Constant-current power supply capable of simulating full-spectrum output

Abstract

The utility model discloses a constant-current power supply capable of simulating full-spectrum output, which comprises a main power supply module, a main control module, a first constant-current driving module, a second constant-current driving module, a third constant-current driving module, a fourth constant-current driving module, a fifth constant-current driving module and at least two different dimming signal modules, the LED lamp is provided with an LED + pin, an LED-pin, an LED G-pin, an LED B-pin, an LED C-pin and an LED W-pin; the dimming signal module is connected with the main control module and is used for receiving a dimming signal; by means of the circuit, five-path constant current output can be achieved to be compatible with various types of LED lamps, control over color, brightness, color temperature and the like is simplified, therefore, a full spectrum is simulated, meanwhile, multiple dimming signal sources are provided, the dimming requirements of different users are met, and very good practicability is achieved.

Description

Technical Field

[0001] This utility model relates to the field of driving power supplies, and in particular to a constant current power supply that can simulate full spectrum output. Background Technology

[0002] With the application and development of LED light sources, there are various LED chips on the market, including monochrome, warm white, RGB, RGBW, and RGBCW. Compared with other LED chips, RGBCW LED chips can achieve richer color effects, meet the needs of different occasions and atmospheres, and better simulate natural light, making them more suitable for lighting scenarios. However, existing RGBCW lamp driver power supplies have the disadvantage of a relatively single dimming signal source, which cannot meet the increasingly diverse dimming needs of users. Therefore, there is an urgent need for a constant current power supply that can simulate full-spectrum output to solve the above problems. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a constant current power supply capable of simulating full-spectrum output.

[0004] The technical solution adopted by one embodiment of this utility model to solve its technical problem is: a constant current power supply that can simulate full spectrum output, including a main power supply module and a main control module, a first constant current drive module, a second constant current drive module, a third constant current drive module, a fourth constant current drive module, a fifth constant current drive module and at least two different dimming signal modules connected to the main power supply module; the LED lamp is provided with LED+ pin, LEDR- pin, LEDG- pin, LEDB- pin, LEDC- pin and LEDW- pin;

[0005] The main power module is connected to an external power source;

[0006] The main control module is connected to the main power supply module;

[0007] The first constant current drive module is connected to the main control module, LED+ pin and LEDR- pin; the second constant current drive module is connected to the main control module, LED+ pin and LEDG- pin; the third constant current drive module is connected to the main control module, LED+ pin and LEDB- pin; the fourth constant current drive module is connected to the main control module, LED+ pin and LEDC- pin; and the fifth constant current drive module is connected to the main control module, LED+ pin and LEDW- pin.

[0008] The dimming signal module is connected to the main control module and is used to receive dimming signals.

[0009] In one preferred embodiment of this utility model, the first constant current drive module includes a constant current drive chip U2, an inductor L2, a diode D3, resistors R17, resistors R28-R30, resistor R32, resistor R34, capacitors C14, capacitors C16-C19, and capacitors C21-C22. The PWM pin of the constant current drive chip U2 is connected to one end of resistor R29, one end of resistor R34, and one end of capacitor C22, respectively. The other end of resistor R29 is connected to the main control module. The VDD pin of the constant current drive chip U2 is connected to one end of resistor R28 and one end of capacitor C21, respectively. The other end of resistor R28 is connected to the main power supply module. The CS pin of the constant current drive chip U2 is connected to the resistor R30... One end is connected to one end of resistor R32. The D pin of constant current drive chip U2 is connected to the anode of diode D3 and one end of inductor L2. The cathode of diode D3 is connected to the LED+ pin, one end of capacitor C16, one end of resistor R17, one end of capacitor C14, and one end of capacitor C18. The other end of inductor L2 is connected to the LEDR- pin, the other end of resistor R17, the other end of capacitor C14, the other end of capacitor C18, and one end of capacitor C19. The other ends of capacitor C19, capacitor C16, resistor R30, resistor R32, capacitor C21, resistor R34, and capacitor C22 are connected to the AGND terminal.

[0010] As one of the preferred embodiments of this utility model, a constant current power supply capable of simulating full-spectrum output further includes a power supply module connected to the main power supply module, the first constant current drive module, the second constant current drive module, the third constant current drive module, the fourth constant current drive module, and the fifth constant current drive module.

