Abstract: A vehicle interior illumination device includes an illumination lamp that is provided in a vehicle interior and is configured to be turned on to illuminate the vehicle interior, a detector that detects a condition to have the illumination lamp to be turned on, and a controller that controls a lighting of the illumination lamp. When the condition is detected by the detector, the controller lights the illumination lamp with a first light amount and when the condition is not detected by the detector, the controller lights the illumination lamp with a second light amount smaller than the first light amount.

Abstract: A lighting system which can obtain a relaxing effect of the fluctuation of color and brightness regardless of the appearance thereof is provided. The lighting system has a light source emitting illumination light, a memory section storing a lighting signal indicating the illumination light, a reading section reading the lighting signal from the memory section, and a control section controlling the light source based on the lighting signal read by the memory section. The lighting signal is a signal representing at least one of fluctuation of color and brightness in the illumination light by using synthetic waves in which a plurality of waves having different frequencies are synthesized.

Abstract: A lighting control system includes a plurality of light sources, a plurality of light source drivers, each of the light source drivers being configured to adjust a light emission intensity of an associated one of the light sources in at least two levels, and an integrated controller configured to control the light source drivers to control conditions of the light sources in an integrated manner. The integrated controller is configured to control the light source drivers to execute a light intensity transition of reducing the light emission intensity from a first light intensity level to a second light intensity level that is lower than the first light intensity level with respect to each of the light sources such that a timing at which the light intensity transition ends is substantially the same for each of the light sources.

Abstract: A lighting control system includes a plurality of light sources, a plurality of light source drivers, each of the light source drivers being configured to adjust a light emission intensity of an associated one of the light sources in at least two levels, and an integrated controller configured to control the light source drivers to control conditions of the light sources in an integrated manner The integrated controller is configured to control the light source drivers to execute a light intensity transition of reducing the light emission intensity from a first light intensity level to a second light intensity level that is lower than the first light intensity level with respect to each of the light sources such that a timing at which the light intensity transition ends is substantially the same for each of the light sources.

Abstract: A vehicle interior illumination device includes an illumination lamp that is provided in a vehicle interior and is configured to be turned on to illuminate the vehicle interior, a detector that detects a condition to have the illumination lamp to be turned on, and a controller that controls a lighting of the illumination lamp. When the condition is detected by the detector, the controller lights the illumination lamp with a first light amount and when the condition is not detected by the detector, the controller lights the illumination lamp with a second light amount smaller than the first light amount.

Abstract: A lighting system which can obtain a relaxing effect of the fluctuation of color and brightness regardless of the appearance thereof is provided. The lighting system has a light source emitting illumination light, a memory section storing a lighting signal indicating the illumination light, a reading section reading the lighting signal from the memory section, and a control section controlling the light source based on the lighting signal read by the memory section. The lighting signal is a signal representing at least one of fluctuation of color and brightness in the illumination light by using synthetic waves in which a plurality of waves having different frequencies are synthesized.

Abstract: A load control apparatus is provided in which a circuit of detecting an overcurrent can be correctly operated even if a first capacitor (C1) for noise measures is disposed. Since a second capacitor (C2) is provided between a gate and a drain of an FET (T1), when the voltage (V1) of a point (P1) decreases, a part of the gate current of the FET (T1) bypasses the FET (T1) and flows to the capacitor (C2), and the amount of charge supplied to the gate of the FET (T1) decreases. Therefore, the increase of the drain current of the FET (T1) can be suppressed and a sudden change of the voltage (V1) can be prevented. As a result, the voltage (V1) can be prevented from decreasing to such a degree that the comparator (CMP1) cannot operate, and the comparator (CMP1) can be prevented from malfunctioning.

Abstract: A load control apparatus is provided in which a circuit of detecting an overcurrent can be correctly operated even if a first capacitor (C1) for noise measures is disposed. Since a second capacitor (C2) is provided between a gate and a drain of an FET (T1), when the voltage (V1) of a point (P1) decreases, a part of the gate current of the FET (T1) bypasses the FET (T1) and flows to the capacitor (C2), and the amount of charge supplied to the gate of the FET (T1) decreases. Therefore, the increase of the drain current of the FET (T1) can be suppressed and a sudden change of the voltage (V1) can be prevented. As a result, the voltage (V1) can be prevented from decreasing to such a degree that the comparator (CMP1) cannot operate, and the comparator (CMP1) can be prevented from malfunctioning.

Abstract: A booster device for increasing a voltage at a voltage supply point of a power supply circuit for supplying a driving voltage to an electronic control circuit is provided. The power supply circuit includes a series-connected circuit having a diode, a resistor, and a capacitor which is connected to a DC power supply. One end of the capacitor is connected to a ground and a connection point of the resistor and the capacitor serves as the voltage supply point. The booster device includes a clamp circuit, an oscillation circuit, and a booster circuit that increase a voltage output from the DC power supply. When the voltage at the voltage supply point falls below a predetermined threshold voltage, the booster device supplies the increased voltage at the voltage supply point.

Abstract: A booster device for increasing a voltage at a voltage supply point of a power supply circuit for supplying a driving voltage to an electronic control circuit is provided. The power supply circuit includes a series-connected circuit having a diode, a resistor, and a capacitor which is connected to a DC power supply. One end of the capacitor is connected to a ground and a connection point of the resistor and the capacitor serves as the voltage supply point. The booster device includes a clamp circuit, an oscillation circuit, and a booster circuit that increase a voltage output from the DC power supply. When the voltage at the voltage supply point falls below a predetermined threshold voltage, the booster device supplies the increased voltage at the voltage supply point.