Circuit unit for lamp and lamp comprising circuit unit
A technology for circuit units and lamps, applied in the field of lighting, can solve the problems of not having the ability to change the voltage in the circuit, increasing the manufacturing cost of the circuit unit, and not having the dimming function.
Pending Publication Date: 2021-05-18
赛万特科技有限责任公司
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Problems solved by technology
However, the existing integrated light and sound lamps have defects such as: first, the circuit unit of the existing integrated lamp does not have the function of changing the voltage in the circuit, so it does not have the function of dimming; second, the existing integrated The circuit unit of the type lamp can change the voltage in the circuit and output a constant voltage to the speaker device to ensure the stability of the lamp when it is working, but this circuit unit needs to set two circuit paths for the light-emitting unit and the speaker device in parallel to Ensures a constant voltage output to the speaker device, requiring such a circuit unit to be large in size and increasing the manufacturing cost of the circuit unit
Method used
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[0028] While illustrative embodiments are described herein with respect to particular applications, it should be understood that the disclosure is not limited thereto. Those skilled in the art and having access to the teachings provided herein will recognize additional applications, modifications, and implementations within the scope of these and other fields in which the present disclosure will have significant utility.
[0029] The exemplary embodiments described herein provide several advantages over typical light fixtures. They allow, for example, dimming of luminaires with existing wall switches; for light and sound integrated luminaires, even after the current and voltage input to the luminaire are adjusted, it is possible to emit light in a simple way The unit outputs a constant current and a constant voltage to the speaker device without requiring parallel arrangement of two circuit paths for the light emitting unit and the speaker device.
[0030] figure 1 Shown is ...
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The invention discloses a circuit unit for a lamp and the lamp comprising the circuit unit, and the circuit unit for the lamp comprises: a first power supply stage, wherein the first power supply stage receives a first power supply signal from an AC power supply, performs AC-DC conversion on the first power supply signal to generate a second power supply signal, and performs dimming signal conversion on the first power supply signal to generate a first dimming signal; and a second power supply stage connected to the first power supply stage to receive a second power supply signal output from the first power supply stage, where the second power supply stage adjusts the second power supply signal based at least on the first dimming signal to generate a third power supply signal, the second power stage provides a third power signal to a light-emitting unit of the lamp to drive the light-emitting unit.
Description
technical field [0001] The present disclosure relates to the technical field of lighting, and in particular to a circuit unit for a lamp and a lamp including the circuit unit. Background technique [0002] A lamp is a common lighting tool in daily life, and it is usually installed on a position such as a ceiling to provide lighting light for the environment. In recent years, in various lighting applications, people expect to be able to adjust the brightness of the output light of the luminaire, and usually use a dimmer to adjust the power supplied to the luminaire, thereby adjusting the light output of the luminaire, for example, the dimmer's The user interface is mounted on the wall, and the user interface is equipped with a switching / adjustment mechanism such as a knob, a slider, etc., whereby the light fixture can be switched on and off and the light output of the light fixture can be adjusted. In addition, remote controllers can also be used for dimming. Specifically, w...
Claims
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IPC IPC(8): H05B47/10
CPCH04R1/028H04R2420/07H05B45/31Y02B20/40H05B45/10H04R1/025H05B45/37
Inventor 任小军肖锟陈伟虎汪范彬阿比纳夫·班得瑞
Owner 赛万特科技有限责任公司