Track lighting system and control circuit thereof

Abstract

A track lighting system and a control circuit thereof. The control circuit comprises: a first detection circuit and a gating circuit which are provided in each light fixture, wherein the first detection circuit is used for detecting the connection states of the light fixture on a first track and a second track, and the gating circuit is separately and electrically connected to the first detection circuit, a plurality of light-emitting members, the first track and the second track, and is used for controlling each light-emitting member to be connected to the first track or the second track on the basis of the connection states; and / or, a second detection circuit, a plurality of switch circuits and a processor which are provided in a controller, wherein the plurality of switch circuits are in one-to-one correspondence with the plurality of light-emitting elements, each switch circuit is electrically connected to the first track or the second track, the second detection circuit is used for detecting the connection states of the controller on the first track and the second track, and the processor is separately and electrically connected to the second detection circuit and the plurality of switch circuits, and is used for controlling the plurality of switch circuits on the basis of the connection states.

Description

Track lights and their control circuits

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. CN202410805405.6, filed on June 20, 2024, entitled “Track Light and Control Circuit Thereof”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of lighting equipment technology, and in particular to a control circuit for a track light and a track light itself. Background Technology

[0004] The widespread adoption and application of smart lighting technology has led to smart lighting and smart scenes gradually becoming part of home decoration design, enhancing the lighting comfort of home life. Among these trends, the smart no-main-light design style is in high demand in the home decoration market, and smart magnetic track lighting products are often combined with no-main-light home decoration lighting designs.

[0005] Current integrated intelligent magnetic track lights mainly consist of a driver power controller and circuit lighting products, paired with a mobile app to control the switching, brightness, and color temperature of the circuit lights. When the lights are first installed in the track and powered on, inconsistencies in color temperature may occur within one circuit. This same inconsistency arises when adjusting the color temperature via the app. In such cases, installers must manually remove the lights with inconsistent color temperatures, rotate them 180°, and then reinstall them in the track to achieve consistency between the actual lighting color temperature and the app's control. This process requires installing and debugging multiple lights and control circuits, leading to repeated rework and adjustments, resulting in lengthy debugging times, high installation costs, and significant challenges in after-sales maintenance.

[0006] Application content

[0007] This disclosure aims to at least partially address one of the technical problems in the related art. To this end, the first objective of this disclosure is to provide a control circuit for a track light. The control circuit includes: a first detection circuit and a selection circuit disposed within each light fixture. The first detection circuit is used to detect the connection status of the light fixture on a first track and a second track. The selection circuit is electrically connected to the first detection circuit, multiple light-emitting elements, the first track, and the second track, respectively, and is used to control each light-emitting element to connect to the first track or the second track based on the connection status. And / or, a second detection circuit, multiple switching circuits, and a processor disposed within a controller. The multiple switching circuits correspond one-to-one with multiple light-emitting elements, and each switching circuit is electrically connected to the first track or the second track. The second detection circuit is used to detect the connection status of the controller on the first track and the second track. The processor is electrically connected to the second detection circuit and the multiple switching circuits, respectively, and is used to control the multiple switching circuits based on the connection status. This solves the problem of inconsistent color temperatures among multiple light fixtures in a single loop, and also solves the problem of the color temperature signal sent from the mobile APP control terminal differing from the actual color temperature of the light fixtures.

[0008] The second objective of this disclosure is to propose a track light.

[0009] To achieve the above objectives, a first aspect of this disclosure provides a control circuit for a track light. The track light includes a first track and a second track, and multiple lamps and a controller connected across the first and second tracks. The multiple lamps and the controller are electrically connected through the first and second tracks. Each lamp includes multiple light-emitting elements with different color temperatures. The control circuit includes: a first detection circuit and a selection circuit disposed within each lamp. The first detection circuit is used to detect the connection status of the lamp on the first and second tracks. The selection circuit is electrically connected to the first detection circuit, the multiple light-emitting elements, the first track, and the second track, respectively, and is used to control each light-emitting element to connect to the first track or the second track based on the connection status. And / or, a second detection circuit, multiple switching circuits, and a processor disposed within the controller. The multiple switching circuits correspond one-to-one with the multiple light-emitting elements, and each switching circuit is electrically connected to the first track or the second track. The second detection circuit is used to detect the connection status of the controller on the first and second tracks. The processor is electrically connected to the second detection circuit and the multiple switching circuits, respectively, and is used to control the multiple switching circuits based on the connection status.

[0010] According to one embodiment of this disclosure, a plurality of light-emitting elements include a first light-emitting element and a second light-emitting element. The selection circuit is used to: control the first light-emitting element to connect with the first track and control the second light-emitting element to connect with the second track when the connection state of the lamp is positive; and control the first light-emitting element to connect with the first track and control the second light-emitting element to connect with the second track when the connection state of the lamp is reversed.

[0011] According to one embodiment of this disclosure, the gating circuit includes: a first gating sub-circuit, a first terminal of the first gating sub-circuit electrically connected to a first light-emitting element, a second terminal of the first gating sub-circuit adapted to be electrically connected to a first track, a third terminal of the first gating sub-circuit electrically connected to a second light-emitting element, and a fourth terminal of the first gating sub-circuit adapted to be electrically connected to a second track; wherein, in the positive connection state, the first terminal and the second terminal of the first gating sub-circuit are connected, and the third terminal and the fourth terminal are connected;

[0012] The second selection sub-circuit has a first terminal electrically connected to the first light-emitting element, a second terminal adapted to be electrically connected to the second track, a third terminal electrically connected to the second light-emitting element, and a fourth terminal adapted to be electrically connected to the first track; wherein, in the reverse connection state, the first and second terminals of the second selection sub-circuit are connected, and the third and fourth terminals are connected.

[0013] According to one embodiment of this disclosure, the first selection sub-circuit includes: a first switch transistor, a first diode, a second switch transistor, and a second diode. The first terminal of the first switch transistor is electrically connected to a first light-emitting element, and the second terminal of the first switch transistor is electrically connected to the anode of the first diode. The cathode of the first diode is adapted to connect to a first track. The first terminal of the second switch transistor is electrically connected to a second light-emitting element, and the second terminal of the second switch transistor is electrically connected to the anode of the second diode. The cathode of the second diode is adapted to connect to a second track. The control terminals of the first switch transistor and the second switch transistor are respectively electrically connected to the first output terminal of the first detection circuit. The first output terminal is used to output a positive connection control signal corresponding to the positive connection state.

