KR20200077277A - Voice recognition led dimming converter - Google Patents

Abstract

The present invention relates to a voice recognition LED dimming converter. Provided is a voice recognition LED dimming converter including: a dimming control unit that generates a dimming control voltage according to user′s voice information; a dimming converter unit for generating a driving current corresponding to the dimming control voltage; and an LED lamp unit driven in response to the driving current.

Description

VOICE RECOGNITION LED DIMMING CONVERTER

The present invention relates to a voice recognition LED dimming converter, and to a voice recognition LED dimming converter capable of controlling the operation of the LED through voice.

As mankind discovered the fire, a bright environment was created even on a dark night, and lighting devices were developed to more efficiently control this bright environment. Previous lighting devices mainly used incandescent and fluorescent lamps as light sources. Through technology development, LED (Light Emitting Diode) is used as a light source for lighting devices. Due to the advantages of LEDs having high illuminance, low power consumption, and semi-permanent life, it is common for most lighting devices to use LEDs as light sources in recent years.

The lighting equipment using such LEDs is still structurally and functionally technologically developed, and one of the functionally developed technologies is a dimming operation. The dimming operation prevents unnecessary power consumption by selectively flashing the LED used as a light source, and protects the user's eyesight.

Hereinafter, the present invention to be described will be described with respect to a dimming converter capable of controlling a dimming operation through voice control.

Accordingly, an object of the present invention is to provide a speech recognition LED dimming converter.

Another object of the present invention is to provide a voice recognition LED dimming converter that generates a control voltage and a driving current corresponding to an LED operation by analyzing voice information of a user.

The problem of the present invention is not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention for achieving the objects and other features of the present invention, a dimming control unit for generating a control voltage for dimming according to the voice information of the user; A dimming converter unit for generating a driving current corresponding to the dimming control voltage; And an LED lamp unit driven in response to the driving current.

In the present invention, a switch control unit including a switch and generating an on/off control voltage according to a switching operation is further included, and the dimming converter receives the drive current in response to the on/off control voltage and the dimming control voltage. It is preferable to be characterized by generating.

In the present invention, the dimming control unit comprises: a voice receiving unit that receives the user's voice information and converts it into digital information; A voice analysis unit for comparing the digital information transmitted through the reception unit with pre-stored function information; And a pulse generator for generating the dimming control voltage having a pulse width corresponding to each output signal of the voice analyzer.

In the present invention, the voice analysis unit includes a storage unit for storing the pre-stored function information; And a comparison unit for comparing the function information stored in the storage unit with the digital information.

In the present invention, it is preferable to further include an auxiliary power supply for supplying power to the dimming control unit during the dimming operation.

In the present invention, the dimming converter unit, an input unit for receiving the on / off control voltage; A line filter unit connected to the output terminal of the input unit to remove noise of commercial power input to the input unit; A rectifying unit for rectifying the commercial power output to the line filter unit and converting the commercial power into pulsating power; A power factor improving unit having a transformer for switching by a first control circuit that receives the pulsating power of the rectifying unit, and outputs rated power with improved power factor by transforming and transforming the pulsating power through the switching operation; A constant voltage unit for direct current output from the transformer; And it is preferable to include a converter for converting the voltage output from the constant voltage unit and the control voltage for dimming to generate a driving current corresponding thereto.

In the present invention, it is preferable that the control voltage for dimming is a DC type voltage having different pulse widths according to voice information of a user.

The voice recognition LED dimming converter according to the present invention provides the following effects.

The present invention has an effect of controlling the LED lamp smarter by controlling the dimming operation of the LED through voice.

The present invention has an effect of reducing malfunction and unnecessary power consumption due to undesired voice information by driving the LED by recognizing only voice information corresponding to function information among user voice information.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a block diagram illustrating a voice recognition LED dimming converter according to an embodiment of the present invention.
2 is a circuit diagram illustrating the dimming converter unit and the dimming control unit of FIG. 1.

