CN106101935A - A kind of bass speed buffering lifter - Google Patents
A kind of bass speed buffering lifter Download PDFInfo
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- CN106101935A CN106101935A CN201610644298.9A CN201610644298A CN106101935A CN 106101935 A CN106101935 A CN 106101935A CN 201610644298 A CN201610644298 A CN 201610644298A CN 106101935 A CN106101935 A CN 106101935A
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2420/00—Details of connection covered by H04R, not provided for in its groups
- H04R2420/03—Connection circuits to selectively connect loudspeakers or headphones to amplifiers
Abstract
The invention discloses a kind of bass speed buffering lifter, including two identical drive circuits, connecting between two drive circuits and have impedance control circuit, the input of this bass speed buffering lifter provides linearisation diode to reduce the distortion factor and to allow higher incoming level；With impedance control buffer circuits, since supplement the dynamic range of amplifier；The operation transconductance amplifier that two electric currents control；Audio frequency point energy width adjusting；Audio frequency point energy speed extends regulation.
Description
Technical field
The present invention relates to technical field of motors, be specially a kind of bass speed buffering lifter.
Background technology
Especially with automobile audio, computer, TV etc. in electronic product, if not adding low boost circuit in its prime,
Its work voiced process just can not get sound equipment and the supper bass effect of high-fidelity.And supper bass strengthens driving for sound system
In mainly strengthen bass effect, with make up some audio frequency broadcast system or play occasion bass effect deficiency is supplemented.Existing
Have in technology and lack reducing unnecessary noise to improve the research of signal to noise ratio.
Summary of the invention
It is an object of the invention to provide a kind of bass speed buffering lifter, to solve proposition in above-mentioned background technology
Problem.
For achieving the above object, the present invention provides following technical scheme:
A kind of bass speed buffering lifter, including two identical drive circuits, connects between two drive circuits and has
Impedance control circuit, two drive circuits all include line bank, and the contact of line bank is connected to input IN and transport and placing device
U1B, the outfan of transport and placing device U1B is connected by resistance R20 the in-phase input end of transport and placing device U2B, transport and placing device U2B and anti-phase defeated
Entering string between end has resistance R17, resistance R17 to be connected to connect end U2-6, transport and placing device U2B by resistance R21 meet earth resistance R18
With electric capacity C16, electric capacity C16 be connected to earth resistance R19 and transport and placing device U3A, transport and placing device U3A is by electric capacity C28 and is connected to electric capacity
In-phase input end and the earth resistance R35 of C27 and resistance R37, electric capacity C27 and transport and placing device U3B are connected, and transport and placing device U3B's is anti-phase
Input connects has earth resistance R33, resistance R37 to be connected with transport and placing device U3B outfan, and transport and placing device U3B outfan is with anti-simultaneously
Resistance R38 and the electric capacity having resistance R34 in parallel and electric capacity C25, resistance R37 to be also associated with concatenation is connected between phase input
C29, electric capacity C29 connect the resistance R36 and electric capacity C26 having parallel connection, are finally linked into outfan OUT；
Impedance control circuit includes that earth resistance R2, earth resistance R2 connection has electric capacity C6 and electric capacity C5, electric capacity C6 to connect
Having transport and placing device U5A inverting input, the outfan of transport and placing device U5A is connected with electric capacity C5 and resistance R15, the output of transport and placing device U5A
It is also associated with resistance R3, resistance R15 between end and inverting input and after secondary amplifies, has connection by electric capacity C24 connection again
End U6-7 and resistance R29, resistance R29 connect transport and placing device U6A inverting input, the inverting input of transport and placing device U6A and output
End connects the resistance R28 and electric capacity C22 having parallel connection, and the outfan of transport and placing device U6A is gone here and there through transport and placing device U7B and with transport and placing device U7B
The resistance R30 connect connects connection end U7-7, connects end U7-7 and connects the diode D1 and earth resistance C23 having and connecing；
Connect end U7-7 and connect resistance R42 and two poles having single-chip microcomputer TC4013BP, single-chip microcomputer TC4013BP to pass through concatenation
