution in th...

How does the NE555 Timer work?

by Licky Li

How does the NE555 Timer work?

The NE555 Timer operates based on a complex yet well-defined mechanism. At its core, it consists of several key components and circuits that intera...