CN105472522A - Ear barrier hearing aid device - Google Patents
Ear barrier hearing aid device Download PDFInfo
- Publication number
- CN105472522A CN105472522A CN201510999012.4A CN201510999012A CN105472522A CN 105472522 A CN105472522 A CN 105472522A CN 201510999012 A CN201510999012 A CN 201510999012A CN 105472522 A CN105472522 A CN 105472522A
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- China
- Prior art keywords
- terminal
- coupled
- resistor
- voltage
- switch
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
-
- 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
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
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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
- H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
- H04R2225/61—Aspects relating to mechanical or electronic switches or control elements, e.g. functioning
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Neurosurgery (AREA)
- Otolaryngology (AREA)
- Amplifiers (AREA)
Abstract
The invention provides an ear barrier hearing aid device. The ear barrier hearing aid device comprises a microphone, wherein a positive end of the microphone is connected to a first resistor, and a negative end of the microphone is connected to a cathode of a power supply; the first resistor, which is connected to a headphone jack, and the headphone jack is connected to an anode of the power supply; a first capacitor, which is connected to a common port of the microphone and the first resistor, wherein a second end of the first capacitor is connected to a second resistor, the second resistor is connected to a first end of an adjustable resistor, a second end of the adjustable resistor is connected to an input end of a COMS (Complementary Metal Oxide Semiconductor) amplifier and an output end of the COMS amplifier is connected to a sliding end of the adjustable resistor through a third resistor; and a second capacitor, wherein a first end of the second capacitor is connected to the output end of the COMS amplifier, a second end of the second capacitor is connected to a base of a PNP transistor, a collector of the PNP transistor is connected to the anode of the power supply, and an emitter of the PNP transistor is connected to the cathode of the power supply and connected to a base of the PNP transistor through a fourth resistor.
Description
Technical field
The present invention relates to electronic technology field, particularly a kind of ear barrier auditory prosthesis.
Background technology
Existing ear barrier auditory prosthesis price is high, and volume is large, and power consumption, and the elderly needs the used time to open switch ability hearing aid, very inconvenient.
The volume of ear barrier auditory prosthesis is large, mainly determined by power supply, the electric energy conversion efficiency of power supply is low, must be made up by battery capacity, how to improve the electric energy conversion efficiency of power supply, reduce battery volume, and then reduce the overall volume of ear barrier auditory prosthesis, what strengthen user wears experience, is current problem demanding prompt solution.
Summary of the invention
The present invention proposes a kind of ear barrier auditory prosthesis, and solve existing ear barrier auditory prosthesis price high, volume is large, and the problem of power consumption.
Technical scheme of the present invention is achieved in that
A kind of ear barrier auditory prosthesis, comprising: microphone, its positive terminal is connected to the first end of the first resistor, and its negative pole end is connected to the negative pole of power supply; Second end of described first resistor is connected to the first end of receiver J-Horner, and the second end of earphone jack is connected to the positive pole of described power supply; First capacitor, its first end is connected to the common port of described microphone and the first resistor, its the second end is connected to the first end of the second resistor, second end of the second resistor is connected to the first end of adjustable resistor, second end of adjustable resistor is connected to the input of COMS amplifier, the output of COMS amplifier is connected to the sliding end of described adjustable resistor by the 3rd resistor, wherein, COMS amplifier comprises three not gates be connected in series; Second capacitor, its first end is connected to the output of described COMS amplifier, its the second end is connected to the base stage of PNP transistor, the collector electrode of PNP transistor is connected to the positive pole of described power supply, and the emitter of PNP transistor is connected to the negative pole of described power supply and is connected to its base stage by the 4th resistor;
Described power supply comprises:
Input port, receives input voltage;
Output port, provides output voltage;
Input inductor and the first power switch, be coupled in series between input port and reference ground;
Second power switch, is coupled between the coupled in series node of the first power switch and input inductor and output port;
Output capacitor, is coupled between output port and reference ground;
Feedback component, is coupled to output port and receives output voltage, and produce the feedback voltage of reflection output voltage;
Voltage comparator, has in-phase input end, inverting input and lead-out terminal, its inverting input threshold level voltage, and its in-phase input end is coupled to feedback component and receives feedback voltage, and its lead-out terminal produces voltage comparison signal;
First logic switch, have the first terminal, the second terminal and control terminal, its first terminal couples first frequency signal, and its control terminal is coupled to the lead-out terminal receiver voltage comparison signal of voltage comparator;
Second logic switch, there is the first terminal, the second terminal and control terminal, its the first terminal couples second frequency signal, its control terminal is coupled to the lead-out terminal receiver voltage comparison signal of voltage comparator, second terminal of wherein said first logic switch provides frequency reference signal together with being coupled in the second terminal of the second logic switch;
Frequency comparator, has in-phase input end, inverting input and lead-out terminal, and its inverting input is coupled to the second terminal of the first logic switch and the second terminal reception frequency reference signal of the second logic switch, and its lead-out terminal provides clock signal;
Sawtooth generator, is coupled to the lead-out terminal receive clock signal of frequency comparator, and provides sawtooth signal to the in-phase input end of frequency comparator based on clock signal;
Control and drive circuit, be coupled to the lead-out terminal receive clock signal of frequency comparator, and based on clock signal, produce double switch drive singal, to control the break-make of the first power switch and the second power switch;
Described first logic switch is high level conducting;
Described second logic switch is low level conducting;
Described first frequency signal is greater than second frequency signal;
Described feedback component comprises and is coupled in series in output port and with reference to the first resistance between ground and the second resistance, wherein feedback voltage produces at the coupled in series Nodes of the first resistance and the second resistance;
Described sawtooth generator comprises:
Charging current source, charging capacitor and reset switch, three's coupled in parallel at the in-phase input end of frequency comparator with reference between ground, wherein
Described reset switch comprises control terminal further, and described control terminal is coupled to the lead-out terminal receive clock signal of frequency comparator.
