Circuit of intelligent lamp compatible light modulator

Abstract

The utility model provides an intelligent lamp compatible dimmer circuit, which comprises a rectifier bridge circuit, a compatible dimmer circuit, an RGBCW five-path LED control circuit and a bleeder circuit, and is characterized in that the rectifier bridge circuit is simultaneously connected with the compatible dimmer circuit, the RGBCW five-path LED control circuit and the bleeder circuit; the output end of the compatible dimmer circuit is connected with the RGBCW five-path LED control circuit and the bleeder circuit at the same time. The RGBCW five-path LED control circuit is connected with the bleeder circuit; the compatible dimmer circuit is configured to detect whether a dimmer is present in the circuit to control the on and off of the bleeder circuit. A Triac dimming chip is connected to the front end of a communication intelligent product circuit, so that an intelligent product controlled by a PWM or I2C protocol can be compatible with a dimmer, and any use is not affected.

Description

Technical Field

[0001] The utility model relates to the field of lighting, in particular to a circuit of an intelligent lamp compatible with a dimmer. Background Art

[0002] The existing communication smart light circuit lacks the function of detecting dimmers. When used in scenarios where dimmers are connected, the lights may flicker because the voltage is chopped by the dimmer or there is no discharge circuit. However, many families abroad have connected dimmers to the circuit during decoration. If the circuit is not re-modified, the smart light product must be compatible with the dimmer. Utility Model Content

[0003] In order to solve the problems existing in the existing color separation lamps, the utility model provides a circuit of an intelligent lamp compatible with a dimmer.

[0004] The present application proposes a circuit for a smart lamp compatible with a dimmer, comprising: a rectifier bridge circuit, a compatible dimmer circuit, an RGBCW five-way LED control circuit and a discharge circuit, wherein the rectifier bridge circuit is connected to the compatible dimmer circuit, the RGBCW five-way LED control circuit and the discharge circuit at the same time; the output end of the compatible dimmer circuit is connected to the RGBCW five-way LED control circuit and the discharge circuit at the same time; the RGBCW five-way LED control circuit is connected to the discharge circuit; the compatible dimmer circuit is configured to detect whether there is a dimmer in the circuit so as to control the opening and closing of the discharge circuit.

[0005] By connecting the Triac dimming IC to the front end of the communication smart product circuit, the smart products controlled by PWM or I2C protocol can also be compatible with the dimmer without affecting any use.

[0006] Specifically, the compatible dimmer circuit includes: chip U1, resistor R3, resistor RS1, resistor RS2, resistor RS3, resistor R7 and resistor R8, and chip U1 includes: TRIAC, HV, CS1, CS2, VI N, DRAI N, RTH, VD and GND pins; the TRIAC pin is connected to one end of the resistor R3; the other end of the resistor R3 is simultaneously connected to the rectifier bridge circuit, one end of the resistor R7 and the discharge circuit; the CS1 pin is connected to one end of the resistor RS1; the other end of the resistor RS1 is simultaneously connected to one end of the resistor RS2, one end of the resistor RS3 and the CS2 pin; the other end of the resistor RS3 is simultaneously connected to the other end of the resistor RS2 and the GND pin; the VI N pin is connected to the other end of the resistor R7; the DRAI N pin is simultaneously connected to one end of the resistor R8 and the discharge circuit; the VD pin is connected to the other end of the resistor R8.

[0007] Specifically, the discharge circuit includes: a diode D2, a resistor R5 and a capacitor CD1; the positive electrode of the diode D2 is simultaneously connected to an end of the resistor R3 away from the chip U1, an end of the resistor R7 away from the chip U1 and the rectifier bridge circuit, and the negative electrode of the diode D2 is simultaneously connected to one end of the resistor R5 and the negative electrode of the capacitor CD1; the positive electrode of the capacitor CD1 is simultaneously connected to the other end of the resistor R5, an end of the resistor R8 away from the chip U1 and the RGBCW five-way LED control circuit.

