Dimmable drive-free LED lamp circuit

Abstract

The invention discloses a dimmable drive-free LED lamp circuit which comprises a dimming module and a light source circuit board. A driving module and a light source are integrated on the same light source circuit board, stable operating voltage is provided for an LED module through the driving module, and the light source circuit board is put at an original LED lamp placement position, so that unnecessary space design is reduced. The light source circuit board is provided with a power source input end, a conversion circuit, a protection circuit and the like, and the light source circuit boardis connected to the power grid through the power source input end, then converts alternating current of the power grid into direct current through the conversion circuit and transmits the converted direct current to the driving module, so that the driving module provides stable direct-current operating voltage for the LED lamp. The light source circuit board is further connected with the dimmingmodule, and the dimming module is capable of adjusting the power source input end so as to realize dimming of the LED lamp.

Description

technical field [0001] The invention relates to the technical field of lighting, in particular to a dimmable driver-free LED lamp circuit. Background technique [0002] Track lights, that is, lights installed on the track, can adjust the irradiation angle arbitrarily, and carry out key lighting. At present, the track lights generally used are LED track lights. Since the working voltage of LED lights is generally relatively small, the LED track lights When the light is connected to the track, it is necessary to connect a drive module to convert the grid voltage into the working voltage required by the LED lamp beads. At present, most track lights have an external power drive module, which is connected to the track light through the power drive module. To transmit electric energy with the track, the external power drive module is large in size and takes up more space, which reduces the number of track lights placed on the track, which is not suitable for some occasions that re...

AI Technical Summary

Problems solved by technology

[0002] Track lights, that is, lights installed on the track, can adjust the irradiation angle arbitrarily, and carry out key lighting. At present, the track lights generally used are LED track lights. Since the working voltage of LED lights is generally relatively small, the LED track lights When the light is connected to the track, it is necessary to connect a drive module to convert the grid voltage into the working voltage required by the LED lamp beads. At present, most track lights have an external power drive module, which is connected to the track light through the power drive module. To transmit electric energy with the track, the external power drive module is large in size and takes up more space, which reduces the number of track lights placed on the track, which is not suitable for some occasions that require more light

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