LED drivers, LED lamps and anti-counterfeiting systems

Abstract

The present application relates to an anti-counterfeiting system, including an LED driver and an LED lamp, wherein the driving output end of the LED driver is connected to the driving input end of the LED lamp, the first switch end of the driver is connected to the second switch end of the LED lamp; the first anti-counterfeiting end of the first anti-counterfeiting circuit is connected to the second anti-counterfeiting end of the second anti-counterfeiting circuit; the first anti-counterfeiting circuit controls the on and off of the switch circuit by receiving a confirmation code from the second anti-counterfeiting circuit, so as to realize anti-counterfeiting verification between the LED driver and the LED lamp.

Description

Technical Field

[0001] The present application relates to the field of LED technology, and more specifically, to an LED driver, an LED lamp, and an anti-counterfeiting system. Background Art

[0002] With the rapid development and iteration of LED lighting, consumers' focus on lighting products has shifted from low prices to high quality. In order to protect and purify the market environment and provide consumers with better products and services. Therefore, product anti-counterfeiting has become a necessary means to protect regular manufacturers and consumers. Regarding product anti-counterfeiting measures, companies generally adopt anti-counterfeiting logos or QR codes on the product body (laser engraving), laser anti-counterfeiting printing on the outer packaging, and other means for anti-counterfeiting identification. The above anti-counterfeiting methods cannot completely eliminate counterfeit and shoddy products, resulting in safety hazards caused by the use of counterfeit and shoddy products. Summary of the invention

[0003] The present application aims to overcome the potential safety hazard caused by the use of counterfeit and shoddy products. The technical problem to be solved by the present application is to provide an LED driver, an LED lamp and an anti-counterfeiting system.

[0004] An LED driver comprises a first anti-counterfeiting circuit and at least one switch circuit.

[0005] The LED driver is provided with a driving output terminal connected to the LED lamp, and at least one first switch terminal; the first anti-counterfeiting circuit is provided with a first power supply terminal connected to the driving output terminal, a control terminal connected to the switch circuit, and a first anti-counterfeiting terminal connected to the LED lamp; the switch circuit is connected between the first switch terminal and the LED lamp;

[0006] The first anti-counterfeiting circuit sends an anti-counterfeiting code to the LED lamp through the first anti-counterfeiting end, and receives a confirmation code from the LED lamp to control the on and off of the switch circuit.

[0007] Optionally, the first anti-counterfeiting circuit includes a first anti-counterfeiting chip, the control end and the first anti-counterfeiting end are arranged on the first anti-counterfeiting chip, the first anti-counterfeiting chip is connected to the second anti-counterfeiting end of the LED lamp through the first anti-counterfeiting end, and the first anti-counterfeiting chip is connected to the switch circuit through the control end.

[0008] Optionally, the first anti-counterfeiting circuit also includes a first power supply chip, the first power supply end is arranged on the first power supply chip, and the first power supply chip is also provided with a first power supply end connected to the power input end of the first anti-counterfeiting chip, and the first power supply end and the first power supply end are both provided with filter capacitors.

[0009] Optionally, a voltage stabilizing circuit is further provided between the first anti-counterfeiting end and the LED lamp.

[0010] The voltage-stabilizing circuit includes a first resistor, a second resistor, a first capacitor, and a first voltage-stabilizing tube. The first resistor is connected between the first anti-counterfeiting end and the LED lamp, the second resistor, the first capacitor, and the first voltage-stabilizing tube are connected to the first anti-counterfeiting end, and the other end of the second resistor is connected to the first power supply end, and the other ends of the first capacitor and the first voltage-stabilizing tube are grounded.

[0011] Optionally, the first anti-counterfeiting chip is further connected to at least one pull-up resistor, and another end of the pull-up resistor is connected to the first power supply end.

