Low-power-consumption intelligent power supply circuit and lamp

Abstract

The utility model discloses a low-power-consumption intelligent power supply circuit and a lamp. The low-power-consumption intelligent power supply circuit comprises a power supply module, a driving module, a switch control module and a main control chip. One end of the power supply module is connected with a mains supply circuit, and the other end of the power supply module is connected with the driving module through the switch control module; the driving module is used for connecting a light-emitting device; the main control chip is connected with the switch control module and the driving module, and is used for controlling the switch control module to be switched on and controlling the driving module to output a driving signal to the light-emitting device so as to enable the light-emitting device to work when a starting signal is detected, and controlling the driving module to output a driving signal to the light-emitting device so as to enable the light-emitting device to work when the starting signal is not detected. And the switch control module is controlled to be switched off. According to the low-power-consumption intelligent power supply circuit, the switch control module is added between the power supply module and the driving module, so that power supply to the driving module can be stopped in a standby state, the total power consumption of the circuit is reduced, and electric energy is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a lamp technical field especially, it relates to a low -power intelligent power supply circuit and lamps and lanterns. BACKGROUND

[0002] In recent years, under the drive of the Internet of Things and artificial intelligence technology, the smart home industry has entered a period of rapid development.

[0003] The existing lamps and lanterns applied in the smart home scene are usually provided with an intelligent power supply circuit, which is loaded with a corresponding communication or intelligent identification chip, can make corresponding start -stop dimming action based on the network instruction issued by the user, or voice control, gesture instruction etc. realizes intelligent control. In order to identify the start signal initiated by the user through various ways in time, quickly points out the light emitting device, when the light emitting device is in the off state, the intelligent power supply circuit in the lamps and lanterns will also be in standby state, and the main control chip and driving module in the circuit will not be disconnected power. Therefore, when the lamps and lanterns are not used for a long time, the standby state will also consume more power, causing power waste. UTILITY MODEL CONTENTS

[0004] The utility model embodiment provides a low -power intelligent power supply circuit and lamps and lanterns to solve the problem that the existing intelligent power supply circuit still consumes more power when standby, causes the problem of power waste.

[0005] The utility model embodiment provides a low -power intelligent power supply circuit, including power module, driving module, switch control module and main control chip;

[0006] One end of the power module is used for connecting the mains circuit, and the other end is connected with the driving module through the switch control module;

[0007] The driving module is used for connecting the light emitting device;

[0008] The main control chip is connected with the switch control module and the driving module, is used for when detecting the start signal, control the switch control module is turned on, and control the driving module is outputted driving signal to the light emitting device, to make the light emitting device work, when not detecting the start signal, control the switch control module is disconnected.

[0009] Preferably, the switch control module includes first control pipe and second control pipe;

[0010] The first end of the first control pipe is connected with the power module, and the second end of the first control pipe is connected with the driving module;

[0011] The first end of the second control tube is connected with the third end of the first control tube, the second end of the second control tube is grounded, and the third end of the second control tube is connected with the main control chip.

[0012] Preferably, the switch control module further comprises a first resistor, a second resistor, a third resistor, a fourth resistor and a first capacitor.

[0013] The first end and the third end of the first control tube are connected with the two ends of the first resistor respectively.

[0014] The third end of the first control tube and the first end of the second control tube are connected with the two ends of the second resistor respectively.

[0015] The second end and the third end of the second control tube are connected with the two ends of the third resistor respectively.

[0016] The third end of the second control tube and the main control chip are connected with the two ends of the fourth resistor respectively.

[0017] The second end and the third end of the second control tube are connected with the two ends of the first capacitor respectively.

[0018] Preferably, the low-power intelligent power supply circuit further comprises an alternating current detection module.

[0019] The first end of the alternating current detection module is connected with the connection node of the power supply module and the mains circuit.

[0020] The second end of the alternating current detection module is connected with the main control chip, and is used for outputting an alternating current detection signal to the main control chip.

