CN111800915A - LED lamp driving circuit and LED lamp - Google Patents

Abstract

The invention is suitable for the technical field of LEDs, in particular to an LED lamp driving circuit and an LED lamp, wherein, the LED lamp driving circuit comprises a power supply module, a control module, a vibration acquisition module and an LED driving module, the vibration acquisition module outputs a vibration acquisition signal to the control module when detecting a first trigger operation of a user, the control module outputs a corresponding dimming control signal to the LED driving module according to the magnitude of the vibration acquisition signal, the LED driving module outputs a driving current matched with the magnitude of the vibration acquisition signal to the LED lamp according to the dimming control signal, so as to adjust the brightness and/or color temperature of the LED lamp, users can adjust different brightness and/or color temperature of the LED lamp by triggering the vibration acquisition module, therefore, the light effect of the LED lamp can be set according to the triggering operation of the user, the interference of a heat light source is avoided, and the reliability of the LED lamp is improved.

Description

LED lamp driving circuit and LED lamp

Technical Field

The invention belongs to the technical field of LEDs, and particularly relates to an LED lamp driving circuit and an LED lamp.

Background

Along with the continuous development and the innovation of science and technology, the design of electronic product is more novel and unique, and is diversified to satisfy different stratum personage's consumption experience, the appearance of LED lamps and lanterns such as help dormancy lamp, atmosphere lamp is more and more popular by everybody, firstly can build indoor mood, secondly can assist the user to set up the light effect under different modes such as daily life, fall asleep, awaken up, LED lamps and lanterns such as help dormancy lamp, atmosphere lamp design is mostly through infrared ray induction technique automatic control light effect.

However, the infrared sensing technology is adopted to control the light effect, and the following defects exist:

1. when the environmental temperature is close to the human body temperature, the detection and sensitivity can be obviously reduced, and even transient failure can occur sometimes;

2. is easily interfered by various heat source and light sources;

3. the passive infrared penetration force is poor, when the infrared radiation of a human body is shielded by other objects, the infrared radiation is not easily received by the probe, the phenomenon of incapability of induction can occur, and the like.

Disclosure of Invention

The invention aims to provide an LED lamp driving circuit, and aims to solve the problem that a traditional infrared LED lamp is easy to interfere.

The first aspect of the embodiment of the invention provides an LED lamp driving circuit, which comprises a power supply module, a control module, a vibration acquisition module and an LED driving module;

the power supply module is respectively and electrically connected with the vibration acquisition module, the control module and the LED driving module, the control module is also respectively and electrically connected with the vibration acquisition module and the LED driving module, and the LED driving module is also electrically connected with the LED lamp;

the power supply module is used for outputting a working power supply to supply power to the vibration acquisition module, the control module and the LED driving module;

the vibration acquisition module is used for outputting a vibration acquisition signal to the control module when a first trigger operation of a user is detected;

the control module is used for outputting a corresponding dimming control signal to the LED driving module according to the magnitude of the vibration acquisition signal;

the LED driving module is used for outputting a driving current matched with the vibration acquisition signal to the LED lamp according to the dimming control signal so as to adjust the brightness and/or the color temperature of the LED lamp.

In one embodiment, the LED lamps include a first color LED lamp, a second color LED lamp, and a third color LED lamp, and the LED driving module includes a first LDO voltage regulator circuit, a second LDO voltage regulator circuit, a third LDO voltage regulator circuit, a first electronic switching tube, a second electronic switching tube, and a third electronic switching tube;

the power input end of the first LDO voltage stabilizing circuit, the power input end of the second LDO voltage stabilizing circuit and the power input end of the third LDO voltage stabilizing circuit are electrically connected with the power module, the power output end of the first LDO voltage stabilizing circuit is connected with the input end of the first electronic switch tube, the power output end of the second LDO voltage stabilizing circuit is connected with the input end of the second electronic switch tube, the power output end of the third LDO voltage stabilizing circuit is connected with the input end of the third electronic switch tube, the output end of the first electronic switch tube is connected with the power end of a first color LED lamp in the LED lamps, the output end of the second electronic switch tube is connected with the power end of a second color LED lamp in the LED lamps, the output end of the third electronic switch tube is connected with the power end of a third color LED lamp in the LED lamps, the controlled end of the first electronic switch tube, The controlled end of the second electronic switching tube and the controlled end of the third electronic switching tube are respectively connected with the control module;

