Simple MOS circuit silicon controlled rectifier light and color modulation DOB module

Abstract

The utility model relates to a simple MOS circuit silicon controlled rectifier light and color modulation DOB module, which comprises a PCB module board and an external silicon controlled rectifier light modulator, the PCB module board is connected with a constant current circuit, a stroboscopic processing circuit, a bleeder circuit, a light and color modulation circuit, a balance circuit, an LED warm light source and an LED cold light source in sequence, the silicon controlled rectifier light modulator is electrically connected with the light and color modulation circuit, and the silicon controlled rectifier light modulator is electrically connected with the light and color modulation circuit. The constant current circuit, the stroboscopic processing circuit, the bleeder circuit, the dimming and color adjusting circuit and the balance circuit are all arranged in the middle of the PCB module board, and the LED warm light source and the LED cold light source are arranged on the periphery of the PCB module board in a surrounding mode. According to the utility model, the light source and the power supply driving circuit are integrated on the PCB module board to form the integrated DOB module, and the DOB module can be used only by being fixed on the shell of the lamp during installation, so that the installation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of LED lighting, in particular to a simple MOS circuit thyristor dimming and color adjustment DOB module. Background Art

[0002] With the continuous development of lighting technology and the improvement of people's quality of life, the demand for lighting equipment is no longer just satisfied with basic lighting functions, but is developing towards a more intelligent, efficient and convenient direction. By flexibly adjusting the brightness and color temperature of the light source, different atmospheres and effects can be created to meet people's lighting needs in different occasions and moods.

[0003] Most of the current LED lamps use LED driver power supplies to achieve dimming and color adjustment to meet different lighting needs. Traditional LED driver power supplies and light panels are installed separately, which not only increases the complexity of installation, but also increases costs and difficulty in maintenance.

[0004] Therefore, there is an urgent need to provide a simple MOS circuit thyristor dimming and color adjustment DOB module to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings and defects of the prior art and provide a simple MOS circuit thyristor dimming and color adjustment DOB module, which integrates the light source and the power drive circuit on a PCB module board to form an integrated DOB module. During installation, the DOB module only needs to be fixed on the housing of the lamp, which is convenient to install.

[0006] The purpose of this utility model is achieved through the following technical solutions:

[0007] A simple MOS circuit thyristor dimming and color adjustment DOB module comprises a PCB module board and an external thyristor dimmer, wherein a constant current circuit, a stroboscopic processing circuit, a discharge circuit, a dimming and color adjustment circuit, a balancing circuit, an LED warm light source and an LED cold light source are sequentially connected to the PCB module board, the thyristor dimmer is electrically connected to the dimming and color adjustment circuit, the constant current circuit, the stroboscopic processing circuit, the discharge circuit, the dimming and color adjustment circuit and the balancing circuit are all arranged in the middle of the PCB module board, and the LED warm light source and the LED cold light source are arranged around the periphery of the PCB module board.

[0008] As a preferred technical solution of the utility model, the stroboscopic processing circuit includes a stroboscopic processing circuit A and a stroboscopic processing circuit B, the discharge circuit includes a discharge circuit A and a discharge circuit B, the dimming and color adjustment circuit includes a dimming and color adjustment circuit A and a dimming and color adjustment circuit B, the balancing circuit includes a balancing circuit A and a balancing circuit B, and the balancing circuit A and the balancing circuit B are used to detect the level of the input voltage and switch the working states of the LED warm light source and the cold light source to series or parallel according to the level of the voltage.

[0009] As an optimal technical solution of the utility model, the PCB module board is also welded with a mains input interface, an input protection circuit, an input surge anti-interference circuit and a rectifier circuit in sequence. The power supply is connected to the DOB module from the mains input interface, and the output end of the rectifier circuit is connected to the constant current circuit.

[0010] As a preferred technical solution of the utility model, the LED warm light source includes LED warm light beads W1-Wn, and the LED cold light source includes LED cold light beads L1-Ln. The LED warm light beads are beads with a color temperature of any range from 1800K to 5000K, and the LED cold light beads are beads with a color temperature of any range from 2700K to 10000K.

