Lighting device and system

Abstract

The utility model provides a lighting device and system, and relates to the technical field of lighting devices. The lighting device is connected with a power supply device, and the power supply device comprises a plurality of output states. The lighting device comprises a power supply switching module and a voltage transformation module; the power supply device is connected with the power switching module and the voltage transformation module, and the voltage transformation module is further used for being connected with the lighting module. Wherein the power supply switching module comprises a plurality of working states; each working state corresponds to the output state of one power supply device; the power supply switching module is used for selecting corresponding output states when the power supply switching module is in different working states; the voltage transformation module is used for boosting the voltage output by the power supply device so as to supply power to the lighting module. According to the lighting device and the lighting system provided by the utility model, the input voltage of the lighting device can be adaptively adjusted, namely the wide voltage output of the power supply device can be adaptively adjusted, and the maximum output power can be matched, so that the brightness and the service power of the lighting device can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting devices, and in particular to a lighting device and a system. Background Art

[0002] In the prior art, most of the power supply interfaces of lighting devices use the old Universal Serial Bus (USB), such as the Standard Type-A USB, and a small number use the Micro Type-B USB. However, the output current of both the Standard Type-A USB and the Micro Type-B USB is relatively small, resulting in insufficient output power for the lighting device to reach a preset power or preset brightness.

[0003] Based on this, the prior art urgently needs a lighting device to improve the brightness and power usage of the lighting device. Utility Model Content

[0004] The purpose of the utility model is to provide a lighting device and system, which can adaptively adjust the input voltage of the lighting device, that is, adaptively adjust the wide-voltage output of the power supply device to match the maximum output power, so as to improve the brightness and power usage of the lighting device.

[0005] The utility model provides a technical solution:

[0006] On the one hand, the utility model provides a lighting device, the lighting device is connected to a power supply device, the power supply device includes multiple output states; the lighting device includes: a power switching module, a transformer module; the power supply device is respectively connected to the power switching module and the transformer module, and the transformer module is also used to connect the lighting module;

[0007] The power switching module includes multiple working states; each working state corresponds to an output state of a power supply device; the power switching module is used to select the corresponding output state when in different working states;

[0008] The voltage transformation module is used to boost the voltage output by the power supply device to supply power to the lighting module.

[0009] Preferably, the power switching module includes at least one control unit, and a control end of the control unit is connected to the power supply device to provide a control signal, switch the output state of the power supply device, and select a corresponding output state;

[0010] Wherein, the control unit includes multiple working states.

[0011] Preferably, the power switching module further comprises a sampling unit, and an output end of the sampling unit is connected to a feedback end of the control unit;

[0012] The sampling unit is used to collect the voltage corresponding to the current output state of the power supply device and feed it back to the control unit.

[0013] Preferably, the power switching module also includes a power input unit and a voltage stabilizing unit, and the power input unit is connected to the power supply device and the voltage stabilizing unit respectively; the voltage stabilizing unit is also connected to the power supply end of the control unit to provide a power supply voltage for the control unit.

[0014] Preferably, the power input unit includes a Type-C interface.

[0015] Preferably, when the power supply device includes a lighting module, the input end of the voltage transformation module is connected to the output end of the power supply device; and the output end of the voltage transformation module is connected to the lighting module.

[0016] Preferably, the lighting device further comprises a lighting module, and the lighting module comprises a plurality of light emitting diodes connected in series.

[0017] Preferably, the lighting device further comprises: a flicker control module, the flicker control module is connected to the voltage transformation module, and the flicker control module is also used to connect to the lighting module, wherein the flicker control module comprises a plurality of flicker states to switch the flicker mode of the lighting module.

[0018] On the other hand, the utility model provides a lighting system, comprising a power supply device and the lighting device described in any one of the first aspects above; the power supply device is electrically connected to the lighting device.

