CN210007956U - music light circuit and music light device - Google Patents
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- CN210007956U CN210007956U CN201920465570.6U CN201920465570U CN210007956U CN 210007956 U CN210007956 U CN 210007956U CN 201920465570 U CN201920465570 U CN 201920465570U CN 210007956 U CN210007956 U CN 210007956U
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Abstract
In the music light circuit and the music light device provided by the embodiment of the invention, the music light circuit comprises a power amplification module for receiving a audio signal output by an audio signal source and performing power amplification processing on a 0 audio signal to output a corresponding 1 audio amplification signal, a 5 signal processing module for receiving a second voltage source signal output by a second voltage source and the 2 audio amplification signal and outputting a corresponding 4 voltage signal according to the 3 audio amplification signal, and a display module for receiving the 6 voltage signal and displaying corresponding light brightness according to the voltage signal, wherein the audio signal provided by the audio signal source is processed to provide a voltage signal corresponding to a audio signal to the display module, so that the brightness of the display module varies along with the audio signal, thereby realizing the effect that light follows music.
Description
Technical Field
The utility model belongs to the technical field of light, especially, relate to kinds of music light circuit and music light device.
Background
The lamps and lanterns of can adjusting luminance can provide different illumination demands for people as kinds of emerging products, and along with the development of science and technology and the improvement of people's standard of living, people have not only been restricted to the illumination function to the requirement of light, for example, in some LED intelligence illumination lamps and lanterns, adopt all kinds of lamp pearls to form banks usually, all kinds of lamp pearls demonstrate different light effects according to different instructions to be applied to commercial fields such as notice lamp house, artistic stage with it.
However, the existing intelligent lighting lamp usually requires a user to edit a control command before use to control the lamp, and the threshold used by a common user is high, so that the intelligent lighting lamp cannot be used in daily life in .
SUMMERY OF THE UTILITY MODEL
The utility model provides an music light circuit and music light device aims at solving current intelligent lighting lamps and lanterns and needs the user to edit control command and control lamps and lanterns before using usually, and it is higher to use threshold to ordinary user, can't general problem of being applied to in daily life.
The embodiment of the utility model provides an kinds of music light circuit is connected with audio signal source, voltage source and second voltage source, music light circuit includes:
the power amplification module is connected with the audio signal source and the voltage source, receives a th audio signal output by the audio signal source and a th voltage source signal output by the voltage source, and performs power amplification processing on the th audio signal to output a corresponding th audio amplification signal;
a th signal processing module connected to the power amplifying module, the th signal processing module receiving the second voltage source signal outputted by the second voltage source and the th audio amplifying signal and outputting a corresponding th voltage signal according to the th audio amplifying signal, and
the th display module is connected to the th signal processing module, and the th display module receives the th voltage signal and displays the corresponding light brightness according to the th voltage signal.
Optionally, the power amplification module further receives the second audio signal, and performs power amplification processing on the second audio signal to output a corresponding second audio amplified signal;
the music light circuit further includes:
the second signal processing module is connected with the power amplification module, receives the second audio amplification signal and the second voltage source signal, and outputs a corresponding second voltage signal according to the second audio amplification signal; and
and the second display module is connected with the second signal processing module, receives the second voltage signal and displays corresponding lamplight brightness according to the second voltage signal.
Optionally, the power amplification module includes an audio power amplification chip, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, and a filtering unit for filtering the audio signal;
a second terminal of the second filter unit is connected to the audio signal source, a second terminal of the filter unit is connected to a second audio signal input terminal of the audio power amplifier chip, a reference voltage signal terminal of the audio power amplifier chip is connected to a second terminal of the fourth capacitor, a power terminal of the audio power amplifier chip is connected to a second terminal of the seventh capacitor, a ground terminal of the audio power amplifier chip, a second terminal of the fourth capacitor and a second terminal of the seventh capacitor are connected to ground, a second 4 audio amplifier signal output terminal of the audio power amplifier chip is connected to the second signal processing module, a second power supply terminal of the audio power amplifier chip, a second terminal of the second capacitor and a second terminal of the third capacitor are connected to the third voltage source, a second power supply terminal of the audio power amplifier chip, a second terminal of the second capacitor and a second terminal of the third capacitor are connected to the second power supply terminal of the audio power amplifier chip, a second terminal of the second capacitor and a second terminal of the third capacitor are connected to the ground, a second terminal of the audio power amplifier chip is connected to the second power supply terminal of the fifth capacitor and a second terminal of the audio power amplifier chip is connected to the second capacitor 8536.