[0021] The main control chip is used for controlling the driving module to work according to the alternating current detection signal.

[0022] Preferably, the alternating current detection module comprises a reset chip and an optocoupler unit.

[0023] The first end of the reset chip is connected with the connection node of the power supply module and the mains circuit, the second end of the reset chip is connected with the input end of the optocoupler unit, and the output end of the optocoupler unit is connected with the main control chip.

[0024] Preferably, the driving module comprises a voltage reduction unit and a driving unit.

[0025] The voltage reduction unit is connected with the power supply module and the driving unit, and is used for performing voltage reduction processing on the power supply voltage output by the power supply module.

[0026] The driving unit is connected with the main control chip, and is further used for connecting a light emitting device, and is used for controlling the light emitting device to work under the control of the main control chip.

[0027] Preferably, the voltage reduction unit comprises a voltage reduction chip, a first diode, a first inductor and a second capacitor;

[0028] The first end of the voltage reduction chip is connected with the power module, and the second end of the voltage reduction chip is connected with the driving unit through the first inductor;

[0029] The cathode of the first diode is connected with a connection node between the voltage reduction chip and the first inductor, and the anode of the first diode is grounded;

[0030] The first end of the second capacitor is connected with a connection node between the first inductor and the driving unit, and the second end of the second capacitor is grounded.

[0031] Preferably, the driving unit comprises at least one light adjustment chip;

[0032] The first end of each light adjustment chip is connected with the voltage reduction unit;

[0033] The second end of each light adjustment chip is used for connecting a light emitting device with different light source properties;

[0034] The third end of each light adjustment chip is connected with the master control chip, and is used for adjusting the power of the light emitting device under the control of the master control chip.

[0035] Preferably, the power module comprises a rectification unit, a transformer unit and a secondary rectification filter unit;

[0036] One end of the rectification unit is used for connecting a mains circuit, and the other end is connected with the primary side of the transformer unit;

[0037] The secondary side of the transformer unit is connected with the first end of the secondary rectification filter unit, and the second end of the secondary rectification filter unit is connected with the driving module.

[0038] The utility model embodiment further provides a lamp, including light emitting device and above any one low power consumption's intelligent power supply circuit of the intelligent power supply circuit;

[0039] The low power consumption's intelligent power supply circuit is connected with the light emitting device, and is used for controlling the light emitting device to work.

[0040] The low power consumption's intelligent power supply circuit and the lamp provided by the utility model embodiment can stop power supply for the driving module in standby state, reduce the overall power consumption of the circuit, and save electric energy. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description only some embodiments of the present application, for those skilled in the art, without creative labor, can also obtain other drawings according to these drawings.

[0042] Figure 1 is a block diagram structure schematic diagram of the low-power intelligent power supply circuit in an embodiment of the present application;

[0043] Figure 2 is a circuit structure schematic diagram of the low-power intelligent power supply circuit in an embodiment of the present application;

[0044] Figure 3 is another circuit structure schematic diagram of the low-power intelligent power supply circuit in an embodiment of the present application.

[0045] In the figure: 1, power module; 11, rectifier unit; 12, transformer unit; 13, secondary rectifier filter unit; 2, drive module; 21, voltage reduction unit; 22, drive unit; 3, switch control module; 4, main control chip; 5, mains circuit; 6, light emitting device; 7, AC detection module. DETAILED DESCRIPTION

[0046] The technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0047] It should be understood that the present application can be implemented in different forms, and should not be interpreted as being limited to the embodiments presented here. On the contrary, the presentation of these embodiments will make the disclosure complete and complete, and will fully convey the scope of the present application to those skilled in the art. In the drawings, in order to be clear, the size and relative size of the layers and regions may be exaggerated throughout the same drawings. The same reference signs represent the same elements.

[0048] It will be understood that when an element or layer is referred to as being "on", "adjacent", "connected to", or "coupled to" another element or layer, it can be directly on, adjacent, connected or coupled to the other element or layer, or intervening elements or layers can be present. In contrast, when an element is referred to as being "directly on", "directly adjacent", "directly connected to", or "directly coupled to" another element or layer, there are no intervening elements or layers present. It will be understood that, although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present application.

