Apparatus and method for preventing an electronic equipment damage by rising battery temperature

摘要

The present invention relates to an apparatus and method for preventing damage to a portable electronic device according to an increase in a battery temperature during the charging to prevent damage to the portable electronic device due to a rise in the battery temperature. In the portable electronic device damage prevention apparatus according to the increase in battery temperature applied to the first embodiment according to the present invention, the PMU 400 is outputted from the battery pack 100, and the voltage value dropped by R1 and R2 ( V _T2 ) is input through 'ADCIN' terminal and converted into digital data. Subsequently, the PMU 400 detects a battery temperature corresponding to the voltage value V _T2 converted into digital data, and if it is determined that the detected battery temperature is greater than or equal to a predetermined value (for example, 50 to 55 ° C.), the 'I2C' The terminal notifies the CPU 300 that the battery temperature is 50 to 55 ° C. or more. The CPU 300 'off' the 'FET' connected to the 'GPIO' terminal, and the resistance value R connected to the charging unit 200 becomes R = R3 + R4 so that the battery pack 100 is charged. The charging current is regulated downward (normally, charging current is 0.5 A). Accordingly, the present invention is a very useful invention that prevents damage to the portable electronic device by preventing the temperature rise of various components inside the portable electronic device.;Battery Pack, DMB, PMP, PDA, PMU, Battery Temperature, Charge Current