Optionally, the th filtering unit comprises a th resistor and a th capacitor;
a terminal of the th resistor is connected to a terminal of the th filter unit, a second terminal of the th resistor is connected to a terminal of the th capacitor, and a second terminal of the th capacitor is connected to a second terminal of the th filter unit.
Optionally, the th signal processing module includes a second resistor, a third resistor, a fourth resistor, and a th triode;
the th end of the second resistor is connected with the power amplification module, the second end of the second resistor, the th end of the third resistor and the base of the th triode are connected in common, the second end of the third resistor, the th end of the fourth resistor and the collector of the th triode are connected in common to the th display module, the second end of the fourth resistor is connected with the second voltage source, and the emitter of the th triode is grounded.
Optionally, the th display module comprises:
th light unit connected with the signal processing module, the th light unit displaying corresponding tube brightness according to the th voltage signal, and
the th resistor unit is connected with the th light unit, and the th resistor unit is used for limiting the current of the th light unit.
Optionally, the th lighting unit includes N light emitting diode lamp strings, the N light emitting diode lamp strings are connected in parallel, and each light emitting diode lamp string is formed by sequentially connecting a plurality of light emitting diodes in series;
the th resistor unit comprises N fifth resistors, wherein the N fifth resistors are respectively connected with the N LED lamp strings in series, N is not less than 1 and is an integer.
Optionally, the power amplifying module further includes:
and the second filtering unit is used for filtering a second audio signal output by the audio signal source, wherein the th end of the second filtering unit is connected with the audio signal source, and the second end of the second filtering unit is connected with the second audio signal input end of the audio power amplification chip.
Optionally, the second signal processing module includes: the fourth resistor is connected with the fourth resistor;
an th end of the sixth resistor is connected to the power amplifying module, a second end of the sixth resistor, a th end of the seventh resistor and a base of the second triode are connected in common, a collector of the second triode, a second end of the seventh resistor and a th end of the eighth resistor are connected in common, a second end of the eighth resistor is connected to the second voltage source, and an emitter of the second triode is grounded.
The present application further provides kinds of music light device, the music light device includes:
an audio port;
voltage port;
a second voltage port; and
a music light circuit as claimed in any of the above .
In music lamp circuit and music lamp device provided by the application, the music lamp circuit comprises a power amplification module which is connected with the audio signal source and the th voltage source, receives th audio signal output by the audio signal source and the th voltage source signal output by the th voltage source, and performs power amplification processing on the th audio signal to output a corresponding th audio amplification signal, a th signal processing module which is connected with the power amplification module, receives the second voltage source signal output by the second voltage source and the th audio amplification signal, and outputs a corresponding th voltage signal according to the th audio amplification signal, and a th display module which is connected with the 4684 th signal processing module, receives the th voltage signal, displays corresponding lamp brightness according to the 460 th voltage signal, and realizes that the lamp can not be used by a conventional intelligent lamp control device before the lighting control device is used, so that the lighting effect of the lamp 585924 can not be changed along with the audio signal before the lighting effect of the lighting control device is changed by processing the th audio signal provided by the audio signal source to provide 585 th audio signal which can be used in the conventional lamp control device.
Drawings
Fig. 1 is a schematic structural diagram of music light circuits provided by embodiments of the present invention;
fig. 2 is a schematic structural diagram of another embodiments of the music light circuit according to the present invention;
fig. 3 is a schematic structural diagram of another embodiments of the music light circuit according to the present invention;
fig. 4 is a schematic structural diagram of another embodiments of the music light circuit according to the present invention;
fig. 5 is a schematic structural diagram of music lighting devices according to embodiments of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in in detail below with reference to the accompanying drawings and embodiments, it is to be understood that the embodiments described herein are only for explaining the present invention and are not intended to limit the present invention, and meanwhile, in the description of the present invention, the terms "", "second", etc. are only used for distinguishing the description, and are not intended to indicate or imply relative importance.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of more or more other features, integers, steps, operations, elements, components, and/or groups thereof.