[0049] Spatially relative terms, such as "beneath", "below", "lower", "under", "above", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0050] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising", when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0051] For a thorough understanding of the present application, reference will be made to the following detailed description, in conjunction with the accompanying drawings, in which: The preferred embodiments of the present application will be described in detail below with reference to the drawings. However, the present application can have other embodiments in addition to the detailed description.

[0052] The utility model discloses an embodiment further provide a kind of low-power intelligent power supply circuit, including power module 1, drive module 2, switch control module 3 and main control chip 4;The one end of power module 1 is used to connect mains circuit 5, the other end is connected with drive module 2 by switch control module 3;Drive module 2 is used to connect light emitting device 6;Main control chip 4 is connected with switch control module 3 and drive module 2, for when detecting opening signal, control switch control module 3 conduction, and control drive module 2 to light emitting device 6 output drive signal, to make light emitting device 6 work;When not detecting opening signal, control switch control module 3 disconnect.

[0053] As an example, the low-power intelligent power supply circuit includes power module 1, drive module 2, switch control module 3 and main control chip 4. The input end of power module 1 is used to connect mains circuit 5, the second end of power module 1 is used to connect light emitting device 6, and the second end of power module 1 is also connected with drive module 2 through switch control module 3, for rectifying filtering and high-low voltage conversion processing on the mains voltage output by mains circuit 5, converting the mains voltage into a power supply voltage available for drive module 2 and light emitting device 6. Drive module 2 is used to connect light emitting device 6, and main control chip 4 is connected with switch control module 3 and drive module 2. Main control chip 4 can detect the opening signal through the connected Bluetooth module, key module, etc. Alternatively, main control chip 4 can be a smart chip with voice control, gesture recognition, etc. functions, which can obtain the opening signal through voice commands or gesture commands issued by the user. And / or, the main control chip 4 can also communicate with other smart devices externally, so that the lamp with the current low-power intelligent power supply circuit can form a network with other smart home devices in a smart home environment, sense the control signals emitted by other smart devices, and obtain the opening signal based on the control signals, to realize the "relay" function of continuously transmitting signals in the networked devices. Further, in this control scenario, main control chip 4 can also turn off the "relay" function when the standby condition is met, to reduce power consumption. The opening signal is a signal that enables the low-power intelligent power supply circuit to enter the working mode. When the opening signal exists, the low-power intelligent power supply circuit enters the working state, and when the opening signal does not exist, the low-power intelligent power supply circuit enters the standby state. When main control chip 4 detects the opening signal, it controls switch control module 3 to conduct, so that power module 1 can supply power to drive module 2, so that main control chip 4 can control drive module 2 to output drive signal to light emitting device 6, and light emitting device 6 can work at corresponding power and mode according to the drive signal sent by drive module 2. When main control chip 4 does not detect the opening signal, it controls switch control module 3 to disconnect, so that power module 1 stops supplying power to drive module 2 when the intelligent power supply circuit is in standby state, so that drive module 2 does not consume power in standby state, reducing the overall power consumption of the intelligent power supply circuit.

[0054] In this example, by adding a switch control module 3 between the power module 1 and the drive module 2, the power supply to the drive module 2 can be stopped in standby state, so as to reduce the overall power consumption of the circuit and save power.

[0055] In an embodiment, the switch control module 3 comprises a first control tube Q1 and a second control tube Q2; the first end of the first control tube Q1 is connected with the power module 1, and the second end of the first control tube Q1 is connected with the drive module 2; the first end of the second control tube Q2 is connected with the third end of the first control tube Q1, the second end of the second control tube Q2 is grounded, and the third end of the second control tube Q2 is connected with the main control chip 4.

