公开(公告)号：US20200137846A1

公开(公告)日：2020-04-30

申请号：US16659378

申请日：2019-10-21

Applicant: Eaton Intelligent Power Limited

Inventor： Raymond George Janik ,  Russell Trask

IPC: H05B33/08

Abstract: A lighting fixture includes a voltage source circuit and a first light module comprising a first current source circuit and a first light emitting diode (LED) light source. The lighting fixture further includes a second light module that includes a second current source circuit and a second LED light source. The voltage source circuit is configured to provide a voltage source output voltage to the first current source circuit and to the second current source circuit. The first current source circuit is configured to provide a first current to the first LED light source. The second current source circuit is configured to provide a second current to the second LED light source. A voltage level of the voltage source output voltage depends on a waveform of a line dimmer output voltage that is provided to the voltage source circuit.

公开(公告)号：US20200130574A1

公开(公告)日：2020-04-30

申请号：US16667988

申请日：2019-10-30

Applicant: VALEO VISION BELGIQUE

Inventor： Yves DUBOIS ,  Alexandre FRANC ,  Arthur Guillaume RENAUDEAU

IPC: B60Q3/80 ,  H05B33/08 ,  B60Q1/44 ,  B60Q3/30 ,  B60Q1/26

Abstract: A device for managing at least two light functions accommodated in a same motor vehicle light device, the managing device comprising a block of light sources for each light function, wherein the managing device further comprises: an input block configured to: provide a power supply common to the at least two light functions; indicate if the at least two light functions are activated or deactivated; a bias block configured to supply a stabilized reference voltage common to the at least two light functions; a switching block for each light function, one switching block of which is configured to deactivate one of the at least two light functions that is defined as secondary with respect to the other of the at least two light functions that is defined as having priority if the latter is activated.

公开(公告)号：US20200128643A1

公开(公告)日：2020-04-23

申请号：US16656316

申请日：2019-10-17

Applicant: SILICON WORKS CO., LTD.

Inventor： Hai Feng Jin ,  Ju Hyun Lee ,  Dong Hyeon Kim ,  Sung Gon Kim ,  Ho Jeong Jin ,  Chang Sik Shin ,  Ju Pyo Hong

IPC: H05B37/02 ,  H05B33/08

Abstract: The present disclosure discloses a vehicle lamp control apparatus. The vehicle lamp control apparatus includes a timing generator configured to detect a setting voltage, which is varied, and measure a time in which the setting voltage reaches levels of a first reference voltage and a second reference voltage to generate a first delay time and a second delay time, and a lamp control circuit configured to control sequential turn-on of light-emitting diode (LED) channels using the first delay time and the second delay time.

公开(公告)号：US20200120769A1

公开(公告)日：2020-04-16

申请号：US16234531

申请日：2018-12-27

Applicant: Power Forest Technology Corporation

Inventor： Yang-Tai Tseng

IPC: H05B33/08 ,  H02M1/08

Abstract: A light emitting diode driving device and a light emitting diode backlight module are provided. A current is provided to a filter circuit by a controllable current source controlled by a dimming signal, so that the filter circuit generates a corresponding dimming voltage to control current flowing through a LED unit to dim the LED unit.

公开(公告)号：US20200107415A1

公开(公告)日：2020-04-02

申请号：US16458541

申请日：2019-07-01

Applicant: New Energies & Alternative Technologies, Inc.

Inventor： Issac Ananda Barbosa

IPC: H05B33/08 ,  H02J7/00

Abstract: In some implementations, a device includes terminals to couple with a battery arranged to supply power to the device. The device includes a first winding and a second winding that are arranged to be inductively coupled. The device includes a transistor. The first winding and the second winding are coupled to the positive terminal with opposite polarity. The device includes a light emitting diode (LED). The device is arranged to couple the LED being coupled in parallel with the second winding. The LED is arranged to be reverse biased with respect to the battery.

公开(公告)号：US10609780B2

公开(公告)日：2020-03-31

申请号：US16525664

申请日：2019-07-30

Applicant: California Eastern Laboratories, Inc.

Inventor： Aren M. Thompson ,  Erik J. Davidson ,  David Parrett ,  David E. Wilde

IPC: H05B33/08 ,  H05B37/02

Abstract: An apparatus and method for retrofitting a wired luminaire to wireless control. The method includes coupling a sensor and the luminaire to the controller by wire and further includes controlling a separate memory device, a radio, a relay for switching power to a luminaire, a zero to ten-volt luminaire control output, and a hardware switch with a single microcontroller.

