CN210986515U

CN210986515U - Alternating current L ED light source with low-frequency flash

Info

Publication number: CN210986515U
Application number: CN201922039783.5U
Authority: CN
Inventors: 蒋金凤
Original assignee: Shenzhen Huaxin Weitian Photoelectric Co ltd
Current assignee: Shenzhen Huaxin Weitian Photoelectric Co ltd
Priority date: 2019-11-23
Filing date: 2019-11-23
Publication date: 2020-07-10
Anticipated expiration: 2029-11-23

Abstract

The utility model discloses an alternating current L ED light source of low frequency flash, including switch module, L ED light source module, rectifier module, voltage detection module, a control module, rectifier module is connected with voltage detection module, voltage detection module is connected with control module, control module is connected with switch module, switch module and L ED light source module are connected, L ED light source module is connected in rectifier module and voltage detection module simultaneously, wherein L ED light source module includes emitting diode, rectifier module includes full wave rectifier, voltage detection module includes photoelectric coupler, switch module is including setting up the switch that is used for the cut-off circuit at emitting diode wherein one end, control module includes little the control unit, analog-to-digital converter, the utility model discloses a simple structure effectively reduces alternating current L ED light source and takes place stroboscopic phenomenon, the cost of manufacture is low, be fit for wideling popularize.

Description

Alternating current L ED light source with low-frequency flash

Technical Field

The utility model belongs to the technical field of the power technique and specifically relates to an alternating current L ED light source of low frequency flash is related to.

Background

The L ED light source is a light emitting diode, and adopts a solid semiconductor chip as a luminescent material, compared with the traditional lamp, the L ED lamp is energy-saving and environment-friendly, and has good color rendering property and response speed.

In the prior art, a conventional L ED light source is generally powered by a switching converter SMPS (switching mode power supply: hereinafter referred to as "SMPS"), but the SMPS has the problems of low durability and short service life, is large in size, is complex to use and is limited in space, so that an AC L ED directly driven by alternating current is provided, an AC L ED is made of a plurality of L EDs and is applied with high voltage, complex electronic components and circuits are removed, the manufacturing cost of the whole lamp is reduced, but the constant current scheme of the circuit of the AC L ED after the electronic components are removed has unreliability, and an AC L ED on the existing market has the problems of serious stroboscopic and high total harmonic distortion.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an alternating current L ED light source of low frequency flash for among the solution prior art, removing the unreliability that has of the circuit constant current scheme of AC L ED behind the electronic components, AC L ED on the existing market has the stroboscopic, the high problem of total harmonic distortion degree.

According to an aspect of the utility model provides a low stroboscopic alternating current L ED light source, including switch module, L ED light source module, rectifier module, voltage detection module, control module, rectifier module is connected with voltage detection module, and voltage detection module is connected with control module, and control module is connected with switch module, and switch module is connected with L ED light source module, and L ED light source module connects simultaneously in rectifier module and voltage detection module, wherein L ED light source module includes emitting diode, rectifier module includes full wave rectifier, voltage detection module includes optoelectronic coupler, switch module is including setting up the switch that is used for the cutting off circuit at emitting diode wherein one end, control module includes microcontrol unit, analog to digital converter.

Optionally, the light emitting diode includes: red light emitting diodes, green light emitting diodes, and blue light emitting diodes.

Optionally, the switch comprises: the LED lamp comprises a red LED switch, a green LED switch and a blue LED switch, wherein the red LED switch, the green LED switch and the blue LED switch are respectively connected with LEDs with corresponding colors.

Optionally, the analog-to-digital converter is a 12-bit analog-to-digital converter.

Optionally, the L ED light source module includes a light-transmissive housing for protecting the LEDs.