[0014] According to one embodiment of this disclosure, the second selection sub-circuit includes: a third switch, a third diode, a fourth switch, and a fourth diode. The first terminal of the third switch is electrically connected to the first light-emitting element, the second terminal of the third switch is electrically connected to the anode of the third diode, and the cathode of the third diode is adapted to connect to the second track. The first terminal of the fourth switch is electrically connected to the second light-emitting element, the second terminal of the fourth switch is electrically connected to the anode of the fourth diode, and the cathode of the fourth diode is adapted to connect to the first track. The control terminals of the third switch and the fourth switch are respectively electrically connected to the second output terminal of the first detection circuit. The second output terminal is used to output a reverse connection control signal corresponding to the reverse connection state.

[0015] According to one embodiment of this disclosure, the positive and negative terminals of a plurality of lamps are electrically connected to a first rail and a second rail to draw power through the first rail and the second rail. A first detection circuit is used to detect the connection status of the positive and negative terminals of the lamps as the connection status of the lamps.

[0016] According to one embodiment of this disclosure, the first detection circuit includes: a first detection sub-circuit, which is electrically connected to the positive and negative terminals of the lamp and the gating circuit respectively, and is used to output a positive connection control signal when the positive and negative terminal connection state is detected to be positive; and a second detection sub-circuit, which is electrically connected to the positive and negative terminals of the lamp and the gating circuit respectively, and is used to output a reverse connection control signal when the positive and negative terminal connection state is detected to be reverse.

[0017] According to one embodiment of this disclosure, the first detection sub-circuit includes: a first resistor, one end of which is electrically connected to the positive electrode of the lamp; a fifth diode, the anode of which is electrically connected to the other end of the first resistor, and the connection point serves as the first output terminal of the first detection circuit to output a positive control signal; and a second resistor, one end of which is electrically connected to the cathode of the fifth diode, and the other end of which is electrically connected to the negative electrode of the lamp.

[0018] According to one embodiment of this disclosure, the second detection sub-circuit includes: a third resistor, one end of which is electrically connected to the positive terminal of the lamp; a sixth diode, the cathode of which is electrically connected to the other end of the third resistor; and a fourth resistor, one end of which is electrically connected to the anode of the sixth diode, and the connection point serves as the second output terminal of the first detection circuit to output a reverse connection control signal, and the other end of the fourth resistor is electrically connected to the negative terminal of the lamp.

[0019] According to one embodiment of this disclosure, a plurality of light-emitting elements include a first light-emitting element and a second light-emitting element, and a plurality of switching circuits include a first switching circuit and a second switching circuit. The processor is configured to: control the first switching circuit to close to make the first light-emitting element light up when the controller is in a positive connection state, or control the second switching circuit to close to make the second light-emitting element light up; and control the second switching circuit to close to make the first light-emitting element light up when the controller is in a reverse connection state, or control the first switching circuit to close to make the second light-emitting element light up.

[0020] According to one embodiment of the present disclosure, the first switching circuit includes: a fifth switching transistor, the first end of which is adapted to be connected to a first rail or a second rail, the second end of which is grounded, and the control terminal of which is electrically connected to the first terminal of the processor.

[0021] According to one embodiment of the present disclosure, the second switching circuit includes: a sixth switching transistor, the first end of which is adapted to be connected to a first rail or a second rail, the second end of which is grounded, and the control terminal of which is electrically connected to the second terminal of the processor.

[0022] According to one embodiment of this disclosure, the positive and negative terminals of the controller are electrically connected to the first and second rails to draw power through the first and second rails. The second detection circuit is used to detect the connection status of the positive and negative terminals of the controller as the connection status of the controller.

[0023] According to one embodiment of this disclosure, the second detection circuit includes: a fifth resistor, one end of which is electrically connected to the positive terminal of the controller; a seventh diode, the anode of which is electrically connected to the other end of the fifth resistor; and a sixth resistor, one end of which is electrically connected to the cathode of the seventh diode, and the connection point serves as the output terminal of the second detection circuit to output a detection signal corresponding to the connection state of the controller, and the other end of the sixth resistor is grounded.

[0024] According to one embodiment of this disclosure, the second detection circuit further includes: a first capacitor connected in parallel with a sixth resistor; and a Zener diode, the cathode of which is electrically connected to one end of the sixth resistor, and the anode of which is electrically connected to the other end of the sixth resistor.

[0025] To achieve the above objectives, a second aspect of this disclosure provides a track light including the aforementioned control circuit.

[0026] According to an embodiment of the track light and its control circuit of this disclosure, the control circuit includes: a first detection circuit and a selection circuit disposed within each light fixture; the first detection circuit is used to detect the connection status of the light fixture on a first track and a second track; the selection circuit is electrically connected to the first detection circuit, a plurality of light-emitting elements, the first track, and the second track, respectively, and is used to control each light-emitting element to connect to the first track or the second track based on the connection status; and / or, a second detection circuit, a plurality of switching circuits, and a processor disposed within a controller; the plurality of switching circuits correspond one-to-one with a plurality of light-emitting elements, and each switching circuit is electrically connected to the first track or the second track; the second detection circuit is used to detect the connection status of the controller on the first track and the second track; the processor is electrically connected to the second detection circuit and the plurality of switching circuits, respectively, and is used to control the plurality of switching circuits based on the connection status. Thus, the problem of inconsistent color temperatures among multiple light fixtures in a single circuit is solved. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 is a schematic diagram of the structure of a track light according to some embodiments of the present disclosure;

[0029] Figure 2 is a block diagram of a control circuit for a lamp in positive connection according to some embodiments of the present disclosure;

[0030] Figure 3 is a block diagram of a control circuit for reverse connection of a lamp according to some embodiments of the present disclosure;

