Ccs Corporation

Yuichiro Tanaka

Kenji Yoneda

Sho Nakano

Jun Konishi

Kento Kubo

Hirokazu Suzuki

Eiji Itou

In order that a power supply device capable of identifying the type of a connected LED light output device and outputting voltage or current suitable therefor completely eliminates the need to provide an additional circuit for the type identification on the LED light output device side and requires only a power supply cable for the connection, in an unconnected state with the LED light output device, electrical continuity between a second terminal to be connected to the cathode of an LED and a ground is cut, and when a transition from the unconnected state to a connected state is made, the voltage of the second terminal is measured to, on the basis of the measured voltage, identify the type of the connected LED light output device with the electrical continuity between the second terminal and the ground kept cut.

Power supply device used for LED light output device

In an LED illumination system including a power supply device having a function of adjusting an amount of a supply current and an LED illumination device connected to the power supply device, the LED illumination device includes: an LED circuit; a bypass circuit; and a distribution circuit that distributes a current supplied from the power supply device at a predetermined fixed ratio regardless of a current value and supplies one part thereof to the LED circuit and the other part thereof to the bypass circuit.

LED illumination system, LED illumination device, and brightness adjustment method for LED illumination device

In order to provide a lighting control power supply that makes it possible to reduce the number of inputs required for a user when setting each of control parameters, and achieves an intuitive transition between setting input screens of each of control setting items in a plurality of lighting devices, it is configured to, when an input in a first direction is given to an input device, cause a display device to display a setting input screen related to a controller being different than before the input, and it is configured to, when an input in a second direction is given to the input device, cause the display device to display a setting input screen related to the control setting item being different than before the input.

Lighting control power supply

Provided is a power supply device capable of preventing a drop in the voltage supplied to another machine that is connected aside from LED lighting devices, and continues driving the other machine. This power supply device is equipped with a plurality of LED drive circuits provided in parallel, corresponding respectively to a plurality of LED lighting instruments to drive each of the LED lighting instruments in a predetermined light-emission mode. The plurality of LED drive circuits and the other machine are connected to a DC supply unit having such constitution that a direct current power supply voltage is converted into a predetermined direct current voltage and supplied thereby. The power supply device is further provided with a constant current circuit whereof the input side is connected to the DC supply unit and the other machine, and the output side is connected to the plurality of LED drive circuits.

Power supply device and LED lighting apparatus

In order to provide an LED light emitting device that can easily control a color temperature of white light, the LED light emitting device is provided with a plurality of types of light emitting parts that: respectively have LED elements that emit ultraviolet radiation or violet color visible light, and phosphors that absorb the ultraviolet radiation or violet color visible light to emit colored light; and emit the colored light, wherein: the colored light emitted by the plurality of types of light emitting parts become white light when all mixed with each other; the LED elements of the plurality of types of light emitting parts are all the same ones, and mounted on a single base material; and two or more light emitting parts overlap with each other in their parts.

Growing community of inventors

Kyoto, Japan

Yuichiro Tanaka