Safety distance requirements Including electrical clearance (spatial distance), creepage distance (surface distance), and insulation penetration distance. 1. Electrical clearance: The shortest distance measured along the air between two adjacent conductors or between a conductor and the surface of an adjacent motor housing.2. Creepage distance: The shortest distance measured along the insulating surface between two adjacent … Read more
Click the above “Mechanical Electronic Engineering Technology” to follow usCircuit Connecting electronic components and devices according to a predetermined design to form a specific electrical function. Electronic Circuit Connecting electronic components and devices according to a predetermined design, including circuit boards and component assembly, to form the functional parts of electronic devices. Printed Circuit Forming … Read more
Click the Blue Text Follow Us 1. What is SPI SPI stands for Serial Peripheral Interface, which is a serial interface for peripheral devices. SPI is a high-speed, full-duplex, synchronous communication bus with a master-slave structure, occupying only four lines on the chip pins, saving pin space and providing convenience for PCB layout. Due to … Read more
The PCB is produced based on the circuit schematic. Those who have seen a circuit schematic know that it contains various physical and electrical standard symbols. By analyzing the circuit schematic, one can determine which electronic components will be used, the relationships between the components, and the performance characteristics of the circuit.To this end, I … Read more
1. Check User Files The files brought by the user must first undergo routine checks: 1. Check if the disk files are intact; 2. Check if the file is infected with a virus; if there is a virus, it must be removed first; 3. If it is a Gerber file, check if there is a … Read more
When it comes to snake lines, many PCB engineers are not unfamiliar with them. Snake lines are a commonly used routing method in PCB design, primarily aimed at adjusting delays and meeting system timing design requirements. However, many engineers often misuse snake lines, leading to reduced signal quality and a less aesthetically pleasing board. So … Read more
In printed circuit board (PCB) design, many engineers encounter various issues, one of which is whether “three wires can be routed from the circuit board?” The answer is yes; the pads or connection points on a PCB can connect and route multiple wires, including three wires. 1. Why Can Three Wires Be Routed From A … Read more
1. Common Electrical Symbols Drawing Methods 1. Several Basic Concepts: Contact: The dynamic contact point of the electrical device, also known as the contact head. Make: This describes the action of the contact point, closing (connecting) when energized, also known as normally open; a make contact is also called a normally open contact. Break: This … Read more
Early Bluetooth Speaker PCB The above is an early Bluetooth speaker PCB. Interested friends can reply with “Early Bluetooth Speaker” on the public account homepage to obtain the download link.
Since the launch of the Raspberry Pi Pico, many innovative applications have emerged. The RP2040 features a dual-core Arm Cortex M0+ processor, capable of running at clock speeds of up to 133MHz or even higher, and comes with a rich set of peripherals such as SPI, I2C, and up to 16 PWM signals, making it … Read more