In a load control system as described, each of a plurality of switch circuits includes a switch electrically connected between an associated one second terminal out of a plurality of second terminals and a first terminal. A control circuit controls the switch that each of the plurality of switch circuits includes and thereby controls supply of power to a load associated with each of the plurality of switch circuits. A power supply circuit is electrically connected between the plurality of second terminals and the first terminal and receives power from a power supply via the first terminal and at least one second terminal out of the plurality of second terminals and thereby generates power to be supplied to at least the control circuit.

In a load control system as described, each of a plurality of switch circuits includes a switch electrically connected between an associated one second terminal out of a plurality of second terminals and a first terminal. A control circuit controls the switch that each of the plurality of switch circuits includes and thereby controls supply of power to a load associated with each of the plurality of switch circuits. A power supply circuit is electrically connected between the plurality of second terminals and the first terminal and receives power from a power supply via the first terminal and at least one second terminal out of the plurality of second terminals and thereby generates power to be supplied to at least the control circuit.

An LED lighting device is disclosed. The LED lighting device includes an LED circuit having at least two LEDs that are mounted on a substrate and separated from each other by a distance of 3 millimeters or less. At least one of the at least two LEDs includes a different phosphor coating than that of at least one other LED of the at least two LEDs. The LED lighting device also includes a switch selectable by an end user to enable a change in a color of light emitted from the LED lighting device by causing one of at least a change in brightness or turning ‘on’ or ‘off’ the at least one LED with the different phosphor coating of the at least two LEDs in the LED circuit. The substrate and the switch are integrated within the LED lighting device.

An LED lighting device is disclosed. The LED lighting device includes an LED circuit having at least two LEDs that are mounted on a substrate and separated from each other by a distance of 3 millimeters or less. At least one of the at least two LEDs includes a different phosphor coating than that of at least one other LED of the at least two LEDs. The LED lighting device also includes a switch selectable by an end user to enable a change in a color of light emitted from the LED lighting device by causing one of at least a change in brightness or turning ‘on’ or ‘off’ the at least one LED with the different phosphor coating of the at least two LEDs in the LED circuit. The substrate and the switch are integrated within the LED lighting device.

Example embodiments relate to light system with anti-parallel LEDs. One example light system includes a driver configured to generate a DC current. The light system also includes at least one first group, a first group thereof including a first and a second LED connected in anti-parallel. The light system also includes at least one second group, a second group thereof including a first and a second LED connected in anti-parallel. The at least one second group is connected in series with the at least one first group. Additionally, the light system includes control circuitry configured for selectively operating the first and second group in at least one first one and at least one second mode.

A combined lamp strip controller and a combined lamp strip control method related to the technical field of circuit control. The lamp strip controller comprises: a power supply circuit, a control circuit, an infrared transmitting circuit, an infrared receiving circuit and a drive circuit, wherein the drive circuit is a bridge drive circuit, and the infrared transmitting circuit, the infrared receiving circuit and the drive circuit are connected to the control circuit in an integrated manner. In the embodiments of the present invention, an infrared sensing assembly is used to sense changes in the environment around a lamp strip, and finally the lamp strip is driven by an infrared sensing control signal to switch a lighting mode, and one or more program instructions are further used to implement at least one sensing control mode.

A driver circuit that includes an input side including a power input circuit and an output side including a light emitting diode (LED) output current circuit. The output side of the driver circuit includes an output smoothing capacitor for controlling flicker percentage. A light emitting diode (LED) power supply circuit is present between the input side and the output side for controlling current from the AC power input circuit to the light emitting diode (LED) output current circuit. The LED power supply circuit includes at least two linear current regulators that are connected in parallel. The circuit also includes a controller circuit including a controller for signaling the light emitting diode (LED) power supply to control current to the light emitting diode (LED) output current circuit to provide a lighting characteristic.

A driver circuit that includes an input side including a power input circuit and an output side including a light emitting diode (LED) output current circuit. The output side of the driver circuit includes an output smoothing capacitor for controlling flicker percentage. A light emitting diode (LED) power supply circuit is present between the input side and the output side for controlling current from the AC power input circuit to the light emitting diode (LED) output current circuit. The LED power supply circuit includes at least two linear current regulators that are connected in parallel. The circuit also includes a controller circuit including a controller for signaling the light emitting diode (LED) power supply to control current to the light emitting diode (LED) output current circuit to provide a lighting characteristic.

A lighting system for tunnels or similar works. The lighting system with LED diodes, including at least one lighting strip with LED diodes, with at least one set of LED diode modules, the modules of a set being divided up into subsets of one or more modules supplied with power by respective power supply buses, an electronic system supplying power to the strip, making it possible to power up, according to a first mode of operation, all the power supply buses and, in a second mode of operation, only a part of the power supply buses, so as to reduce the electrical consumption of the strip.

A panel light has an isolated low voltage direct current auxiliary power supply audio interface. The LED panel light has a DC power supply supplying the LED panel light. The DC power supply dim control is formed on the DC power supply supplying the LED panel light. The DC power supply dim control is configured as an input that adjusts the voltage or current of the LED panel light. A DC isolator circuit is connected to the DC power supply dim control. A low-voltage and dim power supply is connected to the DC isolator circuit. The low-voltage and dim power supply has an audio interface connection. The audio interface connects to the audio interface connection. The audio interface connection has an audio interface positive 12 V line, an audio interface ground line, and an audio interface dim line. A sensor connects to the audio interface at a sensor output.