[0011] As a preferred technical solution of the utility model, the constant current circuit is a linear constant current IC containing thyristor dimming, and a plurality of the linear constant current ICs are provided.

[0012] As a preferred technical solution of the utility model, a mounting hole is provided on the lamp, and the DOB module is locked and connected to the lamp by the cooperation of the mounting hole and screws.

[0013] As a preferred technical solution of the utility model, a wire threading hole is provided on the lamp, and the L / N end cable of the mains power is connected to the mains power access port through the wire threading hole.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model drives and adjusts the brightness and color temperature of the LED warm light source and the LED cold light source by setting a constant current circuit, a strobe processing circuit, a discharge circuit, a dimming and color adjustment circuit, and a balancing circuit on the PCB module board, and then controls the thyristor dimmer to achieve continuous adjustment of the light brightness and color temperature of the lamp, thereby meeting the lighting needs in different scenes. The utility model integrates the light source and the power drive circuit on the PCB module board to form an integrated DOB module. When installing, you only need to fix the DOB module on the housing of the lamp, which is convenient to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a structural schematic diagram of the utility model.

[0017] Figure 2 This is a schematic diagram of the electronic components of the utility model being located on a PCB module board.

[0018] Figure 3 This is a schematic diagram of the LED light source of the utility model being located on a PCB module board.

[0019] The above drawings include the following reference numerals:

[0020] 1. PCB module board, 2. AC input interface, 3. Input protection circuit, 4. Input surge anti-interference circuit, 5. Rectification circuit, 6. Constant current circuit, 7. Strobe processing circuit A, 8. Discharge circuit A, 9. Dimming and color adjustment circuit A, 10. Balance circuit A, 11. Strobe processing circuit B, 12. Discharge circuit B, 13. Balance circuit B, 14. Dimming and color adjustment circuit B, 15. LED warm light beads, 16. LED cold light beads, 17. Mounting hole, 18. Threading hole, 19. Lamps. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0022] The specific implementation process of the utility model is as follows:

[0023] like Figures 1 to 3 As shown, a simple MOS circuit thyristor dimming and color adjustment DOB module includes a PCB module board 1 and an external thyristor dimmer. The PCB module board 1 is sequentially connected with a constant current circuit 6, a strobe processing circuit, a discharge circuit, a dimming and color adjustment circuit, a balancing circuit, an LED warm light source and an LED cold light source. The thyristor dimmer is electrically connected to the dimming and color adjustment circuit. The constant current circuit 6, the strobe processing circuit, the discharge circuit, the dimming and color adjustment circuit and the balancing circuit are all arranged in the middle of the PCB module board 1, and the LED warm light source and the LED cold light source are arranged around the periphery of the PCB module board 1.

[0024] In an embodiment of the utility model, two groups are provided for the stroboscopic processing circuit, the discharge circuit, the dimming and color adjustment circuit, and the balancing circuit. The stroboscopic processing circuit includes a stroboscopic processing circuit A7 and a stroboscopic processing circuit B11. The discharge circuit includes a discharge circuit A8 and a discharge circuit B12. The dimming and color adjustment circuit includes a dimming and color adjustment circuit A9 and a dimming and color adjustment circuit B14. The balancing circuit includes a balancing circuit A10 and a balancing circuit B13. The balancing circuit A10 and the balancing circuit B13 are used to detect the level of the input voltage, and switch the working states of the LED warm light source and the cold light source to series or parallel according to the level of the voltage.

[0025] In an embodiment of the utility model, a mains input interface 2, an input protection circuit 3, an input surge anti-interference circuit 4 and a rectifier circuit 5 are welded in sequence on the PCB module board 1. The power supply is connected to the DOB module from the mains input interface 2, and the output end of the rectifier circuit 5 is connected to the constant current circuit 6.

