| 主权项 |
1. A circuit structure for adjusting LED color temperature curve, comprising:
a power source provided with a positive pole and a negative pole; at least a first LED light set provided with plural first LED lights connected in series; at least a second LED light set connected with the first LED light set in parallel and provided with plural second LED lights connected in series; a current detection circuit provided with a first variable resistance and a first transistor, one end of the first variable resistance connected with the positive pole of the power source and an emitter of the first transistor, the other end of the first variable resistance connected with a base of the first transistor, an input end of the at least one first LED light set, and an input end of the at least one second LED light set; and a color temperature curve adjusting circuit provided with a resistance, a second variable resistance, and a second transistor, one end of the resistance connected with a collector of the first transistor, the other end of the resistance connected with a base of the second transistor and one end of the second variable resistance, the other end of the second variable resistance connected with the negative pole of the power source, a collector of the second transistor, an output end of the at least one first LED light set, and an output end of the at least one second LED light set, wherein the emitter of the second transistor is connected with the input end of one of the first LED lights. |
