CN204156968U - A kind of sound control circuit, sound equipment and television acoustics system - Google Patents
A kind of sound control circuit, sound equipment and television acoustics system Download PDFInfo
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- CN204156968U CN204156968U CN201420476334.1U CN201420476334U CN204156968U CN 204156968 U CN204156968 U CN 204156968U CN 201420476334 U CN201420476334 U CN 201420476334U CN 204156968 U CN204156968 U CN 204156968U
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Abstract
The utility model relates to sound technique field, particularly relate to a kind of sound control circuit, sound equipment and television acoustics system, comprise sound power amplifying circuit, power adapter circuit, the switching circuit be turned on or off for the power input of the power interface that is connected with the television USB interface of outside and the power output end controlling power adapter circuit and sound power amplifying circuit; Television USB interface when outside is powered to power interface, switching circuit controls the power output end of power adapter circuit and the power input conducting of sound power amplifying circuit, television USB interface when outside stops powering to power interface, and switching circuit controls the power output end of power adapter circuit and the power input of sound power amplifying circuit disconnects.This sound control circuit, sound equipment and television acoustics system, by means of only single stepping, just can control sound equipment and the TV that is connected with this sound equipment USB is in and starts shooting or holding state simultaneously, simple to operate, Consumer's Experience good.
Description
Technical field
The utility model relates to sound technique field, particularly relates to a kind of sound control circuit, sound equipment and television acoustics system.
Background technology
Panel TV is large with its screen, and the feature that thickness is little obtains the welcome of users, applies very general.But panel TV is because the restriction of space and moulding, and the power of its sound and loudspeaker size cannot accomplish the acoustics of specialty, and the audio of output is general.So have certain customers in order to the shock audio visual effect of home theater can also be enjoyed while appreciating large-screen picture with panel TV, just panel TV and sound equipment are coupled together, composition home theater.The mode that present panel TV is connected with sound equipment is the voice signal input voice signal of TV being transferred to sound equipment by earphone cord, USB line and wireless Bluetooth circuit, and TV and sound equipment are connected 220V mains supply respectively.TV and sound equipment control respectively by respective remote controller.Each remote controller can control start, the holding state of the size of volume and machine.As shown in Figure 1, it is the structural representation that prior art TV is connected with sound equipment, and TV and sound equipment need to control with two different remote controllers respectively.By this connected mode, people are when closing home theater, and need to use TV remote controller that TV is set to holding state, also with remote controller of acoustic device, sound equipment is arranged at holding state, complex operation, user experience is poor simultaneously.In prior art, the sound control circuit of sound equipment inside comprises sound control circuit, sound power amplifying circuit and power adapter circuit, and sound control circuit is used for processing voice signal, and such as volume controls; Sound power amplifying circuit be used for power amplification is carried out to voice signal, power adapter circuit be used for input 220V mains supply be processed into road 12V ~ 24V sound power amplifying circuit power supply to sound power amplifying circuit power and a road 5V sound control circuit power supply power to sound control circuit.As shown in Figure 2, it is the block diagram of prior art sound control circuit.When sound equipment is in holding state, sound power amplifying circuit power outage, but sound control circuit still uses 5V power supply to work on, and causes certain waste to electric energy.
Utility model content
The purpose of this utility model is to propose a kind of sound control circuit, sound equipment and television acoustics system, just can control sound equipment and the TV that is connected with this sound equipment USB is in and starts shooting or holding state by means of only single stepping simultaneously, simple to operate, Consumer's Experience good.
For reaching this object, the utility model by the following technical solutions:
First aspect, a kind of sound control circuit is provided, comprise sound power amplifying circuit and power adapter circuit, also comprising the power interface for being connected with the television USB interface of outside, controlling the switching circuit be turned on or off of the power output end of power adapter circuit and the power input of sound power amplifying circuit; Power interface is connected with the power input of switching circuit; When the television USB interface of outside is powered to power interface, switching circuit controls the power output end of power adapter circuit and the power input conducting of sound power amplifying circuit, power to give sound power amplifying circuit, when the television USB interface of outside stops powering to power interface, switching circuit controls the power output end of power adapter circuit and the power input of sound power amplifying circuit disconnects, to stop powering to sound power amplifying circuit.
Wherein, described sound control circuit also comprises sound control circuit, described power interface is connected with the power input of sound control circuit, when the television USB interface of outside is powered to power interface, power interface is powered to sound control circuit, when the television USB interface of outside stops powering to power interface, power interface stops powering to sound control circuit.