the first LDO voltage stabilizing circuit is used for performing voltage conversion on the working power supply to obtain a first driving power supply and outputting the first driving power supply to the first electronic switching tube;

the second LDO voltage stabilizing circuit is used for performing voltage conversion on the working power supply to obtain a second driving power supply and outputting the second driving power supply to the second electronic switching tube;

the third LDO voltage stabilizing circuit is used for performing voltage conversion on the working power supply to obtain a third driving power supply and outputting the third driving power supply to the third electronic switching tube;

the control module is further configured to output a corresponding PWM signal with a first duty ratio to the first electronic switching tube, output a corresponding PWM signal with a second duty ratio to the second electronic switching tube, and output a corresponding PWM signal with a third duty ratio to the third electronic switching tube according to the magnitude of the vibration acquisition signal;

the first electronic switching tube is used for outputting driving current with corresponding magnitude to the first color LED lamp according to the PWM signal with the first duty ratio so as to adjust the brightness and/or the color temperature of the first color LED lamp;

the second electronic switching tube is used for outputting driving current with corresponding magnitude to the second color LED lamp according to the PWM signal with the second duty ratio so as to adjust the brightness and/or the color temperature of the second color LED lamp;

and the third electronic switching tube is used for outputting a driving current with a corresponding magnitude to the LED lamp with the third color according to the PWM signal with the third duty ratio so as to adjust the brightness and/or the color temperature of the LED lamp with the third color.

In one embodiment, the first LDO voltage regulator circuit comprises a first resistor, a first capacitor, a second capacitor and a first LDO voltage regulator chip;

the first end of the first resistor, the first end of the first capacitor, the first end of the second capacitor and the power supply end of the first LDO voltage stabilizing chip are connected, the second end of the first capacitor, the second end of the second capacitor and the grounding end of the first LDO voltage stabilizing chip are all grounded, the second end of the first resistor is connected with the enabling end of the first LDO voltage stabilizing chip, and the output end of the first LDO voltage stabilizing chip is the power supply output end of the first LDO voltage stabilizing circuit.

In one embodiment, the second LDO voltage regulator circuit includes a second resistor, a third capacitor, a fourth capacitor, and a second LDO voltage regulator chip;

the first end of the second resistor, the first end of the third capacitor, the first end of the fourth capacitor and the power supply end of the second LDO voltage stabilizing chip are connected, the second end of the third capacitor, the second end of the fourth capacitor and the grounding end of the second LDO voltage stabilizing chip are all grounded, the second end of the second resistor is connected with the enabling end of the second LDO voltage stabilizing chip, and the output end of the second LDO voltage stabilizing chip is the power supply output end of the first LDO voltage stabilizing circuit.

In one embodiment, the third LDO voltage regulator circuit includes a third resistor, a fifth capacitor, a sixth capacitor, and a third LDO voltage regulator chip;

the first end of the third resistor, the first end of the fifth capacitor, the first end of the sixth capacitor and the power supply end of the third LDO voltage stabilizing chip are connected, the second end of the fifth capacitor, the second end of the sixth capacitor and the grounding end of the third LDO voltage stabilizing chip are all grounded, the second end of the third resistor is connected with the enabling end of the third LDO voltage stabilizing chip, and the output end of the third LDO voltage stabilizing chip is the power supply output end of the first LDO voltage stabilizing circuit.

In one embodiment, the vibration acquisition module comprises a vibration sensor or a vibration switch.

In one embodiment, the LED lamp driving circuit further comprises a key module, and the key module is electrically connected to the control module;

the key module is used for sending a first trigger signal to the control module when detecting a second trigger operation of the user;

the control module is further configured to control the LED driving module to start or stop working according to the first trigger signal, so as to control a lighting state of the LED lamp.