[0008] Specifically, the RGBCW five-way LED control circuit includes: a resistor R6, a chip U2, a capacitor C4, a capacitor C5, an LED-B light-emitting diode string, an LED-R light-emitting diode string, an LED-G light-emitting diode string, an LED-G light-emitting diode string and an LED-C light-emitting diode string; one end of the resistor R6 is simultaneously connected to the cathode of the diode D2, the cathode of the capacitor CD1, the end of the resistor R5 away from the chip U1, the anode of the LED-B light-emitting diode string, the anode of the LED-R light-emitting diode string, the anode of the LED-G light-emitting diode string, the anode of the LED-G light-emitting diode string and the LED-C light-emitting diode string. The positive electrode of the diode string, the other end of the resistor R6 is connected to chip U2; one end of the capacitor C5 is connected to chip U2, and the other end of the resistor R5 is simultaneously connected to the positive electrode of capacitor CD1, the end of the resistor R5 close to chip U1, one end of the capacitor C4, chip U2 and one end of the resistor R8; the other end of the capacitor C4 is connected to chip U2; the cathode of the LED-B light-emitting diode string is connected to chip U2; the cathode of the LED-R light-emitting diode string is connected to chip U2; the cathode of the LED-G light-emitting diode string is connected to chip U2; the cathode of the LED-W light-emitting diode string is connected to chip U2; the cathode of the LED-C light-emitting diode string is connected to chip U2.

[0009] Specifically, chip U2 includes: DUT1, VI N, DATA, CLK, DUT2, DUT3, DUT4 and DUT5 pins; DUT1 pin is connected to the cathode of LED-B light emitting diode string; VI N pin is connected to the end of resistor R6 away from diode D2; DATA pin is connected to the end of capacitor C5 close to chip U2; CLK pin is connected to the end of capacitor C4 close to chip U2; DUT2 is connected to the cathode of LED-R light emitting diode string; DUT3 pin is connected to the cathode of LED-G light emitting diode string; DUT4 pin is connected to the cathode of LED-W light emitting diode string; DUT5 pin is connected to the cathode of LED-C light emitting diode string.

[0010] Through the above technical solution, chip U1 detects whether there is a dimmer through the Triac pin. When chip U1 detects that there is a dimmer, chip U1 will automatically open the discharge circuit to improve the compatibility of thyristor dimmer. When chip U1 detects that there is no dimmer, the chip will turn off the discharge current to reduce loss and improve system efficiency.

[0011] The beneficial effects of the utility model are:

[0012] Smart lighting products are compatible with dimmers, making the application scenarios of smart lights more extensive. At the same time, consumers do not have to worry about product flashing due to dimmers, nor do they have to consider re-changing home circuits, making the application more convenient and safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate the embodiments and are used together with the description to explain the principles of the present application. It will be easy to recognize other embodiments and many expected advantages of the embodiments because they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale with each other. The same reference numerals refer to corresponding similar parts.

[0014] Figure 1 is a circuit structure diagram of a circuit of a smart lamp compatible with a dimmer according to an embodiment of the present application;

[0015] Figure 2 This is the input voltage waveform of the RGBCW five-way LED control circuit when the dimmer is not connected;

[0016] Figure 3 This is the input voltage waveform of the RGBCW five-way LED control circuit when connected to the dimmer. DETAILED DESCRIPTION

[0017] In the following detailed description, reference is made to the accompanying drawings, which form a part of the detailed description and are shown by illustrative specific embodiments in which the present application can be practiced. To this end, directional terms, such as "top", "bottom", "left", "right", "up", "down", etc., are used with reference to the orientation of the figures described. Because the components of the embodiments can be positioned in several different orientations, directional terms are used for the purpose of illustration and are by no means limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present application. Therefore, the following detailed description should not be adopted in a limiting sense, and the scope of the present application is defined by the appended claims.

[0018] Figure 1 is a circuit structure diagram of a circuit of a smart lamp compatible with a dimmer according to an embodiment of the present application, such as Figure 1As shown, a circuit of a smart lamp compatible with a dimmer includes: a rectifier bridge circuit, a compatible dimmer circuit, an RGBCW five-way LED control circuit and a discharge circuit, the rectifier bridge circuit is connected to the compatible dimmer circuit, the RGBCW five-way LED control circuit and the discharge circuit at the same time; the output end of the compatible dimmer circuit is connected to the RGBCW five-way LED control circuit and the discharge circuit at the same time; the RGBCW five-way LED control circuit is connected to the discharge circuit; the compatible dimmer circuit is configured to detect whether there is a dimmer in the circuit to control the opening and closing of the discharge circuit.

[0019] By connecting the Triac dimming IC to the front end of the communication smart product circuit, the smart products controlled by PWM or I2C protocol can also be compatible with the dimmer without affecting any use.