Since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be interpreted as being limited by the embodiments described in the text. That is, since the embodiments can be variously changed and have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing technical ideas. In addition, the purpose or effect presented in the present invention does not mean that a specific embodiment should include all or only such an effect, and the scope of the present invention should not be understood as being limited thereby.

Meanwhile, the meaning of terms described in the present application should be understood as follows.

Terms such as "first" and "second" are for distinguishing one component from other components, and the scope of rights should not be limited by these terms. For example, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.

When a component is said to be "connected" to another component, it may be understood that other components may exist in the middle, although it may be directly connected to the other component. On the other hand, when a component is said to be "directly connected" to another component, it should be understood that no other component exists in the middle. On the other hand, other expressions describing the relationship between the components, that is, "between" and "immediately between" or "adjacent to" and "directly neighboring to" should be interpreted similarly.

Singular expressions are to be understood as including plural expressions unless the context clearly indicates otherwise, and terms such as “comprises” or “have” are used features, numbers, steps, actions, components, parts or the like. It is to be understood that a combination is intended to be present, and should not be understood as pre-excluding the existence or addition possibility of one or more other features or numbers, steps, operations, components, parts or combinations thereof.

All terms used herein have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains, unless otherwise defined. The terms defined in the commonly used dictionary should be interpreted to be consistent with the meanings in the context of the related art, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in the present application.

The present invention can be applied to various changes and can have various forms, and the embodiments are described in detail in the text. However, this is not intended to limit the present invention to a specific disclosure form, it should be understood to include all modifications, equivalents, or substitutes included in the spirit and scope of the present invention.

The same reference numbers in each drawing, especially the number of tens and ones, or the same number of tens, ones, and alphabets refer to members having the same or similar functions, and each of the drawings unless otherwise specified. The member indicated by the reference number can be regarded as a member conforming to these standards.

The terms used herein are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, terms such as ~include~ or ~consist of~ are intended to designate the existence of features, numbers, steps, operations, components, parts or combinations thereof described in the specification, and one or more other features. It should be understood that the existence or addition possibilities of fields or numbers, steps, actions, components, parts or combinations thereof are not excluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains. Terms, such as those defined in a commonly used dictionary, should be interpreted as having meanings consistent with meanings in the context of related technologies, and should not be interpreted as ideal or excessively formal meanings unless explicitly defined in the present application. Does not.

~ 1 ~, ~ 2 ~, etc. described in this specification will only refer to different components, and are not limited to the order in which they are manufactured, and the names in the detailed description and claims of the invention It may not match.

1 is a block diagram illustrating a voice recognition LED dimming converter according to an embodiment of the present invention.

Referring to FIG. 1, the voice recognition LED dimming converter includes a switch control unit 100, a dimming converter unit 200, an LED lamp unit 300, and a dimming control unit 400.

The switch control unit 100 includes a switch and is a configuration for generating an on/off control voltage P_CTR according to a switching operation. Here, the on/off control voltage P_CTR is input to the dimming converter unit 200 and the on and off operations of the LED lamp unit 300 are controlled in response to the on/off control voltage P_CTR.

The dimming converter unit 200 is configured to generate a driving current corresponding to an on/off control voltage P_CTR and a control voltage for dimming S_CTR to be described later. As described above, the on/off control voltage P_CTR is a voltage for controlling the on/off operation of the LED lamp unit 300, and the dimming control voltage S_CTR according to an embodiment of the present invention is on/off operation This is the voltage for controlling the dimming operation.

The LED lamp unit 300 is configured to drive the light source in response to the driving current I_OP generated by the dimming converter unit 200, and the LED lamp unit 300 corresponds to the on/off control voltage P_CTR. The on/off operation is controlled in response to the driving current I_OP, and the on/off operation and the dimming operation are controlled in response to the driving current I_OP corresponding to the dimming control voltage S_CTR.

Subsequently, the dimming control unit 400 is configured to generate a dimming control voltage (S_CTR) according to the user's voice information, and includes a voice receiving unit 410, a voice analysis unit 420, and a pulse generating unit 430. Includes.