In one embodiment, the LED lamp driving circuit further comprises a wireless communication module, and the wireless communication module is electrically connected to the power module and the control module respectively;

the control module is further used for receiving a control instruction sent by the terminal equipment through the wireless communication module and controlling the LED driving module to work according to the control instruction so as to control the lighting state of the LED lamp.

In one embodiment, the LED lamp driving circuit further includes a playing device, and the playing device is electrically connected to the power module and the control module respectively;

the key module is used for sending a second trigger signal to the control module when detecting a third trigger operation of the user;

the control module is further configured to control the playing device to start according to the second trigger signal or the control instruction, so as to control the playing device to play music or prompt tone.

A second aspect of an embodiment of the present invention provides an LED lamp, which includes an LED lamp and the LED lamp driving circuit described above.

According to the first aspect of the embodiment of the invention, the power module, the control module, the vibration acquisition module and the LED drive module are adopted to form the LED lamp drive circuit, the vibration acquisition module outputs a vibration acquisition signal to the control module when detecting the first trigger operation of a user, the control module outputs a corresponding dimming control signal to the LED drive module according to the magnitude of the vibration acquisition signal, the LED drive module outputs a drive current matched with the magnitude of the vibration acquisition signal to the LED lamp according to the dimming control signal so as to adjust the brightness and/or the color temperature of the LED lamp, and the user can adjust different brightness and/or color temperature of the LED lamp by triggering the vibration acquisition module, so that the light effect of the LED lamp can be set according to the trigger operation of the user, the interference of a heat light source is avoided, and the reliability of the LED lamp is improved.

Drawings

Fig. 1 is a schematic diagram of a first structure of an LED lamp driving circuit according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a second structure of an LED lamp driving circuit according to an embodiment of the present invention;

FIG. 3 is a schematic circuit diagram of a first LDO voltage regulator circuit according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a circuit configuration of a second LDO voltage regulator circuit according to an embodiment of the present invention;

FIG. 5 is a schematic circuit diagram of a third LDO voltage regulator circuit according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a third structure of an LED lamp driving circuit according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

A first aspect of an embodiment of the present invention provides an LED lamp driving circuit 100.

As shown in fig. 1, fig. 1 is a schematic diagram of a first structure of an LED lamp driving circuit 100 according to an embodiment of the present invention, where the LED lamp driving circuit 100 includes a power module 10, a control module 20, a vibration collection module 30, and an LED driving module 40;

the power module 10 is respectively electrically connected with the vibration acquisition module 30, the control module 20 and the LED driving module 40, the control module 20 is also respectively electrically connected with the vibration acquisition module 30 and the LED driving module 40, and the LED driving module 40 is also electrically connected with the LED lamp 200;

the power supply module 10 is used for outputting a working power supply VDD to supply power to the vibration acquisition module 30, the control module 20 and the LED driving module 40;

the vibration acquisition module 30 is used for outputting a vibration acquisition signal to the control module 20 when a first trigger operation of a user is detected;

the control module 20 is configured to output a corresponding dimming control signal to the LED driving module 40 according to the magnitude of the vibration acquisition signal;

and the LED driving module 40 is configured to output a driving current matched with the magnitude of the vibration collecting signal to the LED lamp 200 according to the dimming control signal, so as to adjust the brightness and/or the color temperature of the LED lamp 200.

In this embodiment, the LED lamp driving circuit 100 may be applied to various occasions, such as a lighting lamp, a sleep-assisting lamp, or a desk lamp, where the vibration acquisition module 30 acquires a trigger operation of a user, the user may directly or indirectly tap or touch the vibration acquisition module 30 through a linkage structure, the vibration acquisition module 30 vibrates after the trigger operation of the user, vibration forces applied to the vibration acquisition module 30 are different, vibration amplitudes or intensities of the vibration acquisition module 30 are different, meanwhile, the vibration acquisition module 30 converts the vibration forces into corresponding vibration acquisition signals and feeds the vibration acquisition signals back to the control module 20, the vibration acquisition module 30 may adopt a spring structure or a vibration switch structure, in one embodiment, the vibration acquisition module 30 is a vibration switch or a vibration sensor, the vibration switch or the vibration sensor is respectively connected to the power module 10 and the control module 20, and when the vibration switch or the vibration sensor senses a first trigger operation, the vibration switch or vibration sensor is momentarily short-circuited to the ground and feeds back a voltage sensing signal to the control module 20, where the voltage sensing signal is varied in synchronization with the force of the first trigger operation.