[0011] As a preferred embodiment of this utility model, the power supply module includes a voltage regulator chip U4, a diode D10, capacitors C29, C31, C33, C43, and C46. The anode of diode D10 is connected to the main power supply module, and the cathode of diode D10 is connected to one end of capacitor C46 and the IN pin of voltage regulator chip U4. The OUT pin of voltage regulator chip U4 is connected to one end of capacitor C29, one end of capacitor C31, one end of capacitor C33, one end of capacitor C43, the first constant current drive module, the second constant current drive module, the third constant current drive module, the fourth constant current drive module, and the fifth constant current drive module. The other ends of capacitors C29, C31, C33, C43, and C46, ​​as well as the GND pin and AGND pin of voltage regulator chip U4, are connected.

[0012] As one of the preferred embodiments of this utility model, a constant current power supply capable of simulating full-spectrum output further includes a sampling module connected to the main control module, LED+ pin, LEDR- pin, LEDG- pin, LEDB- pin, LEDC- pin, and LEDW- pin respectively.

[0013] In one preferred embodiment of this utility model, the sampling module includes resistors R3, R7, R18-R19, R22-R23, R25-R26, R35, R38, and R42. One end of resistor R3 is connected to the LED+ pin, and the other end of resistor R3 is connected to one end of resistor R23 and the main control module. One end of resistor R7 is connected to the LEDR- pin, and the other end of resistor R7 is connected to one end of resistor R25 and the main control module. One end of resistor R14 is connected to the LEDG- pin, and the other end of resistor R14 is connected to one end of resistor R26 and the main control module. The circuit is as follows: one end of resistor R18 is connected to the LEDB pin, and the other end of resistor R18 is connected to one end of resistor R35 and the main control module. One end of resistor R19 is connected to the LEDC pin, and the other end of resistor R19 is connected to one end of resistor R38 and the main control module. One end of resistor R22 is connected to the LEDW pin, and the other end of resistor R22 is connected to one end of resistor R42 and the main control module. The other ends of resistors R23, R25, R26, R35, R38, and R42 are connected to the AGND terminal.

[0014] As one of the preferred embodiments of this utility model, a constant current power supply capable of simulating full-spectrum output also includes an auxiliary power supply module connected to the main power supply module and the main control module respectively.

[0015] In one of the preferred embodiments of this utility model, the dimming signal module is configured as a Bluetooth module, a DALI module, and / or an NFC module.

[0016] The beneficial effects of this utility model are as follows: A constant current power supply capable of simulating full-spectrum output includes a main power supply module, a main control module, a first constant current drive module, a second constant current drive module, a third constant current drive module, a fourth constant current drive module, a fifth constant current drive module, and at least two different dimming signal modules. The LED lamps are equipped with LED+ pin, LEDR- pin, LEDG- pin, LEDB- pin, LEDC- pin, and LEDW- pin. The dimming signal modules are connected to the main control module and are used to receive dimming signals. Through the above circuit, five constant current outputs can be achieved to be compatible with various types of LED lamps, simplifying the control of color, brightness, color temperature, etc., thereby simulating the full spectrum. It also provides multiple dimming signal sources to meet the dimming needs of different users, demonstrating excellent practicality. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a block diagram of a constant current power supply that can simulate full-spectrum output.

[0019] Figure 2 The circuit schematic of the main power supply module;

[0020] Figure 3 The circuit schematic of the main control module;

[0021] Figure 4 A circuit schematic diagram of one embodiment of a dimming signal module;

[0022] Figure 5 This is the circuit schematic of the constant current drive module;

[0023] Figure 6 The circuit schematic for the auxiliary power supply module;

[0024] Figure 7 This is the circuit schematic of the power supply module;

[0025] Figure 8 This is the circuit schematic of the sampling module. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] In this utility model, unless otherwise explicitly defined, the terms "setting," "installing," and "connecting" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Reference Figures 1 to 8 A constant current power supply capable of simulating full-spectrum output includes a main power module 10 and a main control module 20, a first constant current drive module 31, a second constant current drive module 32, a third constant current drive module 33, a fourth constant current drive module 34, a fifth constant current drive module 35 and at least two different dimming signal modules 40 connected to the main power module 10. The LED lamp is provided with LED+ pin, LEDR- pin, LEDG- pin, LEDB- pin, LEDC- pin and LEDW- pin.

[0031] The main power module 10 is connected to an external power source;

[0032] The main control module 20 is connected to the main power supply module 10;

[0033] The first constant current drive module 31 is connected to the main control module 20, LED+ pin and LEDR- pin; the second constant current drive module 32 is connected to the main control module 20, LED+ pin and LEDG- pin; the third constant current drive module 33 is connected to the main control module 20, LED+ pin and LEDB- pin; the fourth constant current drive module 34 is connected to the main control module 20, LED+ pin and LEDC- pin; and the fifth constant current drive module 35 is connected to the main control module 20, LED+ pin and LEDW- pin.