First, the voice receiver 410 is configured to receive voice information of a user and convert it into digital information, and the voice receiver 410 can receive voice information of the user through a configuration such as a microphone.

The voice analysis unit 420 is a configuration for comparing digital information transmitted through the voice reception unit 410 and pre-stored function information, and includes a storage unit 421 and a comparison unit 422.

Here, the storage unit 421 is configured to store pre-stored function information, for example, function information that is digital information corresponding to voice information for “off”, “on”, “bright”, and “dark” is stored. It may be. In addition, the comparison unit 422 compares the pre-stored function information and digital information corresponding to the user's voice information, and when matching, the digital information is transmitted to the pulse generator 430.

So, the voice analysis unit 420 transmits the voice information of the user corresponding to the function information, such as “off”, “on”, “bright”, and “dark”, to the pulse generator 430, It is possible to block transmission of voice information that is not stored in the function information, so that the pulse generator 430 receives only voice information corresponding to the function information.

Voice recognition LED dimming converter according to an embodiment of the present invention can reduce the malfunction and unnecessary power consumption due to incorrect voice information through such a configuration.

Next, the pulse generator 430 is configured to generate a dimming control voltage S_CTR having a pulse width corresponding to each output signal of the speech analyzer 420. In other words, the pulse generator 430 generates a dimming control voltage (S_CTR) having a pulse width corresponding to each of "not lit", "lit", "bright", and "dark".

The voice recognition LED dimming converter according to an embodiment of the present invention can perform on/off operation and dimming operation of the LED lamp unit 300 through voice information of a user, and can block unwanted voice information. Therefore, it is possible to prevent the resulting malfunction and minimize the power consumption.

FIG. 2 is a circuit diagram for explaining the dimming converter unit 200 and the dimming controller 400 of FIG. 1.

Referring to FIG. 2, the dimming converter unit 200 includes an input unit 210, a line filter unit 220, a rectifying unit 230, a power factor improving unit 240, a constant voltage unit 250, and conversion Includes part 260.

The input unit 210 includes an output terminal of the switch control unit 100 of FIG. 1, that is, a power voltage terminal WH, BK to which commercial power is input, and a ground power terminal GND. For reference, the on/off control voltage P_CTR of FIG. 1 means power of the power supply voltage terminals WH and BK of the switch control unit 100.

Subsequently, when the overvoltage is input to the commercial power supply, the power supply voltage terminal BK of the input unit 210 is cut off to connect the fuse F1 to protect the circuit connected to the rear end, and the fuse F1 is overvoltage to the commercial power supply. That is, when a surge voltage is applied, a varistor (MOV1) for clamping and blocking it is connected.

The line filter unit 220 is configured to remove conductive noise included in commercial power input through the power voltage terminal WH. The line filter unit 220, the input unit 210 is a capacitor (C18) connected between the output terminal (BK) of the switch control unit 100, that is, a power supply voltage terminal (WH, BK) to which commercial power is input, and this capacitor ( Line filter LF1 connected to C18), three capacitors C1, C2, C10 biased on the output side of this line filter LF1, line filter LF3 connected to the rear end thereof, and this line filter It consists of a capacitor (C3) connected to the output terminal of (LF3).

Here, the power supply voltage terminal (GND) is connected between the two capacitors (C1, C2) connected in series, and the conductive noise included in the commercial power is transferred to and removed from the power supply voltage terminal (GND).

The rectifying unit 230 is a component for rectifying commercial power output from the line filter unit 220 and converting it into pulsating power. The rectifying unit 230 is composed of two diodes D1 and D3 connected to one side of the output terminal of the line filter unit 220 and two diodes D2 and D4 connected to the other side.

The power factor improving unit 240 is configured to supply a constant current to the LED lamp unit 300 by improving the power factor by receiving the pulsating power of the rectifying unit 230. The power factor improving unit 240 controls the switching of the transformer T1 so that the rated power is output to the output terminal, and the transformer T1 improves the power factor by transforming the pulsating power output from the rectifying unit 230 through a switching operation. It is possible to output with the rated power.