Wherein, described switching circuit comprises metal-oxide-semiconductor V1, the triode V2 of P raceway groove, resistance R1, resistance R2, resistance R3 and resistance R4; The drain electrode of described metal-oxide-semiconductor V1 connects the power input of sound power amplifying circuit, the source electrode of metal-oxide-semiconductor V1 is connected with one end of the power output end of power adapter circuit, resistance R1, the other end of resistance R1 is connected with one end of the grid of metal-oxide-semiconductor V1, resistance R2, the collector electrode of the other end connecting triode V2 of resistance R2, one end of the base stage contact resistance R3 of triode V2, the emitter of triode V2 is connected with one end of resistance R4, earth terminal, and the other end of described resistance R3 is all connected with power interface with the other end of resistance R4.
Wherein, described sound control circuit also comprises USB connecting line, and described USB connecting line comprises USB male joint and DC plug, and described USB male joint connects outside television USB interface, and described DC plug connects power interface.
Wherein, described sound control circuit also comprises USB connecting line, and described USB connecting line comprises USB male joint and MICRO USB plug, and described USB male joint connects outside television USB interface, and described MICRO USB plug connects power interface.
Wherein, described USB connecting line is USB 5V connecting line.
Second aspect, provides a kind of sound equipment, comprises above-mentioned sound control circuit.
Wherein, described sound equipment comprises shell, and described power adapter circuit is arranged at inside or the outside of shell.
Wherein, described sound control circuit comprises earphone jack and/or wireless blue tooth transmission circuit, and described earphone jack is connected with sound control circuit, and described wireless blue tooth transmission circuit is connected with sound control circuit.
The third aspect, provides a kind of television acoustics system, and comprise the TV and above-mentioned sound equipment that arrange USB interface, the USB interface of described TV is connected by USB connecting line with the power interface of the sound control circuit of sound equipment.
The beneficial effects of the utility model are: a kind of sound control circuit, sound equipment and television acoustics system, comprise sound power amplifying circuit and power adapter circuit, also comprising the power interface for being connected with the television USB interface of outside, controlling the switching circuit be turned on or off of the power output end of power adapter circuit and the power input of sound power amplifying circuit; Power interface is connected with the power input of switching circuit; When the television USB interface of outside is powered to power interface, switching circuit controls the power output end of power adapter circuit and the power input conducting of sound power amplifying circuit, power to give sound power amplifying circuit, when the television USB interface of outside stops powering to power interface, switching circuit controls the power output end of power adapter circuit and the power input of sound power amplifying circuit disconnects, to stop powering to sound power amplifying circuit.According to the TV that USB interface is set when open state USB interface out-put supply signal and at holding state time USB interface stop the characteristic of out-put supply signal, when control TV is in start or holding state, the power interface of the sound equipment be connected with the USB interface of TV accordingly will receive or not receive power supply signal.The power output end of this power supply signal control switch circuit turn-on or deenergization adapter circuit and the power input of sound power amplifying circuit, to control sound power amplifying circuit being in start or holding state.Visible, this sound control circuit, sound equipment and television acoustics system, be in by means of only the TV controlling to be connected with the sound control circuit USB of sound equipment and start shooting or this single stepping of holding state, the TV that just simultaneously can control sound equipment and be connected with this sound equipment USB is in starts shooting or holding state, simple to operate, Consumer's Experience good.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, be briefly described to the accompanying drawing used required in the description of the utility model embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the content of the utility model embodiment and these accompanying drawings.
Fig. 1 is the structural representation that prior art TV is connected with sound equipment.
Fig. 2 is the block diagram of prior art sound control circuit.
Fig. 3 is the block diagram of the sound control circuit that the utility model first embodiment provides.
Fig. 4 is the block diagram of the sound control circuit that the utility model second embodiment provides.
Fig. 5 is the structural representation that TV that the utility model provides is connected with sound equipment.
Embodiment
The technical problem solved for making the utility model, the technical scheme of employing and the technique effect that reaches are clearly, be described in further detail below in conjunction with the technical scheme of accompanying drawing to the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those skilled in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 3, it is the block diagram of the sound control circuit that the utility model first embodiment provides.