Pipe D3 connects the base stage having audion Q1, and the colelctor electrode of audion Q1 is connected by electric capacity C31 resistance R47 and transport and placing device U7A
In-phase input end, resistance R47 and be connected end U6-7 and transport and placing device U7A inverting input connect, the outfan of transport and placing device U7A
Being connected by the electric capacity C34 and resistance R49 of concatenation and have the inverting input of transport and placing device U8A, the outfan of transport and placing device U8A connects to be had
Resistance R69 and electric capacity C41；
Resistance R69 connects the base stage having audion Q2, and the colelctor electrode of audion Q2 has been sequentially connected in series resistance R50 and three rule
The LED that lattice are identical, electric capacity C41 is connected with earth resistance R67 and earth resistance R65 in turn, and earth resistance R65 is connected to monolithic
The pin 1 of machine 13700D, single-chip microcomputer 13700D is connected by resistance R7 resistance R70 and electric capacity C43, resistance R70 and electric capacity C43
It is all connected to REM external line traffic control end, by resistance R68 short circuit between pin 2 and the pin 8 of single-chip microcomputer 13700D, pin 2 simultaneously
And it is also associated with ground capacity C42 between resistance R68, connects between pin 5 and the pin 7 of single-chip microcomputer 13700D and organize resistance more
R63 and the pins 5 of port C-SW, single-chip microcomputer 13700D being connected with many group resistance R63 have transport and placing device also by resistance R39 connection
U8B, transport and placing device U8B are connected by electric capacity C38 earth resistance R51 and resistance R53, and resistance R53 is connected by resistance R54 fortune
Put device U9B, transport and placing device U9B electric capacity C39, resistance R55 by series connection and variable resistance VR1B connection has transport and placing device U9A and amplifier
The inverting input of device U10A, transport and placing device U9A and outfan short circuit, and draw resistance R72 and resistance R7 respectively, resistance R72 connects
Entering to connecting on end U2-6, resistance R7 is linked on the connection end U2-2 on another drive circuit resistance R17, and transport and placing device U10A leads to
The in-phase input end crossing electric capacity C44 and transport and placing device U10B is connected, and the in-phase input end of transport and placing device U10B is also associated with resistance R78,
The inverting input of transport and placing device U10B connects resistance R74, resistance R75 and the resistance R77 having parallel connection, and resistance R74 receives transport and placing device
The in-phase input end of U9A, resistance R75 connects has variable resistance VR2A, resistance R78 to connect variable resistance VR2B；
REM external line traffic control end is also associated with resistance RP51 and resistance RP2, the rectification that resistance RP51 is connected by four groups of head and the tail
Diode DP is connected to one end of transformator TRAN, and the other end of transformator TRAN connects audion QP3 colelctor electrode, audion
QP1 emitter stage and single-chip microcomputer TL494, the emitter stage of audion QP3 is connected on single-chip microcomputer TL494, simultaneously further through resistance
RP38 lead common wire, the common wire of extraction is connected to resistance RP50, electric capacity CP19 and resistance RP49, resistance RP50 and
Electric capacity CP19 is all linked on single-chip microcomputer TL494, and resistance RP49 is also connected to resistance RP45 and the resistance being connected with single-chip microcomputer TL494
RP44, resistance RP44 connect resistance RP46 and the resistance RP48 in parallel with resistance RP46 and electric capacity CP18, single-chip microcomputer TL494's
The defeated end of low level of resistance RP42 and resistance RP43, single-chip microcomputer TL494 that the defeated end of high level enters to be also associated with parallel connection connects electricity
Resistance RP37 and the resistance RP41 being connected with common wire, is connected by electric capacity CP17 between resistance RP42 and resistance RP43；
The colelctor electrode of audion QP1 is connected with the drive end of single-chip microcomputer TL494 by ground capacity CP11, audion QP1
Collection level be connected by the colelctor electrode of resistance RP58 and audion QP2, the emitter stage of audion QP1 is also associated with electric capacity in parallel
CP42, electric capacity CP30 and diode DP45, the collection level of audion QP2 once connects commutation diode ZDP42 and resistance
RP114, resistance RP114 connect has the electric capacity CP43 of parallel connection and diode DP43, electric capacity CP43 to pass through resistance RP23 and common wire
Ground connection after connection, the two ends of diode DP43 connect the first LED and resistance RP2, the first LED two ends loading resistor RP1
And the diode DP42 concatenated with resistance RP1.