公开(公告)号：US10609774B2

公开(公告)日：2020-03-31

申请号：US15748997

申请日：2016-07-01

Applicant: KOITO MANUFACTURING CO., LTD.

Inventor： Toshiyuki Tsuchiya ,  Takao Muramatsu ,  Takeshi Toda

IPC: H05B33/08 ,  B60Q1/04 ,  B60Q1/34 ,  B60Q1/00 ,  B60R16/03 ,  B60Q1/30

Abstract: A lighting circuit includes a voltage converter configured to receive a DC voltage to perform voltage conversion and supply a drive current to a light source unit including a light emitting element, a bypass switch configured to form a bypass path through which the drive current bypasses the light emitting element, and a controller configured to control the voltage converter and the bypass switch. The light source unit includes a plurality of light emitting elements connected in series. The bypass path includes at least one bypass switch which are connected in parallel with at least one of the light emitting elements. When turning on the light emitting element of the light source unit, the controller controls the voltage conversion to start in a state where the bypass switch is turned on, and then, turns off the bypass switch to turn on the light emitting element.

公开(公告)号：US10607985B2

公开(公告)日：2020-03-31

申请号：US15587177

申请日：2017-05-04

Applicant: Renesas Electronics Corporation

Inventor： Akira Uemura ,  Akihiro Nakahara

IPC: H05B33/08 ,  H01L27/06 ,  H03K17/14 ,  B60R16/03 ,  H01L29/78 ,  H05B37/02 ,  H05B39/04 ,  H01L29/423

Abstract: A semiconductor integrated power device including: an output transistor configured to drive an external load element; a temperature detection circuit configured to: output a first detection signal in reference to a temperature difference between a temperature of the output transistor and an ambient temperature; and output a second detection signal in reference to a temperature difference between a temperature of the output transistor and a first reference temperature; and a current limiter circuit configured to limit a current flowing through the output transistor according to the first detection signal and the second detection signal. The temperature detection circuit activates and inactivates the first detection signal or the second detection signal based on an output of a first hysteresis circuit.

公开(公告)号：US10605422B2

公开(公告)日：2020-03-31

申请号：US15651508

申请日：2017-07-17

Applicant: OSRAM OLED GmbH

Inventor： Ulrich Kastner-Jung ,  Markus Klein ,  Stan Maes ,  Romana Sigl ,  Annette Haid ,  Stephan Lintner ,  Julian Herget ,  Gregor Matjan

IPC: F21S10/02 ,  F21V23/04 ,  F21V33/00 ,  G04C19/02 ,  G04G11/00 ,  G04G13/02 ,  H05B33/08 ,  H05B33/22 ,  H05B37/00 ,  H05B37/02 ,  B60Q3/74 ,  B60Q3/30 ,  B60Q1/26 ,  B60Q7/00 ,  B05B1/18 ,  F24D19/06 ,  F21S8/00 ,  F21S8/04 ,  F21S8/06 ,  F21S9/03 ,  F21Y105/00 ,  F21Y115/15 ,  F21Y113/10 ,  F21Y113/20 ,  H01L51/50

Abstract: An organic light-emitting diode comprising an organic layer sequence, a radiation exit area and an encapsulation. The organic layer sequence comprises at least one radiation-emitting region which generates electromagnetic radiation in the spectral range from infrared radiation to UV radiation during operation. The radiation exit area is structured, so that the electromagnetic radiation has a directional emission profile. The encapsulation forms a seal of the organic layer sequence against environmental influences.

公开(公告)号：US20200100341A1

公开(公告)日：2020-03-26

申请号：US16577999

申请日：2019-09-20

Applicant: Eaton Intelligent Power Limited

Inventor： Raymond George Janik ,  Christopher Lee Bohler

IPC: H05B33/08

Abstract: A lighting device includes a light source that emits an illumination light, where the light source includes first one or more of LEDs to emit a green light, second one or more of LEDs to emit an amber light, third one or more of LEDs to emit a red light, and fourth one or more of LEDs to emit a deep red light. The illumination light includes at least the green light, the amber light, the red light, and the deep red light. The lighting device further includes a controller configured to control a current provided to the light source.