[0019] The beneficial effects of the lighting device and system provided by the utility model are:

[0020] Provided are a lighting device and system, wherein the lighting device is connected to a power supply device, and the power supply device includes a plurality of output states. The lighting device includes a power switching module and a transformer module; the power supply device is respectively connected to the power switching module and the transformer module, and the transformer module is also used to connect the lighting module. The power switching module includes a plurality of working states; and each working state corresponds to an output state of the power supply device. The power switching module is used to select a corresponding output state when in different working states; the transformer module is used to boost the voltage output by the power supply device to power the lighting module. The lighting device and system provided by the utility model can adaptively adjust the output voltage of the power supply to match the output power of the lighting module; and the output voltage of the power supply is increased by the transformer module to improve the brightness and power usage of the lighting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the structure of the lighting system provided by the utility model;

[0023] Figure 2 This is one of the structural schematic diagrams of the lighting device provided by the utility model;

[0024] Figure 3 This is one of the structural schematic diagrams of the power switching module in the utility model;

[0025] Figure 4 This is the second structural diagram of the power switching module in the utility model;

[0026] Figure 5 This is a schematic diagram of the circuit principle of the power switching module in the utility model;

[0027] Figure 6 This is the third structural diagram of the power switching module in the utility model;

[0028] Figure 7 This is a schematic diagram of the circuit principle of the voltage conversion module in the utility model;

[0029] Figure 8 This is a schematic diagram of the circuit principle of the lighting module in the utility model;

[0030] Fig. 9 The second structural schematic diagram of the lighting device provided by the utility model;

[0031] Fig.10 It is a structural schematic diagram of the flashing control module in the utility model;

[0032] Fig.11 This is a schematic diagram of the circuit principle of the flashing control module in the utility model;

[0033] Fig.12 This is a schematic diagram of the circuit principle of the switch unit in the utility model;

[0034] Fig.13 This is an exploded view of the lighting device provided by the utility model.

[0035] Icons: 100- lighting system; 200- lighting device; 300- power supply device; 400- lighting equipment; 201- power switching module; 202- voltage transformation module; 203- lighting module; 1001- control unit; 1002- power input unit; 1003- voltage stabilizing unit; 1004- sampling unit; 204- flashing control module; 401- flashing control unit; 402- switch unit; 1- front cover; 2- back cover; 3- control circuit board; 4- switch button; 5- Type-C wire; 6- LED light string. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the description of the present utility model, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.

[0040] Furthermore, the terms “first”, “second”, “third”, etc. are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] As described in the background technology, in the lighting field, most lighting products use USB interfaces, such as Type-A interfaces and Micro-USB interfaces, as power supply interfaces. However, since the above-mentioned USB interfaces generally have problems such as low output current and insufficient output power, the power and brightness of the lighting products are limited.

[0043] Based on this, an embodiment of the utility model provides a lighting solution, which adaptively adjusts the output voltage of the power supply through a power switching module to match the output power of the lighting module; and increases the power supply voltage of the lighting module through a transformer module to improve the brightness and power usage of the lighting device.

[0044] The technical solutions provided by the embodiments of the present utility model will be described in detail below.

[0045] In one embodiment, see Figure 1 The embodiment of the utility model provides a lighting system 100, which includes a lighting device 200 and a power supply device 300; the lighting device 200 is electrically connected to the power supply device 300. The power supply device 300 includes multiple output states, and the lighting device 200 selects the corresponding output state according to its own working state and adjusts the voltage of the current output state to avoid affecting its own brightness and power due to insufficient output power of the interface of the power supply device 300.

[0046] In one embodiment, please refer to Figure 2 , a lighting device 200 is provided, the lighting device 200 is connected to a power supply device 300, and the power supply device 300 includes multiple output states. The lighting device 200 includes: a power switching module 201 and a transformer module 202; the power supply device 300 is connected to the power switching module 201 and the transformer module 202 respectively, and the transformer module 202 is also used to connect the lighting module 203.

[0047] In this embodiment, the power switching module 201 includes multiple working states, and each working state corresponds to an output state of the power supply device 300. The power switching module 201 is used to select the corresponding output state when in different working states.

[0048] Among them, the working state of the power switching module 201 corresponds to different working powers or working voltages, so that under different working powers or working voltages, the power switching module 201 outputs different control signals to the power supply device 300, switches the output state of the power supply device 300, selects the corresponding output state, and supplies power to the transformer module 202 and / or the lighting module 203 set at the back end. In this embodiment, the working power is taken as an example. Under each working power, different voltage gears and current gears will correspond respectively. If the working power corresponding to the current state is 60W, the corresponding voltage gear can be 20V, and the current gear can be 3A. In the current working state, the voltage output gear of the power supply device 300 that needs to be selected is 20V.