As used in this specification and the appended claims, the singular forms "", "" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should also be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of or more of the associated listed items.
In order to explain the technical solution of the present application, the following description will be given by way of specific examples.
Fig. 1 is the structural schematic diagram of music light circuits provided by embodiments of the present invention, as shown in fig. 1, the music light circuit in this embodiment is connected to the audio signal source 10, the voltage source 20 and the second voltage source 30, and the music light circuit includes:
the power amplification module 40 is connected with the audio signal source 10 and the voltage source 20, and the power amplification module 40 receives a th audio signal output by the audio signal source and performs power amplification processing on the th audio signal to output a corresponding th audio amplified signal;
an th signal processing module 51 connected to the power amplifying module 40, the th signal processing module 51 receiving the second voltage signal outputted from the second voltage source 30 and the th audio amplifying signal and outputting a corresponding th voltage signal according to the th audio amplifying signal, and
the th display module 61 is connected to the th signal processing module 51, and the th display module 61 receives the th voltage signal and displays the corresponding lamp brightness according to the th voltage signal.
In this embodiment, after receiving the th audio signal output by the audio signal source 10, the power amplification module 40 performs power amplification on the th audio signal, and then outputs a corresponding th audio amplification signal, and after receiving the th audio amplification signal, the signal processing module 51 converts the second voltage source signal output by the second voltage source 30 into an th voltage signal corresponding to the th audio amplification signal, so that the luminance of the display module 61 is driven to change along with the change of the th voltage signal, and the light changes along with the change of the audio signal.
In embodiments, the audio signal source 10 may be an audio or a video played by a display product, the th display module 61 may be an atmosphere lamp disposed at the back of the display, the atmosphere lamp may be formed by connecting three color leds in series, or a string of lights composed of color leds according to the needs of a user, and lights with rhythm sense identical to the audio or the video may be synchronously emitted through the atmosphere lamp disposed at the back of the display, so that the music and light rhythm is realized, and the user can experience the stereoscopic impression of the space where the user is located, thereby enriching the visual enjoyment of the user.
Fig. 2 is a schematic structural diagram of another embodiments of the present invention, in which the audio signal source 10 is further configured to output a second audio signal;
the power amplification module 40 further receives the second audio signal, and performs power amplification processing on the second audio signal to output a corresponding second audio amplified signal;
the music light circuit further includes:
the second signal processing module 52 is connected to the power amplifying module 40, and the second signal processing module 52 receives the second audio amplifying signal and the second voltage source signal, and outputs a corresponding second voltage signal according to the second audio amplifying signal; and
and the second display module 62 is connected to the second signal processing module 52, and the second display module 62 receives the second voltage signal and displays the corresponding lamp brightness according to the second voltage signal.
In this embodiment, the th audio signal and the second audio signal may be a left channel signal and a right channel signal of the audio signal provided by the audio signal source 10, respectively, the left channel signal and the right channel signal in the stereo sound output by the electronic device can play the same or different sounds, respectively, a stereo sound change effect from left to right or from right to left is generated, the sound playing sense is clearer and more mellow, and the sound positioning can be accurately determined, and the th display module 61 and the second display module 62 can display the lights corresponding to the left channel signal and the right channel signal synchronously, so that the person can be as if they are in the same scene.
Fig. 3 is a schematic structural diagram of another embodiments of the music light circuit of the present invention, and referring to fig. 3, the th display module 61 in this embodiment includes:
an th light unit 611 connected to the th signal processing module 51, the th light unit 611 displaying corresponding lamp brightness according to the th voltage signal, and
the th resistor unit 612 is connected to the th light unit 611, and the th resistor unit 612 is used for limiting the current of the th light unit 611.
In embodiments, referring to fig. 3, the second display module 62 in this embodiment includes:
the second light unit 621 is connected to the second signal processing module 52, and the second light unit 621 displays corresponding lamp brightness according to the second voltage signal; and
and a second resistor unit 622 connected to the second light unit 621, wherein the second resistor unit 622 is configured to limit a current of the second light unit 621.