Meanwhile, the control module 20 outputs a corresponding dimming control signal to the LED driving module 40 when receiving the voltage sensing signal, the LED driving module 40 outputs a driving current matched with the magnitude of the vibration collecting signal to the LED lamps 200 according to the dimming control signal to adjust the brightness and/or color temperature of the LED lamps 200, one or more LED lamps 200 may be provided, when a plurality of LED lamps 200 are provided, the types thereof may be the same or different, when the LED lamps 200 include a plurality of LED lamps 200 of different colors, the LED driving module 40 may respectively output a driving current of a corresponding magnitude to each LED lamp 200, thereby adjusting the brightness and/or color temperature of the LED lamps 200 of different colors, and displaying the overall display effect of different color temperatures and brightness, thereby setting the lighting effect in different modes such as living, falling asleep, waking up and the like according to the triggering operation of the user without interference of the heat source, when the lamp is used as a sleep-aiding lamp, the reliability of the sleep-aiding lamp is improved.

In this embodiment, the power module 10 may be a battery or a power conversion Circuit, and outputs working power VDD of different sizes to each functional module, and the control module 20 may be a Central Processing Unit (CPU), another general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA), or another Programmable logic device, a discrete Gate or a transistor logic device, a discrete hardware component, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The LED driving module 40 is specifically configured according to the number and the driving type of the LED lamps 200, and may include one-way output or multiple-way output, and the LED driving module 40 may adopt switching power supply structures such as a switching power supply chip and a buck-boost circuit, and is specifically configured according to requirements.

According to the embodiment of the invention, the power module 10, the control module 20, the vibration acquisition module 30 and the LED drive module 40 are adopted to form the LED lamp drive circuit 100, the vibration acquisition module 30 outputs the vibration acquisition signal to the control module 20 when detecting the first trigger operation of the user, the control module 20 outputs the corresponding dimming control signal to the LED drive module 40 according to the magnitude of the vibration acquisition signal, the LED drive module 40 outputs the drive current matched with the magnitude of the vibration acquisition signal to the LED lamp 200 according to the dimming control signal so as to adjust the brightness and/or the color temperature of the LED lamp 200, and the user realizes the adjustment of different brightness and color temperature of the LED lamp 200 by beating or touching the vibration acquisition module 30, is not interfered by a heat light source, and improves the reliability of the LED lamp.

As shown in fig. 2, in one embodiment, the LED lamp 200 includes a first color LED lamp 200, a second color LED lamp 200, and a third color LED lamp 200, and the LED driving module 40 includes a first LDO regulator 41, a second LDO regulator 42, a third LDO regulator 43, a first electronic switch tube 44, a second electronic switch tube 45, and a third electronic switch tube 46;

a power input end of the first LDO voltage regulator circuit 41, a power input end of the second LDO voltage regulator circuit 42, and a power input end of the third LDO voltage regulator circuit 43 are electrically connected to the power module 10, a power output end of the first LDO voltage regulator circuit 41 is connected to an input end of the first electronic switch tube 44, a power output end of the second LDO voltage regulator circuit 42 is connected to an input end of the second electronic switch tube 45, a power output end of the third LDO voltage regulator circuit 43 is connected to an input end of the third electronic switch tube 46, an output end of the first electronic switch tube 44 is connected to a power end of the first color LED lamp 200 of the LED lamp 200, an output end of the second electronic switch tube 45 is connected to a power end of the second color LED lamp 200 of the LED lamp 200, an output end of the third electronic switch tube 46 is connected to a power end of the third color LED lamp 200 of the LED lamp 200, a controlled end of the first electronic switch tube 44, a controlled end of the second electronic switch tube 45, and a controlled end of the third (ii) a