[0049] Please continue to refer to Figure 2 In order to better adjust the brightness and power usage of the lighting device 200, the lighting device 200 in this embodiment further includes a transformer module 202, which is used to boost the voltage output by the power supply device 300 to supply power to the lighting module 203. When the power supply device 300 includes the lighting module 203, the input end of the transformer module 202 is connected to the output end of the power supply device 300; and the output end of the transformer module 202 is connected to the lighting module 203.

[0050] In one possible implementation method, the transformer module 202 receives the currently selected 20V voltage and performs a voltage boost process on the 20V voltage to provide a voltage greater than 20V to power the lighting module 203 to ensure the brightness and power usage of the lighting device 200.

[0051] In this embodiment, please refer to Figure 3 The power switching module 201 includes at least one control unit 1001. The control end of the control unit 1001 is connected to the power supply device 300 to provide a control signal, switch the output state of the power supply device 300, and select the corresponding output state; wherein the control unit 1001 includes multiple working states.

[0052] Specifically, the control unit 1001 can send a control signal to the power supply device 300 according to its own working state, such as the set working power, etc., to switch the output state of the power supply device 300, so as to select the corresponding output state and supply power to the transformer module 202 and / or the lighting module 203 set at the back end. For example, the control unit 1001 can set different control signals, each of which corresponds to an output state of the power supply device 300. For example, when the control signal output by the control unit 1001 is 00, it can correspond to the output state of the output voltage of the power supply device 300 being 5V.

[0053] In one possible implementation method, the control unit 1001 may be a control chip, which is integrated with a power receiving control scheme that supports the fast charging protocol, for example, a PD2.0 / PD3.0 / FCP / SCP / QC2.0 / QC3.0 / Samsung AFC fast charging protocol scheme that can support multiple gear voltage outputs. In this embodiment, the control unit 1001 may be an XSP08A chip, which is integrated with the above-mentioned fast charging protocol scheme; the above-mentioned chip also supports voltages such as 5V, 9V, 12V, 15V and 20V. When the control unit 1001 is controlled by the above-mentioned control chip, this embodiment can also automatically match the corresponding optimal voltage gear and current gear according to different working powers or working voltages, so that different control signals are output to the power supply device 300 under different working powers or working voltages to switch the output state of the power supply device 300, so as to select the corresponding output state, thereby providing a power supply voltage for the rear-end boost module or lighting module 203. The best voltage and current ranges are selected by matching the output state of a power supply device 300 that is closest to or the same as the output state of the current control unit 1001 .

[0054] To further ensure the communication between the control unit 1001 and the power supply device 300, in this embodiment, please refer to Figure 4 The power switching module 201 further includes a power input unit 1002 and a voltage stabilizing unit 1003. The power input unit 1002 is connected to the power supply device 300 and the voltage stabilizing unit 1003 respectively; the voltage stabilizing unit 1003 is also connected to the power supply terminal of the control unit 1001 to provide a power supply voltage for the control unit 1001.

[0055] In this embodiment, the power input unit 1002 is connected to the output end of the power supply device 300, and can provide a power supply voltage for the voltage stabilizing unit 1003 and the control unit 1001 arranged at the back end. In a possible implementation method, the power input unit 1002 can use a Type-C interface, for example, a Type-C male socket.

[0056] The voltage stabilizing unit 1003 can convert the power supply voltage input by the power input unit 1002 into a preset voltage to provide a stable power supply voltage for the control unit 1001. For example, the voltage stabilizing unit 1003 can convert the output voltage of the power supply device 300 into 3.3V to power the control chip. In this embodiment, the voltage stabilizing unit 1003 can also be a voltage stabilizing chip, such as an LD0 voltage stabilizing chip. Please refer to Figure 5 , Figure 5A circuit schematic diagram of a power switching module 201 is provided. The second pin of the voltage regulator chip U1 is grounded; the first pin is used as the input end of the voltage regulator chip U1, and is respectively connected to the third capacitor C3 and the output end of the power input unit 1002; the third pin is used as the output end of the voltage regulator chip U1, and is respectively connected to the power end of the control chip IC2 (the first pin of the control chip IC2) and the fourth capacitor C4.

[0057] Further, to further detect whether the output state of the power supply device 300 satisfies the current working state of the voltage switching module (or the control unit 1001), please refer to Figure 6 The power switching module 201 further includes a sampling unit 1004, whose output terminal is connected to the feedback terminal of the control unit 1001. In this embodiment, the sampling unit 1004 is used to collect the voltage corresponding to the current output state of the power supply device 300 and feed it back to the control unit 1001.

