Hot bar soldering is the use of heat and pressure to press-weld a wire to a metal weld area. Hot bar soldering is an umbrella term that covers a wide range of soldering methods such as pneumatic, calcined and roll welding. Depending on the method of heating, hot bar soldering can be divided into three […]
Parasitic inductance is an inductance that is not intended to be introduced by the design,but occurs naturally as an additive effect on certain objects.In short, it is always present wherever a wire is located,but its magnitude varies depending on the characteristics of the wire.For example,straight wires usually produce less parasitic inductance than coiled wires.In the
Printed Circuit Board (PCB) is an indispensable component of electronic equipment, which is made of insulating material in accordance with a predetermined design of conductive graphics, including printed circuit, printed components or a combination of both. This insulating substrate to provide electrical connections between the components of the conductive pattern, that is, known as the
PCB card edge connector/contact is an electronic component whose function is to connect and stabilise various components on a circuit board, especially important in those highly integrated and component-dense electronic devices. It is generally assembled on the edge of the circuit board, with the help of snap-fastening or soldering technology and another circuit board or
Fiducials on pcb usually refer to markings or areas set at specific locations on a PCB for purposes such as element positioning, inspection and debugging. These fiducials not only play a guiding role in the production process of the PCB, but are also critical in subsequent testing and maintenance. Classification of fiducials on pcb :Reference
PCB diagrams, which are mapped drawings of circuit boards, depict in detail the circuit board’s alignment, the location of components, and so on. How to read a circuit board has become a threshold that every electronic engineer must cross. How to read a circuit board: Familiarise yourself with the general working principle, workflow and signal
Cloning pcb board refers to the process of making circuit boards, assembling components and debugging circut boards on the basis of physical electronic products and their printed circuit boards through reverse engineering means of in-depth analysis of the circuit boards to accurately recover the original product documents, bill of materials, circuit schematics and other key
What is in a circuit board?A circuit board is a conductive substrate whose main function is to connect and support electronic components. It usually consists of a substrate material, a conductive path, and an insulating layer. In electronic devices, circut boards play a key role in transmitting signals, providing power, and processing signals, and are
Thermal cutoff, also known as thermal cutoff, is a sensitive temperature-sensing circuit cutoff device. It can keenly capture the overheating phenomenon generated by electrical or electronic products during abnormal operation and decisively cut off the circuit, thus effectively preventing the occurrence of fire. This safety device is widely used in a variety of household appliances
Circuit board fuse serves a vital protective role in electronic equipment. As an overcurrent protection device,fuse in circuit board can effectively prevent damage to circuits caused by overloads or short circuits. Printed circuit board fuses are available in a variety of shapes, including bar wire, sheet (bare), glass tube, ceramic tube, plastic sheet with metal
In the process of maintenance and overhaul of electronic equipment, how to check capacitor is a crucial link. It as electronic circuits in the basic components, the stability of its performance is directly related to the working state of the entire circuit. Therefore, mastering the correct detection method is important for timely detection and resolution
With the rapid development of modern communication technology, high frequency PCB communication circuits have gradually become the core component of various electronic devices. In order to ensure the stable performance and signal quality of high frequency communication circuits in high frequency environments, the optimisation of signal integrity (SI) is particularly important. 1.SeparationComponents on a PCB
Copper black pcb is high-performance pcb circuit characterised by a black surface, consisting of a copper layer, a substrate and a surface treatment layer. The copper layer of the PCB is susceptible to oxidation when exposed to the air without the application of soldermask, and both sides of the PCB circuits are covered with a
In electronics manufacturing, PCB (Printed Circuit Board) paste reflow is a crucial process that determines the quality of the connection between the electronic components and the PCB board. Although specialised equipment is preferred in most cases, homemade PCB paste reflow is also a viable option for small batch production or experimental purposes. But how to
Defect pad smt thermal pad is closely related in the production process. Good smt thermal pad design not only prevents defective pads due to overheating, but also improves the overall weld quality. For example, when a hot pad on a solder joint fails to provide sufficient heat, it can lead to uneven melting of the
Soldermask is a layer of PCB oil that covers the copper wires and PCB material to insulate and protect the outside of the PCB from short circuits and the environment. But how to assemble own pcb solder mask? How to assemble own pcb solder maskPre-cleaning: Before the soldermask process is implemented, the PCB surface must
Vias are an important part of printed circuit board (PCB) design and have a significant impact on signal integrity and power integrity. Via impedance calculation not only relates to the signal transmission quality, but also directly affects the stability and performance of the circuit. In PCB layout design, a reasonable through-hole design and its impedance
The thermostat circuit board is the control centre of the thermostat, which integrates temperature sensors, control circuits and drive circuits and other functional modules. The temperature sensor is responsible for real-time monitoring of the ambient temperature and transmits the signal to the control circuit. The control circuit compares the preset temperature value with the current
Circuit board thermocouple connectors are specialised connectors used to connect thermocouple sensors to electronic circuit boards. Thermocouple sensors are commonly used to measure temperature and play a vital role in different environments (e.g. industrial, automotive, home appliances, etc.). The main function of the connector is to transfer the temperature and voltage signals from the thermocouple
Cleaning solution for circuit boards, commonly known as board washer, or circuit board cleaner, is a chemical industry cleaner solution used to clean flux and rosin on the surface of PCB boards after soldering, and is used for semiconductor-related parts, electronic parts, and metal parts, and is an ‘environmentally friendly’ cleaner that combines high cleanliness
PCB cutting is a common operation in electronics manufacturing. While specialised equipment such as laser cutters and shears can provide highly accurate cuts, what to cut pcb with nipper is still a practical and cost-effective option in some cases. Common types of nipperDiagonal Nose nipper: Diagonal nose pliers are the most commonly used cutting tool
In the production process of electronic products, the quality of PCB design directly affects the reliability and performance of the final product. Welding as a key link in the PCB assembly process, the requirements of the design stage is particularly important. The following will be talked about from the welding point of view, design PCB
Radio frequency circuit board plays a vital role in modern communication systems, especially in applications such as wireless communications,radar systems and medical devices. However, RF signals are susceptible to various types of interference during propagation, which can lead to signal distortion and system performance degradation. To ensure the reliability and stability of RF circuit board,
LED control board is a kind of electronic circuit board used to control light-emitting diodes (LEDs). Its main function is to control the brightness, colour and flashing mode of LEDs by adjusting the power supply and signal. LED control boards are widely used in various types of lighting equipment, display screens, advertising boards and other