[0012] Optionally, the switching circuit includes a first MOS tube, a third resistor, and a first diode, the gate of the first MOS tube is connected to the control end, the source of the first MOS tube is connected to the first switch end, and the drain is connected to the LED lamp; the third resistor is connected between the gate and the source of the first MOS tube; the first diode is connected to the source of the first MOS tube and the other end of the first diode is grounded.

[0013] In addition, the present application also provides an LED lamp, including a second anti-counterfeiting circuit,

[0014] The LED lamp is provided with a driving input terminal connected to the LED driver, and at least one second switch terminal; the second anti-counterfeiting circuit is provided with a second power supply terminal connected to the driving output terminal, and a second anti-counterfeiting terminal connected to the LED driver;

[0015] The second anti-counterfeiting circuit receives the anti-counterfeiting code of the LED driver through the second anti-counterfeiting end, and sends a confirmation code through the second anti-counterfeiting end.

[0016] Optionally, the second anti-counterfeiting circuit includes a second anti-counterfeiting chip and a second power chip, the second anti-counterfeiting end is arranged on the second anti-counterfeiting chip, and the second power chip is arranged on the second power chip;

[0017] The second power supply chip is further provided with a second power supply end connected to the power input end of the second anti-counterfeiting chip, and the second power supply end and the second power supply end are both provided with a filter capacitor;

[0018] The second anti-counterfeiting end of the second anti-counterfeiting chip is connected to the first anti-counterfeiting end of the LED driver.

[0019] In addition, the present application also provides an anti-counterfeiting system, comprising the above-mentioned LED driver and the above-mentioned LED lamp.

[0020] The driving output end of the LED driver is connected to the driving input end of the LED lamp, and the first switch end of the driver is connected to the second switch end of the LED lamp; the first anti-counterfeiting end of the first anti-counterfeiting circuit is connected to the second anti-counterfeiting end of the second anti-counterfeiting circuit; the first anti-counterfeiting circuit controls the on and off of the switch circuit by receiving the confirmation code of the second anti-counterfeiting circuit.

[0021] Optionally, the first switch end of the LED driver and the switch circuit are both provided with two; the second switch end of the LED lamp is provided with two, and the two second switch ends are connected to the warm color lamp and the cold color lamp respectively;

[0022] The two first switches are respectively connected to the two second switch ends through a switch circuit;

[0023] The first anti-counterfeiting circuit controls the on and off of the warm-color light and the cold-color light by receiving the confirmation code of the second anti-counterfeiting circuit.

[0024] Compared with the prior art, the beneficial effects of this application are:

[0025] (1) The present application sets a first anti-counterfeiting circuit in the LED driver, sends an anti-counterfeiting code to the LED lamp through the first anti-counterfeiting circuit and receives a confirmation code from the LED lamp, turns on the switch circuit, and implements anti-counterfeiting for the LED lamp connected to the LED driver.

[0026] (2) The present application sets a second anti-counterfeiting circuit in the LED lamp, receives the anti-counterfeiting code through the second anti-counterfeiting circuit and sends a confirmation code to the LED driver, thereby realizing anti-counterfeiting of the connected LED driver.

[0027] (3) The present application sets a first anti-counterfeiting circuit and a second anti-counterfeiting circuit between the LED driver and the LED lamp. After power is turned on, the first anti-counterfeiting circuit actively sends an anti-counterfeiting code through the first anti-counterfeiting terminal. After receiving the anti-counterfeiting code, the second anti-counterfeiting circuit replies with the second anti-counterfeiting circuit confirmation code. The first anti-counterfeiting circuit determines that the confirmation code is correct, which means that the handshake is successful and the LED lamp works normally. If there are more than 3 wrong responses or no response, the main module cuts off the power supply to the slave module and its rear-end LED lamp, and the lamp is turned off and cannot be lit. Circuit anti-counterfeiting is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a circuit diagram of an LED driver according to an embodiment of the present application.

[0029] Figure 2 This is a circuit diagram of an LED lamp according to an embodiment of the present application.

[0030] Figure 3 Schematic diagram of the anti-counterfeiting system structure of an embodiment of the present application.