[0058] In one possible implementation, please refer to Figure 5 The sampling unit includes a third resistor R3 and a fourth resistor R4. The first end of the third resistor R3 serves as a sampling end and is connected to the output end of the power supply device 300 for collecting the voltage corresponding to the current output state of the power supply device 300. The second end of the third resistor R3 is respectively connected to the first end of the fourth resistor R4 and the feedback end (the sixth pin) of the control chip IC2 to feed back the collected voltage to the control unit 1001.

[0059] Please continue to refer to Figure 5 In this embodiment, the control unit 1001 can complete the data exchange with the power supply device 300 by adjusting the second pin (CC1), the third pin (DPC), the fifth pin (DPM) and the seventh pin (CC2) of the control chip IC2 to match the current working state, so as to automatically determine the voltage range and the current range corresponding to the current working state, so as to switch to the corresponding output state of the power supply device 300. In a possible implementation method, the power supply device 300 may include a Type-C female socket and a power supply unit, wherein the power input unit 1002 in this embodiment can be connected to the power supply unit through the Type-C female socket, wherein the power supply unit provides a stable input power supply for the lighting device 200, and the Type-C female socket exchanges data with the control unit 1001, for example, data can be exchanged through the second pin (CC1), the third pin (DPC), the fifth pin (DPM) and the seventh pin (CC2) of the above-mentioned control chip IC2, so as to switch to the selected output state according to the control signal provided by the control unit 1001. In this embodiment, the circuit structure or function of the power supply device 300 is not limited, as long as it can provide different output states of the power supply device 300 .

[0060] In this embodiment, please refer to Figure 7 In a possible implementation method, the voltage transformation module 202 includes a first resistor R1, a first capacitor C1, a second resistor R2, a first switch tube Q1, a first inductor L1, a first diode D1 and a second capacitor C2.

[0061] The first end of the first resistor R1 is connected to the first end of the first capacitor C1; the second end of the first resistor R1 is respectively connected to the second end of the first capacitor C1, the control end of the first switch tube Q1, and the first end of the second resistor R2; the second end of the second resistor R2 is grounded; the first end of the first switch tube Q1 is respectively connected to the first end of the first inductor L1 and the first end of the first diode D1; the second end of the first diode D1 is connected to the first end of the second capacitor C2; the second end of the second capacitor C2 is grounded; the second end of the first inductor L1 is connected to the power supply device 300. The first end of the first resistor R1 can be used as the control end of the transformer module 202 to adjust the boost amplitude of the transformer module 202. In a possible implementation method, the first end of the first resistor R1 can be connected to a control module to adjust the duty cycle of the transformer module 202 through the control module outputting a control signal.

[0062] In a possible implementation method, the lighting device 200 further includes a lighting module 203, and the lighting module 203 includes a plurality of light emitting diodes connected in series.

[0063] In this embodiment, a plurality of light emitting diodes connected in series in the lighting module 203 are arranged in a matrix. Figure 8 , several light-emitting diodes are arranged in a head-to-tail manner to form multiple light-emitting sub-chains arranged in a column direction, wherein the cathode of the previous light-emitting diode is connected to the anode of the next light-emitting diode. Multiple light-emitting sub-chains are connected in parallel to form a light-emitting matrix. In one possible implementation method, the conduction order of adjacent light-emitting sub-chains in the matrix is ​​opposite, please continue to refer to Figure 8 , M is the number of columns of the light-emitting matrix, and the conduction order of the light-emitting sub-chain with the number of columns M=1 in the light-emitting matrix is ​​opposite to that of the light-emitting sub-chain with the number of columns M=2 in the light-emitting matrix.

[0064] It should be noted that Figure 8 It shows that the light-emitting sub-chains arranged in columns are omitted. For example, the ellipsis between the light-emitting sub-chain in the even column numbered M=2 and the light-emitting sub-chain in the odd column numbered 2M-1 indicates that there may be light-emitting sub-chains arranged in columns between the light-emitting sub-chain in the even column numbered M=2 and the light-emitting sub-chain in the odd column numbered 2M-1.