The invention has the beneficial effects as follows:
Ear barrier auditory prosthesis simplicity of design is reliable, easy to use, reduces machine volume.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the circuit diagram of a kind of ear barrier of the present invention auditory prosthesis;
Fig. 2 is the circuit diagram of power supply of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, a kind of ear barrier auditory prosthesis of the present invention, comprising: microphone 10, its positive terminal is connected to the first end of the first resistor 21, and its negative pole end is connected to the negative pole of power supply 60; Second end of the first resistor 21 is connected to the first end of receiver J-Horner 50, and the second end of earphone jack 50 is connected to the positive pole of power supply 60; First capacitor 31, its first end is connected to the common port of microphone 10 and the first resistor 21, its second end is connected to the first end of the second resistor 22, second end of the second resistor 22 is connected to the first end of adjustable resistor 25, second end of adjustable resistor 25 is connected to the input of COMS amplifier, the output of COMS amplifier is connected to the sliding end of adjustable resistor 25 by the 3rd resistor 23, wherein, COMS amplifier comprises three not gates be connected in series 71, not gate 72 and not gate 73; Second capacitor 32, its first end is connected to the output of COMS amplifier, its the second end is connected to the base stage of PNP transistor 40, the collector electrode of PNP transistor 40 is connected to the positive pole of power supply 60, and the emitter of PNP transistor 40 is connected to the negative pole of power supply 60 and is connected to its base stage by the 4th resistor 24.
Fig. 2 is the electrical block diagram of power supply 100 according to an embodiment of the invention.As shown in Figure 2, power supply 100 of the present invention comprises: input port 101, receives input voltage vin; Output port 102, provides output voltage Vo; Input inductor 103 and the first power switch 104, be coupled in series between input port 101 and reference ground; Second power switch 105, between the coupled in series node being coupled in the first power switch 104 and input inductor 103 and output port 102; Output capacitor 106, is coupled between output port 102 and reference ground; Feedback component 107, is coupled to output port 102 and receives output voltage Vo, and produces the feedback voltage Vfb of reflection output voltage Vo; Voltage comparator 108, has in-phase input end, inverting input and lead-out terminal, its inverting input threshold level voltage Vth, and its in-phase input end is coupled to feedback component 107 and receives feedback voltage Vfb, and its lead-out terminal produces voltage comparison signal; First logic switch 109-1, has the first terminal, the second terminal and control terminal, and its first terminal couples first frequency signal Vf1, and its control terminal is coupled to the lead-out terminal receiver voltage comparison signal of voltage comparator 108; Second logic switch 109-2 has the first terminal, the second terminal and control terminal, and its first terminal couples second frequency signal Vf2, and its control terminal is coupled to the lead-out terminal receiver voltage comparison signal of voltage comparator 108; Together with second terminal of wherein said first logic switch 109-1 is coupled in second terminal of the second logic switch 109-2, provide frequency reference signal Vfr; Frequency comparator 110, there is in-phase input end, inverting input and lead-out terminal, its inverting input is coupled to second terminal of the first logic switch 109-1 and the second terminal reception frequency reference signal Vfr of the second logic switch 109-2, and its lead-out terminal provides clock signal clk; Sawtooth generator 111, is coupled to the lead-out terminal receive clock signal CLK of frequency comparator 110, and provides sawtooth signal Vsw to the in-phase input end of frequency comparator 110 based on clock signal clk; Control and drive circuit 112, be coupled to the lead-out terminal receive clock signal CLK of frequency comparator 110, and based on clock signal clk, produce double switch drive singal, to control the break-make of the first power switch 104 and the second power switch 105.