[0026] Specifically, the PCB module board 1 is welded and connected in sequence with the mains input interface 2, the input protection circuit 3, the input surge anti-interference circuit 4, the rectification circuit 5, the constant current circuit 6, the strobe processing circuit A7, the discharge circuit A8, the dimming and color adjustment circuit A9, the balancing circuit A10, the strobe processing circuit B11, the discharge circuit B12, the balancing circuit B13, and the dimming and color adjustment circuit B14. The power supply is connected from the mains input interface 2, and the input surge anti-interference circuit 4 is used to prevent the entire circuit system from being damaged by the surge voltage of the external power grid; the rectifier circuit 5 is used to rectify the AC power into DC power; the constant current circuit 6 is used to control the current to maintain the stable operation of the LED warm light source and the cold light source, and control the input power; the strobe processing circuit A7 and the strobe processing circuit B11 are used to filter out the AC ripple for the entire DOB module, and after processing, they can be used in some occasions that require no flicker; the discharge circuit A8 and the discharge circuit B12 are used when the lamp 19 is powered off or turned off, and by forming a fast discharge loop, the large capacitor that may exist in the circuit is quickly discharged, thereby ensuring the safety of the product and preventing users from being electrocuted due to residual charge; the thyristor adjustment The optical device is used to receive external control signals and convert them into electrical signals to the dimming and color adjustment circuit A9 and the dimming and color adjustment circuit B14; the dimming and color adjustment circuit A9 and the dimming and color adjustment circuit B14 are used to receive the voltage signal after chopped, and control the DOB module to dim and color adjust in the sunset mode according to the voltage signal; the input voltage is detected by the balancing circuit A10 and the balancing circuit B13, and when the input voltage is high, the LED warm light source and the LED cold light source are connected in series, and when the input voltage is low, the LED warm light source and the LED cold light source are connected in parallel; the above circuit realizes the dimming and color adjustment of the LED warm light source and the LED cold light source, so that the user can flexibly adjust the lighting effect of the DOB module according to the needs to meet different lighting needs. The DOB module has a high power factor, low harmonic current, no flicker, and meets various certification requirements.

[0027] In the embodiment of the utility model, the LED warm light source includes LED warm light beads 15W1-Wn, and the LED cold light source includes LED cold light beads 16L1-Ln. The LED warm light beads 15 are any color temperature beads of 1800K-5000K, and the LED cold light beads 16 are any color temperature beads of 2700K-10000K. The number of LED warm light beads 15 and LED cold light beads 16 is not fixed, and can be set to W1-Wn and L1-Ln according to actual needs.

[0028] In the embodiment of the utility model, the constant current circuit 6 is a linear constant current IC with thyristor dimming, which can accurately control the output current by adjusting the reference control input power. When a higher power is needed, it can be achieved by increasing the number of linear constant current ICs to increase the power of the DOB module.

[0029] In the embodiment of the utility model, a mounting hole 17 is provided on the lamp 19 , and the DOB module is fixed and locked on the lamp 19 through the cooperation between the mounting hole 17 and the screw.

[0030] In the embodiment of the utility model, a threading hole 18 is provided on the lamp 19, and the L / N end cable of the mains is connected to the mains access port through the threading hole 18 to supply power to the DOB module. The position of the threading hole 18 can be set according to actual conditions, and can be set close to the mains access port to facilitate installation and wiring, and maintain the compactness of the overall structure.