[0031] Figure 4 is a block diagram of a control circuit in which both the lamp and the controller are positively connected according to some embodiments of the present disclosure;

[0032] Figure 5 is a block diagram of a control circuit with the lamp reversed and the controller correctly connected according to some embodiments of the present disclosure;

[0033] Figure 6 is a block diagram of a control circuit with the lamp connected in the correct direction and the controller connected in the reverse direction according to some embodiments of the present disclosure;

[0034] Figure 7 is a block diagram of a control circuit in which the lighting controllers of some embodiments of the present disclosure are all reversed;

[0035] Figure 8 is a schematic diagram of a control circuit for a lamp in positive connection according to some embodiments of the present disclosure;

[0036] Figure 9 is a schematic diagram of a control circuit with the controller in positive connection according to some embodiments of the present disclosure;

[0037] Figure 10 is a schematic diagram of a control circuit with the controller reversed according to some embodiments of the present disclosure;

[0038] Figure 11 is a block diagram of a track light according to some embodiments of the present disclosure. Detailed Implementation

[0039] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0040] The track lights and their control circuits according to embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings.

[0041] In some embodiments, a track light includes a first track and a second track arranged correspondingly, and a plurality of luminaires and a controller connected across the first track and the second track, wherein the plurality of luminaires and the controller are electrically connected through the first track and the second track, and each luminaire includes a plurality of light-emitting elements with different color temperatures. In embodiments of this disclosure, referring to FIG1, an example is given of a track light including two luminaires, one luminaire including two light-emitting elements with different color temperatures and a controller, but this is not intended to limit the present disclosure.

[0042] Specifically, referring to Figures 1-3, lamps 1 and 6, and controller 2 are connected across the first track 3 and the second track 4. Both lamps 1 and 6 include a first light-emitting element L1 and a second light-emitting element L2. The first light-emitting element L1 and the second light-emitting element L2 have different color temperatures; for example, the first light-emitting element L1 emits warm light, and the second light-emitting element L2 emits cool light. Controller 2 includes a first switching circuit 22 and a second switching circuit 23 (each switching circuit corresponds one-to-one with a light-emitting element of the lamp). A power supply 5 (e.g., an AC-DC power supply) is also connected across the first track 3 and the second track 4. For example, the positive terminal of the AC-DC power supply is connected across the first track 3, and the negative terminal is connected across the second track 4, energizing the first track 3 and the second track 4, thereby electrically connecting lamps 1, 6, and controller 2. Controller 2 can control lamps 1 and 6, for example, by controlling the first switching circuit 22 to conduct and illuminate the lamps with a warm color, and by controlling the second switching circuit 23 to conduct and illuminate the lamps with a cool color.

[0043] It should be noted that lamp 1, lamp 6, controller 2, and power supply 5 can be placed at any position on the track. The specific position is determined according to the actual situation, and no specific restrictions are imposed here. In addition, the positive terminal of power supply 5 is connected across the first track 3, and the negative terminal is connected across the second track 4. The position of the spring is always fixed and will not be reversed.

[0044] In related technologies, one or more of the lamps 1, 6 and controller 2 may be connected to the first rail 3 and the second rail 4 in a positive or negative connection state. Different connection states of lamps 1 and 6 will result in different color temperatures of lamps in the same circuit.

[0045] For example, referring to Figure 2, when lamp 1, lamp 6 and controller 2 are all in the positive connection state, the second switch circuit 23 in controller 2 is in the conducting state, then the second light-emitting element L2 of lamp 1 emits light, and the second light-emitting element L2 of lamp 6 emits light.

[0046] Referring to Figure 3, when both lamp 1 and controller 2 are in the positive connection state and lamp 6 is in the reverse connection state, the second switch circuit 23 in controller 2 is in the conducting state. Then, the second light-emitting element L2 of lamp 1 emits light, and the first light-emitting element L1 of lamp 6 emits light. At this time, the lamps in the same circuit have different color temperatures.

[0047] To solve the above problems, the control circuit of this disclosure includes: a first detection circuit 11 and a selection circuit 12 disposed in each lamp. The first detection circuit 11 is used to detect the connection status of the lamp on the first track 3 and the second track 4. The selection circuit 12 is electrically connected to the first detection circuit 11, multiple light-emitting elements, the first track 3 and the second track 4 respectively, and is used to control each light-emitting element to connect to the first track 3 or the second track 4 based on the connection status; and / or, a second detection circuit 21, multiple switching circuits and a processor 24 disposed in the controller 2. The multiple switching circuits correspond one-to-one with multiple light-emitting elements, and each switching circuit is electrically connected to the first track 3 or the second track 4. The second detection circuit 21 is used to detect the connection status of the controller 2 on the first track 3 and the second track 4. The processor 24 is electrically connected to the second detection circuit 21 and the multiple switching circuits respectively, and is used to control the multiple switching circuits based on the connection status.

[0048] Specifically, by setting a first detection circuit 11 and a selection circuit 12 in each lamp, the selection circuit 12 controls each light-emitting element to connect with the first track 3 or the second track 4 based on the connection status. In the controller 2, there is a second detection circuit 21, multiple switching circuits and a processor 24. The second detection circuit 21 detects the connection status of the controller 2 on the first track 3 and the second track 4 and outputs a corresponding control signal to the processor 24. The processor 24 controls one of the multiple switching circuits to be turned on, so that the color temperature of the lamps 1 and 6 remains consistent regardless of whether they are in the positive or negative connection state.

[0049] For example, referring to Figure 4, when the second detection circuit 21 detects that the controller 2 is in a positive connection state, the second detection circuit 21 transmits a signal (e.g., a high level) to the processor 24. The processor 24 turns on the first switching circuit 22 and simultaneously turns off the second switching circuit 23. At this time, if the first detection circuit 11 detects that the lamp is in a positive connection state, it transmits a positive connection control signal to the gating circuit 12. The gating circuit 12 controls the first light-emitting element L1 of the lamp to connect with the first track 3, and the second light-emitting element L2 of the lamp to connect with the second track 4, based on the positive connection control signal. At this time, the first light-emitting element L1 of the lamp, the gating circuit 12, the first track 3, and the first switching circuit 22 form a loop, and the first light-emitting element L1 of the lamp emits light.