[0056] As an example, the switch control module 3 comprises a first control tube Q1 and a second control tube Q2. The first control tube Q1 can be a PMOS tube, and the second control tube Q2 can be an NMOS tube. The first end of the first control tube Q1 is the source of the PMOS tube, the second end of the first control tube Q1 is the drain of the PMOS tube, the third end of the first control tube Q1 is the gate of the PMOS tube, the first end of the first control tube Q1 is the drain of the NMOS tube, the second end of the first control tube Q1 is the source of the NMOS tube, and the third end of the first control tube Q1 is the gate of the NMOS tube. The first end of the first control tube Q1 is connected with the power module 1, and the second end of the first control tube Q1 is connected with the drive module 2; the first end of the second control tube Q2 is connected with the third end of the first control tube Q1, the second end of the second control tube Q2 is grounded, and the third end of the second control tube Q2 is connected with the main control chip 4. When the main control chip 4 detects the start signal, a high-level signal can be output to the second control tube Q2, so that the first control tube Q1 and the second control tube Q2 are turned on, the switch control module 3 is turned on, and the power module 1 can supply power to the drive module 2; when the main control chip 4 does not detect the start signal, a low-level signal can be output to the second control tube Q2, so that the first control tube Q1 and the second control tube Q2 are turned off, the power module 1 stops supplying power to the drive module 2, and the drive module 2 does not consume power in standby state, thereby reducing the overall power consumption of the intelligent power supply circuit.

[0057] In an embodiment, the switch control module 3 further comprises a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, and a first capacitor C1; the two ends of the first resistor R1 are respectively connected with the first end and the third end of the first control tube Q1; the two ends of the second resistor R2 are respectively connected with the third end of the first control tube Q1 and the first end of the second control tube Q2; the two ends of the third resistor R3 are respectively connected with the second end and the third end of the second control tube Q2; the two ends of the fourth resistor R4 are respectively connected with the main control chip 4 and the third end of the second control tube Q2; and the two ends of the first capacitor C1 are respectively connected with the second end and the third end of the second control tube Q2.

[0058] As an example, the switch control module 3 further comprises a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4 and a first capacitor C1. The two ends of the first resistor R1 are connected to the first end and the third end of the first control tube Q1 respectively, so as to ensure that the first control tube Q1 can work stably and prevent the first control tube Q1 from being misdirected on. The two ends of the second resistor R2 are connected to the third end of the first control tube Q1 and the first end of the second control tube Q2 respectively, so as to play a current limiting role. The two ends of the third resistor R3 are connected to the second end and the third end of the second control tube Q2 respectively, so as to ensure that the second control tube Q2 can work stably and prevent the second control tube Q2 from being misdirected on. The two ends of the fourth resistor R4 are connected to the main control chip 4 and the third end of the second control tube Q2 respectively, so as to play a current limiting role. The two ends of the first capacitor C1 are connected to the second end and the third end of the second control tube Q2 respectively, so as to filter and prevent the second control tube Q2 from being misdirected on.

[0059] In an embodiment, the low-power intelligent power supply circuit further comprises an alternating current detection module 7. The first end of the alternating current detection module 7 is connected to the connection point of the power supply module 1 and the mains circuit 5. The second end of the alternating current detection module 7 is connected to the main control chip 4, for outputting an alternating current detection signal to the main control chip 4. The main control chip 4 is used for controlling the driving module 2 to work according to the alternating current detection signal.

[0060] As an example, the low-power intelligent power supply circuit further comprises an alternating current detection module 7. The first end of the alternating current detection module 7 is connected to the connection point of the power supply module 1 and the mains circuit 5. The second end of the alternating current detection module 7 is connected to the main control chip 4. The alternating current detection module 7 is used for quickly detecting the voltage change of the alternating current end of the power supply module 1, so that the main control chip 4 controls the driving module 2 to work according to the voltage change of the alternating current end, to realize corresponding functions. For example, when the low-power intelligent power supply circuit and the mains circuit 5 are connected with an intelligent switch having a “flexible” function, the intelligent switch actually is a normally closed self-rebound switch, which can continue to keep closed after being temporarily disconnected under human control. After the low-power intelligent power supply circuit detects that the power supply module 1 is temporarily disconnected from the mains circuit 5 under the control of the intelligent switch through the alternating current detection module 7, the low-power intelligent power supply circuit outputs a corresponding alternating current detection signal to the main control chip 4, so that the main control chip 4 knows that the intelligent switch is temporarily disconnected, and controls the driving module 2 to output a corresponding driving signal according to the preset control method, so that the light emitting device 6 works according to the corresponding power or mode under the control of the driving signal.