The embodiment of the utility model provides an in, compare beneficial effect with prior art and be unreliable removing having of the circuit constant current scheme of AC L ED behind electronic components, AC L ED on the existing market has the stroboscopic, the high problem of total harmonic distortion degree, and this low-frequency flashing's alternating current L ED light source carries out full wave rectification to alternating current power supply through zero crossing based on, realizes effectively reducing AC L ED light source and takes place stroboscopic phenomenon, and the cost of manufacture is low, is fit for wideling popularize.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic diagram of an alternative low-flash alternating current L ED light source module according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of an alternative low-flash alternating current L ED light source decomposition module according to an embodiment of the present invention.

The reference numbers indicate a switch module 1, an L ED light source module 2, a rectifier module 3, a voltage detection module 4 and a control module 5.

Detailed Description

In order to make the person skilled in the art better understand the present invention, the following description will be made in conjunction with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In this embodiment, as shown in fig. 1-2, a low-frequency-flashing alternating current L ED light source includes a switch module 1, a L ED light source module 2, a rectification module 3, a voltage detection module 4, and a control module 5, where the rectification module 3 is connected to the voltage detection module 4, the voltage detection module 4 is connected to the control module 5, the control module 5 is connected to the switch module 1, the switch module 1 is connected to the L ED light source module 2, and the L ED light source module 2 is connected to the rectification module 1 and the voltage detection module 4 at the same time, where the L ED light source module 2 includes a light emitting diode, the rectification module 3 includes a full-wave rectifier, the voltage detection module 4 includes a photocoupler, the switch module 1 includes a switch arranged at one end of the light emitting diode and used for cutting off a circuit, and the control module includes a micro control unit and an analog-.

Further, the light emitting diode includes: red light emitting diodes, green light emitting diodes, and blue light emitting diodes.

Further, the switch includes: the LED lamp comprises a red LED switch, a green LED switch and a blue LED switch, wherein the red LED switch, the green LED switch and the blue LED switch are respectively connected with LEDs with corresponding colors.

Further, the analog-to-digital converter is a 12-bit analog-to-digital converter.

Further, the L ED light source module includes a light-transmissive housing for protecting the light emitting diodes.

The utility model discloses when in actual use, rectifier module 3 receives the alternating current and carries out full wave rectification, L ED light source module 2 receives the electric current of following rectifier module 3 output, when the electric current flows into light source module 2, emitting diode is lighted and is sent out light, voltage detection module 4 is used for real-time detection and applys the voltage value on L ED light source module 2, switch module 1's switch sets up emitting diode's in L ED light source module 2 one of them end, a current for putting through or cutting off the circuit, based on the voltage value that detects from voltage detection module 4, when voltage value risees and reduces, control module 5 control switch module 1 opens and closes, each full wave rectification cycle switch module switch-on and turn-off four times, analog-to-digital converter in the control module 5 detects the zero crossing, and calculate on-time and pulse width, control switch module 1 switches.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The alternating current L ED light source with low frequency flash is characterized by comprising a switch module, a L ED light source module, a rectification module, a voltage detection module and a control module, wherein the rectification module is connected with the voltage detection module, the voltage detection module is connected with the control module, the control module is connected with the switch module, the switch module is connected with a L ED light source module, the L ED light source module is simultaneously connected with the rectification module and the voltage detection module, the L ED light source module comprises a light emitting diode, the rectification module comprises a full-wave rectifier, the voltage detection module comprises a photoelectric coupler, the switch module comprises a switch which is arranged at one end of the light emitting diode and used for cutting off a circuit, and the control module comprises a micro control unit and an analog-to-digital converter.

2. A low-flicker alternating current L ED light source as set forth in claim 1, wherein the LEDs comprise red, green and blue LEDs.

3. A low-flicker alternating current L ED light source as set forth in claim 2, wherein the switches comprise a red LED switch, a green LED switch and a blue LED switch, and the red LED switch, the green LED switch and the blue LED switch are respectively connected with the LEDs of corresponding colors.

4. A low-flicker alternating current L ED light source as claimed in claim 1, wherein the analog-to-digital converter is a 12-bit analog-to-digital converter.

5. The low-flicker alternating current L ED light source of claim 1, wherein the L ED light source module comprises a light-transmissive housing for protecting the LEDs.