Patent ID: 8674675
Filing Date: 2014-03-18
Classification: G05F,H01L,Y02E

Abstract:
1. An electronic device for optimizing the output power of a solar cell, the electronic device comprising: a variable series resistor being coupled in series between the solar cell and a load; a control unit that is configured to control the variable series resistor; a sensor for measuring an output voltage; and a sensor for measuring the output current of the solar cell; and the control unit being configured to vary the resistance of the variable series resistor over time such that the first order derivative of the output voltage over time has a constant value, to monitor the second order derivative of the output current over time simultaneously, to detect whether the second order derivative of the output current over time exceeds a predetermined threshold value and to identify the corresponding values of the output voltage and the output current as a maximum power point (MPP) of the solar cell.