[0034] The dimming signal module 40 is connected to the main control module 20 and is used to receive dimming signals.

[0035] In this invention, by setting up 5 sets of constant current drive modules, it can be compatible with all LED lamps currently on the market, such as monochrome, warm white, RGB, RGBW, RGBCW, etc. In some embodiments, when connecting RGB lamps, it is only necessary to connect the LED+ and LEDR- pins of the RGB lamps to the first constant current drive module 31, connect the LED+ and LEDR- pins to the second constant current drive module 32, and connect the LED+ and LEDB- pins to the third constant current drive module 33. The main control module 20 outputs the corresponding PWM to the first constant current drive module 31, the second constant current drive module 32, and the third constant current drive module 33 according to the dimming signal received by the dimming signal module 40, and finally realizes the control of the state of the RGB lamps.

[0036] In other embodiments, when connecting RGBW lamps, it is only necessary to connect the LED+ and LEDR- pins of the RGBW lamps to the first constant current driving module 31, the LED+ and LEDR- pins to the second constant current driving module 32, the LED+ and LEDB- pins to the third constant current driving module 33, and the LED+ and LEDW- pins to the fifth constant current driving module 35. The main control module 20 outputs the corresponding PWM to the first constant current driving module 31, the second constant current driving module 32, the third constant current driving module 33, and the fifth constant current driving module 35 according to the dimming signal received by the dimming signal module 40, thereby ultimately realizing the control of the RGB lamp state.

[0037] In a further embodiment, when connecting an RGBCW lamp, it is only necessary to connect the LED+ and LEDR- pins of the RGBCW lamp to the first constant current driving module 31, the LED+ and LEDR- pins to the second constant current driving module 32, the LED+ and LEDB- pins to the third constant current driving module 33, the LED+ and LEDC- pins to the fourth constant current driving module 34, and the LED+ and LEDW- pins to the fifth constant current driving module 35. The main control module 20 outputs the corresponding PWM to the first constant current driving module 31, the second constant current driving module 32, the third constant current driving module 33, the fourth constant current driving module 34, and the fifth constant current driving module 35 according to the dimming signal received by the dimming signal module 40, thereby ultimately realizing the control of the RGB lamp state.

[0038] Reference Figure 5In some embodiments, the first constant current drive module 31 includes a constant current drive chip U2, an inductor L2, a diode D3, resistors R17, resistors R28-R30, resistor R32, resistor R34, capacitors C14, capacitors C16-C19, and capacitors C21-C22. The PWM pin of the constant current drive chip U2 is connected to one end of resistor R29, one end of resistor R34, and one end of capacitor C22, respectively. The other end of resistor R29 is connected to the main control module 20. The VDD pin of the constant current drive chip U2 is connected to one end of resistor R28 and one end of capacitor C21, respectively. The other end of resistor R28 is connected to the main power supply module 10. The CS pin of the constant current drive chip U2 is connected to one end of resistor R30, respectively. One end of the constant current drive chip U2 is connected to the LED+ pin and one end of the resistor R32. The D pin of the constant current drive chip U2 is connected to the anode of the diode D3 and one end of the inductor L2. The cathode of the diode D3 is connected to the LED+ pin, one end of the capacitor C16, one end of the resistor R17, one end of the capacitor C14, and one end of the capacitor C18. The other end of the inductor L2 is connected to the LEDR- pin, the other end of the resistor R17, the other end of the capacitor C14, the other end of the capacitor C18, and one end of the capacitor C19. The other ends of the capacitors C19, C16, R30, R32, C21, R34, and C22 are connected to the AGND pin.

[0039] Specifically, the LED lamp is controlled by outputting a constant current through the constant current driver chip U2. The constant current driver chip U2 processes the PWM signal sent from the main control module 20 and then outputs the corresponding current to drive the LED lamp. It should be noted that the second constant current driver module 32, the third constant current driver module 33, the fourth constant current driver module 34 and the fifth constant current driver module 35 can use the same circuit as the first constant current driver module 31. This will not be described in detail here and should not be considered as a limitation of this utility model.

