LED lamp with adjustable flash frequency

Abstract

To provide an LED lamp with adjustable flash frequency.SOLUTION: An LED lamp with adjustable flash frequency includes: a power conversion circuit for converting an input DC power source into an output DC power source; a PWM unit for generating a first composite pulse modulation signal and a second composite pulse modulation signal based on a flash frequency command signal while the output DC power source is being supplied; an LED module for determining a flash frequency of an illumination light based on control of the first composite pulse modulation signal and the second composite pulse modulation signal; and a communication module for generating the flash frequency command signal based on a command received from an external device.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an LED lamp, and more particularly to an LED lamp with adjustable flash frequency. [Background technology]

[0002] Due to their energy-saving properties, LED lamps are widely applied in various lighting fixtures.

[0003] Additionally, in recent studies, scientists have found that low flash frequencies produce certain beneficial effects in users, and that different flash frequencies produce different beneficial effects in users. Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the aforementioned conventional LED technology, a typical LED lamp can only provide pure illumination and cannot provide adjustable flash frequency.

[0005] Therefore, the present inventors believed that the above drawbacks could be improved, and as a result of extensive research, they came up with the proposal of the present invention, which effectively improves the above problems through rational design.

[0006] The present invention has been made in view of the above circumstances, and aims to solve the above problems, namely, a main object of the present invention is to provide an LED lamp with adjustable flash frequency that not only allows a user to remotely select brightness and / or color temperature, but also allows a user to remotely select a low-frequency flash frequency, thereby generating specific effects beneficial to the user.

[0007] Another object of the present invention is to provide an LED lamp with adjustable flash frequency that allows the user to remotely select whether the flash function is on or off, and the lamp regains its general lighting function.

[0008] It is yet another object of the present invention to provide an LED lamp with an adjustable flash frequency that allows the user to remotely select a time duration for the flash function, where the lamp flashes for a set period of time before resuming general lighting function. [Means for solving the problem]

[0009] In order to solve the above problems, one aspect of the present invention is an LED lamp with adjustable flash frequency, which comprises: a power conversion circuit for converting an input DC power source into an output DC power source; a PWM unit for generating a first composite pulse modulated signal and a second composite pulse modulated signal according to a flash frequency command signal while the output DC power source is being energized; an LED module for determining a flash frequency of illumination light based on control of the first composite pulse-modulated signal and the second composite pulse-modulated signal; and a communications module for generating the flash frequency command signal based on commands received from an external device.

[0010] In a preferred embodiment of the present invention, the first composite pulse modulated signal and the second composite pulse modulated signal both have periods, each of the periods having an active period and an inactive period, and each of the active periods having all sub-pulse signals.

[0011] In a preferred embodiment of the present invention, the period is shorter than 1 / 60 seconds.

[0012] In a possible embodiment, the power converter circuit is a switched boost power converter circuit or a switched buck power converter circuit.

[0013] In a preferred embodiment of the present invention, the communication module further generates a dimming command signal based on the command, and the PWM unit determines the duty ratio of the sub-pulse modulation signals in the first composite pulse modulation signal and the second composite pulse modulation signal based on the dimming command signal, thereby determining the brightness of the illumination light.

[0014] In a preferred embodiment of the present invention, the communication module further generates a color temperature command signal based on the command, and the PWM unit determines the duty ratio of the sub-pulse modulation signals in the first composite pulse modulation signal and the second composite pulse modulation signal based on the color temperature command signal, thereby determining the color temperature of the illumination light.

[0015] In a preferred embodiment of the present invention, the external device is a smartphone.

[0016] In a preferred embodiment of the present invention, the communication module is a short-range wireless communication (Bluetooth: registered trademark) module.

[0017] In a preferred embodiment of the present invention, the communication module further generates a flash function control signal based on the command, and the PWM unit determines whether to turn on or off the flash frequency of the illumination light based on the flash function control signal.

[0018] In a preferred embodiment of the present invention, the communication module further generates a timed period signal based on the command for a user to remotely select a flash function, and the lamp flashes for a certain period of time before restoring general lighting function. [Effects of the Invention]

[0019] As described above, the present invention has the following advantages. 1. The adjustable flash frequency LED lamp of the present invention allows the user to remotely select low-frequency flash frequencies to generate specific effects beneficial to the user. 2. The adjustable flash frequency LED lamp of the present invention allows users to remotely select on and off the flash function and restore the lamp's general lighting function. 3. The adjustable flash frequency LED lamp of the present invention allows users to remotely select the time duration of the flash function, and the lamp will flash for a certain period of time before restoring general lighting function.