A kind of sound control circuit, comprise sound power amplifying circuit and power adapter circuit, also comprising the power interface for being connected with the television USB interface of outside, controlling the switching circuit be turned on or off of the power output end of power adapter circuit and the power input of sound power amplifying circuit; Power interface is connected with the power input of switching circuit; When the television USB interface of outside is powered to power interface, switching circuit controls the power output end of power adapter circuit and the power input conducting of sound power amplifying circuit, power to give sound power amplifying circuit, when the television USB interface of outside stops powering to power interface, switching circuit controls the power output end of power adapter circuit and the power input of sound power amplifying circuit disconnects, to stop powering to sound power amplifying circuit.
Current panel TV generally all arranges plural USB interface, and when TV is in open state, each USB interface can export 5V; The power supply signal of 500mA, when TV is in holding state, each USB interface stops out-put supply signal.Utilize this characteristic of panel TV, the basis of existing sound control circuit increases power interface and switching circuit, with a USB connecting line, the USB interface of panel TV and the power interface of sound equipment are coupled together, recycling switching circuit controls conducting and the disconnection of the power output end of power adapter circuit and the power input of sound power amplifying circuit, automatically to control sound equipment being in start or holding state.TV and sound equipment only just can control by a TV remote controller.
The sound control circuit that the utility model provides, according to the TV that USB interface is set when open state USB interface out-put supply signal and at holding state time USB interface stop the characteristic of out-put supply signal, when control TV is in start or holding state, the power interface of the sound equipment be connected with the USB interface of TV accordingly will receive or not receive power supply signal.The power output end of this power supply signal control switch circuit turn-on or deenergization adapter circuit and the power input of sound power amplifying circuit, to control sound power amplifying circuit being in start or holding state.Visible, this sound control circuit, be in start shooting or this single stepping of holding state by means of only controlling the TV that is connected with the sound control circuit USB of sound equipment, just can control sound equipment and the TV that is connected with this sound equipment USB is in and starts shooting or holding state simultaneously, simple to operate, Consumer's Experience good.
As shown in Figure 4, it is the block diagram of the sound control circuit that the utility model second embodiment provides.
Wherein, described sound control circuit also comprises sound control circuit, described power interface is connected with the power input of sound control circuit, when the television USB interface of outside is powered to power interface, power interface is powered to sound control circuit, when the television USB interface of outside stops powering to power interface, power interface stops powering to sound control circuit.
Described power interface is connected with sound control circuit, utilizes the power supply signal of panel TV USB 5V output voltage to power directly to the sound control circuit of sound equipment.The presence or absence of the power supply signal of power interface directly controls conducting and the disconnection of sound control circuit.When sound equipment is in holding state, power interface does not receive power supply signal, and sound control circuit stops Power supply automatically, energy-conserving and environment-protective and simplify power adapter circuit.
Standby is the common function of TV, the sound control circuit that the utility model provides, when TV is controlled be in holding state time, sound equipment also can because of television standby automatic stand-by, when TV transfers the use of normal boot-strap state to from holding state, sound equipment is also automatic transfers open state to from holding state.Such use TV remote controller once just can complete the standby operation of TV and sound equipment, has great convenience for the user.
Wherein, described switching circuit comprises metal-oxide-semiconductor V1, the triode V2 of P raceway groove, resistance R1, resistance R2, resistance R3 and resistance R4; The drain electrode of described metal-oxide-semiconductor V1 connects the power input of sound power amplifying circuit, the source electrode of metal-oxide-semiconductor V1 is connected with one end of the power output end of power adapter circuit, resistance R1, the other end of resistance R1 is connected with one end of the grid of metal-oxide-semiconductor V1, resistance R2, the collector electrode of the other end connecting triode V2 of resistance R2, one end of the base stage contact resistance R3 of triode V2, the emitter of triode V2 is connected with one end of resistance R4, earth terminal, and the other end of described resistance R3 is all connected with power interface with the other end of resistance R4.
Metal-oxide-semiconductor V1, the triode V2 of a P raceway groove and resistance R1 ~ R4 is used to form switching circuit, when TV is in open state, there is USB 5V input voltage signal, the metal-oxide-semiconductor V1 conducting of P raceway groove, the power output end of switching circuit turn-on power adapter circuit and the power input of sound power amplifying circuit.When TV is in holding state, USB 5V input voltage signal disappears, and the metal-oxide-semiconductor V1 of P raceway groove ends, the power output end of switching circuit deenergization adapter circuit and the power input of sound power amplifying circuit, sound power amplifying circuit quits work, and sound equipment is in holding state.