[0040] Reference Figure 7In some embodiments, a constant current power supply capable of simulating full-spectrum output further includes a power supply module 50 connected to the main power supply module 10, the first constant current drive module 31, the second constant current drive module 32, the third constant current drive module 33, the fourth constant current drive module 34, and the fifth constant current drive module 35, respectively. As a preferred embodiment of the power supply module 50, the power supply module 50 includes a voltage regulator chip U4, a diode D10, capacitors C29, C31, C33, C43, and C46. The anode of diode D10 is connected to the main power supply module 10, the cathode of diode D10 is connected to one end of capacitor C46 and the IN pin of voltage regulator chip U4, and the OUT pin of voltage regulator chip U4 is connected to capacitor C29 and C46, ​​respectively. One end of capacitor C29, one end of capacitor C31, one end of capacitor C33, one end of capacitor C43, the first constant current drive module 31, the second constant current drive module 32, the third constant current drive module 33, the fourth constant current drive module 34, and the fifth constant current drive module 35 are connected. The other ends of capacitor C29, capacitor C31, capacitor C33, capacitor C43, and capacitor C46, ​​as well as the GND pin and AGND pin of voltage regulator chip U4, are connected. The power supply module 50 provides a stable voltage to each constant current drive module. Among them, capacitors C29, C31, C33, C43, and C46 play a filtering role, which can provide a voltage with less interference and less ripple.

[0041] Reference Figure 8In some embodiments, a constant current power supply capable of simulating full-spectrum output further includes a sampling module 60 connected to the main control module 20, LED+ pin, LEDR- pin, LEDG- pin, LEDB- pin, LEDC- pin, and LEDW- pin, respectively. As a preferred embodiment of the sampling module 60, the sampling module 60 includes resistors R3, R7, R18-R19, R22-R23, R25-R26, R35, R38, and R42. One end of resistor R3 is connected to the LED+ pin, and the other end of resistor R3 is connected to one end of resistor R23 and the main control module 20. One end of resistor R7 is connected to the LEDR- pin, and the other end of resistor R7 is connected to one end of resistor R25 and the main control module 20. One end of resistor R14 is connected to the LEDG- pin, and the other end of resistor R14 is connected to... One end of resistor R26 is connected to the main control module 20; one end of resistor R18 is connected to the LEDB pin; the other end of resistor R18 is connected to one end of resistor R35 and the main control module 20; one end of resistor R19 is connected to the LEDC pin; the other end of resistor R19 is connected to one end of resistor R38 and the main control module 20; one end of resistor R22 is connected to the LEDW pin; the other end of resistor R22 is connected to one end of resistor R42 and the main control module 20; the other ends of resistors R23, R25, R26, R35, R38, and R42 are connected to the AGND terminal. The sampling module 60 samples the electrical signal output to the LED lamp and feeds it back to the main control module 20. The main control module 20 adjusts the output according to the feedback electrical signal.

[0042] Reference Figure 6 In some embodiments, a constant current power supply capable of simulating full-spectrum output further includes an auxiliary power supply module 70 connected to the main power supply module 10 and the main control module 20, respectively.

[0043] Reference Figure 4 In a preferred embodiment of the dimming signal module 40, the dimming signal module 40 is configured as a DAL I module. Of course, the dimming signal module 40 can also be a Bluetooth module, an NFC module, a 0-10V module, etc.

[0044] The advantages of this invention are: the circuit described above can achieve 5 constant current outputs to be compatible with various types of LED lamps, simplifying the control of color, brightness, color temperature, etc., thereby simulating the full spectrum. At the same time, it has multiple dimming signal sources to meet the dimming needs of different users, and has very good practicality.

[0045] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications and substitutions are included within the scope defined by the claims of this application.

Claims

1. A constant current power supply capable of simulating full-spectrum output, characterized in that: The system includes a main power module (10), a main control module (20) connected to the main power module (10), a first constant current drive module (31), a second constant current drive module (32), a third constant current drive module (33), a fourth constant current drive module (34), a fifth constant current drive module (35), and at least two different dimming signal modules (40). The LED lamp is equipped with LED+ pin, LEDR- pin, LEDG- pin, LEDB- pin, LEDC- pin, and LEDW- pin. The main power module (10) is connected to an external power source; The main control module (20) is connected to the main power supply module (10); The first constant current driving module (31) is connected to the main control module (20), LED+ pin and LEDR- pin; the second constant current driving module (32) is connected to the main control module (20), LED+ pin and LEDG- pin; the third constant current driving module (33) is connected to the main control module (20), LED+ pin and LEDB- pin; the fourth constant current driving module (34) is connected to the main control module (20), LED+ pin and LEDC- pin; and the fifth constant current driving module (35) is connected to the main control module (20), LED+ pin and LEDW- pin. The dimming signal module (40) is connected to the main control module (20) and is used to receive dimming signals.