Fig. 4 is a schematic structural diagram of another music light circuits according to the present invention, and referring to fig. 4, the power amplification module 40 in this embodiment includes an audio power amplification chip U1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, and an filtering unit 41 for filtering the th audio signal;
a second end of the second filtering unit 41 is connected to the audio signal source 10, a second end of the 0 filtering unit 41 is connected to a 1 st audio signal input end INL of the audio power amplifying chip U, a reference voltage signal end VREF of the audio power amplifying chip U is connected to a 2 nd end of the fourth capacitor C, a power end VDD of the audio power amplifying chip U is connected to a 3 rd end of the seventh capacitor C, a ground end GND of the audio power amplifying chip U, a second end of the fourth capacitor C, and a second end of the seventh capacitor C are connected to ground, a 4 th audio amplified signal output end OUTL + of the audio power amplifying chip U is connected to the 5 th signal processing module 51, a second power end PVDDL of the audio power amplifying chip U, a second end of the second capacitor C, and a second end of the third capacitor C are connected to the second voltage source, a second power end PGNDL of the audio power amplifying chip, a second end pgc of the second capacitor C, a second end of the third capacitor C, a second end pgndc of the audio power amplifying chip and a fifth end pvr of the audio power amplifying chip U are connected to the ground, a second end pgndc of the audio power amplifying chip and a second capacitor C are connected to the ground, a fifth end of the audio power source terminal of the audio power amplifying chip 20.
In embodiments, the model of the audio power amplification chip U1 may be PAM 8003.
In embodiments, referring to fig. 4, the filter unit 41 includes a th resistor R1 and a th capacitor C1;
a th end of the th resistor R1 is connected to a th end of the th filter unit 41, a second end of the th resistor R1 is connected to an th end of the th capacitor C1, and a second end of the th capacitor C1 is connected to a second end of the th filter unit 401.
In embodiments, referring to fig. 4, the signal processing module 51 includes a second resistor R2, a third resistor R3, a fourth resistor R4, and a th transistor Q1;
a terminal of the second resistor R2 is connected to the power amplifying module 40, a second terminal of the second resistor R2, a terminal of the third resistor R3, and a base of the transistor Q1 are commonly connected, a second terminal of the third resistor R3, a terminal of the fourth resistor R4, and a collector of the transistor Q1 are commonly connected to the display module 61, a second terminal of the fourth resistor R4 is connected to the second voltage source 30, an emitter of the transistor Q1 is grounded, in embodiments, the transistor Q1 may be an NPN transistor, a PNP transistor, or a PNP transistor.
In embodiments, the resistance of the second resistor R2 is between 1K Ω -5K Ω in embodiments, as shown in fig. 4, the th light unit 611 includes N LED strings connected in parallel, where N is not less than 1 and N is an integer, and each LED string is formed by sequentially connecting a plurality of LED1 in series;
the th resistor unit 612 includes N fifth resistors R5, wherein the N fifth resistors R5 are respectively connected in series with the N led strings .
In embodiments, the LED light string may be a light bar, which may be an RGB light bar.
In this embodiment, the -th audio signal changes to make the -th audio amplification signal output by the power amplification module 40 change with the 0-th audio signal, at this time, after the base of the 1-th triode Q1 receives the -th audio amplification signal, the current of the base of the -th triode Q1 changes accordingly, as can be known from the operating principle of the triodes, the current of the collector of the triode and the current of the base of the triode are in a proportional amplification relationship, at this time, the current of the collector of the -th triode Q1 changes, so that the divided voltage between the third resistor R3 and the fourth resistor R4 changes, at this time, the -th signal processing module 51 outputs the corresponding -th voltage signal, and finally, the voltage at the two ends of the -th light unit 611 changes with the audio change of the -th audio signal, thereby driving the -th light unit 611 to display the light change corresponding to achieve the effect that the light follows the music.
In embodiments, referring to fig. 4, the power amplification module 40 further comprises:
and the second filtering unit 42 is used for filtering a second audio signal output by the audio signal source, wherein an th end of the second filtering unit 42 is connected with the audio signal source 10, and a second end of the second filtering unit 42 is connected with a second audio signal input end INR of the audio power amplifying chip U1.
