Abstract: In a conventional power supply system, it was difficult to quickly activate a motor load or the like after performing switching to an isolated operation.

Abstract: An illumination lighting apparatus is configured to light a plurality of light-emitting elements connected in series to each other. The illumination lighting apparatus includes one photosensor and a detector. The one photosensor is configured to detect light emitted from the plurality of light-emitting elements. The detector is configured to perform detection of a light emission defect on the plurality of light-emitting elements based on the light detected by the one photosensor. Moreover, the detector performs the detection process when a quantity of light detected by the one photosensor decreases. The detector includes two or more switches and a processor. The two or more switches are connected in parallel to the plurality of light-emitting elements.

Abstract: An illumination lighting apparatus is configured to light a plurality of light-emitting elements connected in series to each other. The illumination lighting apparatus includes one photosensor and a detector. The one photosensor is configured to detect light emitted from the plurality of light-emitting elements. The detector is configured to perform detection of a light emission defect on the plurality of light-emitting elements based on the light detected by the one photosensor. Moreover, the detector performs the detection process when a quantity of light detected by the one photosensor decreases. The detector includes two or more switches and a processor. The two or more switches are connected in parallel to the plurality of light-emitting elements.

Abstract: An illumination lighting apparatus is configured to light a plurality of light-emitting elements connected in series to each other. The illumination lighting apparatus includes one photosensor and a detector. The one photosensor is configured to detect light emitted from the plurality of light-emitting elements. The detector is configured to perform detection of a light emission defect on the plurality of light-emitting elements based on the light detected by the one photosensor. Moreover, the detector performs the detection process at an initial stage of lighting of the plurality of light-emitting elements.

Abstract: Provided are a rubber composition which is a base of a roller main body and capable of imparting favorable flexibility to the roller main body while maintaining high abrasion resistance to form, for example, a paper feeding roller that has a favorable paper feeding performance and can be used as a paper supply roller or the like; and a paper feeding roller in which the roller main body is formed using the rubber composition. There is provided a rubber composition contains a rubber that includes 20 to 80 parts by mass of a non-oil extended EPDM having an ethylene content of 55% to 72%, and an oil extended EPDM; and 20 parts by mass or less of a filler and 2.5 parts by mass or more of a peroxide crosslinking agent per 100 parts by mass of the rubber.

Abstract: A power supply system includes a power supply circuit and an output unit. The power supply circuit generates a pulsating voltage. The output unit is to be connected to a pair of electric wires to apply the pulsating voltage to the pair of electric wires. The power supply circuit generates the pulsating voltage such that the pulsating voltage has a full-wave rectified waveform obtained by full-wave rectifying an alternating voltage as a wave alternating between a positive voltage and a negative voltage.

Abstract: In a signal transmitter, a control circuit is configured to control a discharge switch and a control switch to transmit a transmission signal for causing the value of the output voltage to be a first voltage value or a second voltage value smaller than the first voltage value for each constant period. The control circuit controls the discharge switch and the control switch such that a voltage gradient becomes a prescribed gradient in a case where the control circuit changes the value of the output voltage from the first voltage value to the second voltage value.

Abstract: A receiver circuit is configured to receive a transmission signal represented by a change in DC voltage applied across power supply lines according to transmission data. The receiver circuit is also configured to compare the DC voltage (sampled value(s) of a detection voltage) with a threshold, thereby detecting a change in the DC voltage. The receiver circuit is further configured to calculate the threshold from a voltage value of the DC voltage (the sampled value(s) of a detection voltage) input to a receiver input unit.

Abstract: A sensor device according to an example of the embodiment is connected, on an input side rather than an illumination apparatus, to a main power source line of an illumination system to which a DC voltage is applied and to which the illumination apparatus is connected through a branch wire. The sensor device includes: a sensing unit that detects an object and outputs a detection signal; and a switch that is provided in the main power source line and connects or disconnects the main power source line by an on-off operation on the input side rather than the illumination apparatus. The switch is controlled to be turned on or off based on the detection signal of the sensing unit.

Abstract: A paper feed roller of the present invention comprises a roller body 2 integrally formed of elastic material in a cylindrical shape in which a plurality of protruding lines 6 are disposed on a peripheral surface 5 at even intervals, wherein the roller body 2 is formed so that crest portions 6a and trough portions 6b are continuously provided in a circumferential direction, an opening angle ? is equal to or more than 2° and is equal to or less than 8°, a radial height h of the protruding line is equal to or more than 0.051 mm and is equal to or less than 0.1 mm, and a curvature radius r1 at a shoulder is equal to or more than 0.55 mm.

