Method and apparatus for charge control of a portable terminal having a solar battery

摘要

Provided is an apparatus for controlling charging of a portable terminal equipped with a solar battery that converts solar energy into an electrical energy, the apparatus including a thermistor in which a resistance value changes according to a temperature change; a comparator which outputs a first signal when a temperature surrounding the thermistor is less than a preset reference temperature as determined by the resistance value change of the thermistor according to the temperature change and outputs a second signal when the temperature is at least the preset reference temperature or more; and a charging unit which is activated and receives the electrical energy from the solar battery to charge a battery when the first signal is inputted from the comparator, and is deactivated and blocks the charge of battery in case the second signal is inputted.

主权项

1. An apparatus for controlling charging of a portable terminal having a solar battery, the apparatus comprising:
a temperature sensing unit for measuring a temperature change; a comparator for outputting a first signal when a temperature is less than a preset reference temperature and outputting a second signal when the temperature is equal to or greater than the preset reference temperature; and a charging unit for charging a battery with current from the solar battery, wherein the charging unit is activated when the first signal is received from the comparator, and is deactivated when the second signal is received from the comparator.