The use of lithium ibm laptop battery on the protection of security. To this end, O2 Micro in power management for portable devices developed by Cool Charge solutions, the integration of a project called Cool Battery Technology battery protection technology, which is the main feature of a traditional general Chargers do not have OVP (over Voltage Protection) and OCP (Over Current Protection) function to protect the two battery, the technology has been Cool Charge IC chip embedded in them. Cool Charge IC chip used, the power charger to a large extent, take on the responsibility to protect the battery. Cool Charge IC subject to the control of the charger in comparison with the traditional design (see Figure 1), needed to significantly reduce the external device and eliminate the need for Q3 and Q4 part of the design, reducing the failure rate. Preserved in the Q1 and Q2 (to improve the original design of components) between, Cool Charge IC set up a detection point, the factory settings, the Detection of point voltage and current settings are slightly smaller than the 02K6928, 02K7054, thinkpad r60 battery, 40y6797 battery manufacturers to set safety requirements.
In this way, in charge voltage or current beyond the Cool Charge IC set up security after the voltage or current value, IC control Q2 off, the first battery Protective effect before the cut off charge; from the frequency of detection, protection, detection of battery time for the millisecond level, and through the chip to detect, you can easily achieve the level of seconds per million, can be very high The frequency of detection in a row, thus realizing the first step in the protection of the 40y6799, fru 92p1139, fru 92p1141, fru 92p1137 battery pack.