[0020] Other objects, configurations and effects of the present invention will become apparent from the following detailed description of the preferred embodiments of the present invention. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a block diagram illustrating an LED lamp with adjustable flash frequency according to one embodiment of the present invention. [Figure 2] 2 is a waveform diagram of a first composite pulse modulated signal (or a second composite pulse modulated signal) illustrating the adjustable flash frequency LED lamp shown in FIG. 1. FIG. [Figure 3] FIG. 2 is a schematic diagram illustrating a configuration in which the LED lamp with adjustable flash frequency shown in FIG. 1 is controlled by a smartphone. [Figure 4] This is a schematic diagram showing the brightness selection bar, color temperature selection bar and flash frequency selection bar on the APP operation interface, allowing users to select the light brightness, color temperature and flash frequency. DETAILED DESCRIPTION OF THE INVENTION

[0022] The following describes in detail the embodiments of the present invention, but the present invention is not limited to these, and various modifications are possible within the scope of the description. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention.

[0023] FIG. 1 is a block diagram showing an LED lamp with adjustable flash frequency according to one embodiment of the present invention.

[0024] The LED lamp 100 with adjustable flash frequency according to the present invention includes a rectifier unit 110, a power conversion circuit 120, a PWM unit 130, an LED module 140, and a communication module 150 (see FIG. 1).

[0025] The rectifier unit 110 is connected to an AC power source V AC Input DC power supply V IN The amplifier is equipped with a full-wave rectifier circuit or a half-wave rectifier circuit for converting the

[0026] The power conversion circuit 120 is connected to an input DC power supply V IN The output DC power supply V OUT The power converter is a switch-type step-up power converter circuit or a switch-type step-down power converter circuit for converting the power

[0027] The PWM unit 130 outputs a dimming command signal S DIM , color temperature command signal S CCT , and the flash frequency command signal S FLCK Based on the voltage peak value V OUT The first composite pulse modulated signal V is CPWM1 and the second composite pulse modulated signal V CPWM2 is used to generate

[0028] The LED module 140 receives the first composite pulse modulated signal V CPWM1 and the second composite pulse modulated signal V CPWM2 The first composite pulse modulation signal V is used to determine the brightness, color temperature, and flash frequency of the light emitted by the light source. CPWM1 (or the second composite pulse modulated signal V CPWM2 ) is shown in the waveform diagram of the first composite pulse modulation signal V CPWM1 The active period includes an active period and an inactive period having a period T1, and each active period includes a sub-pulse signal. The period of the sub-pulse signal is T2, and T1 is longer than 1 / 60 seconds and T2 is shorter than 1 / 60 seconds.

[0029] In detail, the first composite pulse modulation signal V CPWM1 The duty ratio of the sub-pulse signal determines the brightness of the first color light (e.g., white light) LED strip light in the LED module 140, and the second composite pulse modulation signal V CPWM2 The duty ratio of the sub-pulse signal determines the brightness of the second color LED strip light (e.g., yellow light) in the LED module 140. In this way, the first color LED strip light and the second color LED strip light are combined to generate illumination light having a specified brightness and color temperature. In addition, the period T1 is used to determine the flash frequency of the illumination light, and is preferably 60H. Z is less than.

[0030] The communication module 150 may be a Bluetooth communication module, which receives commands from an external device such as a smartphone and transmits a corresponding dimming command signal S DIM , color temperature command signal S CCT , and the flash frequency command signal S FLCK 1. In a possible embodiment, an operation interface for a user to remotely control the adjustable flash frequency LED lamp 100 is provided by an application program (APP) of a smartphone. For example, the operation interface is provided with a brightness selection bar, a color temperature selection bar, and a flash frequency selection bar, allowing the user to select the light brightness, light color temperature, and flash frequency. Referring to FIGS. 3 and 4 together, FIG. 3 is a schematic diagram of a smartphone 200 controlling the adjustable flash frequency LED lamp 100 shown in FIG. 1. FIG. 4 is a schematic diagram of an operation interface 210 of the APP provided with a brightness selection bar 211, a color temperature selection bar 212, and a flash frequency selection bar 213, allowing the user to select the light brightness, color temperature, and flash frequency. This allows the user to easily control the light brightness, light color temperature, and flash frequency of the adjustable flash frequency LED lamp 100.

