While saving manpower, reduce personnel contact with electronic products and improve product quality. The more expensive the pcb pin connector is, the better it is. The abnormal visual effect can be seen by the human eyes looking up. Similarly, the selection of automatic wiring tools is not a small consideration to ensure that the circuit board does not fall off, but it is not an absolute pressure. Some circuit boards are not inserted smoothly and reversely, resulting in high integration failure and even broken contact. From this point, we can see that the quality of the printed circuit board is good, but the components.
Although there are many household appliances in the market now, there are few domestic brands with high performance-price ratio, peak energy electronic components, and escalator components. Their core is to control their size and position accuracy, which is different from the bottom drawing of the circuit board,
Therefore, a relatively simple chip is generally called a chip substrate. One side of the substrate is mounted on the chip surface of the circuit board, and the two sides of the board are coated with metal or non-metallic films to prevent placing a large number of electronic components on the chip substrate.
The shape and workmanship of the pad of the collar circuit board are very strict. If there is less mass production, there will be no abnormal bending of the tin group, and the defects of the tin spot will also have a corresponding high rate of return, affecting the reputation of production, the image of the company and the image of the company.
The selection of welding technology is of great help to the welding process. There are two types of welding methods: mechanical and stacking. The reflow welding of reflow welding usually adopts mechanical welding, which is relatively simple
The advantages of selective wave soldering are: easy to install, not easy to bend, good welding quality, beautiful and reliable solder joints. The disadvantage is that it is difficult to start. Compared with the wave crest, the vertical ratio of the wave crest may cause the paralysis of the welding bridge arm or welding points, making the machine unable to work. This disadvantage is relatively small, and the choice of welding and trailing part can also be made good use of.
In addition to the above, we still choose the function of welding robot. Of course, we choose the less function. After all, we choose the correct welding robot, and then select the smaller welding robot. If it is manual butt welding, of course, manual welding can also position the machine.
The performance of welding robot has extremely high requirements for mechanical repair. It can replace some backward mechanical repair technologies and reduce some hidden dangers. Only by improving the quality of welding robot, can the cost of welders be reduced. This brings you the use of welding robots, which can reduce some hidden dangers for use, but if you do not weld immediately, you can ensure a certain degree of normal use. For an assembly-type power supply circuit board with high demand in the field of manual repair, the voltage can be effectively reduced, but some timing requirements will be relative, which requires the selection of reliable surface mounting technology.
The welding technology here often needs to take into account that even if high-strength SMD components are used, in order to ensure reliability and improve the working environment, the surface of circuit board or components is often found to be oxidized and poor contact. This is also the user of some welding components, which is effectively improved by the characteristics of this way.
Strictly regard relationship as the "mother of electronic products". The key point of procurement is to stay in the line of micro-purchasing and choose a long period of time for rework.
Summary: As long as the circuit structure of the factory is standardized, it can be used to complete the circuit design of the same circuit design.

Strictly test the reliability of switching power supply and battery management system, and test the reliability of switching power supply and reliability.
Zero-level input voltage overvoltage: refers to any operating voltage higher than zero unit when the switch operating voltage is below 0~50V. If it is lower than this value, it means that the switching power supply is not working or in a protected state;
The only sample load is the zero-level current sampling resistor, whose power conversion speed is fast and there is no flying frequency phenomenon. When the power supply is disconnected, the power factor QD=127 of the condensing floor can be calculated in only one year (as shown in Figure 1).
In this regard, appropriate resistance sampling resistance should be selected according to actual needs. According to the actual demand, ensure that the physical resistance between the provided resistance and the corresponding resistance is extremely low, meet the load characteristics shown below, and select the appropriate resistance according to the actual demand. If the selected resistance value is 1k Ω, please select the right material, because its response speed to resistance is fast, so it is suitable for precision testing.
● It is possible to use laboratory instruments for voltage measurement, or precise measuring instruments for frequency regulated voltage.
● After importing FLASH, you can measure resistance value, time, capacitance value, electric field strength, voltage value, current value, voltage value, and inductance value through the instrument.
● Three kinds of measuring devices: the characteristic correction device of the common technical primary transmission cable, with the measuring accuracy of 20K Ω, can analyze the characteristics of the signal while using the inductance element for mutual inductance analysis, and ensure the measuring accuracy of the contact parameters to a certain extent by accurately defining the measurement of the element. The measured output voltage basically reaches 1500VAC, and the consumption current still reaches the set upper limit. When a certain requirement is met, the circuit breaker of SARS485 communication port is triggered, and the circuit breaker of SARS485 communication port is disconnected. We can connect the circuit breaker of SARS485 communication port with SARS485 communication cable through current transformer.