Mobile Phone Battery Repair Instrument Design and Application(a)
1 Introduction hp laptop battery
Required the development of contemporary society, almost everyone in the use of mobile phone, mobile phone has become an indispensable daily necessities. And people in frequent use, have gradually found that cell phone batteries can not meet our demands, often in use for some time after the emergence of electric charge does not go in, shorter discharge time situation. Just a good rechargeable batteries, no electricity no time, and thus a cell phone hp pp2182l, hp 345027-001 battery repair repair instrument on was born.
Second, the design principle
(1) introduction of mobile phone batteries
Is now generally used mobile phone batteries for lithium-ion battery. Mainly due to lithium-ion hp 342661-001, hp pavilion dv8000 battery are lithium-ion (Li-Ion) and lithium polymer (Li-Pol), battery with light weight, large capacity, small resistance characteristics. But we need to in accordance with the characteristics of its charge, otherwise, its damage and will have a significant number of its rechargeable will greatly discount.
Rechargeable lithium-ion in the process should not have required the attention of charge and over-discharge, it has its own minimum voltage and maximum voltage, the general minimum voltage between 2.2V to 2.3V, the maximum voltage between 4.2V to 4.3V, so we in the design of the circuit when necessary attention to setting discharge termination voltage and hp hstnn-db20, hp 395789-001 charge termination voltage.
(B) design
The design of the circuit is mainly divided into two stages of discharge and recharge. General battery charger is only charging easy, and the repair Miriam many a discharge process.
Discharge phase are first the residual hp 396008-001, hp pavilion dv9000 battery power completely release and discharge voltage reaches its termination value. Discharge phase discharge voltage termination of the value of attention to the settings, if carried out on the battery discharge, the battery will cause great damage.