Cell phone lithium battery protection board test

Source: 2020 - 03 - 31 it hits: what time is the mobile phone lithium plate protection board? There is a piece of circuit board between cell phone lithium batteries, the maintenance of the circuit board is lithium battery plate. Cell phone lithium battery maintenance board is made up of a few not conductive fiber board, and then a layer of oil on them, can rise to maintenance of batteries, battery overcharge, and a short circuit to avoid short circuit. Because the cell phone lithium battery maintenance board plays an important role, so the function of maintenance board test is necessary. Cell phone lithium battery maintenance plate test is more critical one module in large current shrapnel micro needle module, can have the function of conductive and cohesion, to ensure the stability of the test. Cell phone lithium battery maintenance plate working principle of mobile phone lithium battery maintenance generally includes control IC, MOS switch, capacitor, resistor, NTC, etc. Control IC can detect battery state of over-voltage, over-current and short-circuit. When the battery voltage or a current exceed the specified value, can control the MOS switch is closed in 10 milliseconds, to ensure the safety of the battery, extend battery life. When the environmental temperature of the battery, the NTC resistance is reduced, can use electrical equipment or charging equipment timely response, control the internal interrupt, stop charging and discharging. Cell phone lithium battery maintenance board test the main functions of the cell phone lithium battery maintenance board test including the NTC resistance test, identify resistance testing, testing materials, short circuit maintenance test, resistance test, etc. Large current shrapnel micro needle module has the following features: 1. Current is too large, large current shrapnel micro needle module in current can be transmitted current through 50 a. Transmission is stable, no current attenuation. 2. Small pitch adaptation: in a small pitch category test, large current shrapnel microporous module range from 0. 15mm ~ 0. Between 4 mm, stable and reliable. It for the maintenance of cell phone lithium battery plate testing provides a good solution, its form of expression and life far beyond the sensor module. 3. High service life: through the test, the average service life of large current shrapnel microporous module for more than 20 w, often without change, save manpower and material resources and money to improve the test efficiency. 4. No puncture: large current shrapnel microporous module in the process of connecting almost won't cause puncture or damage to the connector. The use of safe and reliable. Large current shrapnel micro needle module can have such a powerful features, because z - kay Tone, the development and production of high precision modular plan/beryllium copper and nickel alloy material, produced by the laser equipment and special technology, coupled with the late and hard work, gold-plated processing, greatly improve the conduction function of shrapnel. Therefore, in order to test the cell phone lithium battery maintenance board in play an important role.