Patent ID: 11895955
Assignee: SHENZHEN NUMBER ENERGY SAVING CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC A  H  Y | IPC A  H

Claim 5:
6. A combined LED lighting system for plant growth, comprising an LED light track and at least two LED light strips which slidably connect with and longitudinally slide along the LED light track, wherein the LED light track comprises:
a remote control signal receiver for receiving a remote control signal;
a processing device for processing the remote control signal received by the remote control signal receiver to generate a control signal for controlling powers of the LED light strips is connected with each of the LED light strips, respectively;
an LED constant current power supply and a constant current control circuit are configured within each of the LED light strips, and
the constant current control circuit is connected with the processing device and receives the control signal regarding the power of each of the LED light strips sent from the processing device to control the LED constant current power supply;
wherein the processing device converts the control signal for controlling the powers of the LED light strips in the remote control signal into a PWM signal and sends the PWM signal to the constant current control circuit, and a duty ratio of the PWM signal is a percentage of a controlled maximum power of the LED light strips; and
wherein the LED constant current power supply further comprises a negative feedback circuit, wherein the negative feedback circuit comprises an LED constant current sampling circuit, of which an output is connected with the constant current control circuit, and the constant current control circuit adjusts the PWM signal according to the output of the LED constant current sampling circuit.