Patent ID: 8519639
Filing Date: 2013-08-27
Classification: H05B,Y02B

Abstract:
1. A solar-controlled light device comprising: (a) a solar cell having a positive end and a negative end wherein said negative end is connected to a common ground; (b) power storage means for storing electrical energy received from said solar cell and for releasing said electrical energy, said power storage means having a positive end and a negative end wherein said positive end is connected to said positive end of said solar cell and said negative end is connected to said common ground; (c) light source for receiving said electrical energy, said light source having a positive end and a negative end wherein said negative end is connected to said common ground; (d) circuit-control means for controlling a circuit from said power storage means to said light source by selectively opening the circuit thereby placing the device into an open mode to power said light source and for closing said circuit and placing the device into a closed mode and terminating said circuit and power to said light source; and (e) current-control means for controlling rate of flow of said current when said circuit is in said open mode, sensing when said current is too low to power said light source, and boosting said circuit to a sufficient power level to power said light source when said power is too low, said current-control means comprised of a transformer having a first coil with a first end and a second end and a second coil having a first end and a second end wherein the first end of said first coil is connected the second end of said second coil by a common line; a resistor-R a transistor-T said first coil and said second coil each comprised of wire of approximately similar gauge with approximately 20 turns therearound thereby bearing a winding turn-ratio of 1:1 and bearing an approximate inductance of about 300 UH per coil, said circuit-control means comprised of a phototransistor having a collector lead and an emitter lead wherein said emitter lead is connected to said common ground, a variable resistor R a transistor, T