[0031] Figure 4This is a timing diagram of the interaction between the LED driver and the LED lamp according to an embodiment of the present application. DETAILED DESCRIPTION

[0032] The present application is further described below in conjunction with specific implementation methods.

[0033] The same or similar numbers in the drawings of the embodiments of the present application correspond to the same or similar parts; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", "top", "bottom", "inside", "outside", etc. indicate the orientation or position relationship, it is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent.

[0034] In addition, if there are terms such as "first" and "second", they are only used for descriptive purposes, mainly to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components, and cannot be understood as indicating or implying relative importance.

[0035] In such Figure 1In an embodiment, the present application provides an LED driver 100, including a first anti-counterfeiting circuit 110 and at least one switch circuit 120. The LED driver 100 is provided with a driving output terminal P1_V+ connected to an LED lamp 200, and at least one first switch terminal P1_Cl-; the first anti-counterfeiting circuit 110 is provided with a first power supply terminal U2_VIN connected to the driving output terminal P1_V+, a control terminal U1_P60 connected to the switch circuit 120, and a first anti-counterfeiting terminal U1_P61 connected to the LED lamp 200; the switch circuit 120 is connected between the first switch terminal P1_Cl- and the LED lamp 200; the first anti-counterfeiting circuit 110 sends an anti-counterfeiting code to the LED lamp 200 through the first anti-counterfeiting terminal U1_P61, and receives a confirmation code from the LED lamp 200 to control the on and off of the switch circuit 120. In this embodiment, the driving output terminal P1_V+ is the LED constant current driving power output terminal of the LED driver 100, which is used to provide the working power supply of the LED lamp 200. The first anti-counterfeiting circuit 110 is connected to the driving output terminal P1_V+, and because the driving output terminal P1_V+ is connected to the driving input, the first anti-counterfeiting circuit 110 can send a signal to the LED lamp 200 or receive a signal from the LED lamp 200 through the first anti-counterfeiting terminal U1_P61. A second anti-counterfeiting circuit that identifies the anti-counterfeiting code and feeds back a confirmation code can be set in the LED lamp 200; the LED driver 100 of the present application interacts with the LED lamp 200 through the first anti-counterfeiting circuit 110. The present application sets the LED driver 100 in the LED driver 100, sends the anti-counterfeiting code to the LED lamp 200 through the first anti-counterfeiting circuit 110 and receives the confirmation code of the LED lamp 200, turns on the switch circuit 120, and realizes anti-counterfeiting of the connected LED lamp 200. Among them, the number of the switch circuit 120 can be one or more, respectively connected to multiple first switch terminals P1_Cl-, and can be used to control one or more lamp beads in the LED lamp 200.

[0036] In some embodiments, the first anti-counterfeiting circuit 110 includes a first anti-counterfeiting chip U1, a control terminal U1_P60 and a first anti-counterfeiting terminal U1_P61 are arranged on the first anti-counterfeiting chip U1, the first anti-counterfeiting chip U1 is connected to the second anti-counterfeiting terminal U3_P61 of the LED lamp 200 through the first anti-counterfeiting terminal U1_P61, and the first anti-counterfeiting chip U1 is connected to the switch circuit 120 through the control terminal U1_P60. In this embodiment, the first anti-counterfeiting chip U1 can be a chip of the M8P60xx series / STC15F / W10xx model; the present application sends an anti-counterfeiting code to the LED lamp 200 through the first anti-counterfeiting chip U1, and receives a confirmation code from the LED lamp 200, thereby controlling the on and off of the switch circuit 120.