Preferably, described sawtooth generator 111 comprises: charging current source 11, charging capacitor 12 and reset switch 13, three's coupled in parallel is at the in-phase input end of frequency comparator 110 with reference between ground, wherein said reset switch 13 comprises control terminal further, and described control terminal is coupled to the lead-out terminal receive clock signal CLK of frequency comparator 110.When clock signal clk is low level, reset switch 13 is disconnected, then charging current source 11 charges to charging capacitor 12, the voltage linear at charging capacitor 12 two ends increases, when it increases to the magnitude of voltage of the frequency reference signal Vfr of frequency comparator 110 inverting input, the clock signal clk that frequency comparator 110 exports becomes high level.Correspondingly, reset switch 13 is closed.So charging capacitor 12 is pulled to ground, the voltage at its two ends is reset to zero rapidly, and namely the voltage of frequency comparator 110 in-phase input end is reset to zero.Subsequently, clock signal clk becomes low level, reset switch 13 is disconnected, charging current source 11 restarts to charge to charging capacitor 12, until charging capacitor 12 both end voltage reaches the magnitude of voltage of the frequency reference signal Vfr of frequency comparator 110 inverting input again and shot clock signal CLK becomes high level.Sawtooth generator 111 and frequency comparator 110 work as previously mentioned again and again, thus produce periodically variable sawtooth signal Vsw and clock signal clk.
Preferably, feedback component 107 comprises and is coupled in series in output port 102 and with reference to the first resistance between ground and the second resistance, wherein feedback voltage Vfb produces at the series connection node place of the first resistance and the second resistance.
Preferably, described first logic switch 109-1 is high level conducting, and the second logic switch 109-2 is low level conducting.That is, when feedback voltage Vfb is greater than threshold voltage Vth, the first logic switch 109-1 is switched on, the second logic switch 109-2 is disconnected, and frequency reference signal Vfr is first frequency signal Vf1; When feedback voltage Vfb is less than threshold voltage Vth, the first logic switch 109-1 is disconnected, the second logic switch 109-2 is switched on, and frequency reference signal Vfr is second frequency signal Vf2.
Preferably, first frequency signal Vf1 is greater than second frequency signal Vf2.
When power supply 100 normally runs, when clock signal clk exports high level signal, the double switch drive singal that then control and drive circuit 114 export controls the first power switch 104 conducting, the second power switch 105 disconnects, and input voltage vin is transmitted via input inductor 103, first power switch 104 and output capacitor 106 and is converted into output voltage Vo.Transistor is connected into emitter follower form, amplifies the AC signal that cmos amplifier is exported by the second capacitor-coupled, and promote common headphones, wherein, the 4th resistor is biasing resistor.Complete machine adopts earphone jack to double as mains switch, and when headset plug inserts, power supply is connected, and when plug is extracted, power supply cuts off automatically, simplifies circuit structure, reduces machine volume.
Ear barrier auditory prosthesis simplicity of design of the present invention is reliable, easy to use, reduces machine volume.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. an ear barrier auditory prosthesis, is characterized in that, comprising:
Microphone, its positive terminal is connected to the first end of the first resistor, and its negative pole end is connected to the negative pole of power supply; Second end of described first resistor is connected to the first end of receiver J-Horner, and the second end of earphone jack is connected to the positive pole of described power supply;
First capacitor, its first end is connected to the common port of described microphone and the first resistor, its the second end is connected to the first end of the second resistor, second end of the second resistor is connected to the first end of adjustable resistor, second end of adjustable resistor is connected to the input of COMS amplifier, the output of COMS amplifier is connected to the sliding end of described adjustable resistor by the 3rd resistor, wherein, COMS amplifier comprises three not gates be connected in series;
Second capacitor, its first end is connected to the output of described COMS amplifier, its the second end is connected to the base stage of PNP transistor, the collector electrode of PNP transistor is connected to the positive pole of described power supply, and the emitter of PNP transistor is connected to the negative pole of described power supply and is connected to its base stage by the 4th resistor
Described power supply comprises:
Input port, receives input voltage;
Output port, provides output voltage;
Input inductor and the first power switch, be coupled in series between input port and reference ground;
Second power switch, is coupled between the coupled in series node of the first power switch and input inductor and output port;
