Lisa's Column

How to protect your circuit design from being copied ？

by Lily Zhang

How to protect your circuit design from being copied ？

Protecting your circuit design from being copied is a critical concern for engineers and companies. Here's a comprehensive approach combining legal...
Posted in Reverse Engineering

Why STM32CubeIDE is so important for pin mapping when you working with STM32 microcontrollers

by Lily Zhang

Why STM32CubeIDE is so important for pin mapping when you working with STM32 microcontrollers

STM32CubeIDE is critically important for pin mapping when working with STM32 microcontrollers because it streamlines and automates what would other...
Posted in #microcontroller

8 common IC chip cracking principles for single chip decryption methods

by Lily Zhang

8 common IC chip cracking principles for single chip decryption methods

Single-chip decryption (also known as "IC cracking" or "chip reverse engineering") involves technical means to bypass or break the security protect...
Posted in IC Unlock

Help understanding an amplifier's circuit diagram

by Lily Zhang

Help understanding an amplifier's circuit diagram

Understanding an amplifier’s circuit diagram requires breaking down its core components, signal flow, and functional blocks—regardless of whether i...
Posted in Schematic diagram

How to Check a Zener Diode's Voltage ？

by Lily Zhang

How to Check a Zener Diode's Voltage ？

To verify a Zener diode's breakdown voltage (Vz), you can perform a simple test circuit using a power supply, resistor, and multimeter. Here’s a st...
Posted in Diode

Zener Diode Working

by Lily Zhang

Zener Diode Working

How a Zener Diode Works A Zener diode is a special type of diode designed to operate in the reverse breakdown region, providing precise voltage reg...
Posted in electrical symbols

6 Steps for Creating an Electronic Design Schematic

by Lily Zhang

6 Steps for Creating an Electronic Design Schematic

Creating a clear and functional electronic design schematic is the foundation of any successful PCB project. Follow these 6 essential steps to ens...
Posted in #PCB design

Understanding BJT transistors

by Lily Zhang

Understanding BJT transistors

BJT Transistors: A Comprehensive Guide Bipolar Junction Transistors (BJTs) are fundamental semiconductor devices used for amplification and switchi...
Posted in electrical symbols

What are the 5 pins of the encoder used for?

by Lily Zhang

What are the 5 pins of the encoder used for?

The 5 pins of a typical rotary encoder (e.g., mechanical or incremental) serve specific functions to detect rotation direction, position, and user ...
Posted in electrical symbols

How does the circuit board transmit signals ?

by Lily Zhang

How does the circuit board transmit signals ?

The transmission of signals on a circuit board (PCB) involves the movement of electrical signals through conductive traces, components, and interco...
Posted in PCB

Why is 50Ω the Golden Rule in PCB Design ?

by Lily Zhang

Why is 50Ω the Golden Rule in PCB Design ?

The 50Ω impedance standard is a widely adopted "golden rule" in PCB design, especially for high-speed and RF (radio frequency) circuits. This value...
Posted in Impedance Control PCB

MOSFETs VS TRANSISTORS

by Lily Zhang

MOSFETs VS TRANSISTORS

The terms MOSFETs and transistors are often used interchangeably, but they refer to different types of devices within the broader category of trans...
Posted in Components Sourcing