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In PCBA processing, people who know PCBA boards do not know that the original PCBA boards also have some basic names, so simply understand some basic name knowledge in PCBA boards:
What are the basic names of PCBA processing
1. Three-in-one board
The three-in-one board is a kind of lithium battery protection in order to save costs.
Basic functions: overdischarge, overcharge, overcurrent, short circuit, undervoltage because all functions are controlled by IC. Therefore, if this IC is broken, it may cause the PCBA board to lose control. That is, during the charging process, if the IC is broken, the line may still be connected. Without IC overcharge protection, the power supply will still be charged when it is fully charged. This will cause the battery to overcharge, heat the battery, and even cause serious problems. Burning or explosion of the battery.
What are the basic names of PCBA processing
2. With lithium battery protection board
PCBA with lithium battery protection is equivalent to double protection. Basic functions: over-discharge, over-charge, over-current, short-circuit, under-voltage, that is, when the large IC is broken, two small ICs can control the entire circuit. After the power supply is fully charged, the line will be disconnected to play a protective role. Avoid hurting people and greater losses.
PCBA processing
What are the basic names of PCBA processing
3. Leftovers
The so-called leftover material is the waste material discarded by the placement machine when mounting and attaching the PCB, or the waste material removed during the repair process, and recycled and reused. Such electronic materials are not unified, and the accuracy of electronic materials is also different. It may not reach the lower accuracy required by itself, or abnormal operation of PCBA may occur. It may even cause the entire PCBA to leak electricity (that is, solder a charged battery on it, and leave it for one night, the entire battery will be out of power)
What are the basic names of PCBA processing
4. Ordinary single section board
The input voltage is generally 5V, and the current is 1A (±200MAH)
The output voltage is generally 5V, and the current is 1A (±200MAH)
1A input is equivalent to charging 1000MAH to the power supply in 1 hour
The normal battery voltage is generally within 3.7~4.2V. After the boost function of PCBA, the output voltage of the power supply is 5V. In this case, the PCBA will heat up, and the slight heat of the power supply is normal.
In fact, there are patch processing in electronic products, and the appearance inspection standard of PCBA is a very basic standard for electronic product acceptance. According to different products and customer requirements, the acceptable requirements for tin beads will be different. Generally It is based on the national standard and combined with customer requirements to determine the standard. Since its opening, the company has won praise from customers and industry with its rigorous technology, excellent quality, fast delivery and perfect service.