[0065] For further information, please refer to Fig. 9In this embodiment, the lighting device 200 may also include: a flicker control module 204, the flicker control module 204 is connected to the transformer module 202, and the flicker control module 204 is also used to connect to the lighting module 203, wherein the flicker control module 204 includes multiple flicker states to switch the flicker mode of the lighting module 203.

[0066] In one possible implementation, see Fig.10 The flicker control module 204 at least includes a flicker control unit 401 and a switch unit 402 including at least a plurality of switch tubes; the output end of the flicker control unit 401 is connected to the control end of each switch tube to output a flicker control signal to switch the on or off state of the switch tube; the output end of each switch tube is connected to the lighting module 203.

[0067] In this embodiment, please refer to Fig.11 The flicker control unit 401 can be a flicker control chip PC1, wherein the sixth pin of the flicker control chip PC1 and the seventh pin of the flicker control chip PC1 serve as output ends of the flicker control unit 401, and are connected to the control ends of each switch tube to output a flicker control signal to drive the switch unit 402 to be turned on or off.

[0068] The fourth pin (feedback end) of the flicker control chip PC1 can be connected to the first end of a switch S1 and the first end of the fifth resistor R5; the second end of the switch S1 is grounded; the second end of the fifth resistor R5 is respectively connected to the input end of the 3.3V power supply, the first end of the fourth capacitor C4, the first pin of the flicker control chip PC1 and the third pin of the flicker control chip PC1; the second end of the fourth capacitor C4 is grounded. The switch S1 is connected to the feedback end of the flicker control chip PC1, and the feedback input of the flicker control chip PC1 can be switched according to the switch S1, and the control output end (the seventh pin and the sixth pin) of the flicker control unit 401 can be adjusted accordingly to adjust the type of the flicker control signal to support multiple flicker modes.

[0069] The flicker control chip PC1 can also adjust the duty cycle of the voltage conversion module 202 through a burned program. In a possible implementation method, the fifth pin of the flicker control chip PC1 can be connected to the above Figure 7 The control end of the middle voltage transformation module 202, ie, the first end of the first resistor R1, is connected to provide a control signal to adjust the duty cycle of the voltage transformation module 202 and change the voltage boosting degree.

[0070] It should be noted that in this embodiment, the flicker control method or the duty cycle control method is not limited, and various flicker control methods or duty cycle control methods in the prior art can be burned on the flicker control chip PC1 to obtain different flicker control signals and different voltage values ​​corresponding to the boosted voltage. In this embodiment, the duty cycle of the transformer module 202 can be fixed, and only by adjusting the switch S1, different potential signals, such as 00, 01 and other types of electrical signals, are output to switch the control signal output of the flicker control chip PC1.

[0071] Please refer to Fig.12 , the switch unit 402 can be formed of four switch tubes in the form of a bridge circuit to drive the non-polar lighting module 203. Specifically, the switch unit 402 includes a second switch tube Q2, a third switch tube Q3, a fourth switch tube Q4, a fifth switch tube Q5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10 and an eleventh resistor R11; wherein the control end of the second switch tube Q2 is respectively connected to the first end of the sixth resistor R6 and the first end of the seventh resistor R7; the second end of the seventh resistor R7 is connected to the first end of the second switch tube Q2, the first end of the third switch tube Q3, the first end of the eighth resistor R8 and the output end of the transformer module 202; the control end of the third switch tube Q3 is respectively connected to the first end of the seventh resistor R7; the second end of the seventh resistor R7 is connected to the first end of the second switch tube Q2, the first end of the third switch tube Q3, the first end of the eighth resistor R8 and the output end of the transformer module 202; the control end of the third switch tube Q3 is respectively connected to the first end of the seventh resistor R7; the control end of the fifth switch tube Q5 is respectively connected to the first end of the sixth resistor R6 and ... The second end of the eighth resistor R8 is connected to the first end of the ninth resistor R9; the second end of the sixth resistor R6 is connected to the second end of the third switch tube Q3 and the first end of the fourth switch tube Q4; the second end of the ninth resistor R9 is connected to the first end of the fifth switch tube Q5 and the second end of the second switch tube Q2; the second end of the fifth switch tube Q5 and the second end of the fourth switch tube Q4 are grounded; the control end of the fifth switch tube Q5 is connected to the seventh pin (L2) of the flashing control chip PC1 through the tenth resistor R10; the control end of the fourth switch tube Q4 is connected to the sixth pin (L3) of the flashing control chip PC1 through the eleventh resistor R11. Among them, the second end of the second switch tube Q2 and the second end of the third switch tube Q3 are connected as the output end of the switch unit 402 to the input end of the lighting module 203 to respectively control the flashing mode of each column-arranged sub-chain in the lighting module 203.

