AN ELECTRICAL CIRCUIT COMPRISING A GALVANIC ISOLATION BETWEEN A HIGH VOLTAGE, HV, CIRCUIT PART AND A LOW VOLTAGE, LV, CIRCUIT PART AND HAVING AN INCREASED CREEPAGE DISTANCE

    公开(公告)号:WO2022228940A1

    公开(公告)日:2022-11-03

    申请号:PCT/EP2022/060278

    申请日:2022-04-19

    Inventor: ACKERMANN, Bernd

    Abstract: An electrical circuit having a galvanic isolation between a High Voltage, HV, circuit part and a Low Voltage, LV, circuit part, wherein said electrical circuit comprises a substrate providing said HV and said LV circuit part, an electrical component for providing said galvanic isolation, said component provided on said substrate and having a primary side connected, with a first primary terminal, to said HV circuit part and a secondary side connected, with a first secondary terminal, to said LV circuit part such that a creepage distance is provided over said substrate between said first primary terminal and said first secondary terminal, a conductive trace provided on said substrate, connected with a first end to a Low Frequency, LF, voltage node in said HV circuit part, wherein a frequency of a voltage potential at said LF voltage node is lower than a frequency of a voltage potential at said first primary terminal, and said conductive trace provided in between said first primary terminal and said first secondary terminal thereby increasing said creepage distance between said first primary terminal and said first secondary terminal.

    ELECTRONIC CIRCUIT WITH ISOLATION
    3.
    发明申请

    公开(公告)号:WO2021244960A1

    公开(公告)日:2021-12-09

    申请号:PCT/EP2021/064310

    申请日:2021-05-28

    Abstract: A circuit comprises a first printed circuit board (60) carrying a first set of components and a second printed circuit board (62) carrying a second set of components, with a clearance (64) between the first and second printed circuit boards. A transformer (66) has a primary side connected to the first set of components and a secondary side connected to the second set of components. One of the transformer windings, and its connection to a respective set of components, comprises a triple insulated wire. A glass, ceramic or mica spacer (70) mounted to the first and second printed circuit boards defines and sets the clearance (64) between the first and second printed circuit boards. The clearance requirement is met by providing separate printed circuit boards with spacing between them and the use of a triple insulated wire addresses or overcomes issues of creepage. Thus, high frequency and high voltage operation on the first printed circuit board is possible.

    METHOD AND SYSTEM FOR SETTING A DRIVING CURRENT OF LUMINAIRES

    公开(公告)号:WO2021244916A1

    公开(公告)日:2021-12-09

    申请号:PCT/EP2021/064032

    申请日:2021-05-26

    Abstract: The invention relates to an incorporation of a current limiting/regulating circuit on a luminaire board for ensuring that the luminaire board will automatically operate at its desired current after a replacement. Since the current control at the luminaire board causes an initial mismatch between the current supply of the driver and the demand of the luminaire board, the driver output voltage will drift towards the maximum output voltage of the driver. When the maximum output voltage is reached, the driver is configured to operate in constant-voltage (CV) mode, sense the output current and reduce its output current to the same value as consumed by current-controlled luminaire board. Alternatively, the driver may gradually reduce the setpoint of the output current until it just leaves the CV mode and stay at that setpoint. In this way, the driver will automatically operate at the correct current of a newly installed luminaire board without any action from the user.

    ELECTRICAL LOAD GROUPING
    5.
    发明申请

    公开(公告)号:WO2020260198A1

    公开(公告)日:2020-12-30

    申请号:PCT/EP2020/067346

    申请日:2020-06-22

    Abstract: The invention is directed to electrical load grouping based on measurements of an electrical parameter at electrical load sensors (120A, 120B). An electrical load grouping device (110) is configured for receiving a changed value of the electrical parameter from one or more of the electrical load sensors (120A, 120B) in reaction to a changed power consumption of a respective electrical load (132A,...,134C). The electrical load grouping device (110) is further configured for assigning the respective electrical load (132A,..., 134C) to a group (130A, 130B) of electrical loads associated to an electrical load sensor (120A, 120B) or groups of electrical loads associated to electrical load sensors based on which electrical load sensor (120A, 120B) or which electrical load sensors measured the changed value of the electrical parameter received in reaction to the changed power consumption of the respective electrical load (132A,..., 134C).

    LIGHTING DEVICE WITH BATTERY HOUSING
    8.
    发明申请

    公开(公告)号:WO2019162214A1

    公开(公告)日:2019-08-29

    申请号:PCT/EP2019/053924

    申请日:2019-02-18

    Abstract: The invention relates to a lighting device (100) comprising a lighting unit (102), at least one application unit (104), and a battery housing (106) comprising a first battery compartment (108) with a first electrical contact set (110) for accommodating and connecting a first battery and with a second battery compartment (112) with a second electrical contact set (114) for accommodating and connecting a second battery, wherein the first and second battery compartments are configured to force an exclusive spatial accommodation of only one of the first and second batteries in the battery housing at a given point in time. The lighting unit is electrically connected to the first electrical contact set for being powered by the first battery in a first operational mode and the application unit is electrically connected to the second electrical contact set for being powered by the second battery in a second operational mode.

    A RETROFIT LIGHT EMITTING DIODE, LED, LIGHTING DEVICE WITH REDUCED POWER CONSUMPTION IN STANDBY MODE

    公开(公告)号:WO2019149950A1

    公开(公告)日:2019-08-08

    申请号:PCT/EP2019/052693

    申请日:2019-02-05

    Abstract: A retrofit Light Emitting Diode, LED, lighting device for connection to an electronic ballast, wherein said retrofit LED lighting device comprising an LED array for emitting light, an alternating current, AC, LED driver arranged for receiving an AC supply voltage or an AC supply current, from said electronic ballast and for driving said LED array based on said received AC supply voltage or said AC supply current, at least one switch, wherein in a closed position of said at least one switch, said retrofit LED lighting device provides a closed loop current circuit for an electronic ballast connected to said retrofit LED lighting device and in an open position of said at least one switch, said retrofit LED lighting device provides an open loop current circuit for an electronic ballast connected to said retrofit LED lighting device thereby simulating an absence of said LED lighting device to said electronic ballast, an auxiliary power supply and a stand-alone external trigger circuit, connected to said auxiliary power supply, and only dedicated for receiving an external trigger and for controlling said at least one switch based on said received external trigger.

    LAMP OR LUMINAIRE COMPRISING A LED MODULE
    10.
    发明申请

    公开(公告)号:WO2021249883A1

    公开(公告)日:2021-12-16

    申请号:PCT/EP2021/064984

    申请日:2021-06-04

    Abstract: The invention provides a light generating system (1000) comprising a LED module (100), a module support (200), and a connector element (300), wherein: the module support (200) comprises a first module support opening (230) for hosting at least part of a first connector element part (310); the LED module (100) comprises a LED support (120) and a plurality of LEDs (10) functionally coupled to the LED support (120), wherein the LED support (120) comprises a LED support opening (130) for hosting at least part of the first connector element part (310); and wherein the plurality of LEDs (10) are configured to generate light source light (11); the connector element (300) comprises the first connector element part (310), and wherein the first connector element part (310) comprises a first spring part (315); at least part of the first connector element part (310) penetrates through the first module support opening (230); and the LED support opening (130), the first connector element part (310), and the module support (200) are chosen such that in a functional coupling of the LED module (100) and the module support (200), at least part of the first connector element part (310) penetrates through the LED support opening (130), and the first spring part (315) exerts a force on the LED module (100) against the module support (200).

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