Patent ID: 11956871
Assignee: HANGZHOU YUN LED CHIP PHOTOELECTRICITY TECH CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. A lighting system comprising:
a current source;
a signal edge generator configured to generate signal edges and output the signal edges to the power supply line; and
a plurality of light-emitting diode (LED) modules, where each LED module comprises an LED group and an LED driver to drive the LED group based on the signal edges from the power supply line;
wherein:
the LED modules are electrically connected between a common anode and a common cathode; the common anode is electrically connected to the current source;
the signal edge generator comprises a controllable switch module and a control circuit;
the controllable switch module comprises a control port, an input port and an output port;
the control port of said controllable switch module is electrically connected to said control circuit, the input port of the controllable switch module is electrically connected to the common cathode, and the output port of the controllable switch module is electrically connected to the ground;
the controllable switch module comprises an auxiliary control port, a first controllable switch, a second controllable switch, and a current limiting resistance;
the first controllable switch comprises a first control port, a first input port, and a first output port;
the first control port electrically connects to the auxiliary control port of the controllable module;
the first control port electrically connects to the control circuit;
the first input port electrically connects to the input port of the controllable module;
the first output port electrically connects to ground;
the second controllable switch comprises a second control port, a second input port, and a second output port;
the second control port electrically connects to the control port of the controllable switch module;
the second control port electrically connects to the control circuit;
the second output port electrically connects to ground;
one port of the current limiting resistance connects to the input port of the controllable switch module; and
another port of said current limiting resistance connects to said second input port.