Patent ID: 8193757
Filing Date: 2012-06-05
Classification: H02J,H02M,Y02E,Y10S

Abstract:
1. A photovoltaic circuit for supplying an output current, the photovoltaic circuit being coupled to a tank module and a photovoltaic transformation module, the photovoltaic transformation module being configured to receive an optical energy and transform the optical energy into a current, the photovoltaic circuit being configured to receive and modulate the current as the output current supplied to the tank module, the tank module generating a tank status signal, the photovoltaic circuit comprising: a first process module, being coupled to the tank module and the photovoltaic transformation module, and configured to generate a first divided current in response to the current and modulate the first divided current to generate a first modulation current, the first process module comprising: a plurality of second process modules, being connected to the first process module in parallel and coupled to the tank module and the photovoltaic transformation module, and configured to generate a plurality of second divided currents in response to the current and modulate the second divided currents to generate a plurality of second modulation currents; and a first control module, being connected to the gate of first switch element of the first process module, the second process modules and the tank module, and configured to generate a charge protection signal in response to the tank status signal of the tank module and generate a control signal to the process modules in response to the first divided current, the first modulation current, a last output current, the charge protection signal and an maximum power point tracking (MPPT) way so that the process modules output the modulation currents as the output current supplied to the tank module in a interlaced way in response to the charge protection signal, and the first switch element of the first process module operates to control output of the first modulation current in response to the control signal.