Compared with prior art, the invention has the beneficial effects as follows: the present invention, 1. use high low pass circuit；2. input provides
Linearisation diode is to reduce the distortion factor and to allow higher incoming level；3. with impedance control buffer circuits, since mend
Fill the dynamic range of amplifier；4. the operation transconductance amplifier that two electric currents control；5. audio frequency point energy width adjusting；6.
Audio frequency point energy speed extends regulation.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram；
Fig. 2 is to connect end U2-6 and connection end U7-7 in Fig. 1 to connect other component structure schematic diagrams；
Fig. 3 is that in Fig. 2, REM external line traffic control end connects other component structure schematic diagrams.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
Referring to Fig. 1-3, the present invention provides a kind of technical scheme:
A kind of bass speed buffering lifter, including two identical drive circuits, connects between two drive circuits and has
Impedance control circuit, two drive circuits all include line bank, and the contact of line bank is connected to input IN and transport and placing device
U1B, the outfan of transport and placing device U1B is connected by resistance R20 the in-phase input end of transport and placing device U2B, transport and placing device U2B and anti-phase defeated
Entering string between end has resistance R17, resistance R17 to be connected to connect end U2-6, transport and placing device U2B by resistance R21 meet earth resistance R18
With electric capacity C16, electric capacity C16 be connected to earth resistance R19 and transport and placing device U3A, transport and placing device U3A is by electric capacity C28 and is connected to electric capacity
In-phase input end and the earth resistance R35 of C27 and resistance R37, electric capacity C27 and transport and placing device U3B are connected, and transport and placing device U3B's is anti-phase
Input connects has earth resistance R33, resistance R37 to be connected with transport and placing device U3B outfan, and transport and placing device U3B outfan is with anti-simultaneously
Resistance R38 and the electric capacity having resistance R34 in parallel and electric capacity C25, resistance R37 to be also associated with concatenation is connected between phase input
C29, electric capacity C29 connect the resistance R36 and electric capacity C26 having parallel connection, are finally linked into outfan OUT.
Impedance control circuit includes that earth resistance R2, earth resistance R2 connection has electric capacity C6 and electric capacity C5, electric capacity C6 to connect
Having transport and placing device U5A inverting input, the outfan of transport and placing device U5A is connected with electric capacity C5 and resistance R15, the output of transport and placing device U5A
It is also associated with resistance R3, resistance R15 between end and inverting input and after secondary amplifies, has connection by electric capacity C24 connection again
End U6-7 and resistance R29, resistance R29 connect transport and placing device U6A inverting input, the inverting input of transport and placing device U6A and output
End connects the resistance R28 and electric capacity C22 having parallel connection, and the outfan of transport and placing device U6A is gone here and there through transport and placing device U7B and with transport and placing device U7B
The resistance R30 connect connects connection end U7-7, connects end U7-7 and connects the diode D1 and earth resistance C23 having and connecing.
Connect end U7-7 and connect resistance R42 and two poles having single-chip microcomputer TC4013BP, single-chip microcomputer TC4013BP to pass through concatenation
Pipe D3 connects the base stage having audion Q1, and the colelctor electrode of audion Q1 is connected by electric capacity C31 resistance R47 and transport and placing device U7A
In-phase input end, resistance R47 and be connected end U6-7 and transport and placing device U7A inverting input connect, the outfan of transport and placing device U7A
Being connected by the electric capacity C34 and resistance R49 of concatenation and have the inverting input of transport and placing device U8A, the outfan of transport and placing device U8A connects to be had
Resistance R69 and electric capacity C41.