[0037] In one implementation of the above embodiment, the first anti-counterfeiting circuit 110 also includes a first power chip U2, a first power terminal U2_VIN is arranged on the first power chip U2, and the first power chip U2 is also provided with a first power supply terminal connected to the power input terminal of the first anti-counterfeiting chip U1, and the first power terminal U2_VIN and the first power supply terminal VCC are both provided with a filter capacitor. In the present application, the first power chip U2 can be a linear step-down IC of model RT9068, and the filter capacitor is used to filter the clutter of the first power terminal U2_VIN and the first power supply terminal VCC. The power supply of the driving output terminal P1_V+ is converted into a stable 5V voltage for use by the first anti-counterfeiting chip U1 through the first power circuit.

[0038] In one implementation of the above embodiment, a voltage stabilizing circuit is also provided between the first anti-counterfeiting end U1_P61 and the LED lamp 200, and the voltage stabilizing circuit includes a first resistor R1, a second resistor R2, a first capacitor C1, and a first voltage stabilizing tube DZ1. The first resistor R1 is connected between the first anti-counterfeiting end U1_P61 and the LED lamp 200, and the second resistor R2, the first capacitor C1, and the first voltage stabilizing tube DZ1 are connected to the first anti-counterfeiting end U1_P61, and the other end of the second resistor R2 is connected to the first power supply end VCC, and the other ends of the first capacitor C1 and the first voltage stabilizing tube DZ1 are grounded. In this embodiment, the first resistor R1, the first voltage stabilizing tube DZ1, and the first capacitor C1 constitute a protection circuit between the first anti-counterfeiting end U1_P61 and the second anti-counterfeiting end U3_P61, and through current limiting and clamping, the first anti-counterfeiting chip U1 is effectively protected from damage and failure in various abnormal situations such as hot plug shock and connection errors.

[0039] In one implementation of the above embodiment, the first anti-counterfeiting chip U1 is further connected to at least one pull-up resistor, and the other pull-up resistor is connected to the first power supply terminal VCC. The pull-up resistor sets the pin to be pulled up by default, which is used to keep the internal power supply of the first anti-counterfeiting chip U1 stable.

[0040] In some embodiments, the switch circuit 120 includes a first MOS tube Q1, a third resistor R3, and a first diode D1. The gate of the first MOS tube Q1 is connected to the control terminal U1_P60, the source of the first MOS tube Q1 is connected to the first switch terminal P1_Cl-, and the drain is connected to the LED lamp 200; the third resistor R3 is connected between the gate and the source of the first MOS tube Q1; the first diode D1 is connected to the source of the first MOS tube Q1 and the other end of the first diode D1 is grounded. In this embodiment, the first MOS tube Q1 is controlled to be turned on or off by the first anti-counterfeiting chip U1. When turned on, the LED lamp 200 is lit, and when turned off, the LED lamp 200 does not work. The third resistor R3 and the first diode D1 are used to stabilize the circuit.

[0041] See also Figure 2In the embodiment shown, the present application further provides an LED lamp 200, including a second anti-counterfeiting circuit 210, wherein the LED lamp 200 is provided with a driving input terminal P4_V+ connected to the LED driver 100, and at least one second switch terminal P4_Cl-; the second anti-counterfeiting circuit 210 is provided with a second power supply terminal connected to the driving output terminal P1_V+, and a second anti-counterfeiting terminal U3_P61 connected to the LED driver 100; the second anti-counterfeiting circuit 210 receives the anti-counterfeiting code of the LED driver 100 through the second anti-counterfeiting terminal U3_P61, and sends a confirmation code through the second anti-counterfeiting terminal U3_P61. In this embodiment, the driving input terminal P4_V+ is an LED constant current driving power input terminal, which is used to provide the working power supply of the LED lamp 200. The second anti-counterfeiting circuit 210 is connected to the driving input terminal P4_V+, and because the driving output terminal P1_V+ is connected to the driving input, the second anti-counterfeiting circuit 210 can receive the anti-counterfeiting code of the LED lamp 200 through the second anti-counterfeiting terminal U3_P61 and feedback the confirmation code to realize anti-counterfeiting of the connected LED lamp 200. Among them, the number of lamp beads of the LED lamp 200 can be one or more. In this embodiment, the LED lamp 200 can include a cold color lamp and a warm color lamp.