The first LDO voltage regulator circuit 41 is configured to perform voltage conversion on a working power supply VDD to obtain a first driving power supply, and output the first driving power supply to the first electronic switch tube 44;

the second LDO voltage stabilizing circuit 42 is configured to perform voltage conversion on the working power supply VDD to obtain a second driving power supply, and output the second driving power supply to the second electronic switching tube 45;

the third LDO voltage stabilizing circuit 43 is configured to perform voltage conversion on the working power supply VDD to obtain a third driving power supply, and output the third driving power supply to the third electronic switching tube 46;

the control module 20 is further configured to output a corresponding PWM signal with a first duty ratio to the first electronic switching tube 44, output a corresponding PWM signal with a second duty ratio to the second electronic switching tube 45, and output a corresponding PWM signal with a third duty ratio to the third electronic switching tube 46 according to the magnitude of the vibration acquisition signal;

the first electronic switching tube 44 is configured to output a driving current of a corresponding magnitude to the first color LED lamp 200 according to the PWM signal of the first duty ratio, so as to adjust the brightness and/or the color temperature of the first color LED lamp 200;

the second electronic switching tube 45 is configured to output a driving current of a corresponding magnitude to the second color LED lamp 200 according to the PWM signal of the second duty ratio, so as to adjust the brightness and/or the color temperature of the second color LED lamp 200;

and the third electronic switching tube 46 is configured to output a driving current of a corresponding magnitude to the third color LED lamp 200 according to the PWM signal of the third duty ratio, so as to adjust the brightness and/or the color temperature of the third color LED lamp 200.

In this embodiment, the colors of the first color LED lamp 200, the second color LED lamp 200, and the third color LED lamp 200 can be selected according to the requirement, in one embodiment, the first color LED lamp 200 is a red LED lamp R200, the second color LED lamp 200 is a green LED lamp G200, the third color LED lamp 200 is a blue LED lamp B200, the first color LED lamp 200, the second color LED lamp 200, and the third color LED lamp 200 form a three-color LED lamp 200, and the display effects of different colors and brightness can be displayed under the control of different driving currents.

In order to improve the display stability of the LED lamp 200, in this embodiment, the LED driving module 40 includes a first LDO voltage regulator 41, a second LDO voltage regulator 42, and a third LDO voltage regulator 43, the first LDO voltage regulator 41, the second LDO voltage regulator 42, and the third LDO voltage regulator 43 convert the operating power VDD provided by the power module 10 and output different driving power to the first electronic switch tube 44, the second electronic switch tube 45, and the third electronic switch tube 46, respectively, the control module 20 receives the vibration acquisition signal and outputs PWM signals with different duty ratios to the first electronic switch tube 44, the second electronic switch tube 45, and the third electronic switch tube 46 according to a preset algorithm or a mapping table, the first electronic switch tube 44, the second electronic switch tube 45, and the third electronic switch tube 46 are turned on and off correspondingly under the control of the PWM signals, and outputs driving currents with corresponding magnitudes to the LED lamps 200 with different colors connected thereto, thereby realizing color mixture display.

In this embodiment, the first electronic switch tube 44, the second electronic switch tube 45, and the third electronic switch tube 46 may adopt switching components such as a triode, an MOS transistor, etc., and specific types are selected according to requirements, which is not limited herein.

The LDO regulator circuit may employ a voltage regulator tube or a voltage regulator chip, and in one embodiment, as shown in fig. 3 to 5, the first LDO regulator circuit 41 includes a first resistor R1, a first capacitor C1, a second capacitor C2, and a first LDO regulator chip U1;

the first end of first resistance R1, the first end of first electric capacity C1, the first end of second electric capacity C2 and the power end of first LDO steady voltage chip U1 are connected, the second end of first electric capacity C1, the second end of second electric capacity C2 and the earthing terminal of first LDO steady voltage chip U1 all ground connection, the second end of first resistance R1 and the enable end of first LDO steady voltage chip U1 are connected, the output of first LDO steady voltage chip U1 is first voltage regulator LDO 41's power output end.