Resistance R69 connects the base stage having audion Q2, and the colelctor electrode of audion Q2 has been sequentially connected in series resistance R50 and three rule
The LED that lattice are identical, electric capacity C41 is connected with earth resistance R67 and earth resistance R65 in turn, and earth resistance R65 is connected to monolithic
The pin 1 of machine 13700D, single-chip microcomputer 13700D is connected by resistance R7 resistance R70 and electric capacity C43, resistance R70 and electric capacity C43
It is all connected to REM external line traffic control end, by resistance R68 short circuit between pin 2 and the pin 8 of single-chip microcomputer 13700D, pin 2 simultaneously
And it is also associated with ground capacity C42 between resistance R68, connects between pin 5 and the pin 7 of single-chip microcomputer 13700D and organize resistance more
R63 and the pins 5 of port C-SW, single-chip microcomputer 13700D being connected with many group resistance R63 have transport and placing device also by resistance R39 connection
U8B, transport and placing device U8B are connected by electric capacity C38 earth resistance R51 and resistance R53, and resistance R53 is connected by resistance R54 fortune
Put device U9B, transport and placing device U9B electric capacity C39, resistance R55 by series connection and variable resistance VR1B connection has transport and placing device U9A and amplifier
The inverting input of device U10A, transport and placing device U9A and outfan short circuit, and draw resistance R72 and resistance R7 respectively, resistance R72 connects
Entering to connecting on end U2-6, resistance R7 is linked on the connection end U2-2 on another drive circuit resistance R17, and transport and placing device U10A leads to
The in-phase input end crossing electric capacity C44 and transport and placing device U10B is connected, and the in-phase input end of transport and placing device U10B is also associated with resistance R78,
The inverting input of transport and placing device U10B connects resistance R74, resistance R75 and the resistance R77 having parallel connection, and resistance R74 receives transport and placing device
The in-phase input end of U9A, resistance R75 connects has variable resistance VR2A, resistance R78 to connect variable resistance VR2B.
REM external line traffic control end is also associated with resistance RP51 and resistance RP2, the rectification that resistance RP51 is connected by four groups of head and the tail
Diode DP is connected to one end of transformator TRAN, and the other end of transformator TRAN connects audion QP3 colelctor electrode, audion
QP1 emitter stage and single-chip microcomputer TL494, the emitter stage of audion QP3 is connected on single-chip microcomputer TL494, simultaneously further through resistance
RP38 lead common wire, the common wire of extraction is connected to resistance RP50, electric capacity CP19 and resistance RP49, resistance RP50 and
Electric capacity CP19 is all linked on single-chip microcomputer TL494, and resistance RP49 is also connected to resistance RP45 and the resistance being connected with single-chip microcomputer TL494
RP44, resistance RP44 connect resistance RP46 and the resistance RP48 in parallel with resistance RP46 and electric capacity CP18, single-chip microcomputer TL494's
The defeated end of low level of resistance RP42 and resistance RP43, single-chip microcomputer TL494 that the defeated end of high level enters to be also associated with parallel connection connects electricity
Resistance RP37 and the resistance RP41 being connected with common wire, is connected by electric capacity CP17 between resistance RP42 and resistance RP43.
The colelctor electrode of audion QP1 is connected with the drive end of single-chip microcomputer TL494 by ground capacity CP11, audion QP1
Collection level be connected by the colelctor electrode of resistance RP58 and audion QP2, the emitter stage of audion QP1 is also associated with electric capacity in parallel
CP42, electric capacity CP30 and diode DP45, the collection level of audion QP2 once connects commutation diode ZDP42 and resistance
RP114, resistance RP114 connect has the electric capacity CP43 of parallel connection and diode DP43, electric capacity CP43 to pass through resistance RP23 and common wire
Ground connection after connection, the two ends of diode DP43 connect the first LED and resistance RP2, the first LED two ends loading resistor RP1
And the diode DP42 concatenated with resistance RP1.
The present invention uses high low pass circuit；Input provides linearisation diode to reduce the distortion factor and to allow higher input
Level；With impedance control buffer circuits, since supplement the dynamic range of amplifier；The operation transconductance that two electric currents control
Amplifier；Audio frequency point energy width adjusting；Audio frequency point energy speed extends regulation.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, permissible
Understand and these embodiments can be carried out multiple change without departing from the principles and spirit of the present invention, revise, replace
And modification, the scope of the present invention be defined by the appended.