[0050] For example, referring to Figure 5, the controller 2 is still in the positive connection state, the first switching circuit 22 is on, and the second switching circuit 23 is off. If the first detection circuit 11 detects that the lamp is in the reverse connection state, it will transmit a reverse connection control signal to the selection circuit 12. Based on the reverse connection control signal, the selection circuit 12 can still control the first light-emitting element L1 of the lamp to connect with the first track 3, and the second light-emitting element L2 of the lamp to connect with the second track 4. At this time, the first light-emitting element L1 of the lamp, the selection circuit 12, the first track 3, and the first switching circuit 22 form a loop, and the first light-emitting element L1 of the lamp emits light.

[0051] For example, referring to Figure 6, when the second detection circuit 21 detects that the controller 2 is in a reverse connection state, the second detection circuit 21 will transmit a signal (e.g., a high level) to the processor 24. The processor 24 will turn on the second switching circuit 23 and simultaneously turn off the first switching circuit 22. If the first detection circuit 11 detects that the lamp is in a positive connection state, it will transmit a positive connection control signal to the gating circuit 12. The gating circuit 12 controls the first light-emitting element L1 of the lamp to connect with the first track 3, and the second light-emitting element L2 of the lamp to connect with the second track 4, based on the positive connection control signal. At this time, the first light-emitting element L1 of the lamp, the gating circuit 12, the first track 3, and the second switching circuit 23 form a loop, and the first light-emitting element L1 of the lamp emits light.

[0052] For example, referring to Figure 7, the controller 2 is still in the reverse connection state, the second switching circuit 23 is on, and the first switching circuit 22 is off. If the first detection circuit 11 detects that the lamp is in the reverse connection state, it will transmit a reverse connection control signal to the selection circuit 12. Based on the reverse connection control signal, the selection circuit 12 can still control the first light-emitting element L1 of the lamp to connect with the first track 3, and the second light-emitting element L2 of the lamp to connect with the second track 4. At this time, the first light-emitting element L1 of the lamp, the selection circuit 12, the first track 3, and the second switching circuit 23 form a loop, and the first light-emitting element L1 of the lamp emits light.

[0053] In other words, regardless of whether the lamp is in the forward or reverse connection state, or whether the controller 2 is in the forward or reverse connection state, the color of the lamps in the circuit is consistent. This solves the problem of inconsistent color temperatures among multiple lamps in a single circuit.

[0054] In some embodiments, referring to FIG4, the plurality of light-emitting elements include a first light-emitting element L1 and a second light-emitting element L2. The selection circuit 12 is used to: control the first light-emitting element L1 to connect with the first track 3 and control the second light-emitting element L2 to connect with the second track 4 when the connection state of the lamp is positive; and control the first light-emitting element L1 to connect with the first track 3 and control the second light-emitting element L2 to connect with the second track 4 when the connection state of the lamp is reversed.

[0055] For example, referring to Figure 4 or Figure 6, when the lamp is connected in the correct orientation, the selection circuit 12 can control the first light-emitting element L1 to connect with the first track 3 and control the second light-emitting element L2 to connect with the second track 4. Referring to Figure 5 or Figure 7, when the lamp is connected in the reverse orientation, the selection circuit 12 can still control the first light-emitting element L1 to connect with the first track 3 and control the second light-emitting element L2 to connect with the second track 4.

[0056] In some embodiments, referring to FIG8, the gating circuit 12 includes: a first gating sub-circuit 121, a first terminal a1 of the first gating sub-circuit 121 being electrically connected to a first light-emitting element L1, a second terminal b1 of the first gating sub-circuit 121 being adapted to be electrically connected to a first track 3, a third terminal c1 of the first gating sub-circuit 121 being electrically connected to a second light-emitting element L2, and a fourth terminal d1 of the first gating sub-circuit 121 being adapted to be electrically connected to a second track 4; wherein, in the positive connection state, the first terminal a1 and the second terminal b1 of the first gating sub-circuit 121 are connected, and the third terminal c1 and the fourth terminal d1 are connected;

[0057] The second selection sub-circuit 122 has a first terminal a2 electrically connected to the first light-emitting element L1, a second terminal b2 adapted to be electrically connected to the second track 4, a third terminal c2 electrically connected to the second light-emitting element L2, and a fourth terminal d2 adapted to be electrically connected to the first track 3. In the reverse connection state, the first terminal a2 and the second terminal b2 of the second selection sub-circuit 122 are connected, and the third terminal c2 and the fourth terminal d2 are connected.

[0058] Specifically, the selection circuit 12 includes a first selection sub-circuit 121 and a second selection sub-circuit 122. In the correct orientation of the lamp, the first light-emitting element L1 can be connected to the first track 3, and the second light-emitting element L2 can be connected to the second track 4, by connecting the first selection sub-circuit 121. In the reverse orientation of the lamp, the first light-emitting element L1 can be connected to the second track 4, and the second light-emitting element L2 can be connected to the first track 3, by connecting the second selection sub-circuit 122.

[0059] For example, referring to Figure 8, when the lamp is in the positive connection state, the second selection sub-circuit 122 is disconnected, and the first selection sub-circuit 121 is connected. Specifically, the first terminal a1 and the second terminal b1 of the first selection sub-circuit 121 are connected, and the third terminal c1 and the fourth terminal d1 are connected. At this time, the first selection sub-circuit 121 can control the first light-emitting element L1 to connect with the first track 3, and control the second light-emitting element L2 to connect with the second track 4.

[0060] For example, in the reverse connection state of the lamp, the first selection sub-circuit 121 is disconnected, and the second selection sub-circuit 122 is connected. Specifically, the first terminal a2 and the second terminal b2 of the second selection sub-circuit 122 are connected, and the third terminal c2 and the fourth terminal d2 are connected. At this time, the second selection sub-circuit 122 can control the first light-emitting element L1 to connect with the second track 4, and control the second light-emitting element L2 to connect with the first track 3.