In embodiments, the second filter unit 42 includes a second resistor R2 and an eighth capacitor C8, wherein a terminal of the second resistor R2 is connected to a terminal of the second filter unit 42, a second terminal of the second resistor R2 is connected to a terminal of the eighth capacitor C8, and a second terminal of the eighth capacitor C8 is connected to a second terminal of the second filter unit 42.
In embodiments, referring to fig. 4, the second signal processing module 52 includes a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, and a second transistor Q2;
a terminal of the sixth resistor R6 is connected to the power amplification module 40, a second terminal of the sixth resistor R6, a terminal of the seventh resistor R7 and a base of the second transistor Q2 are connected in common, a collector of the second transistor Q2, a second terminal of the seventh resistor R7 and an terminal of the eighth resistor R8 are connected in common, a second terminal of the eighth resistor R8 is connected to the second voltage source 30, and an emitter of the second transistor Q2 is connected to ground.
In embodiments, the sixth resistor R6 has a resistance of between 1K Ω and 5K Ω.
In embodiments, the second transistor Q2 may be an NPN transistor or a PNP transistor.
In embodiments, referring to fig. 4, the second light unit 621 includes M light emitting diode strings connected in parallel, where M is greater than or equal to 1 and is an integer, and each light emitting diode string is formed by sequentially connecting a plurality of Light Emitting Diodes (LEDs) 2 in series;
the second resistor unit 622 includes N fifth resistors R5, wherein M eighth resistors R8 are respectively connected in series with M led strings .
Referring to fig. 5, the embodiment of the present application further provides kinds of music lighting devices, where the music lighting devices include:
an audio port 81;
a second voltage port 83; and
the music light circuit 84, the music light circuit 84 may be any of the music light circuits described in the embodiments above.
In this embodiment, this audio signal source can be the audio frequency or the video of display product broadcast, display module can be for the atmosphere lamp of locating the display back, this atmosphere lamp can adopt the three-colour emitting diode series connection to form, or the lamp cluster of constituteing by colored emitting diode that sets up according to user's needs, can jet out the light that has the rhythm sense the same with audio frequency or video in step through the atmosphere lamp of locating the display back, make music and light rhythm send, let the user experience the third dimension in space that oneself is located with cutting oneself, enrich user's visual enjoyment.
In music lamp circuit and music lamp device provided by the application, the music lamp circuit comprises a power amplification module which is connected with the audio signal source and the th voltage source, receives th audio signal output by the audio signal source and the th voltage source signal output by the th voltage source, and performs power amplification processing on the th audio signal to output a corresponding th audio amplification signal, a th signal processing module which is connected with the power amplification module, receives the second voltage source signal output by the second voltage source and the th audio amplification signal, and outputs a corresponding th voltage signal according to the th audio amplification signal, and a th display module which is connected with the 4684 th signal processing module, receives the th voltage signal, displays corresponding lamp brightness according to the 460 th voltage signal, and realizes that the lamp can not be used by a conventional intelligent lamp control device before the lighting control device is used, so that the lighting effect of the lamp 585924 can not be changed along with the audio signal before the lighting effect of the lighting control device is changed by processing the th audio signal provided by the audio signal source to provide 585 th audio signal which can be used in the conventional lamp control device.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
- A music light circuit of kind, wherein, connected with audio signal source, voltage source and second voltage source, the music light circuit includes:the power amplification module is connected with the audio signal source and the voltage source, receives a th audio signal output by the audio signal source and a th voltage source signal output by the voltage source, and performs power amplification processing on the th audio signal to output a corresponding th audio amplification signal;a th signal processing module connected to the power amplifying module, the th signal processing module receiving the second voltage source signal outputted by the second voltage source and the th audio amplifying signal and outputting a corresponding th voltage signal according to the th audio amplifying signal, andthe th display module is connected to the th signal processing module, and the th display module receives the th voltage signal and displays the corresponding light brightness according to the th voltage signal.