The switching circuit that the present embodiment provides utilizes the Characteristics Control power output end of metal-oxide-semiconductor and being turned on or off of power input.Certainly, those skilled in the art can also according to common practise, under the technical background of the technical program, select other forms of switching circuit to realize controlling the function be turned on or off of the power output end of power adapter circuit and the power input of sound power amplifying circuit, such as physical switch circuit, no longer citing repeats herein.
Preferably, described sound control circuit also comprises USB connecting line, and described USB connecting line comprises USB male joint and DC plug, and described USB male joint connects outside television USB interface, and described DC plug connects power interface.
Preferably, described sound control circuit also comprises USB connecting line, and described USB connecting line comprises USB male joint and MICRO USB plug, and described USB male joint connects outside television USB interface, and described MICRO USB plug connects power interface.
Above-mentioned two kinds of USB connecting lines are USB connecting lines more common at present.Certainly, those skilled in the art according to common practise, under the technical background of the technical program, can also select other forms of USB connecting line.
Wherein, described USB connecting line is USB 5V connecting line.
USB is the abbreviation of USB (Universal Serial Bus) interface.It uses one of interface more widely at present, and main version has 1.0,1.1,2.0 and up-to-date 3.0 4 kind of version.According to the industrial standard of usb bus, it can provide rated power to be the power supply of 5V, 500mA, for USB device.
A kind of sound equipment, comprises above-mentioned sound control circuit.
Wherein, described sound equipment comprises shell, and described power adapter circuit is arranged at inside or the outside of shell.
Power adapter circuit can be arranged at the enclosure of sound equipment, also can select external power adapter.In actual application, select according to the specific environment used.
In addition, TV remote controller can control the size of television sound volume, when production low cost sound equipment, can simplify the sound control circuit of sound equipment, cancels the remote control circuit of sound equipment, is directly controlled the output volume size of sound equipment by TV remote controller.
Wherein, described sound control circuit comprises earphone jack and/or wireless blue tooth transmission circuit, and described earphone jack is connected with sound control circuit, and described wireless blue tooth transmission circuit is connected with sound control circuit.
Earphone jack and wireless blue tooth transmission circuit all the transmission of sound signals of TV to sound control circuit, by the power amplification of sound power amplifying circuit, can form the audio visual effect of shock.
The sound equipment that the utility model provides, according to the TV that USB interface is set when open state USB interface out-put supply signal and at holding state time USB interface stop the characteristic of out-put supply signal, when control TV is in start or holding state, the power interface of the sound equipment be connected with the USB interface of TV accordingly will receive or not receive power supply signal.The power output end of this power supply signal control switch circuit turn-on or deenergization adapter circuit and the power input of sound power amplifying circuit, to control sound power amplifying circuit being in start or holding state.Visible, this sound equipment, be in start shooting or this single stepping of holding state by means of only controlling the TV that is connected with the sound control circuit USB of sound equipment, just can control sound equipment and the TV that is connected with this sound equipment USB is in and starts shooting or holding state simultaneously, simple to operate, Consumer's Experience good.
As shown in Figure 5, the structural representation that is connected with sound equipment of its TV being the utility model provides.
A kind of television acoustics system, comprise the TV and above-mentioned sound equipment that arrange USB interface, the USB interface of described TV is connected by USB connecting line with the power interface of the sound control circuit of sound equipment.
The television acoustics system that the utility model provides, according to the TV that USB interface is set when open state USB interface out-put supply signal and at holding state time USB interface stop the characteristic of out-put supply signal, when control TV is in start or holding state, the power interface of the sound equipment be connected with the USB interface of TV accordingly will receive or not receive power supply signal.The power output end of this power supply signal control switch circuit turn-on or deenergization adapter circuit and the power input of sound power amplifying circuit, to control sound power amplifying circuit being in start or holding state.Visible, this television acoustics system, be in start shooting or this single stepping of holding state by means of only controlling the TV that is connected with the sound control circuit USB of sound equipment, just can control sound equipment and the TV that is connected with this sound equipment USB is in and starts shooting or holding state simultaneously, simple to operate, Consumer's Experience good.
A kind of sound control circuit, sound equipment and television acoustics system, just can control sound equipment by means of only single stepping simultaneously and the TV that is connected with this sound equipment USB is in and starts shooting or holding state, simple to operate, Consumer's Experience good.
Above content is only preferred embodiment of the present utility model, for those of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, this description should not be construed as restriction of the present utility model.