[0061] In some embodiments, the first selection sub-circuit 121 may include: a first switch Q1, a first diode D1, a second switch Q2, and a second diode D2. The first terminal of the first switch Q1 is electrically connected to the first light-emitting element L1, and the second terminal of the first switch Q1 is electrically connected to the anode of the first diode D1. The cathode of the first diode D1 is adapted to be connected to the first track 3. The first terminal of the second switch Q2 is electrically connected to the second light-emitting element L2, and the second terminal of the second switch Q2 is electrically connected to the anode of the second diode D2. The cathode of the second diode D2 is adapted to be connected to the second track 4. The control terminals of the first switch Q1 and the second switch Q2 are respectively electrically connected to the first output terminal of the first detection circuit 11. The first output terminal is used to output a positive connection control signal corresponding to the positive connection state.

[0062] Specifically, when the first detection circuit 11 detects that the lamp is in the positive connection state, it transmits a positive connection control signal (high level signal) to the control terminals of the first switch Q1 and the second switch Q2, so that the first switch Q1 and the second switch Q2 are turned on, and the first selection sub-circuit 121 is turned on.

[0063] For example, referring to FIG8, in the positive connection state of the lamp, the first light-emitting element L1 is connected to the first track 3 via the first end of the first switch Q1, the second end of the first switch Q1, the anode of the first diode D1, and the cathode of the first diode D1. The second light-emitting element L2 is connected to the second track 4 via the first end of the second switch Q2, the second end of the second switch Q2, the anode of the second diode D2, and the cathode of the second diode D2.

[0064] In some embodiments, referring to FIG8, the second selection sub-circuit 122 may include: a third switch Q3, a third diode D3, a fourth switch Q4, and a fourth diode D4. The first end of the third switch Q3 is electrically connected to the first light-emitting element L1, the second end of the third switch Q3 is electrically connected to the anode of the third diode D3, and the cathode of the third diode D3 is adapted to be connected to the second track 4. The first end of the fourth switch Q4 is electrically connected to the second light-emitting element L2, the second end of the fourth switch Q4 is electrically connected to the anode of the fourth diode D4, and the cathode of the fourth diode D4 is adapted to be connected to the first track 3. The control terminals of the third switch Q3 and the fourth switch Q4 are respectively electrically connected to the second output terminal of the first detection circuit 11. The second output terminal is used to output a reverse connection control signal corresponding to the reverse connection state.

[0065] Specifically, when the first detection circuit 11 detects that the lamp is in a reverse connection state, it will transmit a reverse connection control signal (high level signal) to the control terminals of the third switch Q3 and the fourth switch Q4, so that the third switch Q3 and the fourth switch Q4 are turned on, and the second selection sub-circuit 122 is turned on.

[0066] For example, referring to FIG8, in the reverse connection state of the lamp, the first light-emitting element L1 is connected to the second track 4 via the first end of the third switch Q3, the second end of the third switch Q3, the anode of the third diode D3, and the cathode of the third diode D3. The second light-emitting element L2 is connected to the first track 3 via the first end of the fourth switch Q4, the second end of the fourth switch Q4, the anode of the fourth diode D4, and the cathode of the fourth diode D4.

[0067] In some embodiments, the positive and negative terminals of multiple lamps are electrically connected to the first rail 3 and the second rail 4 to draw power through the first rail 3 and the second rail 4. The first detection circuit 11 is used to detect the connection status of the positive and negative terminals of the lamps as the connection status of the lamps.

[0068] Specifically, the first detection circuit 11 can determine the connection status of the lamp by detecting the positive and negative connection status of the lamp. For example, if the positive terminal of the lamp is electrically connected to the first rail 3 and the negative terminal of the lamp is electrically connected to the second rail 4, then the lamp is determined to be in the positive connection state; if the positive terminal of the lamp is electrically connected to the second rail 4 and the negative terminal of the lamp is electrically connected to the first rail 3, then the lamp is determined to be in the reverse connection state.

[0069] In some embodiments, referring to FIG8, the first detection circuit 11 includes: a first detection sub-circuit 111, which is electrically connected to the positive and negative terminals of the lamp and the gating circuit 12 respectively, and is used to output a positive connection control signal when the positive and negative terminal connection state is detected to be positive connection; and a second detection sub-circuit 112, which is electrically connected to the positive and negative terminals of the lamp and the gating circuit 12 respectively, and is used to output a reverse connection control signal when the positive and negative terminal connection state is detected to be reverse connection.

[0070] For example, referring to Figure 8, when the first detection sub-circuit 111 detects that the lamp is in the positive connection state, it outputs a positive connection control signal (high-level signal) to the first gating sub-circuit 121, causing the first gating sub-circuit 121 to conduct. When the second detection sub-circuit 112 detects that the lamp is in the reverse connection state, it outputs a reverse connection control signal (high-level signal) to the second gating sub-circuit 122, causing the second gating sub-circuit 122 to conduct.

[0071] In some embodiments, referring to FIG8, the first detection sub-circuit 111 includes: a first resistor R1, one end of which is electrically connected to the positive terminal of the lamp; a fifth diode D5, the anode of which is electrically connected to the other end of the first resistor R1, and the connection point serves as the first output terminal of the first detection circuit 11 to output a positive control signal; and a second resistor R2, one end of which is electrically connected to the cathode of the fifth diode D5, and the other end of which is electrically connected to the negative terminal of the lamp.

[0072] Specifically, referring to Figure 8, if the positive terminal of the lamp is electrically connected to the first rail 3 and the negative terminal of the lamp is electrically connected to the second rail 4, the positive control signal (high-level signal) will be obtained by voltage division through the first resistor R1, the second resistor R2 and the fifth diode D5 in the first detection sub-circuit 111, and transmitted to the control terminals of the first switch Q1 and the second switch Q2, so that the first switch Q1 and the second switch Q2 are turned on.

[0073] In some embodiments, referring to FIG8, the second detection sub-circuit 112 includes: a third resistor R3, one end of which is electrically connected to the positive terminal of the lamp; a sixth diode D6, the cathode of which is electrically connected to the other end of the third resistor R3; a fourth resistor R4, one end of which is electrically connected to the anode of the sixth diode D6, and the connection point serves as the second output terminal of the first detection circuit 11 to output a reverse connection control signal, and the other end of which is electrically connected to the negative terminal of the lamp.

