There are mainly 4 classifications of circuit diagram, they are schematic, block diagram, assembly drawing and printed board diagram. Follow we will introduce them. Schematic It’s also called “electrical schematic diagram”. This kind of diagram, because it directly embodies the structure and working principle of the electronic circuit, is generally used in the design and …
Many engineers still have such problems after debugging PCB. We summarize the steps of debugging. Last article we introduce the first and second steps: detection before power on & power on test. This article we will introduce the other work in the debugging of electronic circuit. Step 3: Other work in the debugging of electronic …
4 Steps to Debug PCB: Other Work in The Debugging of Electronic Circuit Read More »
When you inspect PCB board, you must pay attention to some details. In order to be more prepared to ensure PCB board’s quality, we should pay attention to the following 9 tips. It is strictly forbidden to use grounded test equipment to touch the live TV, audio, video and other equipment of the bottom plate to test …
PCB design is not a easy work. Last we talk about the Common Errors in Schematic Diagram and PCB, today we discuss the treatment of power supply and ground wire, common ground processing of digital circuit and analog circuit, the signal line is laid on the electric (ground) layer, treatment of connecting leg in large …
PCB Design: Power, Ground Wire, Digital and Analog Circuit, layout and DRC Read More »
Short circuit of PCB is a very common problem in the production of PCB. There are generally two cases of short circuit, one is that PCB has reached a certain service life. The second situation is that the inspection work in PCB production is not in place. However, these small mistakes in the production of …
Understand the composition and classification of printed circuit board, learn more and find information. Composition The circuit board is mainly composed of pads, vias, mounting holes, wires, components, connectors, fillers, electrical boundaries, etc. the main functions of each component are as follows: Pad: A metal hole used to weld pins of components. Vias: There are …
Before Cleaning All connectors on the circuit board including jumper plug, card board, battery and IC must be carefully pulled out before cleaning. Potentiometer, transformer and solenoid coil (inductive coil) must also be removed from the circuit board. Note: non electronic professional do not do this operation, because if there is no electronic professional technology, …
For people who study electronics, it is natural to set up test points on the circuit board. But for people studying machinery, they might ask what are the test points. Maybe I’m still a little confused. I remember that when I first worked as a process engineer in a PCBA processing plant, I asked many …
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On the PCB, designers often come across devices with metal casings. For example, reset button, USBinterface, network port, etc., but the shell of these devices, should be grounded? What place? Grounding Design Without Metal Casing No metal casing, PCB The components in the circuit board generally do not require grounding and cannot be grounded under …
