公开(公告)号：US20190104583A1

公开(公告)日：2019-04-04

申请号：US16139010

申请日：2018-09-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hirofumi KONISHI ,  Kenichi FUKUDA ,  Masashi MOTOMURA ,  Kiyoshi OGASAWARA

IPC: H05B33/08

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.

公开(公告)号：US20180184500A1

公开(公告)日：2018-06-28

申请号：US15852973

申请日：2017-12-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hirofumi KONISHI ,  Masashi MOTOMURA

IPC: H05B33/08 ,  H05B37/02

CPC classification number: H05B33/0872 ,  H05B33/0815 ,  H05B37/0227 ,  H05B37/0281 ,  Y02B20/44

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.

公开(公告)号：US20170223790A1

公开(公告)日：2017-08-03

申请号：US15406848

申请日：2017-01-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masashi MOTOMURA ,  Hirofumi KONISHI ,  Kenichi FUKUDA

IPC: H05B33/08

CPC classification number: H05B33/0815 ,  H05B33/0884

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.

公开(公告)号：US20190098717A1

公开(公告)日：2019-03-28

申请号：US16138987

申请日：2018-09-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kenichi FUKUDA ,  Hirofumi KONISHI ,  Masashi MOTOMURA

IPC: H05B33/08 ,  H05B37/02

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.

公开(公告)号：US20170223791A1

公开(公告)日：2017-08-03

申请号：US15416076

申请日：2017-01-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kenichi FUKUDA ,  Hirofumi KONISHI ,  Masashi MOTOMURA

IPC: H05B33/08 ,  F21V23/06 ,  F21V21/005 ,  F21V3/00 ,  H05B37/02 ,  F21S8/04

CPC classification number: H05B33/0815 ,  F21S8/04 ,  F21V3/00 ,  F21V21/005 ,  F21V23/06 ,  F21Y2115/10 ,  H05B33/0845 ,  H05B33/0863 ,  H05B37/0263 ,  H05B37/0272 ,  Y02B20/346

Abstract: A control circuit is configured to, when switching a state of a light source from an extinguished state to a lighting state, control a voltage conversion circuit so that a second DC voltage has a voltage value which changes according to transmission data containing an activation command. A lighting device is configured to keep the state of the light source at the extinguished state until receiving the activation command from the receiver circuit, and to change the state of the light source to the lighting state when receiving the activation command from the receiver circuit.

公开(公告)号：US20190306952A1

公开(公告)日：2019-10-03

申请号：US16358270

申请日：2019-03-19

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masashi MOTOMURA ,  Hirofumi KONISHI ,  Kenichi FUKUDA

IPC: H05B37/02 ,  H05B33/08 ,  G05F1/10

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.

公开(公告)号：US20180035501A1

公开(公告)日：2018-02-01

申请号：US15660509

申请日：2017-07-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masashi MOTOMURA ,  Hirofumi KONISHI

IPC: H05B33/08 ,  H02M1/42 ,  H05B37/02

CPC classification number: H05B33/0815 ,  H02M1/42 ,  H05B33/0848 ,  H05B37/0263 ,  H05B37/0272

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.

公开(公告)号：US20180035504A1

公开(公告)日：2018-02-01

申请号：US15637449

申请日：2017-06-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hirofumi KONISHI ,  Masashi MOTOMURA

IPC: H05B33/08 ,  H05B37/02

CPC classification number: H05B33/0845 ,  H05B33/0815 ,  H05B33/0884 ,  H05B37/0209 ,  H05B37/0263 ,  H05B37/0272

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.

公开(公告)号：US20170318634A1

公开(公告)日：2017-11-02

申请号：US15494604

申请日：2017-04-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masashi MOTOMURA ,  Hirofumi KONISHI ,  Kenichi FUKUDA

IPC: H05B33/08 ,  H02M7/04 ,  F21V23/06 ,  F21V21/34 ,  F21V3/00 ,  F21S8/04 ,  H05B37/02 ,  H02M3/158 ,  F21Y2115/10

CPC classification number: H05B33/0815 ,  F21S8/046 ,  F21V3/00 ,  F21V21/34 ,  F21V23/06 ,  F21Y2115/10 ,  H02M3/158 ,  H02M3/1588 ,  H02M7/04 ,  H02M2001/0048 ,  H05B33/0845 ,  H05B37/02

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.

公开(公告)号：US20170188421A1

公开(公告)日：2017-06-29

申请号：US15373324

申请日：2016-12-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masashi MOTOMURA ,  Hirofumi KONISHI ,  Kenichi FUKUDA

IPC: H05B33/08 ,  H05B37/02

CPC classification number: H05B33/0815 ,  H05B33/0845 ,  H05B37/0272

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.