[0074] Specifically, referring to Figure 8, if the positive terminal of the lamp is electrically connected to the second rail 4 and the negative terminal of the lamp is electrically connected to the first rail 3, the voltage will be divided by the third resistor R3, the fourth resistor R4 and the sixth diode D6 in the second detection sub-circuit 112 to obtain a reverse connection control signal (high level signal), which will be transmitted to the control terminals of the third switch Q3 and the fourth switch Q4 to turn on the third switch Q3 and the fourth switch Q4.

[0075] In some embodiments, the plurality of light-emitting elements include a first light-emitting element L1 and a second light-emitting element L2, and the plurality of switching circuits include a first switching circuit 22 and a second switching circuit 23. The processor 24 is configured to: control the first switching circuit 22 to close to make the first light-emitting element L1 light up when the connection state of the controller 2 is positive, or control the second switching circuit 23 to close to make the second light-emitting element L2 light up; and control the second switching circuit 23 to close to make the first light-emitting element L1 light up when the connection state of the controller 2 is reverse, or control the first switching circuit 22 to close to make the second light-emitting element L2 light up.

[0076] Specifically, referring to Figures 8 and 9, the first terminal Ua of the processor 24 is connected to the first switching circuit 22, and the second terminal Ub of the processor 24 is connected to the second switching circuit 23, used to control the closing or opening of the first switching circuit 22 or the second switching circuit 23. When the controller 2 is in the positive connection state, the first switching circuit 22 is connected to the first rail 3, and the second switching circuit 23 is connected to the second rail 4. Conversely, referring to Figure 10, when the controller 2 is in the reverse connection state, the first switching circuit 22 is connected to the second rail 4, and the second switching circuit 23 is connected to the first rail 3. As can be seen from the above embodiments, regardless of whether the lamp is in the positive or reverse connection state, the first light-emitting element L1 is connected to the first rail 3, and the second light-emitting element L2 is connected to the second rail 4.

[0077] Therefore, when the controller 2 is in the positive connection state, if the processor 24 controls the first switch circuit 22 to close, the first light-emitting element L1 will light up; if the processor 24 controls the second switch circuit 23 to close, the second light-emitting element L2 will light up. When the controller 2 is in the reverse connection state, if the processor 24 controls the first switch circuit 22 to close, the second light-emitting element L2 will light up; if the processor 24 controls the second switch circuit 23 to close, the first light-emitting element L1 will light up.

[0078] In some embodiments, the first switching circuit 22 includes: a fifth switching transistor Q5, the first end of the fifth switching transistor Q5 being adapted to be connected to the first rail 3 or the second rail 4, the second end of the fifth switching transistor Q5 being grounded, and the control terminal of the fifth switching transistor Q5 being electrically connected to the first terminal Ua of the processor 24.

[0079] Specifically, referring to Figure 9, the control terminal of the fifth switch Q5 is electrically connected to the first terminal Ua of the processor 24. If the first terminal Ua of the processor 24 outputs a high-level signal, it can control the fifth switch Q5 to conduct, that is, the first switch circuit 22 is closed. If the first terminal Ua of the processor 24 outputs a low-level signal, it can control the fifth switch Q5 to disconnect, that is, the first switch circuit 22 is disconnected.

[0080] For example, referring to Figure 9, when the controller 2 is in the positive connection state, if the fifth switch Q5 is turned on (the first switch circuit 22 is closed), the voltage forms a circuit through the first light-emitting element L1, the first selection sub-circuit 121, the first track 3, the first terminal of the fifth switch Q5, and the second terminal of the fifth switch Q5 to ground, which can make the first light-emitting element L1 emit light. Conversely, if the fifth switch Q5 is turned off (the first switch circuit 22 is turned off), a circuit cannot be formed, and the first light-emitting element L1 does not emit light.

[0081] For example, referring to Figure 10, when the controller 2 is in the reverse connection state, if the fifth switch Q5 is turned on (the first switch circuit 22 is closed), the voltage forms a loop through the second light-emitting element L2, the first selection sub-circuit 121, the second track 4, the first terminal of the fifth switch Q5, and the second terminal of the fifth switch Q5 to ground, which can make the second light-emitting element L2 emit light. Conversely, if the fifth switch Q5 is turned off (the first switch circuit 22 is turned off), a loop cannot be formed, and the second light-emitting element L2 does not emit light.

[0082] In some embodiments, the second switching circuit 23 includes: a sixth switching transistor Q6, the first end of which is adapted to be connected to the first rail 3 or the second rail 4, the second end of which is grounded, and the control terminal of which is electrically connected to the second terminal Ub of the processor 24.

[0083] Specifically, referring to Figure 9, the control terminal of the sixth switch Q6 is electrically connected to the second terminal Ub of the processor 24. If the second terminal Ub of the processor 24 outputs a high-level signal, it can control the sixth switch Q6 to conduct, that is, the second switch circuit 23 is closed. If the second terminal Ub of the processor 24 outputs a low-level signal, it can control the sixth switch Q6 to disconnect, that is, the second switch circuit 23 is disconnected.

[0084] For example, referring to Figure 9, when the controller 2 is in the positive connection state, if the sixth switch Q6 is turned on (the second switch circuit 23 is closed), the voltage forms a loop through the second light-emitting element L2, the first selection sub-circuit 121, the second track 4, the first terminal of the sixth switch Q6, and the second terminal of the sixth switch Q6 to ground, which can make the second light-emitting element L2 emit light. Conversely, if the sixth switch Q6 is turned off (the second switch circuit 23 is turned off), a loop cannot be formed, and the second light-emitting element L2 does not emit light.