[0061] In an embodiment, the alternating current detection module 7 comprises a reset chip U1 and an optical coupling unit U2. The first end of the reset chip U1 is connected to the connection point of the power supply module 1 and the mains circuit 5. The second end of the reset chip U1 is connected to the input end of the optical coupling unit U2. The output end of the optical coupling unit U2 is connected to the main control chip 4.

[0062] As an example, the AC detection module 7 comprises a reset chip U1 and an optocoupler unit U2. The first end of the reset chip U1 is connected to the connection node of the power module 1 and the mains circuit 5, the second end of the reset chip U1 is connected to the input end of the optocoupler unit U2, and the output end of the optocoupler unit U2 is connected to the main control chip 4. When the power module 1 is detected to disconnect the mains circuit 5, the reset chip U1 can send a pulse signal to the optocoupler unit U2. The optocoupler unit U2 serves as an isolation function, which is used to convert the pulse signal into an AC detection signal that can be recognized by the main control chip 4, and send it to the main control chip 4, so that the main control chip 4 controls the driving module 2 to work according to the AC detection signal.

[0063] In this example, the reset chip U1 and the optocoupler unit U2 are used to complete the AC detection, which has low static power consumption, can reduce the overall power consumption of the circuit, and save power.

[0064] In an embodiment, the driving module 2 comprises a voltage reduction unit 21 and a driving unit 22; the voltage reduction unit 21 is connected to the power module 1 and the driving unit 22, and is used for voltage reduction processing on the power supply voltage output by the power module 1; the driving unit 22 is connected to the main control chip 4, and is also used for connecting the light emitting device 6, and is used for controlling the light emitting device 6 to work under the control of the main control chip 4.

[0065] As an example, the driving module 2 comprises a voltage reduction unit 21 and a driving unit 22. The voltage reduction unit 21 is connected to the power module 1 and the driving unit 22, and the driving unit 22 is connected to the main control chip 4 and is also used for connecting the light emitting device 6. The voltage reduction unit 21 is used for DC-DC conversion on the voltage output by the power module 1, so as to further reduce the overall power consumption of the driving module 2 when working. The driving unit 22 is used for outputting a driving signal to the light emitting device 6 under the control of the main control chip 4, so that the light emitting device 6 works in a corresponding power and mode.

[0066] In an embodiment, the voltage reduction unit 21 comprises a voltage reduction chip U3, a first diode D1, a first inductor L1 and a second capacitor C2; the first end of the voltage reduction chip U3 is connected to the power module 1, the second end of the voltage reduction chip U3 is connected to the driving unit 22 through the first inductor L1; the cathode of the first diode D1 is connected to the connection node between the voltage reduction chip U3 and the first inductor L1, and the anode of the first diode D1 is grounded; the first end of the second capacitor C2 is connected to the connection node between the first inductor L1 and the driving unit 22, and the second end of the second capacitor C2 is grounded.

[0067] As an example, the buck unit 21 includes a buck chip U3, a first diode D1, a first inductor L1 and a second capacitor C2; a first end of the buck chip U3 is connected to the power module 1, a second end of the buck chip U3 is connected to the driving unit 22 through the first inductor L1; a cathode of the first diode D1 is connected to a connection node between the buck chip U3 and the first inductor L1, an anode of the first diode D1 is grounded, a first end of the second capacitor C2 is connected to a connection node between the first inductor L1 and the driving unit 22, and a second end of the second capacitor C2 is grounded. The buck chip U3, the first diode D1, the first inductor L1 and the second capacitor C2 constitute a buck circuit, the second end of the buck chip U3 outputs a PWM signal to the first inductor L1, the first inductor L1 and the second capacitor C2 perform charging and discharging, the first diode D1 performs freewheeling, and a voltage output is realized.