[0031] The dimming and color adjustment working principle of the utility model is: the L / N terminal is connected to 120V or 220V or other power supply, the power supply is chopped by the thyristor dimmer, then passes through the input protection circuit 3 and the input surge anti-interference circuit 4, and finally rectified by the rectifier circuit 5 to obtain pulsating direct current, and after the constant power is constant by the constant current circuit 6, it is supplied to the LED warm light source and the LED cold light source. Because the voltage of the LED cold light source is always about 10V higher than that of the LED warm light source, the LED warm light source will light up before the LED cold light source. When the thyristor dimmer is adjusted from the low end to the highest end, the base of the MOS tube in the dimming and color adjustment circuit obtains a voltage divided by the voltage-limiting resistor. When the input voltage reaches the minimum working voltage of the LED warm light source, and the voltage of the control extreme of the reference voltage source in the dimming and color adjustment circuit is lower than the reference voltage source Vref, the MOS tube is turned on, current flows, and the LED warm light source begins to emit dim light. As the thyristor dimmer continues to adjust, the power of the entire lamp slowly increases, and the color temperature gradually increases at the same time. When the minimum operating voltage of the LED cold light source is reached, the LED cold light source begins to light up. When the voltage at the control extreme of the reference voltage source is adjusted to 2.5V, the MOS tube is cut off, and the LED warm light source is off, and only the LED cold light source is on. When the thyristor dimmer is adjusted to the maximum range, the brightness of the entire lamp is the highest, the power is the highest, and the color temperature also reaches the highest value. When the thyristor dimmer is adjusted from the maximum to the minimum, the brightness gradually dims. When the voltage at the control extreme of the reference voltage source is adjusted to be lower than 2.5V, the LED warm light source is on. When the thyristor dimmer is continued to be adjusted, and the voltage of the LED cold light source is adjusted to be lower than the operating voltage, the cold light lamp is off, and only the warm light lamp is on. When the thyristor dimmer is adjusted to the lowest end, the minimum power, chromaticity, and color temperature are maintained at the setting.

[0032] The above-mentioned embodiments only express the implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A simple MOS circuit thyristor dimming and color adjustment DOB module, characterized in that: It includes a PCB module board and an external thyristor dimmer, and the PCB module board is sequentially connected with a constant current circuit, a stroboscopic processing circuit, a discharge circuit, a dimming and color adjustment circuit, a balancing circuit, an LED warm light source and an LED cold light source, and the thyristor dimmer is electrically connected to the dimming and color adjustment circuit. The constant current circuit, the stroboscopic processing circuit, the discharge circuit, the dimming and color adjustment circuit, and the balancing circuit are all arranged in the middle of the PCB module board, and the LED warm light source and the LED cold light source are arranged around the periphery of the PCB module board.

2. A simple MOS circuit thyristor dimming and color adjustment DOB module according to claim 1, characterized in that: The stroboscopic processing circuit includes a stroboscopic processing circuit A and a stroboscopic processing circuit B, the discharge circuit includes a discharge circuit A and a discharge circuit B, the dimming and color adjustment circuit includes a dimming and color adjustment circuit A and a dimming and color adjustment circuit B, the balancing circuit includes a balancing circuit A and a balancing circuit B, and the balancing circuit A and the balancing circuit B are used to detect the level of the input voltage and switch the working states of the LED warm light source and the cold light source to series or parallel according to the level of the voltage.

3. The simple MOS circuit thyristor dimming and color adjustment DOB module according to claim 1, characterized in that: The PCB module board is also welded with a mains input interface, an input protection circuit, an input surge anti-interference circuit and a rectifier circuit in sequence. The power supply is connected to the DOB module from the mains input interface, and the output end of the rectifier circuit is connected to the constant current circuit.

4. The simple MOS circuit thyristor dimming and color adjustment DOB module according to claim 1, characterized in that: The LED warm light source includes LED warm light beads W1-Wn, and the LED cold light source includes LED cold light beads L1-Ln. The LED warm light beads are lamp beads with a color temperature of any range from 1800K to 5000K, and the LED cold light beads are lamp beads with a color temperature of any range from 2700K to 10000K.

5. The simple MOS circuit thyristor dimming and color adjustment DOB module according to claim 2, characterized in that: The constant current circuit is a linear constant current IC with thyristor dimming, and a plurality of the linear constant current ICs are provided.

6. The simple MOS circuit thyristor dimming and color adjustment DOB module according to claim 1, characterized in that: The DOB module is arranged on the lamp, a mounting hole is provided on the lamp, and the DOB module is locked and connected to the lamp by the cooperation of the mounting hole and the screw.

7. The simple MOS circuit thyristor dimming and color adjustment DOB module according to claim 1, characterized in that: A threading hole is provided on the lamp, and the L / N end cable of the mains power is connected to the mains power access port through the threading hole.

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