[0085] For example, referring to Figure 10, when the controller 2 is in the reverse connection state, if the sixth switch Q6 is turned on (the second switch circuit 23 is closed), the voltage forms a loop through the first light-emitting element L1, the first selection sub-circuit 121, the first track 3, the first terminal of the sixth switch Q6, and the second terminal of the sixth switch Q6 to ground, which can make the first light-emitting element L1 emit light. Conversely, if the sixth switch Q6 is turned off (the second switch circuit 23 is turned off), a loop cannot be formed, and the first light-emitting element L1 does not emit light.

[0086] In some embodiments, the positive and negative terminals of the controller 2 are electrically connected to the first rail 3 and the second rail 4 to draw power through the first rail 3 and the second rail 4. The second detection circuit 21 is used to detect the connection status of the positive and negative terminals of the controller 2 as the connection status of the controller 2.

[0087] Specifically, the second detection circuit 21 can determine the connection status of controller 2 by detecting the positive and negative connection status of controller 2. For example, if the positive terminal of controller 2 is electrically connected to the first rail 3 and the negative terminal of controller 2 is electrically connected to the second rail 4, then controller 2 is determined to be in the positive connection state; if the positive terminal of controller 2 is electrically connected to the second rail 4 and the negative terminal of controller 2 is electrically connected to the first rail 3, then controller 2 is determined to be in the reverse connection state.

[0088] In some embodiments, the second detection circuit 21 may include: a fifth resistor R5, one end of which is electrically connected to the positive terminal of the controller 2; a seventh diode D7, the anode of which is electrically connected to the other end of the fifth resistor R5; and a sixth resistor R6, one end of which is electrically connected to the cathode of the seventh diode D7, and the connection point serves as the output terminal of the second detection circuit 21 to output a detection signal corresponding to the connection state of the controller 2, and the other end of the sixth resistor R6 is grounded.

[0089] Specifically, when the second detection circuit 21 detects that the controller 2 is in the positive connection state, it will output a high-level signal to the processor 24. The processor 24 will output a high-level signal from either the first terminal Ua or the second terminal Ub, and correspondingly output a low-level signal from the other terminal. When the second detection circuit 21 detects that the controller 2 is in the reverse connection state, it will output a low-level signal to the processor 24. The processor 24 will output a high-level signal from either the first terminal Ua or the second terminal Ub, and correspondingly output a low-level signal from the other terminal.

[0090] In this embodiment of the disclosure, the processor 24 outputs a high-level signal from the first terminal Ua and a low-level signal from the second terminal Ub when the second detection circuit 21 detects that the controller 2 is in the positive connection state. However, this is not intended to limit the scope of the disclosure. Correspondingly, when the second detection circuit 21 detects that the controller 2 is in the reverse connection state, the processor 24 outputs a high-level signal from the second terminal Ub and a low-level signal from the first terminal Ua.

[0091] In some embodiments, the second detection circuit 21 further includes: a first capacitor connected in parallel with the sixth resistor R6; and a Zener diode ZD, the cathode of which is electrically connected to one end of the sixth resistor R6, and the anode of which is electrically connected to the other end of the sixth resistor R6.

[0092] For example, referring to Figure 9, if the controller 2 is in the positive connection state, the second detection circuit 21, which consists of the fifth resistor R5, the seventh diode D7, the sixth resistor R6, the first capacitor, and the Zener diode ZD, will output a positive connection detection signal (a high-level signal) to the processor 24. The first terminal Ua of the processor 24 will output a high-level signal, which will turn on the fifth switch Q5 (i.e., the first switch circuit 22 will be closed). Conversely, the second terminal Ub of the processor 24 will output a low-level signal, which will turn off the sixth switch Q6 (i.e., the second switch circuit 23 will be disconnected).

[0093] For example, referring to FIG10, if the controller 2 is in the reverse connection state, the second detection circuit 21, which is composed of the fifth resistor R5, the seventh diode D7, the sixth resistor R6, the first capacitor and the Zener diode ZD, will output the controller 2 reverse connection detection signal (a low level signal) to the processor 24. The first terminal Ua of the processor 24 will output a low level signal, causing the fifth switch Q5 to turn off (i.e. the first switch circuit 22 to turn off). Conversely, the second terminal Ub of the processor 24 will output a high level signal, causing the sixth switch Q6 to turn on (i.e. the second switch circuit 23 to close).

[0094] In addition, the processor is equipped with an RF receiver (not shown) to receive temperature control signals sent by the mobile app, so that the mobile app and the actual color temperature of the lamp are consistent.

[0095] Corresponding to the above embodiments, this application also proposes a track light.

[0096] Referring to Figure 11, the track light of this application includes the aforementioned control circuit.

[0097] It should be noted that the above explanation of the embodiments and beneficial effects of the track light control circuit also applies to the track lights of the present disclosure embodiments, and will not be elaborated in detail here to avoid redundancy.

[0098] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0099] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0100] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0101] Although embodiments of the present disclosure have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A control circuit for a track light, wherein, The track light includes a first track and a second track arranged accordingly, and a plurality of lamps and a controller connected across the first track and the second track. The plurality of lamps and the controller are electrically connected through the first track and the second track. Each lamp includes multiple light-emitting elements with different color temperatures. The control circuit includes: A first detection circuit and a gating circuit are provided in each of the lamps. The first detection circuit is used to detect the connection status of the lamp on the first track and the second track. The gating circuit is electrically connected to the first detection circuit, the plurality of light-emitting elements, the first track, and the second track, respectively, and is used to control each light-emitting element to connect to the first track or the second track based on the connection status; and / or, The controller includes a second detection circuit, multiple switching circuits, and a processor. Each of the multiple switching circuits corresponds to one of the multiple light-emitting elements, and each of the switching circuits is electrically connected to the first track or the second track. The second detection circuit is used to detect the connection status of the controller on the first track and the second track. The processor is electrically connected to the second detection circuit and the multiple switching circuits respectively, and is used to control the multiple switching circuits based on the connection status.

2. The circuit according to claim 1, wherein, The plurality of light-emitting elements includes a first light-emitting element and a second light-emitting element, and the gating circuit is used for: When the lamp is connected in the positive connection state, the first light-emitting element is controlled to connect with the first track, and the second light-emitting element is controlled to connect with the second track; When the lamp is connected in reverse, the first light-emitting element is connected to the first track, and the second light-emitting element is connected to the second track.