[0020] Specifically, the compatible dimmer circuit includes: chip U1, resistor R3, resistor RS1, resistor RS2, resistor RS3, resistor R7 and resistor R8, and chip U1 includes: TRIAC, HV, CS1, CS2, VI N, DRAI N, RTH, VD and GND pins; the TRIAC pin is connected to one end of the resistor R3; the other end of the resistor R3 is simultaneously connected to the rectifier bridge circuit, one end of the resistor R7 and the discharge circuit; the CS1 pin is connected to one end of the resistor RS1; the other end of the resistor RS1 is simultaneously connected to one end of the resistor RS2, one end of the resistor RS3 and the CS2 pin; the other end of the resistor RS3 is simultaneously connected to the other end of the resistor RS2 and the GND pin; the VI N pin is connected to the other end of the resistor R7; the DRAI N pin is simultaneously connected to one end of the resistor R8 and the discharge circuit; the VD pin is connected to the other end of the resistor R8.

[0021] Specifically, the discharge circuit includes: a diode D2, a resistor R5 and a capacitor CD1; the positive electrode of the diode D2 is simultaneously connected to an end of the resistor R3 away from the chip U1, an end of the resistor R7 away from the chip U1 and the rectifier bridge circuit, and the negative electrode of the diode D2 is simultaneously connected to one end of the resistor R5 and the negative electrode of the capacitor CD1; the positive electrode of the capacitor CD1 is simultaneously connected to the other end of the resistor R5, an end of the resistor R8 away from the chip U1 and the RGBCW five-way LED control circuit.

[0022] Specifically, the RGBCW five-way LED control circuit includes: a resistor R6, a chip U2, a capacitor C4, a capacitor C5, an LED-B light-emitting diode string, an LED-R light-emitting diode string, an LED-G light-emitting diode string, an LED-G light-emitting diode string and an LED-C light-emitting diode string; one end of the resistor R6 is simultaneously connected to the cathode of the diode D2, the cathode of the capacitor CD1, the end of the resistor R5 away from the chip U1, the anode of the LED-B light-emitting diode string, the anode of the LED-R light-emitting diode string, the anode of the LED-G light-emitting diode string, the anode of the LED-G light-emitting diode string and the LED-C light-emitting diode string. The positive electrode of the diode string, the other end of the resistor R6 is connected to chip U2; one end of the capacitor C5 is connected to chip U2, and the other end of the resistor R5 is simultaneously connected to the positive electrode of capacitor CD1, the end of the resistor R5 close to chip U1, one end of the capacitor C4, chip U2 and one end of the resistor R8; the other end of the capacitor C4 is connected to chip U2; the cathode of the LED-B light-emitting diode string is connected to chip U2; the cathode of the LED-R light-emitting diode string is connected to chip U2; the cathode of the LED-G light-emitting diode string is connected to chip U2; the cathode of the LED-W light-emitting diode string is connected to chip U2; the cathode of the LED-C light-emitting diode string is connected to chip U2.

[0023] Specifically, chip U2 includes: DUT1, VIN, DATA, CLK, DUT2, DUT3, DUT4 and DUT5 pins; DUT1 pin is connected to the cathode of LED-B light-emitting diode string; VIN pin is connected to the end of resistor R6 away from diode D2; DATA pin is connected to the end of capacitor C5 close to chip U2; CLK pin is connected to the end of capacitor C4 close to chip U2; DUT2 is connected to the cathode of LED-R light-emitting diode string; DUT3 pin is connected to the cathode of LED-G light-emitting diode string; DUT4 pin is connected to the cathode of LED-W light-emitting diode string; DUT5 pin is connected to the cathode of LED-C light-emitting diode string.

[0024] Since the RGBCW five-way LED control circuit is a linear circuit, its working state changes with the input voltage. When there is a dimmer at the input front end of the RGBCW five-way LED control circuit, such as Figure 3 The input voltage waveform shown will be chopped, compared to Figure 2 It can be seen from the voltage waveform when the dimmer is not connected that connecting the dimmer will result in insufficient operating voltage supplied to chip U2, and the LED output circuit cannot be controlled, resulting in flashing lights and very low output power, and the lights become dim.

[0025] Because of the existence of the dimmer compatible circuit, the chip U1 detects whether there is a dimmer through the Triac pin. When the chip detects that there is a dimmer, the chip will automatically open the discharge circuit to improve the compatibility of the thyristor dimmer. When the chip detects that there is no dimmer, the chip will close the discharge current to reduce losses and improve system efficiency.

[0026] Obviously, those skilled in the art can make various modifications and changes to the embodiments of the present application without departing from the spirit and scope of the present application. In this way, if these modifications and changes are within the scope of the claims of the present application and their equivalents, the present application is also intended to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are recorded in mutually different dependent claims does not indicate that the combination of these measures cannot be used to profit. Any figure mark in the claims should not be considered to limit the scope.