Here, the power factor improving unit 240 includes a switching element Q1 for switching on and off the transformer T1, a first control circuit U1 for controlling switching of the switching element Q1, and a first control circuit ( The voltage supplied to the first control circuit U1 by sensing the voltage waveform of the start resistor R2 and the capacitor C9 providing the start voltage for the initial driving of U1), and the pulse power supply output from the rectifier 230 The detection circuit (R1, R3A, C6A), the auxiliary coil (t1) wound on the primary side of the transformer (T1) and magnetically coupled, and the voltage induced by the auxiliary coil (t1) are converted to driving current by converting it into a constant voltage 1 The driving circuits (D12, L2A, R21A, C14, ZD1, Q3, R13) provided to the control circuit (U1) and the auxiliary coil (t1) detect the current induced by the switching of the transformer (T1) and detect the first A resistor R3 provided to the control circuit U1, a snubber D9, R12, C11 to protect by limiting the strength of the back electromotive force induced on the primary side of the transformer T1 according to switching, and the first control circuit And peripheral elements connected to drive the U1.

Therefore, the first control circuit U1 can control the switching of the switching element Q1 to improve the power factor by matching the waveform of the current induced by the transformer T1 with the waveform of the voltage output from the rectifier 230. Do.

In more detail, the first control circuit U1 is relatively low frequency in the middle point where the intensity of the voltage is high in the voltage waveform of the rectifying unit 230 sensed by the voltage sensing circuits R1, R3A, and C6A. On/off switching of the switching element (Q1), and at a time when the voltage strength is weak, the switching element (Q1) is switched on/off at a relatively high frequency to connect currents induced in each moment in the transformer (T1) according to switching. It improves the power factor by making the current waveform have the same period and the same shape as the voltage waveform.

Next, the constant voltage unit 250 directs the output power induced on the secondary side of the transformer T1 to DC and transmits it to the converter 260 to be described later. The constant voltage unit 250 includes diodes D7 and D10 for rectifying the output power of the transformer T1, and resistors R23 and capacitors as snubbers to limit and protect the over voltage from being induced on the secondary side of the transformer T1. (C19). In addition, the constant voltage unit 250 includes peripheral elements for supplying the DC voltage of the secondary side of the transformer T1 to the constant voltage to supply the third control circuit U3.

In particular, the output terminal of the constant voltage unit 250 is composed of first to third resistors R18, R4, and R17 connected in series, and the control voltage S_CTR for dimming to be described later is the second resistor R4 and the third. It is input through the PWM input terminal 12 between the resistors R17.

Next, the conversion unit 260 converts the voltage output from the constant voltage unit 250 and the dimming control voltage (S_CTR) input to the PWM input terminal 12 to generate a driving current corresponding thereto, and input It includes a third control circuit (U3) for generating a drive current according to the pulse width of the signal to be, and peripheral circuits for driving the third control circuit (U3), the drive current is the output terminal (OT1, OT2, OT3, OT4) ) Is transmitted to the LED lamp unit 300.

Here, the voltage input to the PWM input terminal 12 corresponds to the dimming control voltage S_CTR, and the dimming control voltage S_CTR has a DC voltage having a predetermined pulse width according to a user's voice. Accordingly, the third control circuit U3 controls the dimming operation of the LED lamp unit 300 in response to a DC voltage having a predetermined pulse width, and the present invention provides a flicker phenomenon according to the dimming operation through a control method of this structure. It is possible to remove.

Subsequently, the dimming control unit 400 is configured to generate a dimming control voltage S_CTR according to the user's voice information and output it to the PWM input terminal 12. The second control circuit U2 and the second control circuit U2 ). Here, the second control circuit (U2) is a pin for connection to the voice receiving unit 410 of Figure 1 (TXD, RXD), a pin connected to the power supply voltage terminal (VDD) and the ground voltage terminal (GND), and dimming Includes a pin to output the control voltage (S_CTR).