Claims (1)
1. a bass speed buffering lifter, including two identical drive circuits, it is characterised in that: two drive circuits it
Between connect have impedance control circuit, two drive circuits all include line bank, and the contact of line bank is connected to input IN
With transport and placing device U1B, the outfan of transport and placing device U1B is connected by resistance R20 transport and placing device U2B, the in-phase input end of transport and placing device U2B
With string has resistance R17, resistance R17 to be connected to connect end U2-6, transport and placing device U2B by resistance R21 connecing between inverting input
Earth resistance R18 and electric capacity C16, electric capacity C16 are also connected to earth resistance R19 and transport and placing device U3A, and transport and placing device U3A is by electric capacity C28 also
The in-phase input end and the earth resistance R35 that are connected to electric capacity C27 and resistance R37, electric capacity C27 and transport and placing device U3B are connected, transport and placing device
The inverting input of U3B connects has earth resistance R33, resistance R37 to be connected with transport and placing device U3B outfan, and transport and placing device U3B is defeated simultaneously
Go out end and between inverting input, be connected the resistance R38 having resistance R34 in parallel and electric capacity C25, resistance R37 to be also associated with concatenation
Connect with electric capacity C29, electric capacity C29 and have the resistance R36 and electric capacity C26 of parallel connection, be finally linked into outfan OUT；
Impedance control circuit includes that earth resistance R2, earth resistance R2 connection has electric capacity C6 and electric capacity C5, electric capacity C6 to connect and has fortune
Putting device U5A inverting input, the outfan of transport and placing device U5A is connected with electric capacity C5 and resistance R15, the outfan of transport and placing device U5A with
It is also associated with resistance R3, resistance R15 between inverting input and after secondary amplifies, has connection end by electric capacity C24 connection again
U6-7 and resistance R29, resistance R29 connect transport and placing device U6A inverting input, the inverting input of transport and placing device U6A and outfan
Connecting the resistance R28 and electric capacity C22 having parallel connection, the outfan of transport and placing device U6A concatenates through transport and placing device U7B and with transport and placing device U7B
Resistance R30 connect and have connection end U7-7, connect end U7-7 and connect and have and the diode D1 that connects and earth resistance C23；
Connect end U7-7 and connect the resistance R42 and diode D3 having single-chip microcomputer TC4013BP, single-chip microcomputer TC4013BP to pass through concatenation
Connecting and have the base stage of audion Q1, the colelctor electrode of audion Q1 is connected by electric capacity C31 that resistance R47's and transport and placing device U7A is same
Phase input, resistance R47 connects with the inverting input being connected end U6-7 and transport and placing device U7A, and the outfan of transport and placing device U7A passes through
The electric capacity C34 and resistance R49 of concatenation connect the inverting input having transport and placing device U8A, and the outfan of transport and placing device U8A connects resistance
R69 and electric capacity C41；
Resistance R69 connects the base stage having audion Q2, and the colelctor electrode of audion Q2 has been sequentially connected in series resistance R50 and three specification phases
Same LED, electric capacity C41 is connected with earth resistance R67 and earth resistance R65 in turn, and earth resistance R65 is connected to single-chip microcomputer
The pin 1 of 13700D, single-chip microcomputer 13700D is connected by resistance R7 has resistance R70 and electric capacity C43, resistance R70 and electric capacity C43 equal
Be connected to REM external line traffic control end, by resistance R68 short circuit between pin 2 and the pin 8 of single-chip microcomputer 13700D, simultaneously pin 2 with
It is also associated with ground capacity C42 between resistance R68, connects between pin 5 and the pin 7 of single-chip microcomputer 13700D and organize resistance more
R63 and the pins 5 of port C-SW, single-chip microcomputer 13700D being connected with many group resistance R63 have transport and placing device also by resistance R39 connection
U8B, transport and placing device U8B are connected by electric capacity C38 earth resistance R51 and resistance R53, and resistance R53 is connected by resistance R54 fortune
Put device U9B, transport and placing device U9B electric capacity C39, resistance R55 by series connection and variable resistance VR1B connection has transport and placing device U9A and amplifier
The inverting input of device U10A, transport and placing device U9A and outfan short circuit, and draw resistance R72 and resistance R7 respectively, resistance R72 connects
Entering to connecting on end U2-6, resistance R7 is linked on the connection end U2-2 on another drive circuit resistance R17, and transport and placing device U10A leads to
