How to Distinguish Between Strong and Weak Electricity in PCB Design

How to Distinguish Between Strong and Weak Electricity in PCB Design

When starting to learn PCB design, it is often emphasized by experts to separate strong electricity and weak electricity. So what exactly are these two types of “electricity” and how can they be distinguished? 1. What Are Strong and Weak Electricity? Strong Electricity: Definition: Refers to alternating current or direct current greater than 2V (usually … Read more

Key Points in RF Circuit Design

Key Points in RF Circuit Design

1. Considerations for Component Packaging in RF Circuits A successful RF design must pay careful attention to every step and detail throughout the design process, which means thorough and careful planning must be done from the start of the design phase, along with comprehensive and continuous evaluation of the progress of each design step. This … Read more

Correct Placement of Capacitors on PCBs

Correct Placement of Capacitors on PCBs

The circuit board cannot do without power chips. We generally use a large capacitor (100μF to 1000μF) and a small capacitor (0.1μF or 0.01μF) as the power filtering capacitors.The large capacitor is used to filter out low-frequency noise, while the small capacitor is used to filter out high-frequency noise.You have designed so many circuit boards; … Read more

Understanding TTL, CMOS, and RS232 Levels

Understanding TTL, CMOS, and RS232 Levels

1. TTL Levels: TTL level signals are most commonly used because data representation typically follows binary rules, where +5V is equivalent to logic ‘1’ and 0V is equivalent to logic ‘0’. This is known as the TTL (Transistor-Transistor Logic) signal system, which is the standard technology for communication between various components within devices controlled by … Read more

How to Light Up an LED Using Microcontroller

How to Light Up an LED Using Microcontroller

For every beginner in microcontrollers, the first program is almost always to light up an LED, which is as classic as the “hello world” in software engineering. It’s simple but filled with many memories. I still remember the experience of learning about microcontrollers. Back then, a classic 8051 microcontroller like the AT89C52 cost about 8 … Read more

The Way in Silicon: Natural Laws in Circuit Boards

The Way in Silicon: Natural Laws in Circuit Boards

On the nanoscale copper foil circuits, current travels at the speed of light between transistors. This precise creation of modern technology resonates wonderfully with the “Way” described by Laozi two thousand years ago, creating a remarkable harmony in the folds of time and space.When we examine circuit boards from a Taoist perspective, we find that … Read more

Is a 10-Bit ADC Sufficient for Microcontrollers?

Is a 10-Bit ADC Sufficient for Microcontrollers?

1. Introduction Currently, most microcontrollers come with built-in ADC converters ranging from 10 to 12 bits. In general applications, how much does the bit depth of ADC conversion affect measurement error? Is a 12-bit ADC sufficient? Below, we will discuss the impact of ADC bit depth on measurement error through actual measurements. 2. Circuit Design … Read more

Why Do Microcontrollers Have Multiple VDD Groups?

Why Do Microcontrollers Have Multiple VDD Groups?

Click on “Microcontroller” at the top, then select “Top/Star“Public Account to receive the latest tweets! Introduction The Autonomous Driving Route Debate: Pure Vision vs. Multi-Sensor Fusion Precise Control of Medical Equipment Using TMC Temperature Monitoring System Circuit Design for Main Drainage Pump Room in Coal Mines_Temperature Sensor Circuit Embedded Class Electronic Circuit Diagram_Circuit Diagram How … Read more

Types of PCBs and Considerations for Multi-layer PCB Design

Types of PCBs and Considerations for Multi-layer PCB Design

1. Types of PCBs According to the number of circuit layers, PCBs can be classified into single-sided boards, double-sided boards, and multi-layer boards. Common multi-layer boards typically have 4 or 6 layers, while complex multi-layer boards can have dozens of layers. The following are the three main types of PCBs: 1. Single-Sided Boards Single-sided boards … Read more

Important Issues in Oscilloscope Grounding Applications

Important Issues in Oscilloscope Grounding Applications

Click the image above to follow “Easy Learning Electronics” and easily learn electronic knowledge. Easy Learning Electronics Subscription Daily updates of technical articles in the electronics industry and the latest news on microcontrollers, allowing you to learn easily anytime, anywhere. This is a very subtle issue; if not careful, when connecting the oscilloscope, it can … Read more