3. The circuit according to claim 2, wherein, The gating circuit includes: A first gating sub-circuit, wherein a first terminal of the first gating sub-circuit is electrically connected to the first light-emitting element, a second terminal of the first gating sub-circuit is adapted to be electrically connected to the first track, a third terminal of the first gating sub-circuit is electrically connected to the second light-emitting element, and a fourth terminal of the first gating sub-circuit is adapted to be electrically connected to the second track; wherein, in the positive connection state, the first terminal and the second terminal of the first gating sub-circuit are connected, and the third terminal and the fourth terminal are connected. The second gating sub-circuit has a first terminal electrically connected to the first light-emitting element, a second terminal adapted to be electrically connected to the second track, a third terminal electrically connected to the second light-emitting element, and a fourth terminal adapted to be electrically connected to the first track; wherein, in the reverse connection state, the first and second terminals of the second gating sub-circuit are connected, and the third and fourth terminals are connected.

4. The circuit according to claim 3, wherein, The first selection sub-circuit includes: a first switching transistor, a first diode, a second switching transistor, and a second diode. The first terminal of the first switching transistor is electrically connected to the first light-emitting element, and the second terminal of the first switching transistor is connected to the... The anode of the first diode is electrically connected, and the cathode of the first diode is adapted to be connected to the first track; The first end of the second switching transistor is electrically connected to the second light-emitting element, the second end of the second switching transistor is electrically connected to the anode of the second diode, and the cathode of the second diode is adapted to be connected to the second track; The control terminals of the first and second switching transistors are respectively electrically connected to the first output terminal of the first detection circuit. The first output terminal is used to output a positive connection control signal corresponding to the positive connection state.

5. The circuit according to claim 3, wherein, The second selection sub-circuit includes: a third switch, a third diode, a fourth switch, and a fourth diode. The first end of the third switch is electrically connected to the first light-emitting element, the second end of the third switch is electrically connected to the anode of the third diode, and the cathode of the third diode is adapted to be connected to the second track; The first end of the fourth switching transistor is electrically connected to the second light-emitting element, the second end of the fourth switching transistor is electrically connected to the anode of the fourth diode, and the cathode of the fourth diode is adapted to be connected to the first track; The control terminals of the third and fourth switching transistors are electrically connected to the second output terminal of the first detection circuit, and the second output terminal is used to output a reverse connection control signal corresponding to the reverse connection state.

6. The circuit according to any one of claims 1-5, wherein, The positive and negative terminals of the plurality of lamps are electrically connected to the first rail and the second rail to draw power through the first rail and the second rail. The first detection circuit is used to detect the connection status of the positive and negative terminals of the lamps as the connection status of the lamps.

7. The circuit according to claim 6, wherein, The first detection circuit includes: The first detection sub-circuit is electrically connected to the positive and negative terminals of the lamp and the gating circuit respectively, and is used to output a positive connection control signal when the positive and negative terminal connection state is detected to be positive connection. The second detection sub-circuit is electrically connected to the positive and negative terminals of the lamp and the gating circuit, respectively, and is used to output a reverse connection control signal when the positive and negative terminal connection state is detected to be reversed.

8. The circuit according to claim 7, wherein, The first detection sub-circuit includes: A first resistor, one end of which is electrically connected to the positive terminal of the lamp; The fifth diode, the anode of which is electrically connected to the other end of the first resistor, and the connection point serves as the first output terminal of the first detection circuit to output the positive control signal; The second resistor has one end electrically connected to the cathode of the fifth diode and the other end electrically connected to the negative terminal of the lamp.

9. The circuit according to claim 7, wherein, The second detection sub-circuit includes: A third resistor, one end of which is electrically connected to the positive terminal of the lamp; The sixth diode, the cathode of which is electrically connected to the other end of the third resistor; A fourth resistor, one end of which is electrically connected to the anode of the sixth diode, and the connection point serves as the second output terminal of the first detection circuit, outputting the reverse connection control signal; the other end of the fourth resistor is connected to the lamp... Negative electrical connection.

10. The circuit according to claim 1, wherein, The plurality of light-emitting elements include a first light-emitting element and a second light-emitting element; the plurality of switching circuits include a first switching circuit and a second switching circuit; the processor is used to: When the controller is in the positive connection state, the first switch circuit is closed to make the first light-emitting element light up, or the second switch circuit is closed to make the second light-emitting element light up. When the controller is in a reverse connection state, the second switch circuit is closed to make the first light-emitting element light up, or the first switch circuit is closed to make the second light-emitting element light up.

11. The circuit according to claim 10, wherein, The first switching circuit includes: The fifth switch has a first end adapted to connect to the first track or the second track, a second end grounded, and a control terminal electrically connected to the first terminal of the processor.

12. The circuit according to claim 10, wherein, The second switching circuit includes: A sixth switch transistor, the first end of which is adapted to be connected to the first rail or the second rail, the second end of which is grounded, and the control terminal of which is electrically connected to the second terminal of the processor.

13. The circuit according to claim 1, wherein, The positive and negative terminals of the controller are electrically connected to the first and second tracks to draw power through the first and second tracks. The second detection circuit is used to detect the connection status of the positive and negative terminals of the controller as the connection status of the controller.

14. The circuit according to claim 13, wherein, The second detection circuit includes: The fifth resistor, one end of which is electrically connected to the positive terminal of the controller; The seventh diode, the anode of which is electrically connected to the other end of the fifth resistor; The sixth resistor has one end electrically connected to the cathode of the seventh diode, and the connection point serves as the output terminal of the second detection circuit, outputting a detection signal corresponding to the connection state of the controller. The other end of the sixth resistor is grounded.

15. The circuit according to claim 14, wherein, The second detection circuit also includes: A first capacitor, which is connected in parallel with the sixth resistor; A Zener diode, wherein the cathode of the Zener diode is electrically connected to one end of the sixth resistor, and the anode of the Zener diode is electrically connected to the other end of the sixth resistor.

16. A track light, wherein, Includes the control circuit according to any one of claims 1-15.

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