A light bulb apparatus includes a head cup, a bottom support, multiple light strips and a bulb shell. The head cup is connected to an external power source. The bottom support is extended from the head cup. Each light strip has a top end and a bottom end. The bottom ends of the light strips are connected to the bottom support. The top ends of the light strips form a top polygonal shape and the bottom ends of the light strips form a bottom polygonal shape. The bottom polygonal shape has a bigger area size than the top polygonal shape. Each light strip has a skewed angle with respect to a middle axis perpendicular to the bottom shape.

A lighting module, including: a baseboard configured to receive a user signal indicating a user lighting preference; a communication submodule configured to receive the user signal and convert the user signal to machine readable data indicating the user lighting preference; a control submodule communicably coupled to the wireless communication submodule for receiving the machine readable data, wherein the microcontroller submodule comprises: memory configured to store a lighting parameter provided by a provider, and a processor configured to generate lighting driver instructions based on the user lighting preference and the lighting parameter; and a lighting mode output submodule configured to output the lighting driver instructions to a lighting driver module of a lighting assembly for controlling light emitting elements of the lighting assembly.

A lighting apparatus includes a light source, a rectifier circuit, a DC-DC converter, an adjustment circuit and a controller. The rectifier circuit converts an AC power to a raw direct current. The adjustment circuit provides an adjustment signal corresponding a light intensity setting of the light source. The controller is coupled to the DC-DC converter and the adjustment circuit. The controller receives the adjustment signal for generating a first PWM signal. The DC-DC converter receives the first PWM signal. The DC-DC converter converts the raw direct current to an output current according to a first duty ratio of the first PWM signal. The output current is supplied to the light source corresponding to the light intensity setting.

A light emitting load driving device includes a first constant current source structured to be serially connected to a first light emitting load group; a second constant current source structured to be serially connected to a second light emitting load group; a first load connection terminal structured to be connected to the first light emitting load group; a second load connection terminal structured to be connected to the second light emitting load group; and a control circuit structured to be supplied a first voltage applied to the first load connection terminal, a second voltage applied to the second load connection terminal, and a reference voltage applied to the control circuit, wherein the control circuit is structured to select a minimum voltage between the first voltage and the second voltage, and the control circuit is structured to equalize the minimum voltage and the reference voltage.

The present application relates to an LED system with controllable power supply and control method and device thereof. The control method comprises: detecting output port voltages of a main driving module, and when a number of ports whose voltage is less than a first preset voltage or a number of ports whose voltage is greater than a second preset voltage exceeds a first preset value, coarsely adjusting the power supply; determining by each of cascaded slave driving modules an adjustment strategy according to its own output port voltages and an adjustment strategy from a subsequent slave driving module, and sending its adjustment strategy to a previous slave driving module; determining by the main driving module an adjustment strategy of the power supply according to the adjustment strategy from the slave driving module and the output port voltages of the main driving module, and fine-adjusting the power supply.

The present application relates to an LED system with controllable power supply and control method and device thereof. The control method comprises: detecting output port voltages of a main driving module, and when a number of ports whose voltage is less than a first preset voltage or a number of ports whose voltage is greater than a second preset voltage exceeds a first preset value, coarsely adjusting the power supply; determining by each of cascaded slave driving modules an adjustment strategy according to its own output port voltages and an adjustment strategy from a subsequent slave driving module, and sending its adjustment strategy to a previous slave driving module; determining by the main driving module an adjustment strategy of the power supply according to the adjustment strategy from the slave driving module and the output port voltages of the main driving module, and fine-adjusting the power supply.

The present application provides a lighting apparatus, including a lighting apparatus body and a control circuit built in the lighting apparatus body, where the lighting apparatus body includes a plurality of LED lamps; the control circuit includes a motor drive sub-circuit and an LED drive sub-circuit, and the LED drive sub-circuit is connected to the LED lamps, and configured to provide an LED drive signal for the LED lamps; and the motor drive sub-circuit is configured to be connected to a load motor outside the lighting apparatus body, so as to provide a motor drive signal for the load motor.

The present application provides a lighting apparatus, including a lighting apparatus body and a control circuit built in the lighting apparatus body, where the lighting apparatus body includes a plurality of LED lamps; the control circuit includes a motor drive sub-circuit and an LED drive sub-circuit, and the LED drive sub-circuit is connected to the LED lamps, and configured to provide an LED drive signal for the LED lamps; and the motor drive sub-circuit is configured to be connected to a load motor outside the lighting apparatus body, so as to provide a motor drive signal for the load motor.

A method of determining a drive signal provided to a light-emitting diode (LED). The method including sensing, via a first sensor, a first light intensity corresponding to a natural light in a room, sensing, via a second sensor, a second light intensity for a zone of the room, determining, via the controller, an expected light intensity, and determining, via the controller, whether the second light intensity exceeds the expected light intensity. The method further including, in response to determining that the second light intensity exceeds the expected light intensity, determining, via the controller, an artificial light intensity, determining, via the controller, the drive signal based on a desired light intensity for the zone of the room, the artificial light intensity, the first light intensity, and the second light intensity, and controlling, via the controller, the driver to provide the drive signal to the LED array.

A method of determining a drive signal provided to a light-emitting diode (LED). The method including sensing, via a first sensor, a first light intensity corresponding to a natural light in a room, sensing, via a second sensor, a second light intensity for a zone of the room, determining, via the controller, an expected light intensity, and determining, via the controller, whether the second light intensity exceeds the expected light intensity. The method further including, in response to determining that the second light intensity exceeds the expected light intensity, determining, via the controller, an artificial light intensity, determining, via the controller, the drive signal based on a desired light intensity for the zone of the room, the artificial light intensity, the first light intensity, and the second light intensity, and controlling, via the controller, the driver to provide the drive signal to the LED array.