The second LDO voltage regulator circuit 42 comprises a second resistor R2, a third capacitor C3, a fourth capacitor C4 and a second LDO voltage regulator chip U2;

the first end of second resistance R2, the first end of third electric capacity C3, the first end of fourth electric capacity C4 and the power end of second LDO steady voltage chip U2 are connected, the second end of third electric capacity C3, the second end of fourth electric capacity C4 and the earthing terminal of second LDO steady voltage chip U2 all ground connection, the second end of second resistance R2 and the enable end of second LDO steady voltage chip U2 are connected, the output of second LDO steady voltage chip U2 is the power output end of first steady voltage circuit LDO 41.

The third LDO regulator 43 includes a third resistor R3, a fifth capacitor C5, a sixth capacitor C6, and a third LDO regulator chip U3;

the first end of third resistance R3, the first end of fifth electric capacity C5, the first end of sixth electric capacity C6 and the power end of third LDO steady voltage chip U3 are connected, the second end of fifth electric capacity C5, the second end of sixth electric capacity C6 and the earthing terminal of third LDO steady voltage chip U3 all ground connection, the second end of third resistance R3 and the enable end of third LDO steady voltage chip U3 are connected, the output of third LDO steady voltage chip U3 is the power output end of first steady voltage circuit LDO 41.

In this embodiment, the enable terminals of the first LDO regulator chip U1, the second LDO regulator chip U2, and the third LDO regulator chip U3 are activated when receiving a voltage signal, and perform voltage conversion on the working power supply VDD output by the power module 10 to output a voltage signal of a constant magnitude to the corresponding electronic switch tube, and the capacitor is used for filtering to prevent noise interference.

As shown in fig. 6, in an embodiment, the LED lamp driving circuit 100 further includes a key module 50, and the key module 50 is electrically connected to the control module 20;

the key module 50 is configured to send a first trigger signal to the control module 20 when detecting a second trigger operation of the user;

the control module 20 is further configured to control the LED driving module 40 to start or stop according to the first trigger signal, so as to control the lighting state of the LED lamp 200.

In this embodiment, the LED lamp 200 can be controlled not only by the vibration collection module 30, but also by the key module 50, the user can control the LED lamp 200, the control module 20 outputs a dimming control signal with a corresponding magnitude to the LED driving module 40 when receiving the first trigger signal output by the key module 50, thereby controlling the operating state and the output state of the LED driving module 40, and further controlling the lighting state of the LED lamp 200, the key module 50 can be a key switch or a touch switch, and can realize the control of turning on, turning off, dimming, color mixing and the like for the LED lamp 200.

Referring to fig. 6, in order to improve the intelligence of the LED lamp driving circuit 100, in an embodiment, the LED lamp driving circuit 100 further includes a wireless communication module 60, and the wireless communication module 60 is electrically connected to the power module 10 and the control module 20 respectively;

the control module 20 is further configured to receive a control instruction sent by the terminal device through the wireless communication module 60, and control the LED driving module 40 to operate according to the control instruction, so as to control the lighting state of the LED lamp 200, a user may send the control instruction to the control module 20 through the terminal device such as a mobile phone or a computer and the wireless communication module 60, and the control module 20 responds to the control instruction according to a built-in control program and sends a corresponding dimming control signal to the LED driving module 40, thereby implementing non-contact and remote LED lamp 200 control.

The wireless communication module 60 can be a wireless communication module 60 such as bluetooth and WIFI, and is specifically selected according to the requirement.

Referring to fig. 6, in an embodiment, the LED lamp driving circuit 100 further includes a playing device 70, and the playing device 70 is electrically connected to the power module 10 and the control module 20 respectively;

the key module 50 is configured to send a second trigger signal to the control module 20 when detecting a third trigger operation of the user;

the control module 20 is further configured to control the playing device 70 to start operation according to the second trigger signal or the control instruction, so as to control the playing device 70 to play music or prompt tone.