Claims

1. A circuit for a smart lamp compatible with a dimmer, characterized in that: include: A rectifier bridge circuit, a compatible dimmer circuit, an RGBCW five-way LED control circuit and a discharge circuit, wherein the rectifier bridge circuit is simultaneously connected to the compatible dimmer circuit, the RGBCW five-way LED control circuit and the discharge circuit; the output end of the compatible dimmer circuit is simultaneously connected to the RGBCW five-way LED control circuit and the discharge circuit; the RGBCW five-way LED control circuit is connected to the discharge circuit; the compatible dimmer circuit is configured to detect whether there is a dimmer in the circuit so as to control the opening and closing of the discharge circuit.

2. The circuit of a smart lamp compatible with a dimmer according to claim 1, characterized in that: The compatible dimmer circuit includes: a chip U1, a resistor R3, a resistor RS1, a resistor RS2, a resistor RS3, a resistor R7 and a resistor R8, and the chip U1 includes: TRIAC, HV, CS1, CS2, VIN, DRAIN, RTH, VD and GND pins; the TRIAC pin is connected to one end of the resistor R3; the other end of the resistor R3 is simultaneously connected to the rectifier bridge circuit, one end of the resistor R7 and the discharge circuit; the CS1 pin is connected to one end of the resistor RS1; the other end of the resistor RS1 is simultaneously connected to one end of the resistor RS2, one end of the resistor RS3 and the CS2 pin; the other end of the resistor RS3 is simultaneously connected to the other end of the resistor RS2 and the GND pin; the VIN pin is connected to the other end of the resistor R7; the DRAIN pin is simultaneously connected to one end of the resistor R8 and the discharge circuit; the VD pin is connected to the other end of the resistor R8.

3. The circuit of a smart lamp compatible with a dimmer according to claim 2, characterized in that: The discharge circuit includes: a diode D2, a resistor R5 and a capacitor CD1; the positive electrode of the diode D2 is simultaneously connected to an end of the resistor R3 away from the chip U1, an end of the resistor R7 away from the chip U1 and the rectifier bridge circuit, and the negative electrode of the diode D2 is simultaneously connected to one end of the resistor R5 and the negative electrode of the capacitor CD1; the positive electrode of the capacitor CD1 is simultaneously connected to the other end of the resistor R5, an end of the resistor R8 away from the chip U1 and the RGBCW five-way LED control circuit.

4. The circuit of a smart lamp compatible dimmer according to claim 3, characterized in that: The RGBCW five-way LED control circuit includes: a resistor R6, a chip U2, a capacitor C4, a capacitor C5, an LED-B light-emitting diode string, an LED-R light-emitting diode string, an LED-G light-emitting diode string, an LED-G light-emitting diode string and an LED-C light-emitting diode string; one end of the resistor R6 is simultaneously connected to the cathode of the diode D2, the cathode of the capacitor CD1, one end of the resistor R5 away from the chip U1, the anode of the LED-B light-emitting diode string, the anode of the LED-R light-emitting diode string, the anode of the LED-G light-emitting diode string, the anode of the LED-G light-emitting diode string and the anode of the LED-C light-emitting diode string, and the resistor R6 The other end is connected to the chip U2; one end of the capacitor C5 is connected to the chip U2, and the other end of the resistor R5 is simultaneously connected to the positive electrode of the capacitor CD1, the end of the resistor R5 close to the chip U1, one end of the capacitor C4, the chip U2 and one end of the resistor R8; the other end of the capacitor C4 is connected to the chip U2; the cathode of the LED-B light-emitting diode string is connected to the chip U2; the cathode of the LED-R light-emitting diode string is connected to the chip U2; the cathode of the LED-G light-emitting diode string is connected to the chip U2; the cathode of the LED-W light-emitting diode string is connected to the chip U2; the cathode of the LED-C light-emitting diode string is connected to the chip U2.

5. The circuit of the smart lamp compatible dimmer according to claim 4, characterized in that: The chip U2 includes: DUT1, VIN, DATA, CLK, DUT2, DUT3, DUT4 and DUT5 pins; the DUT1 pin is connected to the cathode of the LED-B light-emitting diode string; the VIN pin is connected to the end of the resistor R6 away from the diode D2; the DATA pin is connected to the end of the capacitor C5 close to the chip U2; the CLK pin is connected to the end of the capacitor C4 close to the chip U2; the DUT2 is connected to the cathode of the LED-R light-emitting diode string; the DUT3 pin is connected to the cathode of the LED-G light-emitting diode string; the DUT4 pin is connected to the cathode of the LED-W light-emitting diode string; the DUT5 pin is connected to the cathode of the LED-C light-emitting diode string.

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