Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Patent
1997-05-08
1999-08-03
Wong, Peter S.
Electricity: power supply or regulation systems
In shunt with source or load
Using choke and switch across source
323285, 323299, 323906, 363 79, G05F 500
Patent
active
059329947
ABSTRACT:
A solar cell power source device is disclosed which optimizes the power output of the solar cell by detecting a maximum power point of the solar cell and controlling the duty cycle of a switching transistor in a switching power converter such that the output current of the solar cell follows the maximum power point. Also shown is a pulse width modulation controller which multiplies the output voltage of the solar cell by the output current of the solar cell to obtain a power detecting signal, samples the power detecting signal during two different sample periods to determine if the power output is decreasing, and modulating the pulses output to the switching transistor of the switching power converter in order to maintain the power output of the solar cell at the maximum power point.
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U.S. application No. 08/839,865, Jo et al., filed Apr. 22, 1997.
Jo Hyun-min
Kim Yong-ho
Han Y. J.
Samsung Electronics Co,. Ltd.
Wong Peter S.
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