- 2. A music light circuit according to claim 1, wherein the audio signal source further outputs a second audio signal;the power amplification module is also used for receiving the second audio signal and performing power amplification processing on the second audio signal so as to output a corresponding second audio amplification signal;the music light circuit further includes:the second signal processing module is connected with the power amplification module, receives the second audio amplification signal and the second voltage source signal, and outputs a corresponding second voltage signal according to the second audio amplification signal; andand the second display module is connected with the second signal processing module, receives the second voltage signal and displays corresponding lamplight brightness according to the second voltage signal.
- 3. The music lamp circuit as claimed in claim 1, wherein the power amplification module comprises an audio power amplification chip, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor and a filtering unit for filtering the audio signal;a second terminal of the second filter unit is connected to the audio signal source, a second terminal of the filter unit is connected to a second audio signal input terminal of the audio power amplifier chip, a reference voltage signal terminal of the audio power amplifier chip is connected to a second terminal of the fourth capacitor, a power terminal of the audio power amplifier chip is connected to a second terminal of the seventh capacitor, a ground terminal of the audio power amplifier chip, a second terminal of the fourth capacitor and a second terminal of the seventh capacitor are connected to ground, a second 4 audio amplifier signal output terminal of the audio power amplifier chip is connected to the second signal processing module, a second power supply terminal of the audio power amplifier chip, a second terminal of the second capacitor and a second terminal of the third capacitor are connected to the third voltage source, a second power supply terminal of the audio power amplifier chip, a second terminal of the second capacitor and a second terminal of the third capacitor are connected to the second power supply terminal of the audio power amplifier chip, a second terminal of the second capacitor and a second terminal of the third capacitor are connected to the ground, a second terminal of the audio power amplifier chip is connected to the second power supply terminal of the fifth capacitor and a second terminal of the audio power amplifier chip is connected to the second capacitor 8536.
- 4. A music light circuit according to claim 3, wherein the th filtering unit comprises a th resistor and a th capacitor;a terminal of the th resistor is connected to a terminal of the th filter unit, a second terminal of the th resistor is connected to a terminal of the th capacitor, and a second terminal of the th capacitor is connected to a second terminal of the th filter unit.
- 5. The music light circuit of claim 1, wherein the th signal processing module comprises a second resistor, a third resistor, a fourth resistor, and a th transistor;the th end of the second resistor is connected with the power amplification module, the second end of the second resistor, the th end of the third resistor and the base of the th triode are connected in common, the second end of the third resistor, the th end of the fourth resistor and the collector of the th triode are connected in common to the th display module, the second end of the fourth resistor is connected with the second voltage source, and the emitter of the th triode is grounded.
- 6. A music light circuit according to claim 1, wherein the th display module comprises:th light unit connected with the signal processing module, the th light unit displaying corresponding tube brightness according to the th voltage signal, andthe th resistor unit is connected with the th light unit, and the th resistor unit is used for limiting the current of the th light unit.
- 7. A music light circuit according to claim 6, wherein said th light unit includes N LED strings connected in parallel, each LED string consisting of a plurality of LEDs connected in series in sequence;the th resistor unit comprises N fifth resistors, wherein the N fifth resistors are respectively connected with the N LED lamp strings in series, N is not less than 1 and is an integer.
- 8. A music light circuit according to claim 3, wherein the power amplification module further comprises:and the second filtering unit is used for filtering a second audio signal output by the audio signal source, wherein the th end of the second filtering unit is connected with the audio signal source, and the second end of the second filtering unit is connected with the second audio signal input end of the audio power amplification chip.
- 9. A music light circuit according to claim 2, wherein the second signal processing module comprises: the fourth resistor is connected with the fourth resistor;an th end of the sixth resistor is connected to the power amplifying module, a second end of the sixth resistor, a th end of the seventh resistor and a base of the second triode are connected in common, a collector of the second triode, a second end of the seventh resistor and a th end of the eighth resistor are connected in common, a second end of the eighth resistor is connected to the second voltage source, and an emitter of the second triode is grounded.
- 10, A musical light device, comprising:an audio port;voltage port;a second voltage port; anda music light circuit according to any one of claims 1 to 9 to .
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| CN201920465570.6U CN210007956U (en) | 2019-04-08 | 2019-04-08 | music light circuit and music light device |
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| CN201920465570.6U CN210007956U (en) | 2019-04-08 | 2019-04-08 | music light circuit and music light device |
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| GR01 | Patent grant |