2. The constant current power supply capable of simulating full-spectrum output according to claim 1, characterized in that: The first constant current drive module (31) includes a constant current drive chip U2, an inductor L2, a diode D3, resistors R17, R28-R30, R32, R34, capacitors C14, C16-C19, and C21-C22. The PWM pin of the constant current drive chip U2 is connected to one end of resistor R29, one end of resistor R34, and one end of capacitor C22, respectively. The other end of resistor R29 is connected to the main control module (20). The VDD pin of the constant current drive chip U2 is connected to one end of resistor R28 and one end of capacitor C21, respectively. The other end of resistor R28 is connected to the main power supply module (10). The CS pin of the constant current drive chip U2 is connected to resistor R30, R28, R30, R34, and C22, respectively. One end of the circuit is connected to one end of the resistor R32. The D pin of the constant current drive chip U2 is connected to the anode of the diode D3 and one end of the inductor L2. The cathode of the diode D3 is connected to the LED+ pin, one end of the capacitor C16, one end of the resistor R17, one end of the capacitor C14, and one end of the capacitor C18. The other end of the inductor L2 is connected to the LEDR- pin, the other end of the resistor R17, the other end of the capacitor C14, the other end of the capacitor C18, and one end of the capacitor C19. The other ends of the capacitors C19, C16, R30, R32, C21, R34, and C22 are connected to the AGND terminal.

3. The constant current power supply capable of simulating full-spectrum output according to claim 1, characterized in that: It also includes a power supply module (50) that is connected to the main power supply module (10), the first constant current drive module (31), the second constant current drive module (32), the third constant current drive module (33), the fourth constant current drive module (34), and the fifth constant current drive module (35), respectively.

4. A constant current power supply capable of simulating full-spectrum output according to claim 3, characterized in that: The power supply module (50) includes a voltage regulator chip U4, a diode D10, a capacitor C29, a capacitor C31, a capacitor C33, a capacitor C43, and a capacitor C46. The anode of the diode D10 is connected to the main power supply module (10). The cathode of the diode D10 is connected to one end of the capacitor C46 and the IN pin of the voltage regulator chip U4. The OUT pin of the voltage regulator chip U4 is connected to one end of the capacitor C29, one end of the capacitor C31, one end of the capacitor C33, one end of the capacitor C43, the first constant current drive module (31), the second constant current drive module (32), the third constant current drive module (33), the fourth constant current drive module (34), and the fifth constant current drive module (35). The other ends of the capacitors C29, C31, C33, C43, and C46, ​​as well as the GND pin and AGND pin of the voltage regulator chip U4, are connected.

5. A constant current power supply capable of simulating full-spectrum output according to claim 1, characterized in that: It also includes a sampling module (60) that is connected to the main control module (20), LED+ pin, LEDR- pin, LEDG- pin, LEDB- pin, LEDC- pin and LEDW- pin respectively.

6. A constant current power supply capable of simulating full-spectrum output according to claim 5, characterized in that: The sampling module (60) includes resistors R3, R7, R18-R19, R22-R23, R25-R26, R35, R38, and R42. One end of resistor R3 is connected to the LED+ pin, and the other end of resistor R3 is connected to one end of resistor R23 and the main control module (20). One end of resistor R7 is connected to the LEDR- pin, and the other end of resistor R7 is connected to one end of resistor R25 and the main control module (20). One end of resistor R14 is connected to the LEDG- pin, and the other end of resistor R14 is connected to one end of resistor R26 and the main control module (20). One end of resistor R18 is connected to the LEDB pin, and the other end of resistor R18 is connected to one end of resistor R35 and the main control module (20). One end of resistor R19 is connected to the LEDC pin, and the other end of resistor R19 is connected to one end of resistor R38 and the main control module (20). One end of resistor R22 is connected to the LEDW pin, and the other end of resistor R22 is connected to one end of resistor R42 and the main control module (20). The other ends of resistors R23, R25, R26, R35, R38, and R42 are connected to the AGND pin.

7. A constant current power supply capable of simulating full-spectrum output according to claim 1, characterized in that: It also includes an auxiliary power module (70) that is connected to the main power module (10) and the main control module (20) respectively.

8. A constant current power supply capable of simulating full-spectrum output according to claim 1, characterized in that: The dimming signal module (40) is configured as a Bluetooth module, a DAL I module, and / or an NFC module.

Images