[0072] In summary, this embodiment provides a lighting device, which is connected to a power supply device, and the power supply device includes multiple output states. The lighting device includes a power switching module and a transformer module; the power supply device is connected to the transformer module and the power switching module respectively. Among them, the power switching module includes multiple working states; and each working state corresponds to an output state of the power supply device; the power switching module is used to select the corresponding output state when in different working states; the transformer module is used to boost the corresponding voltage of the output state to power the lighting module. The lighting device can adaptively adjust the input voltage of the lighting device, adjust the wide voltage output of the power supply device, match the working state of the lighting device, and increase the output voltage of the power supply device through the transformer module to improve the brightness and power usage of the lighting device.

[0073] According to the idea of ​​the above embodiment, the power switching module 201 and the voltage transformation module 202 can be integrated into a control circuit board. The utility model also provides a lighting device 400, please refer to Fig.13 , including a device housing, a control circuit board 3 arranged inside the device housing, a power input unit 1002 and a lighting module 203, wherein the control circuit board 3 is connected to the power input unit 1002 and the lighting module 203 respectively.

[0074] For a possible method, please continue to refer to Fig.13 The device housing includes a front cover 1 and a rear cover 2. In this embodiment, the front cover 1 and the rear cover 2 can be fixed by screws to form a closed space to protect the control circuit board 3 from external influences. The power input unit can use a Type-C wire 5. The lighting module can use an LED light string 6. Among them, a switch button 4 is also provided on the front cover 1 to turn on or off the current transmission between the power supply device 300 and the lighting device 400.

[0075] The lighting device provided in this embodiment includes all the technical features and technical effects of the above-mentioned lighting device, and can adaptively adjust the output voltage of the power supply to match the output power of the lighting module; and increase the output voltage of the power supply through the transformer module to improve the brightness and power usage of the lighting device.

[0076] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A lighting device, the lighting device is connected to a power supply device, the power supply device includes multiple output states; characterized in that: The lighting device comprises: a power switching module and a voltage transformation module; the power supply device is connected to the power switching module and the voltage transformation module respectively, and the voltage transformation module is also used to connect to the lighting module; The power switching module includes multiple working states; each working state corresponds to an output state of a power supply device; the power switching module is used to select the corresponding output state when in different working states; The voltage transformation module is used to boost the voltage output by the power supply device to supply power to the lighting module.

2. The lighting device according to claim 1, characterized in that: The power switching module at least includes a control unit, the control end of which is connected to the power supply device to provide a control signal, switch the output state of the power supply device, and select the corresponding output state; Wherein, the control unit includes multiple working states.

3. The lighting device according to claim 2, characterized in that: The power switching module further comprises a sampling unit, the output end of the sampling unit is connected to the feedback end of the control unit; The sampling unit is used to collect the voltage corresponding to the current output state of the power supply device and feed it back to the control unit.

4. The lighting device according to claim 2, characterized in that: The power switching module also includes a power input unit and a voltage stabilizing unit. The power input unit is connected to the power supply device and the voltage stabilizing unit respectively. The voltage stabilizing unit is also connected to the power supply end of the control unit to provide a power supply voltage for the control unit.

5. The lighting device according to claim 4, characterized in that: The power input unit includes a Type-C interface.

6. The lighting device according to claim 1 or 2, characterized in that: When the power supply device includes a lighting module, the input end of the voltage transformation module is connected to the output end of the power supply device; and the output end of the voltage transformation module is connected to the lighting module.

7. The lighting device according to claim 1, characterized in that: The lighting device further comprises a lighting module, wherein the lighting module comprises a plurality of light emitting diodes connected in series.

8. The lighting device according to claim 1, characterized in that: The lighting device further comprises: a flicker control module, the flicker control module is connected to the voltage transformation module, and the flicker control module is also used to connect to the lighting module, wherein the flicker control module comprises a plurality of flicker states to switch the flicker mode of the lighting module.

9. A lighting system, characterized in that: It comprises a power supply device and the lighting device according to any one of claims 1 to 8; the power supply device is electrically connected to the lighting device.

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