In this embodiment, the user can also control the playing device 70 to work through the wireless communication module 60 or the key module 50, and can make the playing device 70 play music or prompt tone, so as to assist in sleeping or early-rise time broadcasting, and the like, and the playing device 70 can be a speaker or a DSP voice device, and the specific structure and type are selected according to the requirements.

The invention further provides an LED lamp, which includes an LED lamp 200 and an LED lamp driving circuit 100, and the specific structure of the LED lamp driving circuit 100 refers to the above embodiments, and since the LED lamp employs all technical solutions of all the above embodiments, the LED lamp at least has all beneficial effects brought by the technical solutions of the above embodiments, and details are not repeated here.

In this embodiment, the LED lamp can be a lighting lamp, a sleep-assisting lamp, a desk lamp, or the like, and the user can adjust the brightness or color temperature of the LED lamp 200 by triggering the vibration acquisition module 30, so as to adjust the different brightness and color temperature of the LED lamp 200, and thus the light effects in different modes such as living, sleeping, waking up, and the like can be set according to the triggering operation of the user, and the reliability of the LED lamp is improved without being interfered by a heat source.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.

Claims (10)

1. The LED lamp driving circuit is characterized by comprising a power supply module, a control module, a vibration acquisition module and an LED driving module;

the power supply module is respectively and electrically connected with the vibration acquisition module, the control module and the LED driving module, the control module is also respectively and electrically connected with the vibration acquisition module and the LED driving module, and the LED driving module is also electrically connected with the LED lamp;

the power supply module is used for outputting a working power supply to supply power to the vibration acquisition module, the control module and the LED driving module;

the vibration acquisition module is used for outputting a vibration acquisition signal to the control module when a first trigger operation of a user is detected;

the control module is used for outputting a corresponding dimming control signal to the LED driving module according to the magnitude of the vibration acquisition signal;

the LED driving module is used for outputting a driving current matched with the vibration acquisition signal to the LED lamp according to the dimming control signal so as to adjust the brightness and/or the color temperature of the LED lamp.

2. The LED lamp driving circuit according to claim 1, wherein the LED lamp comprises a first color LED lamp, a second color LED lamp, and a third color LED lamp, and the LED driving module comprises a first LDO voltage regulator circuit, a second LDO voltage regulator circuit, a third LDO voltage regulator circuit, a first electronic switch tube, a second electronic switch tube, and a third electronic switch tube;

the power input end of the first LDO voltage stabilizing circuit, the power input end of the second LDO voltage stabilizing circuit and the power input end of the third LDO voltage stabilizing circuit are electrically connected with the power module, the power output end of the first LDO voltage stabilizing circuit is connected with the input end of the first electronic switch tube, the power output end of the second LDO voltage stabilizing circuit is connected with the input end of the second electronic switch tube, the power output end of the third LDO voltage stabilizing circuit is connected with the input end of the third electronic switch tube, the output end of the first electronic switch tube is connected with the power end of a first color LED lamp in the LED lamps, the output end of the second electronic switch tube is connected with the power end of a second color LED lamp in the LED lamps, the output end of the third electronic switch tube is connected with the power end of a third color LED lamp in the LED lamps, the controlled end of the first electronic switch tube, The controlled end of the second electronic switching tube and the controlled end of the third electronic switching tube are respectively connected with the control module;

the first LDO voltage stabilizing circuit is used for performing voltage conversion on the working power supply to obtain a first driving power supply and outputting the first driving power supply to the first electronic switching tube;

the second LDO voltage stabilizing circuit is used for performing voltage conversion on the working power supply to obtain a second driving power supply and outputting the second driving power supply to the second electronic switching tube;

the third LDO voltage stabilizing circuit is used for performing voltage conversion on the working power supply to obtain a third driving power supply and outputting the third driving power supply to the third electronic switching tube;