The dimming control unit 400 generates a control voltage for dimming (S_CTR) according to the user's voice information, as described in FIG. 1, for example, the user of "off", "on", "bright", "dark" When voice information is input, it is possible to compare it with pre-stored function information, and if predetermined voice information is input, it is possible to generate it as a DC type dimming control voltage (S_CTR) having a corresponding pulse width.

For example, the control voltage for dimming (S_CTR) may be a pulse signal transitioning from logic high to logic low in response to “off”, and a signal transitioning from logic low to logic high in response to “off”, , May be a signal having different pulse widths in response to “light” and “dark”.

Finally, the auxiliary power supply unit 500 is configured to supply power to the dimming control unit 400 during a dimming operation, and includes a fourth control circuit U4 and peripheral circuits for driving the fourth control circuit U4. .

In summary, the voice recognition LED dimming converter according to an embodiment of the present invention analyzes the voice information of a user, and when predetermined function information is input, the DC type dimming control voltage (S_CTR) having different pulse widths for the corresponding voice information. ) To perform on/off operation and dimming operation of the LED lamp unit 300, thereby reducing the malfunction and unnecessary power consumption by smart control of the LED lamp unit 300 and unwanted voice information. Do.

The embodiments described in the present specification and the accompanying drawings are merely illustrative of some of the technical spirit included in the present invention. Therefore, the embodiments disclosed in the present specification are not intended to limit the technical spirit of the present invention, but to explain the present invention, it is obvious that the scope of the technical spirit of the present invention is not limited by these embodiments. Within the scope of the technical spirit included in the specification and drawings of the present invention, modifications and specific embodiments that can be easily inferred by those skilled in the art should be interpreted as being included in the scope of the present invention.

100: switch control unit 200: dimming converter unit
300: LED lamp unit 400: Dimming control unit

Claims (7)

A dimming control unit that generates a dimming control voltage according to the user's voice information;
A dimming converter unit for generating a driving current corresponding to the dimming control voltage; And
And an LED lamp unit driven in response to the driving current
Voice recognition LED dimming converter.
According to claim 1,
It includes a switch and further includes a switch control unit for generating an on/off control voltage according to the switching operation,
The dimming converter is a voice recognition LED dimming converter, characterized in that for generating the drive current in response to the on/off control voltage and the dimming control voltage.
According to claim 1,
The dimming control unit,
A voice receiving unit which receives the user's voice information and converts it into digital information;
A voice analysis unit for comparing the digital information transmitted through the reception unit with pre-stored function information; And
And a pulse generator for generating the dimming control voltage having a pulse width corresponding to each output signal of the voice analyzer.
Voice recognition LED dimming converter.
According to claim 3,
The voice analysis unit,
A storage unit for storing the pre-stored function information; And
And a comparison unit for comparing the function information stored in the storage unit with the digital information
Voice recognition LED dimming converter.
According to claim 3,
Further comprising an auxiliary power supply for supplying power to the dimming control unit during the dimming operation
Voice recognition LED dimming converter.
According to claim 2,
The dimming converter unit,
An input unit for receiving the on/off control voltage;
A line filter unit connected to the output terminal of the input unit to remove noise of commercial power input to the input unit;
A rectifying unit for rectifying the commercial power output to the line filter unit and converting the commercial power into pulsating power;
A power factor improving unit having a transformer that is switched by a first control circuit that receives the pulsating power of the rectifying unit, and outputs rated power with improved power factor by transforming and transforming the pulsating power through the switching operation;
A constant voltage unit for direct current output from the transformer; And
And a conversion unit for converting the voltage output from the constant voltage unit and the control voltage for dimming to generate a driving current corresponding thereto.
Voice recognition LED dimming converter.
According to claim 1,
The dimming control voltage is a voice recognition LED dimming converter, characterized in that the voltage of the DC type having a different pulse width according to the user's voice information.

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