Patent ID: 7645973

Claim:
A solar-tracking power generating apparatus, comprising: a solar-tracking unit including a disc being provided on an upper side with an even number of at least two pairs of sensing units and a plurality of solar batteries; the two sensing units in each pair are located in a straight line to be diametrically opposite to each other, such that all the straight lines containing the pairs of sensing units intersect with one another at a center of the disc to equally divide a 360-degree central angle of the disc, and the two sensing units in each pair are equally distant from the center of the disc; and each of the sensing units including a solar battery sensor or a photosensitive diode sensor; a transmission unit being connected at an upper end to a lower side of the disc and at a lower end to a base; a control unit for receiving via a sunlight sensing circuit a signal produced by the solar-tracking unit, and controlling the transmission unit via a transmission unit circuit to change a solar-tracking angle of the solar-tracking unit; and wherein the control unit further comprises an 89C51 chip for receiving a signal produced by the solar-tracking unit via the sunlight sensing circuit and controlling the transmission unit via the transmission unit circuit to change the solar-tracking angle of the solar-tracking unit.