the control module is further configured to output a corresponding PWM signal with a first duty ratio to the first electronic switching tube, output a corresponding PWM signal with a second duty ratio to the second electronic switching tube, and output a corresponding PWM signal with a third duty ratio to the third electronic switching tube according to the magnitude of the vibration acquisition signal;

the first electronic switching tube is used for outputting driving current with corresponding magnitude to the first color LED lamp according to the PWM signal with the first duty ratio so as to adjust the brightness and/or the color temperature of the first color LED lamp;

the second electronic switching tube is used for outputting driving current with corresponding magnitude to the second color LED lamp according to the PWM signal with the second duty ratio so as to adjust the brightness and/or the color temperature of the second color LED lamp;

and the third electronic switching tube is used for outputting a driving current with a corresponding magnitude to the LED lamp with the third color according to the PWM signal with the third duty ratio so as to adjust the brightness and/or the color temperature of the LED lamp with the third color.

3. The LED lamp driver circuit of claim 2, wherein the first LDO regulator circuit comprises a first resistor, a first capacitor, a second capacitor, and a first LDO regulator chip;

the first end of the first resistor, the first end of the first capacitor, the first end of the second capacitor and the power supply end of the first LDO voltage stabilizing chip are connected, the second end of the first capacitor, the second end of the second capacitor and the grounding end of the first LDO voltage stabilizing chip are all grounded, the second end of the first resistor is connected with the enabling end of the first LDO voltage stabilizing chip, and the output end of the first LDO voltage stabilizing chip is the power supply output end of the first LDO voltage stabilizing circuit.

4. The LED lamp driver circuit of claim 2, wherein the second LDO regulator circuit comprises a second resistor, a third capacitor, a fourth capacitor, and a second LDO regulator chip;

the first end of the second resistor, the first end of the third capacitor, the first end of the fourth capacitor and the power supply end of the second LDO voltage stabilizing chip are connected, the second end of the third capacitor, the second end of the fourth capacitor and the grounding end of the second LDO voltage stabilizing chip are all grounded, the second end of the second resistor is connected with the enabling end of the second LDO voltage stabilizing chip, and the output end of the second LDO voltage stabilizing chip is the power supply output end of the first LDO voltage stabilizing circuit.

5. The LED lamp driver circuit of claim 2, wherein the third LDO regulator circuit comprises a third resistor, a fifth capacitor, a sixth capacitor, and a third LDO regulator chip;

the first end of the third resistor, the first end of the fifth capacitor, the first end of the sixth capacitor and the power supply end of the third LDO voltage stabilizing chip are connected, the second end of the fifth capacitor, the second end of the sixth capacitor and the grounding end of the third LDO voltage stabilizing chip are all grounded, the second end of the third resistor is connected with the enabling end of the third LDO voltage stabilizing chip, and the output end of the third LDO voltage stabilizing chip is the power supply output end of the first LDO voltage stabilizing circuit.

6. The LED lamp driver circuit of claim 1, wherein the vibration acquisition module comprises a vibration sensor or a vibration switch.

7. The LED lamp driving circuit according to claim 1, further comprising a key module electrically connected to the control module;

the key module is used for sending a first trigger signal to the control module when detecting a second trigger operation of the user;

the control module is further configured to control the LED driving module to start or stop working according to the first trigger signal, so as to control a lighting state of the LED lamp.

8. The LED lamp driving circuit according to claim 7, further comprising a wireless communication module electrically connected to the power module and the control module, respectively;

the control module is further used for receiving a control instruction sent by the terminal equipment through the wireless communication module and controlling the LED driving module to work according to the control instruction so as to control the lighting state of the LED lamp.

9. The LED lamp driving circuit according to claim 8, further comprising a playing device, the playing device being electrically connected to the power module and the control module, respectively;

the key module is used for sending a second trigger signal to the control module when detecting a third trigger operation of the user;

the control module is further configured to control the playing device to start according to the second trigger signal or the control instruction, so as to control the playing device to play music or prompt tone.

10. An LED lamp comprising an LED lamp and the LED lamp driving circuit according to any one of claims 1 to 9.

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