[0068] In an embodiment, the driving unit 22 includes at least one dimming chip; a first end of each dimming chip is connected to the buck unit 21; a second end of each dimming chip is used to connect the light emitting device 6 with different light source properties; and a third end of each dimming chip is connected to the master control chip 4, and is used to adjust the power of the light emitting device 6 under the control of the master control chip 4.

[0069] As an example, the driving unit 22 includes at least one dimming chip. A first end of each dimming chip is connected to the buck unit 21, a second end of each dimming chip is used to connect the light emitting device 6 with different light source properties, which can include light color and other properties; and a third end of each dimming chip is connected to the master control chip 4, and is used to adjust the power of the light emitting device 6 under the control of the master control chip 4. For example, the driving unit 22 can include a first dimming chip U4 and a second dimming chip U5, the first dimming chip U4 and the second dimming chip U5 are respectively used to connect the cold light source light emitting device and the warm light source light emitting device, the master control chip 4 controls the first dimming chip U4 and the second dimming chip U5 to output corresponding driving signals, so as to respectively adjust the power of the cold light source light emitting device and the warm light source light emitting device, and realize the adjustment of the intensity and proportion of cold and warm light.

[0070] In an embodiment, the power module 1 includes a rectification unit 11, a transformer unit 12 and a secondary rectification and filtering unit 13; one end of the rectification unit 11 is used to connect the mains circuit 5, and the other end is connected to a primary side of the transformer unit 12; a secondary side of the transformer unit 12 is connected to a first end of the secondary rectification and filtering unit 13, and a second end of the secondary rectification and filtering unit 13 is connected to the driving module 2.

[0071] As an example, the power module 1 includes a rectifier unit 11, a transformer unit 12 and a secondary rectification filter unit 13. One end of the rectifier unit 11 is used for connecting the power supply circuit 5, and the other end is connected with the primary side of the transformer unit 12; the secondary side of the transformer unit 12 is connected with the first end of the secondary rectification filter unit 13, and the second end of the secondary rectification filter unit 13 is connected with the driving module 2. The rectifier unit 11 is used for rectifying the power supply voltage output by the power supply circuit 5, the transformer unit 12 is used for converting the voltage after rectification, and the secondary rectification filter unit 13 is used for rectifying and filtering the voltage output by the transformer secondary, so that the voltage output to the driving module 2 and the light emitting device 6 is more stable.

[0072] The utility model embodiment further provides a lamp, including light emitting device 6 and low power consumption's intelligent power supply circuit of any one embodiment described above, low power consumption's intelligent power supply circuit is connected with light emitting device 6, is used for controlling light emitting device 6 work.

[0073] As an example, the lamp includes a light emitting device 6 and a low power consumption intelligent power supply circuit in any of the above examples, the output end of the power module 1 in the low power consumption intelligent power supply circuit is connected with the light emitting device 6, for providing power supply voltage for the light emitting device 6, the driving module 2 in the low power consumption intelligent power supply circuit is connected with the light emitting device 6, for outputting driving signal to the light emitting device 6, to make the light emitting device 6 work at corresponding power or mode. In the example, by adding the switch control module 3 between the power module 1 and the driving module 2 in the low power consumption intelligent power supply circuit, the power supply for the driving module 2 can be stopped in standby state, to reduce the overall power consumption of the circuit and save electric energy.

[0074] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A low power consumption intelligent power supply circuit, characterized by, The intelligent power supply circuit comprises a power module, a driving module, a switch control module and a main control chip. One end of the power module is used for connecting a commercial power circuit, and the other end is connected with the driving module through the switch control module. The driving module is used for connecting a light emitting device. The main control chip is connected with the switch control module and the driving module, and is used for controlling the switch control module to be turned on and controlling the driving module to output a driving signal to the light emitting device to make the light emitting device work when an opening signal is detected, and controlling the switch control module to be turned off when the opening signal is not detected.

