Programmable DC-DC driver system
    1.
    发明授权

    公开(公告)号:US11575328B2

    公开(公告)日:2023-02-07

    申请号:US17173567

    申请日:2021-02-11

    Abstract: For a programmable direct current (DC)-DC converter application, a driver system includes a switched mode power circuit for providing a DC power signal to an electrical load and a control block. Control block includes interfaces coupled to receive at least one real-time input signal from a low voltage region of the switched mode power circuit and to provide at least one control signal to the low voltage region. Control block configures the switched mode power circuit to provide the DC power signal having at least one power parameter within a tolerance of a power configuration setting value of the electrical load. Control block responds to the at least one real-time input signal from the low voltage region to adjust operation of the low voltage region via the at least one control signal. Low voltage region can include a plurality of switched converter circuits.

    Programmable multi-stage driver system

    公开(公告)号:US11277005B2

    公开(公告)日:2022-03-15

    申请号:US17171301

    申请日:2021-02-09

    Abstract: A multi-stage driver system includes a switched mode power circuit for providing a direct current (DC) power signal to an electrical load and a control block. Control block includes interfaces coupled to receive at least one real-time input signal from a high voltage region or a low voltage region of the switched mode power circuit and to provide at least one control signal to the high voltage region or the low voltage region. Control block configures the switched mode power circuit to provide the DC power signal having at least one power parameter within a tolerance of a power configuration setting value of the electrical load. Control block responds to the at least one real-time input signal from the high voltage region or the low voltage region to adjust operation of the high voltage region or the low voltage region via the at least one control signal.

    NOISE REDUCING LIGHTING DEVICES
    3.
    发明申请

    公开(公告)号:US20190295519A1

    公开(公告)日:2019-09-26

    申请号:US15933523

    申请日:2018-03-23

    Abstract: Lighting devices are disclosed. One lighting device includes a housing, a light source, and a panel. The light source is mounted within the housing and configured to emit light sufficient for general illumination of an area. The panel is supported by the housing at a location to receive light from the light source at one or more light input surfaces of the panel and output the received light from the light source via a light output surface of the panel facing the area. The light propagates within material of the panel from the one or more light input surfaces to the light output surface. The light output surface of the panel comprises a noise reduction structure.

    Intelligent self-healing of electrowetting devices

    公开(公告)号:US10175470B2

    公开(公告)日:2019-01-08

    申请号:US15421896

    申请日:2017-02-01

    Inventor: Gregory Malone

    Abstract: The disclosed examples relate to methods and systems facilitate self-healing of regions of electrowetting devices. Electrowetting devices may be coupled to a switchable AC/DC electrical power supply that provides AC power to the electrowetting device to control electrowetting device operation and DC power to promote self-healing of the electrowetting device. A monitoring circuit outputs a signal in response to electrical power supply operating characteristic changes due to a failure of the electrowetting device's dielectric. The controller, responding to the signal, switches the power supply output from AC power to DC power to the electrowetting device. In response to the DC power, the electrowetting device responds by healing the degraded dielectric. When the failure is determined to be corrected, the power supply output is switched from DC power to AC power to the electrowetting device. The number of times self-healing is applied may be tracked for future analysis.

    Multi-stage driver system architecture

    公开(公告)号:US11545905B2

    公开(公告)日:2023-01-03

    申请号:US17150175

    申请日:2021-01-15

    Abstract: A multi-stage driver system includes a switched mode power circuit for providing power to different electrical load(s). Multi-stage driver system includes a control block including at least one microcontroller coupled to control operations of the switched mode power circuit. Switched mode power circuit includes a high voltage region, a low voltage region, and an isolation barrier. High voltage region of the switched mode power circuit includes a switched rectifier and a switched bridge circuit configured to produce a high voltage bidirectional pulse train signal for output to an isolation barrier. Low voltage region of the switched mode power circuit includes a rectification circuit coupled to the isolation barrier and at least one switched converter circuit coupled to the rectification circuit. Control block receives real-time input signals (e.g., analog voltage reading(s)) from the high and low voltage regions and responsively produces control signals to the high and low voltage regions.

    Noise reducing lighting devices
    8.
    发明授权

    公开(公告)号:US10770053B2

    公开(公告)日:2020-09-08

    申请号:US15933523

    申请日:2018-03-23

    Abstract: Lighting devices are disclosed. One lighting device includes a housing, a light source, and a panel. The light source is mounted within the housing and configured to emit light sufficient for general illumination of an area. The panel is supported by the housing at a location to receive light from the light source at one or more light input surfaces of the panel and output the received light from the light source via a light output surface of the panel facing the area. The light propagates within material of the panel from the one or more light input surfaces to the light output surface. The light output surface of the panel comprises a noise reduction structure.

    Active sound control in a lighting system

    公开(公告)号:US10438578B1

    公开(公告)日:2019-10-08

    申请号:US15948401

    申请日:2018-04-09

    Abstract: Disclosed herein is a lighting system including a luminaire having a lighting device and a sound reduction device. The lighting device includes an illumination output surface, which is at least partially reflective with respect to an audio wave from outside the luminaire. The lighting device also includes an illumination light source configured to generate illumination light for emission through the illumination output surface for illumination of an area. The sound reduction device includes a pick up microphone and an audio output source. The pick up microphone is configured to detect incoming audio waves in a vicinity of the luminaire. The lighting system further includes a circuitry including a sound reduction controller coupled to the pick up microphone and the audio output source of the sound reduction device. The sound reduction controller is configured to operate the audio output source to control sound at least in vicinity of the illuminated area associated with the incoming audio waves.

    CONFIGURABLE LIGHTING DEVICE INCORPORATING NOISE REDUCTION

    公开(公告)号:US20190295458A1

    公开(公告)日:2019-09-26

    申请号:US15974746

    申请日:2018-05-09

    Abstract: An example configurable lighting device includes a controllable general illumination device configured to output illumination light sufficient for general illumination of an area and a display configured to output light as a representation of an image into the area. The display is co-located with the general illumination device such that an available output region of the display towards the area at least substantially overlaps an available output region of the general illumination device towards the area. The lighting device has a light output surface configured and located such that light output from the general illumination device and light output from the display propagate out via the light output surface. The lighting device also has a noise reduction structure.

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