[0042] In some embodiments, the second anti-counterfeiting circuit 210 includes a second anti-counterfeiting chip U3 and a second power chip U4. The second anti-counterfeiting terminal U3_P61 is arranged on the second anti-counterfeiting chip U3, and the second power chip U4 is arranged on the second power chip U4; the second power chip U4 is also provided with a second power supply terminal connected to the power input terminal of the second anti-counterfeiting chip U3, and the second power supply terminal and the second power supply terminal are both provided with a filter capacitor; the second anti-counterfeiting terminal U3_P61 of the second anti-counterfeiting chip U3 is connected to the first anti-counterfeiting terminal U1_P61 of the LED driver 100. In this embodiment, the second anti-counterfeiting chip U3 can be a chip of the M8P60xx series / STC15F / W10xx model, and the second power chip U4 can be a linear buck IC of the RT9068 model; the second anti-counterfeiting chip U3 is interactively connected with the first anti-counterfeiting circuit 110 through the second anti-counterfeiting terminal U3_P61. Among them, the second anti-counterfeiting chip U3 and the second power chip U4 are also provided with a pull-down resistor for stabilizing the chip, and the other end of the pull-down resistor is grounded.

[0043] In such Figure 3-4In the illustrated embodiment, the present application also provides an anti-counterfeiting system, including the above-mentioned LED driver 100 and the above-mentioned LED lamp 200, the driving output terminal P1_V+ of the LED driver 100 is connected to the driving input terminal P4_V+ of the LED lamp 200, the first switch terminal P1_Cl- of the driver is connected to the second switch terminal P4_Cl- of the LED lamp 200; the first anti-counterfeiting terminal U1_P61 of the first anti-counterfeiting circuit 110 is connected to the second anti-counterfeiting terminal U3_P61 of the second anti-counterfeiting circuit 210; the first anti-counterfeiting circuit 110 controls the on and off of the switch circuit 120 by receiving the confirmation code of the second anti-counterfeiting circuit 210. In this embodiment, the present application sets a first anti-counterfeiting circuit 110 and a second anti-counterfeiting circuit 210 between the LED driver 100 and the LED lamp 200. After power is turned on, the first anti-counterfeiting circuit 110 actively sends an anti-counterfeiting code through the first anti-counterfeiting terminal U1_P61. After receiving the anti-counterfeiting code, the second anti-counterfeiting circuit 210 replies to the second anti-counterfeiting circuit 210 confirmation code. The first anti-counterfeiting circuit 110 determines that the confirmation code is correct, that is, the handshake is successful, and the LED lamp 200 works normally. If there are more than 3 wrong responses or no response, the main module cuts off the power supply to the slave module and its rear-end LED lamp 200, and the lamp is turned off and cannot be lit. Circuit anti-counterfeiting is achieved.

[0044] In a specific implementation of the above embodiment, the first switch terminal P1_Cl- of the LED driver 100 and the switch circuit 120 are both provided with two; the second switch terminal P4_Cl- of the LED lamp 200 is provided with two, and the two second switch terminals P4_Cl- are respectively connected to the warm-colored light and the cold-colored light; the two first switches are respectively connected to the two second switch terminals P4_Cl- through the switch circuit; the first anti-counterfeiting circuit 110 controls the on and off of the warm-colored light and the cold-colored light by receiving the confirmation code of the second anti-counterfeiting circuit 210. In the embodiment of the present application, the first anti-counterfeiting circuit 110 and the second anti-counterfeiting circuit 210 of the present application can be used to control the on and off of multiple LED lights. Specifically, the LED lamp 200 includes a warm-colored light and a cold-colored light, and the two-way switch circuit is controlled by the first anti-counterfeiting chip U1, so as to realize the on and off control of the warm-colored light and the cold-colored light.

[0045] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation methods of the present application. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present application should be included in the protection scope of the claims of the present application.