Claims (10)
1. a sound control circuit, comprise sound power amplifying circuit and power adapter circuit, it is characterized in that, also comprising the power interface for being connected with the television USB interface of outside, controlling the switching circuit be turned on or off of the power output end of power adapter circuit and the power input of sound power amplifying circuit; Power interface is connected with the power input of switching circuit; When the television USB interface of outside is powered to power interface, switching circuit controls the power output end of power adapter circuit and the power input conducting of sound power amplifying circuit, power to give sound power amplifying circuit, when the television USB interface of outside stops powering to power interface, switching circuit controls the power output end of power adapter circuit and the power input of sound power amplifying circuit disconnects, to stop powering to sound power amplifying circuit.
2. sound control circuit according to claim 1, it is characterized in that, described sound control circuit also comprises sound control circuit, described power interface is connected with the power input of sound control circuit, when the television USB interface of outside is powered to power interface, power interface is powered to sound control circuit, and when the television USB interface of outside stops powering to power interface, power interface stops powering to sound control circuit.
3. sound control circuit according to claim 1, is characterized in that, described switching circuit comprises metal-oxide-semiconductor V1, the triode V2 of P raceway groove, resistance R1, resistance R2, resistance R3 and resistance R4; The drain electrode of described metal-oxide-semiconductor V1 connects the power input of sound power amplifying circuit, the source electrode of metal-oxide-semiconductor V1 is connected with one end of the power output end of power adapter circuit, resistance R1, the other end of resistance R1 is connected with one end of the grid of metal-oxide-semiconductor V1, resistance R2, the collector electrode of the other end connecting triode V2 of resistance R2, one end of the base stage contact resistance R3 of triode V2, the emitter of triode V2 is connected with one end of resistance R4, earth terminal, and the other end of described resistance R3 is all connected with power interface with the other end of resistance R4.
4. sound control circuit according to claim 1, it is characterized in that, described sound control circuit also comprises USB connecting line, and described USB connecting line comprises USB male joint and DC plug, described USB male joint connects outside television USB interface, and described DC plug connects power interface.
5. sound control circuit according to claim 1, it is characterized in that, described sound control circuit also comprises USB connecting line, described USB connecting line comprises USB male joint and MICRO USB plug, described USB male joint connects outside television USB interface, and described MICRO USB plug connects power interface.
6. the sound control circuit according to claim 4 or 5, is characterized in that, described USB connecting line is USB 5V connecting line.
7. a sound equipment, is characterized in that, comprises the sound control circuit as described in claim 1 ~ 6 any one.
8. sound equipment according to claim 7, is characterized in that, described sound equipment comprises shell, and described power adapter circuit is arranged at inside or the outside of shell.
9. sound equipment according to claim 7, is characterized in that, described sound control circuit comprises earphone jack and/or wireless blue tooth transmission circuit, and described earphone jack is connected with sound control circuit, and described wireless blue tooth transmission circuit is connected with sound control circuit.
10. a television acoustics system, is characterized in that, comprise the TV and sound equipment as claimed in claim 7 that arrange USB interface, the USB interface of described TV is connected by USB connecting line with the power interface of the sound control circuit of sound equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420476334.1U CN204156968U (en) | 2014-08-21 | 2014-08-21 | A kind of sound control circuit, sound equipment and television acoustics system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420476334.1U CN204156968U (en) | 2014-08-21 | 2014-08-21 | A kind of sound control circuit, sound equipment and television acoustics system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204156968U true CN204156968U (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420476334.1U Expired - Fee Related CN204156968U (en) | 2014-08-21 | 2014-08-21 | A kind of sound control circuit, sound equipment and television acoustics system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204156968U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556988A (en) * | 2020-12-02 | 2021-03-26 | 海信视像科技股份有限公司 | Display device and detection circuit thereof |
| CN114296538A (en) * | 2021-12-07 | 2022-04-08 | 广东虹勤通讯技术有限公司 | Electronic equipment power amplifier power supply control circuit and electronic equipment |
-
2014
- 2014-08-21 CN CN201420476334.1U patent/CN204156968U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556988A (en) * | 2020-12-02 | 2021-03-26 | 海信视像科技股份有限公司 | Display device and detection circuit thereof |
| CN112556988B (en) * | 2020-12-02 | 2023-09-26 | 海信视像科技股份有限公司 | Display device and detection circuit thereof |
| CN114296538A (en) * | 2021-12-07 | 2022-04-08 | 广东虹勤通讯技术有限公司 | Electronic equipment power amplifier power supply control circuit and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 |
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| CF01 | Termination of patent right due to non-payment of annual fee |