Chip inductors, also known as power inductors, high current inductors and surface-mounted high power inductors. Features: miniaturization, high quality, high energy storage and low resistance. In general, the inductance of an electronic circuit is a hollow coil, or a coil with a magnetic core. And the power inductor also has the hollow coil, also has [...]
I. failure reason of SMD inductive power: 1. The magnetic core will not release if the magnetic flux density is too high during the processing; 2. When there are impurities or hollow materials in the magnetic core, the magnetic permeability of the magnetic core will be deviated because the magnetic field of the magnetic core [...]
After the production of FPC flexible circuit board products, circuit board factories often need to use the correct method for quality testing, so as to ensure the quality of circuit board, so how do we test correctly? Caber technology production of every FPC circuit board products have to go through strict quality inspection, today caber [...]
Notes for pressing holes 1. The pressing hole can reduce the wave peak welding set by welding this kind of components. It is easy to change parts. 2. New drill bit drilling is generally adopted for pressing hole, because of the high requirement for its precision, our company's conventional pressing hole control tolerance is /-0.05mm, [...]
What is inductance Inductance, or inductance, is a property of a closed circuit that gives rise to an electromotive force to resist a change in the current passing through the closed circuit. This inductance, called self-inductance, is a property of the closed loop itself. If the current in one closed circuit changes and an electromotive [...]
With the rapid progress of technology, the use of PCB boards is becoming more and more widespread, and more and more customers of the line will have such problems: How should the PCB circuit board be maintained? How can I make the life of the circuit board longer? Now share some knowledge of PCB circuit [...]
1: plug hole Standard: The via hole must be plugged; white light is not allowed (green light is allowed), and the ring is processed according to the customer's document. If the ring is covered, part of the hole is allowed to turn yellow, but the ring is not accepted copper. Project documentation requirements 2: cover [...]
Notes on crimping holes 1. The crimping hole can reduce the wave soldering set for soldering such components once. It is very easy to replace parts. Of course, if you change it many times, it will affect the reliability of the hole. 2. The crimping hole is generally drilled with a new drill bit, because [...]
1. Gerber file preprocessing The wiring and functional characteristics on the FPC are designed by the customer, and the circuit board factory is only responsible for manufacturing it. The circuit board factory often finds that the design information sent by the customer does not meet the board's process capabilities, such as line width, line The [...]
Maybe you just completed the etching of the circuit board in the project and everything looks very successful. But you also know that over time, the copper traces on the circuit board will slowly turn black and green. This article describes a simple method for tinning copper traces on a circuit board. If you have [...]