DEVICE AND METHOD FOR TRACING MAXIMUM POWER OF SOLAR CELL

摘要

PURPOSE: A device and method for extracting the maximum power of a solar battery are provided to extract the maximum power without respect to the conditions of the solar battery. CONSTITUTION: A device for extracting the maximum power of a solar battery comprises a maximum power extracting system solar battery(110), a maximum power extracting unit(120), a DC-DC converting unit(130), and a battery(140). If the amount of currents increases when the device is set to extract maximum power, a voltage decreases. Therefore, the strength of power decreases. The DC-DC converting unit switches a transistor according to the ratio of on-time to the cycle of a pulse width modulation signal.