Abstract: In a conventional power supply system, it was difficult to quickly activate a motor load or the like after performing switching to an isolated operation.

Abstract: A power supply system includes a power supply circuit and an output unit. The power supply circuit generates a pulsating voltage. The output unit is to be connected to a pair of electric wires to apply the pulsating voltage to the pair of electric wires. The power supply circuit generates the pulsating voltage such that the pulsating voltage has a full-wave rectified waveform obtained by full-wave rectifying an alternating voltage as a wave alternating between a positive voltage and a negative voltage.

Abstract: The ballast system includes constant current circuits, the power supply circuit, signal paths, a control circuit and pull-up circuits. A junction point of resistors in each of the pull-up circuits is connected to a corresponding signal path of the signal paths.

Abstract: A signal transmitting device includes an input unit, an output unit, and a step-down circuit. The input unit is configured to receive an input voltage. The output unit is configured to output an output voltage. The step-down circuit is configured to controllably adjust the output voltage by stepping down the input voltage. The step-down circuit includes first and second capacitors, a switch circuit, an inductor, first and second diodes, and a control circuit. The switch circuit includes a series circuit of first and second switches. The control circuit is configured to control the first and second switches to change a voltage value of the output voltage in order to transmit transmission data from the output unit.

Abstract: A sensor device according to an example of the embodiment is connected, on an input side rather than an illumination apparatus, to a main power source line of an illumination system to which a DC voltage is applied and to which the illumination apparatus is connected through a branch wire. The sensor device includes: a sensing unit that detects an object and outputs a detection signal; and a switch that is provided in the main power source line and connects or disconnects the main power source line by an on-off operation on the input side rather than the illumination apparatus. The switch is controlled to be turned on or off based on the detection signal of the sensing unit.

Abstract: The invention provides a paper feed roller capable of reducing abnormal noise caused by a knurled shape while maintaining characteristics thereof, including maintaining friction coefficient and coping with paper powder. The paper feed roller comprises a roller body formed of elastic material in a cylindrical shape and is characterized in that the roller body has protruding lines and recessed grooves inclinedly extending relative to an axis of the roller body so that convex and concave portions having predetermined widths are alternatively formed in a circumferential direction of a peripheral surface, and the protruding lines have one-end side protruding line portions extending from a central part in an axial direction of the roller body toward one end thereof and other-end side protruding line portions extending from the central part in the axial direction toward the other end, and they are inclined relative to the axis in opposite directions.

Abstract: A signal transmitter includes a power supply, an external signal receiver and a communication controller. The external signal receiver is configured to receive an external instruction signal that represents a lighting state of the light fixture based on an output of a sensor configured to detect a state of a lighting space illuminated by the light fixture. The communication controller is configured to change an output voltage level of the power supply to transmit, to the light fixture, a transmission signal for setting the light fixture to the lighting state represented by at least the external instruction signal.

Abstract: A receiver circuit is configured to receive a transmission signal represented by a change in DC voltage applied across power supply lines according to transmission data. The receiver circuit is also configured to compare the DC voltage (sampled value(s) of a detection voltage) with a threshold, thereby detecting a change in the DC voltage. The receiver circuit is further configured to calculate the threshold from a voltage value of the DC voltage (the sampled value(s) of a detection voltage) input to a receiver input unit.

Abstract: The signal transmitting device includes: a transmitter-side input for receiving a first DC voltage; a transmitter-side output for outputting a second DC voltage; and a voltage conversion circuit configured to convert the first DC voltage into the second DC voltage. Further, the signal transmitting device includes a control circuit configured to control the voltage conversion circuit so that the second DC voltage has a voltage value (selected from a first voltage value and a second voltage value) which changes according to transmission data in a predetermined transmission period.

Abstract: A power supply includes an input for receiving a first DC voltage, an output for outputting a second DC voltage, a voltage conversion circuit configured to convert the first DC voltage into the second DC voltage, and a control circuit configured to control the voltage conversion circuit to vary a voltage value of the second DC voltage. The control circuit is configured to control the voltage conversion circuit so as to decrease the voltage value of the second DC voltage from a first voltage value to a second voltage value for a predetermined duration every time a predetermined period elapses. The first voltage value is equal to or greater than a voltage value necessary to keep lighting a light source. The second voltage value is smaller than the voltage value necessary to keep lighting the light source.