Output capacitor, is coupled between output port and reference ground;
Feedback component, is coupled to output port and receives output voltage, and produce the feedback voltage of reflection output voltage;
Voltage comparator, has in-phase input end, inverting input and lead-out terminal, its inverting input threshold level voltage, and its in-phase input end is coupled to feedback component and receives feedback voltage, and its lead-out terminal produces voltage comparison signal;
First logic switch, have the first terminal, the second terminal and control terminal, its first terminal couples first frequency signal, and its control terminal is coupled to the lead-out terminal receiver voltage comparison signal of voltage comparator;
Second logic switch, there is the first terminal, the second terminal and control terminal, its the first terminal couples second frequency signal, its control terminal is coupled to the lead-out terminal receiver voltage comparison signal of voltage comparator, second terminal of wherein said first logic switch provides frequency reference signal together with being coupled in the second terminal of the second logic switch;
Frequency comparator, has in-phase input end, inverting input and lead-out terminal, and its inverting input is coupled to the second terminal of the first logic switch and the second terminal reception frequency reference signal of the second logic switch, and its lead-out terminal provides clock signal;
Sawtooth generator, is coupled to the lead-out terminal receive clock signal of frequency comparator, and provides sawtooth signal to the in-phase input end of frequency comparator based on clock signal;
Control and drive circuit, be coupled to the lead-out terminal receive clock signal of frequency comparator, and based on clock signal, produce double switch drive singal, to control the break-make of the first power switch and the second power switch;
Described first logic switch is high level conducting;
Described second logic switch is low level conducting;
Described first frequency signal is greater than second frequency signal;
Described feedback component comprises and is coupled in series in output port and with reference to the first resistance between ground and the second resistance, wherein feedback voltage produces at the coupled in series Nodes of the first resistance and the second resistance;
Described sawtooth generator comprises:
Charging current source, charging capacitor and reset switch, three's coupled in parallel at the in-phase input end of frequency comparator with reference between ground, wherein
Described reset switch comprises control terminal further, and described control terminal is coupled to the lead-out terminal receive clock signal of frequency comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510999012.4A CN105472522A (en) | 2015-12-25 | 2015-12-25 | Ear barrier hearing aid device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510999012.4A CN105472522A (en) | 2015-12-25 | 2015-12-25 | Ear barrier hearing aid device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105472522A true CN105472522A (en) | 2016-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510999012.4A Pending CN105472522A (en) | 2015-12-25 | 2015-12-25 | Ear barrier hearing aid device |
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| Country | Link |
|---|---|
| CN (1) | CN105472522A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1835708A3 (en) * | 2006-03-13 | 2008-06-11 | Starkey Laboratories, Inc. | Output phase modulation entrainment containment for digital filters |
| CN103036428A (en) * | 2012-12-12 | 2013-04-10 | 青岛联盟电子仪器有限公司 | Peak current gradient synchronous step-down circuit |
| CN103051184A (en) * | 2012-12-12 | 2013-04-17 | 青岛联盟电子仪器有限公司 | Boosted circuit |
| CN103078496A (en) * | 2012-12-12 | 2013-05-01 | 青岛联盟电子仪器有限公司 | Voltage reduction circuit |
| CN103095129A (en) * | 2012-12-12 | 2013-05-08 | 青岛联盟电子仪器有限公司 | Switch frequency hopping synchronous voltage reduction circuit |
| CN203340285U (en) * | 2013-06-21 | 2013-12-11 | 青岛滨海学院 | Electronic hearing aid |
| CN203799382U (en) * | 2014-03-26 | 2014-08-27 | 青岛宝井钢材加工配送有限公司 | Automatic warehouse entering and exiting system |
-
2015
- 2015-12-25 CN CN201510999012.4A patent/CN105472522A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1835708A3 (en) * | 2006-03-13 | 2008-06-11 | Starkey Laboratories, Inc. | Output phase modulation entrainment containment for digital filters |
| CN103036428A (en) * | 2012-12-12 | 2013-04-10 | 青岛联盟电子仪器有限公司 | Peak current gradient synchronous step-down circuit |
| CN103051184A (en) * | 2012-12-12 | 2013-04-17 | 青岛联盟电子仪器有限公司 | Boosted circuit |
| CN103078496A (en) * | 2012-12-12 | 2013-05-01 | 青岛联盟电子仪器有限公司 | Voltage reduction circuit |
| CN103095129A (en) * | 2012-12-12 | 2013-05-08 | 青岛联盟电子仪器有限公司 | Switch frequency hopping synchronous voltage reduction circuit |
| CN203340285U (en) * | 2013-06-21 | 2013-12-11 | 青岛滨海学院 | Electronic hearing aid |
| CN203799382U (en) * | 2014-03-26 | 2014-08-27 | 青岛宝井钢材加工配送有限公司 | Automatic warehouse entering and exiting system |
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Application publication date: 20160406 |
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