The in-phase input end crossing electric capacity C44 and transport and placing device U10B is connected, and the in-phase input end of transport and placing device U10B is also associated with resistance R78,
The inverting input of transport and placing device U10B connects resistance R74, resistance R75 and the resistance R77 having parallel connection, and resistance R74 receives transport and placing device
The in-phase input end of U9A, resistance R75 connects has variable resistance VR2A, resistance R78 to connect variable resistance VR2B；
REM external line traffic control end is also associated with resistance RP51 and resistance RP2, rectification two pole that resistance RP51 is connected by four groups of head and the tail
Pipe DP is connected to one end of transformator TRAN, and the other end of transformator TRAN connects audion QP3 colelctor electrode, audion QP1
Emitter stage and single-chip microcomputer TL494, the emitter stage of audion QP3 is connected on single-chip microcomputer TL494, draws further through resistance RP38 simultaneously
Shaping common wire, the common wire of extraction is connected to resistance RP50, electric capacity CP19 and resistance RP49, resistance RP50 and electric capacity
CP19 is all linked on single-chip microcomputer TL494, and resistance RP49 is also connected to resistance RP45 and the resistance being connected with single-chip microcomputer TL494
RP44, resistance RP44 connect resistance RP46 and the resistance RP48 in parallel with resistance RP46 and electric capacity CP18, single-chip microcomputer TL494's
The defeated end of low level of resistance RP42 and resistance RP43, single-chip microcomputer TL494 that the defeated end of high level enters to be also associated with parallel connection connects electricity
Resistance RP37 and the resistance RP41 being connected with common wire, is connected by electric capacity CP17 between resistance RP42 and resistance RP43；
The colelctor electrode of audion QP1 is connected with the drive end of single-chip microcomputer TL494 by ground capacity CP11, the collection of audion QP1
Level is connected by the colelctor electrode of resistance RP58 and audion QP2, and the emitter stage of audion QP1 is also associated with the electric capacity of parallel connection
CP42, electric capacity CP30 and diode DP45, the collection level of audion QP2 once connects commutation diode ZDP42 and resistance
RP114, resistance RP114 connect has the electric capacity CP43 of parallel connection and diode DP43, electric capacity CP43 to pass through resistance RP23 and common wire
Ground connection after connection, the two ends of diode DP43 connect the first LED and resistance RP2, the first LED two ends loading resistor RP1
And the diode DP42 concatenated with resistance RP1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644298.9A CN106101935A (en) | 2016-08-09 | 2016-08-09 | A kind of bass speed buffering lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644298.9A CN106101935A (en) | 2016-08-09 | 2016-08-09 | A kind of bass speed buffering lifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106101935A true CN106101935A (en) | 2016-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610644298.9A Pending CN106101935A (en) | 2016-08-09 | 2016-08-09 | A kind of bass speed buffering lifter |
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Citations (6)
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| US5509080A (en) * | 1994-03-14 | 1996-04-16 | Peavey Electronics Corporation | Bass clipping circuit |
| CN2394380Y (en) * | 2000-02-18 | 2000-08-30 | 江苏新科电子集团公司 | Superbass power amplifier |
| CN2836337Y (en) * | 2005-09-14 | 2006-11-08 | 胡德荣 | Low-frequency single track power amplifier |
| US7466829B1 (en) * | 1999-08-24 | 2008-12-16 | Logitech Europe S.A. | Dynamic bass equalization with modified sallen-key high pass filter |
| CN102598137A (en) * | 2009-09-11 | 2012-07-18 | 巴里·史蒂芬·戈德法布 | Phase layering apparatus and method for a complete audio signal |
| CN205961408U (en) * | 2016-08-09 | 2017-02-15 | 浙江宝狮电子有限公司 | High -speed lifting mechanism that cushions of bass |
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2016
- 2016-08-09 CN CN201610644298.9A patent/CN106101935A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5509080A (en) * | 1994-03-14 | 1996-04-16 | Peavey Electronics Corporation | Bass clipping circuit |
| US7466829B1 (en) * | 1999-08-24 | 2008-12-16 | Logitech Europe S.A. | Dynamic bass equalization with modified sallen-key high pass filter |
| CN2394380Y (en) * | 2000-02-18 | 2000-08-30 | 江苏新科电子集团公司 | Superbass power amplifier |
| CN2836337Y (en) * | 2005-09-14 | 2006-11-08 | 胡德荣 | Low-frequency single track power amplifier |
| CN102598137A (en) * | 2009-09-11 | 2012-07-18 | 巴里·史蒂芬·戈德法布 | Phase layering apparatus and method for a complete audio signal |
| CN205961408U (en) * | 2016-08-09 | 2017-02-15 | 浙江宝狮电子有限公司 | High -speed lifting mechanism that cushions of bass |
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| Title |
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| 张正苏;盛程潜;徐泽清;: "基于SEPP的音频功率放大器的研究", 黑龙江工程学院学报(自然科学版), no. 02, 25 June 2011 (2011-06-25) * |
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