[0031] In a possible embodiment, the operation interface 210 is provided with a flash switch control bar (not shown) for the user to select whether to turn on or off the flash function, and the communication module 150 enables or disables a flash function control signal (not shown) based on the selection. If the user selects on, the communication module 150 enables the flash function control signal based on the command, and the PWM unit 130 generates a first composite pulse modulation signal V CPWM1 and the second composite pulse modulated signal V CPWM2 and the illumination light generates the flash frequency. If the user selects off, the communication module 150 disables the flash function control signal based on the command, and the PWM unit 130 generates a first composite pulse modulation signal V based on the disabled flash function control signal. CPWM 1 and 2 composite pulse modulated signals V CPWM2 10 as the working period, and turning off the flash frequency of the illumination light, the adjustable flash frequency LED lamp 100 will restore its general lighting function.

[0032] In a possible embodiment, the operation interface 210 is provided with a flash timing bar (not shown) for the user to set a time period for the flash function. After the user sets the time period, the illumination light of the adjustable flash frequency LED lamp 100 will flash for the time period and then resume the general illumination function.

[0033] It is also known that certain low-frequency flashes produce certain effects in users. For example, theta waves (4H Z ~7H Z ) deeply relaxes the body, stimulates deep memories, and strengthens long-term memories. Z ~14H Z ) accelerates brain activity, making it smooth and sharp. Z ~30H Z) improves attention and has a positive effect on the development of cognitive behavior. Z Flashes of cereals have been shown to reduce beta amyloid plaques associated with Alzheimer's disease in the brains of mice, thus helping humans.

[0034] Although the present invention has been described above using the embodiments, the technical scope of the present invention is not limited to the scope described in the above embodiments. It will be apparent to those skilled in the art that various modifications and improvements can be made to the above embodiments. It is clear from the claims that such modifications and improvements can also be included within the technical scope of the present invention. [Explanation of symbols]

[0035] 100 LED lamps with adjustable flash frequency 110 Rectification unit 120 Power Conversion Circuit 130 PWM unit 140 LED modules 150 Communication Module 200 smartphones 210 Operation Interface 211 Brightness selection bar 212 Color temperature selection bar 213 Flash Frequency Selection Bar

Claims

1. a power conversion circuit for converting an input DC power source into an output DC power source; a PWM unit for generating a first composite pulse modulated signal and a second composite pulse modulated signal according to a flash frequency command signal while the output DC power source is being energized; an LED module for determining a flash frequency of illumination light based on control of the first composite pulse-modulated signal and the second composite pulse-modulated signal; a communications module for generating the flash frequency command signal based on commands received from an external device; In the control, the period (T1) of the first composite pulse modulation signal is used to determine the flash frequency of the illumination light.

2. 2. The LED lamp with adjustable flash frequency as claimed in claim 1, wherein the first composite pulse modulated signal and the second composite pulse modulated signal both have periods, each of the periods having an active period and an inactive period, and each of the active periods has all sub-pulse signals.

3. 3. The LED lamp with adjustable flash frequency as claimed in claim 2, wherein the period is shorter than 1 / 60 seconds.

4. 2. The LED lamp with adjustable flash frequency as claimed in claim 1, wherein the power conversion circuit is a switched step-up power conversion circuit or a switched step-down power conversion circuit.

5. 3. The LED lamp with adjustable flash frequency as claimed in claim 2, wherein the communication module further generates a dimming command signal based on the command, and the PWM unit determines the duty ratios of the sub-pulse modulation signals in the first composite pulse modulation signal and the second composite pulse modulation signal based on the dimming command signal, thereby determining the brightness of the illumination light.

6. 3. The LED lamp with adjustable flash frequency as claimed in claim 2, wherein the communication module further generates a color temperature command signal according to the command, and the PWM unit determines the duty ratio of the sub-pulse modulation signals in the first composite pulse modulation signal and the second composite pulse modulation signal according to the color temperature command signal, thereby determining the color temperature of the illumination light.

7. The LED lamp with adjustable flash frequency according to claim 1 , wherein the external device is a smartphone.

8. 2. The LED lamp with adjustable flash frequency according to claim 1, wherein the communication module is a short-range wireless communication module.

9. 2. The LED lamp with adjustable flash function as claimed in claim 1, wherein the communication module further generates a flash function control signal based on the command, and the PWM unit determines whether to turn on or off the flash frequency of the illumination light based on the flash function control signal.

10. 2. The LED lamp with adjustable flash frequency as claimed in claim 1, wherein the communication module further generates a timed period signal based on the command for a user to remotely select the flash function, and the lamp flashes for a certain period of time before restoring the general lighting function.

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