Abstract: A driver arrangement for a light emitting arrangement. The driver arrangement comprises two driver circuits. The power output by each driver circuit is controlled by a respective control loop. A control system comprises a single manual switch device that is switchable between multiple switch positions. Switching between different positions simultaneously changes which, if any, of one or more setting components form part of each control loop. Changing which setting component(s) forms part of a control loop changes or controls the power output by a respective driver circuit.

Abstract: A retrofit tubular lamp having a single switch device configured to selectively connect a first end and a second end of an input interface together. When the two ends are connected, a converter is bypassed whilst supplying power to a light emitting arrangement of the lamp. When the two ends are disconnected, power is provided to the light emitting arrangement via the converter. The single switch device is further configured so that, when disconnecting the two ends from one another, a creepage distance between the two ends is equal to or greater than a predetermined safety distance (i.e. a safety creepage is created).

Abstract: A retrofit tubular lamp having a single switch device configured to selectively connect a first end and a second end of an input interface together. When the two ends are connected, a converter is bypassed whilst supplying power to a light emitting arrangement of the lamp. When the two ends are disconnected, power is provided to the light emitting arrangement via the converter. The single switch device is further configured so that, when disconnecting the two ends from one another, a creepage distance between the two ends is equal to or greater than a predetermined safety distance (i.e. a safety creepage is created).

Abstract: A driver arrangement for a light emitting arrangement. The driver arrangement comprises two driver circuits. The power output by each driver circuit is controlled by a respective control loop. A control system comprises a single manual switch device that is switchable between multiple switch positions. Switching between different positions simultaneously changes which, if any, of one or more setting components form part of each control loop. Changing which setting component(s) forms part of a control loop changes or controls the power output by a respective driver circuit.

Abstract: A rectifying arrangement for an LED driver comprising a rectifying circuit and a clamping arrangement provides a low-impedance path between input terminals of the rectifying circuit in response to an abnormal operation of the rectifying arrangement, such as an open circuit of one rectifying branch of the rectifying arrangement. The low-impedance path is maintained for a plurality of cycles of an AC power supply provided to the rectifying circuit, and can be maintained on a (semi-)permanent basis.

Abstract: A lamp comprises an input for connection to a high frequency ballast for gas discharge lamps. A power supply unit obtains power from a LED on voltage of the LED of the lamp, and the power supply unit powers an isolation switch at the input. During a preheat stage of the ballast, the power supply unit does not close the isolation switch, but the isolation switch is closed when the high frequency ballast is in a later state, i.e. the ignition phase.

Abstract: Described herein is hydrogel composition, wherein the hydrogel is loaded with bacterial particles including a gasdermin D (GSDMD) protein cage conjugated to a surface thereof, and nanoparticles loaded with an ESCRT inhibitor. The hydrogel can be formulated as an injectable hydrogel for treatment at the site of a primary or metastatic tumor. Alternatively, the hydrogel can be formulated as a thermosensitive hydrogel for implantation at the site of an inoperable cancer.

Abstract: A rectifying arrangement for an LED driver comprising a rectifying circuit and a clamping arrangement provides a low-impedance path between input terminals of the rectifying circuit in response to an abnormal operation of the rectifying arrangement, such as an open circuit of one rectifying branch of the rectifying arrangement. The low-impedance path is maintained for a plurality of cycles of an AC power supply provided to the rectifying circuit, and can be maintained on a (semi-)permanent basis.

Abstract: A lamp comprises an input for connection to a high frequency ballast for gas discharge lamps. A power supply unit obtains power from a LED on voltage of the LED of the lamp, and the power supply unit powers an isolation switch at the input. During a preheat stage of the ballast, the power supply unit does not close the isolation switch, but the isolation switch is closed when the high frequency ballast is in a later state, i.e. the ignition phase.

Abstract: The present disclosure relates to a curved glass thermal forming device and method. The curved glass thermal forming device includes a furnace body having a feed port and a discharge port, wherein the furnace body includes a heating segment, a forming segment and a cooling segment, a rotary table capable of rotating and used for circularly conveying glass to the heating segment, the forming segment and the cooling segment in sequence is arranged in the furnace body, a plurality of female dies for carrying glass are arranged on the rotary table so as to cooperate with a male die in the forming segment to perform press fit forming on the glass.

Abstract: A circuit board arrangement assembled by at least a first and a second circuit boards, each circuit board comprising: a portion of a circuit; and a first and a second electrical terminals to be electrically connected to a respective first and a second electrical terminals of the other circuit board of the first and the second circuit boards, so as to couple the portions of the circuit of the first and the second circuit boards, wherein the first and second electrical terminals on the circuit board are coupled with each other via the portion of the circuit on the other circuit board of the first and the second circuit boards, at least one board further comprising: a voltage suppression element (TSS1, TSS2) in the board connected across the first and second electrical terminals of the board, said voltage suppression element (TSS1, TSS2) is adapted to become conductive when a voltage thereacross reaches a threshold; characterized in that the portion of the circuit comprising at least one LED, and said LED (LED1)

Abstract: A circuit board arrangement assembled by at least a first and a second circuit boards, each circuit board comprising: a portion of a circuit; and a first and a second electrical terminals to be electrically connected to a respective first and a second electrical terminals of the other circuit board of the first and the second circuit boards, so as to couple the portions of the circuit of the first and the second circuit boards, wherein the first and second electrical terminals on the circuit board are coupled with each other via the portion of the circuit on the other circuit board of the first and the second circuit boards, at least one board further comprising: a voltage suppression element (TSS1, TSS2) in the board connected across the first and second electrical terminals of the board, said voltage suppression element (TSS1, TSS2) is adapted to become conductive when a voltage thereacross reaches a threshold; characterized in that the portion of the circuit comprising at least one LED, and said LED (LED1)

Abstract: The present disclosure relates to a curved glass thermal forming device and method. The curved glass thermal forming device includes a furnace body having a feed port and a discharge port, wherein the furnace body includes a heating segment, a forming segment and a cooling segment, a rotary table capable of rotating and used for circularly conveying glass to the heating segment, the forming segment and the cooling segment in sequence is arranged in the furnace body, a plurality of female dies for carrying glass are arranged on the rotary table so as to cooperate with a male die in the forming segment to perform press fit forming on the glass.