Claims

1. An anti-counterfeiting system, characterized in that: Including LED drivers, LED lamps, The LED driver includes a first anti-counterfeiting circuit and at least one switch circuit. The LED driver is provided with a driving output terminal connected to the LED lamp and at least one first switch terminal. The first anti-counterfeiting circuit is provided with a first power supply terminal connected to the driving output terminal, a control terminal connected to the switch circuit, and a first anti-counterfeiting terminal connected to the LED lamp. The switch circuit is connected between the first switch terminal and the LED lamp. The first anti-counterfeiting circuit sends an anti-counterfeiting code to the LED lamp through the first anti-counterfeiting terminal, receives a confirmation code from the LED lamp, and controls the on and off of the switch circuit. The first anti-counterfeiting circuit includes a first anti-counterfeiting chip and a first power supply chip, the control end and the first anti-counterfeiting end are arranged on the first anti-counterfeiting chip, the first anti-counterfeiting chip is connected to the second anti-counterfeiting end of the LED lamp through the first anti-counterfeiting end, and the first anti-counterfeiting chip is connected to the switch circuit through the control end, the first power supply end is arranged on the first power supply chip, and the first power supply chip is also provided with a first power supply end connected to the power input end of the first anti-counterfeiting chip, and the first power supply end and the first power supply end are both provided with a filter capacitor; the switch circuit includes a first MOS tube, a third resistor, and a first diode, the gate of the first MOS tube is connected to the control end, the source of the first MOS tube is connected to the first switch end, and the drain is connected to the LED lamp; The third resistor is connected between the gate and the source of the first MOS tube; The first diode is connected to the source stage of the first MOS tube and the other end of the first diode is grounded; The LED lamp includes a second anti-counterfeiting circuit, and the LED lamp is provided with a driving input end connected to the LED driver, and at least one second switch end connected to the first switch end; the second anti-counterfeiting circuit is provided with a second power supply end connected to the driving output end, and a second anti-counterfeiting end connected to the LED driver; the second anti-counterfeiting circuit receives the anti-counterfeiting code of the LED driver through the second anti-counterfeiting end, and sends a confirmation code through the second anti-counterfeiting end; the second anti-counterfeiting circuit includes a second anti-counterfeiting chip and a second power supply chip, the second anti-counterfeiting end is arranged on the second anti-counterfeiting chip, and the second power supply chip is arranged on the second power supply chip; the second power supply chip is also provided with a second power supply end connected to the power input end of the second anti-counterfeiting chip, and the second power supply end and the second power supply end are both provided with a filter capacitor; the second anti-counterfeiting end of the second anti-counterfeiting chip is connected to the first anti-counterfeiting end of the LED driver.

2. An anti-counterfeiting system according to claim 1, characterized in that: A voltage stabilizing circuit is also arranged between the first anti-counterfeiting end and the LED lamp, and the voltage stabilizing circuit includes a first resistor, a second resistor, a first capacitor, and a first voltage stabilizing tube. The first resistor is connected between the first anti-counterfeiting end and the LED lamp, the second resistor, the first capacitor, and the first voltage stabilizing tube are connected to the first anti-counterfeiting end, and the other end of the second resistor is connected to the first power supply end, and the other ends of the first capacitor and the first voltage stabilizing tube are grounded.

3. An anti-counterfeiting system according to claim 1, characterized in that: The first anti-counterfeiting chip is also connected to at least one pull-up resistor, and the other end of the pull-up resistor is connected to the first power supply end.

4. The anti-counterfeiting system according to claim 1, characterized in that: The LED driver has two first switch terminals and two switch circuits; the LED lamp has two second switch terminals, and the two second switch terminals are connected to the warm color lamp and the cold color lamp respectively; The two first switches are connected to the two second switch terminals through switch circuits respectively; The first anti-counterfeiting circuit controls the on and off of the warm-color light and the cold-color light by receiving the confirmation code of the second anti-counterfeiting circuit.

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