2. The low power consumption intelligent power supply circuit according to claim 1, wherein, The switch control module comprises a first control tube and a second control tube. A first end of the first control tube is connected with the power module, and a second end of the first control tube is connected with the driving module. A first end of the second control tube is connected with a third end of the first control tube, a second end of the second control tube is grounded, and a third end of the second control tube is connected with the main control chip.

3. The low power consumption intelligent power supply circuit according to claim 2, wherein, The switch control module further comprises a first resistor, a second resistor, a third resistor, a fourth resistor and a first capacitor. Two ends of the first resistor are respectively connected with the first end and the third end of the first control tube. Two ends of the second resistor are respectively connected with the third end of the first control tube and the first end of the second control tube. Two ends of the third resistor are respectively connected with the second end and the third end of the second control tube. Two ends of the fourth resistor are respectively connected with the main control chip and the third end of the second control tube. Two ends of the first capacitor are respectively connected with the second end and the third end of the second control tube.

4. The low power consumption intelligent power supply circuit according to claim 1, wherein, The low-power intelligent power supply circuit further comprises an alternating current detection module. A first end of the alternating current detection module is connected with a connection point of the power module and the commercial power circuit. A second end of the alternating current detection module is connected with the main control chip, and is used for outputting an alternating current detection signal to the main control chip. The main control chip is used for controlling the driving module to work according to the alternating current detection signal.

5. The low power consumption intelligent power supply circuit according to claim 4, wherein, The alternating current detection module comprises a reset chip and an optical coupling unit. A first end of the reset chip is connected with the connection point of the power module and the commercial power circuit, a second end of the reset chip is connected with an input end of the optical coupling unit, and an output end of the optical coupling unit is connected with the main control chip.

6. The low power consumption intelligent power supply circuit according to claim 1, wherein, The driving module comprises a voltage reduction unit and a driving unit. The voltage reduction unit is connected with the power module and the driving unit, and is used for performing voltage reduction processing on a power supply voltage output by the power module. The driving unit is connected with the main control chip, and is further used for connecting the light emitting device, and is used for controlling the light emitting device to work under the control of the main control chip.

7. The low power consumption intelligent power supply circuit according to claim 6, wherein, The voltage reduction unit comprises a voltage reduction chip, a first diode, a first inductor and a second capacitor. A first end of the voltage reduction chip is connected with the power module, and a second end of the voltage reduction chip is connected with the driving unit through the first inductor. A cathode of the first diode is connected with a connection point between the voltage reduction chip and the first inductor, and an anode of the first diode is grounded. The first end of the second capacitor is connected to a connection node between the first inductor and the driving unit, and the second end of the second capacitor is grounded.

8. The low power consumption intelligent power supply circuit according to claim 6, wherein, The driving unit comprises at least one dimming chip. The first end of each dimming chip is connected to the voltage reduction unit. The second end of each dimming chip is used for connecting light emitting devices with different light source properties. The third end of each dimming chip is connected to the master control chip, and is used for adjusting the power of the light emitting devices under the control of the master control chip.

9. The low power consumption intelligent power supply circuit according to claim 1, wherein, The power supply module comprises a rectification unit, a transformer unit and a secondary rectification filter unit. One end of the rectification unit is used for connecting a commercial power circuit, and the other end is connected to the primary side of the transformer unit. The secondary side of the transformer unit is connected to the first end of the secondary rectification filter unit, and the second end of the secondary rectification filter unit is connected to the driving module.

10. A luminaire characterized by, The low-power intelligent power supply circuit and the light emitting device are connected, and the low-power intelligent power supply circuit is used for controlling the light emitting device to work. The low-power intelligent power supply circuit and the light emitting device are connected, and the low-power intelligent power supply circuit is used for controlling the light emitting device to work.

Images