PCB High-Speed Design Basics | PCB Knowledge

Have you ever noticed that when we introduce some PCB designs or techniques like back drilling or teardrops, we can often see a sentence like “it can be applied to high-speed application”? But how muc...

high-speed design

PCB Protection: Potting or Conformal Coating? | PCB Knowledge

PCB potting is a process where a printed circuit board or electronic component is immersed or coated with a protective material, usually a liquid or gel-like substance called potting compound. Dependi...

PCB Protection Potting Conformal Coating

Potentiometer Brief Theory: Definition, Operating Principle, Types, and Sizing

IntroductionThe most used component in an electrical circuit is the resistor. Its purpose is to regulate the flow of electrical current by inducing or removing resistance in the circuit. They are read...

Potentiometer

What is Copper Thieving in PCB? | PCB Knowledge

Copper thieving is a technique used to balance the copper distribution on a PCB by adding small copper circles, squares, or even a solid copper plane to larger blank spaces. The added copper is not co...

Copper Thieving Copper Pour

Relays Part 1: Introduction to PCBs Relay’s Basic Theory

IntroductionIn power electronics, power flow control is one of the critical areas if you need to have a successful system performance. The system's success is determined by the stability of the power ...

Relay

What are Stitching Vias? | PCB Knowledge

Definition of Stitching Vias Unlike regular vias used for signal routing and electrical continuity between different layers of a PCB, stitching vias form an array strategically placed within larger co...

What do you know about copper weight? | PCB Knowledge

What Copper Weight Means? Copper weight refers to the amount of copper on each square foot of the PCB surface, measured in ounces per square foot (oz/ft²). However, we often encounter another term, co...

copper weight copper thickness

Understanding the Single-Phase Full Wave Converter

IntroductionPreviously, we had a look at the single-phase semi-converter design. We noted that the converter utilizes the technology of two thyristors and two diodes in its bridge circuit supported by...

Single-Phase Full Wave Converter

What is QFN Package? | PCB Knowledge

The purpose of packageICs, unlike resistors and capacitors, require a higher level of protection, electrical connections, and heat dissipation. To meet these needs, IC packages serve a crucial role. T...

QFN QFP IC Package

Types and Identification Methods of Varistors

Varistors are commonly employed in circuits for overvoltage protection, such as shielding electronic components from damage caused by excessive voltage. When the voltage in the circuit exceeds a prede...

Varistor

Clipper Circuits Part 2: Negative Clipper Circuits

 IntroductionPart one of the Clipper Circuits briefed us on the two types of clipper circuits: positive and negative clipper circuits, and we dwelt deeply into the positive clipper circuits worki...

PCB Substrate Advanced PCBs High Tg PCB PCB Manufacturing Impedance Control

What is Embedded Resistor and Embedded Capacitor Process?

In typical scenarios, resistors and capacitors on a PCB are directly soldered onto the board surface. However, the embedded resistor and embedded capacitor process involve embedding resistors and capa...

Embedded resistor and embedded capacitor

Do you need non-functional pads? | PCB Knowledge

Different from functional pads to establish electrical connections, non-functional pads are not connected to a trace on the layer they are on. They are typically used on inner layers of PCBs and are n...

non-functional pad functional pad

Why Use a Zero-ohm Resistor?

What is Zero-ohm Resistor?A zero-ohm resistor, also known as a jumper resistor, is a specialized resistor with a nominal resistance value of zero ohms. It is commonly used in PCB design and other appl...

Resistor Zero-ohm Resistor

Clipper Circuits Part 1

In power electronics, engineers sometime would like to reject part of the specified wave while allowing part of it to pass. This action requires the design of a special circuit known as a clipper circ...

PCB Substrate Advanced PCBs High Tg PCB PCB Manufacturing Impedance Control

Five Processing Methods of Vias

Vias are the essential component of a multi-layered PCB. From a design perspective, a via consists of two main parts: the drill hole in the center and the pad area surrounding the hole, and the sizes ...

Via Covering Soldermask Opening Resin Copper Paste

What is Metal Core PCB? | PCB Knowledge

Metal core PCBs, also known as MCPCBs, incorporate a thermally conductive metal core, such as aluminum, copper, or stainless steel, instead of FR4. This metal core acts as a heat sink, efficiently con...

Metal Core MCPCB

What is Cavity PCB?

As printed circuit boards continue to shrink in size, the surface area available for wires and components is becoming more and more limited. In this case, cavity PCB becomes an effective solution.What...

PCB Cavity PCB Copper coin PCB

A Guide to a Complete PCB Resistors Sizing

IntroductionVarious electrical components are used to achieve various roles in a printed circuit board. Therefore, a good PCB designer should have a complete understanding of such components and what ...

How to Read a Resistor? | PCB Knowledge

As parts of the passive components, resistors are components that are designed to impede or restrict the flow of electric current. Resistors are non-polar components, meaning they do not have polarity...

resistor color coded resistors

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