CN105554672A - Electronic hearing aid device for the old aged - Google Patents
Electronic hearing aid device for the old aged Download PDFInfo
- Publication number
- CN105554672A CN105554672A CN201511002340.9A CN201511002340A CN105554672A CN 105554672 A CN105554672 A CN 105554672A CN 201511002340 A CN201511002340 A CN 201511002340A CN 105554672 A CN105554672 A CN 105554672A
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- CN
- China
- Prior art keywords
- resistor
- coupled
- lead
- out terminal
- power supply
- Prior art date
- 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
-
- 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
- H04R25/50—Customised settings for obtaining desired overall acoustical characteristics
- H04R25/505—Customised settings for obtaining desired overall acoustical characteristics using digital signal processing
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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
- H04R2225/51—Aspects of antennas or their circuitry in or for hearing aids
Abstract
The invention provides an electronic hearing aid device for the old aged, which comprises a microphone, a first capacitor and a second capacitor, wherein the anode end of the microphone is connected to a first resistor and the cathode end of the microphone is connected to the cathode of a power supply; the first resistor is connected to an earphone jack, and the earphone jack is connected to the anode of the power supply; the first capacitor is connected to the common port of the microphone and the first resistor, the second end of the first capacitor is connected to a second resistor, the second resistor is connected to the first end of an adjustable resistor, the second end of the adjustable resistor is connected to the input end of a COMS (Complementary Metal Oxide Semiconductor) amplifier, and the output end of the COMS amplifier is connected to the sliding end of the adjustable resistor; the first end of the second capacitor is connected to the output end of the COMS amplifier, the second end of the second capacitor is connected to a base electrode 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 is connected to the base electrode thereof through a fourth resistor.
Description
Technical field
The present invention relates to electronic technology field, particularly the old electronic hearing aid devices of one.
Background technology
Existing old electronic hearing aid devices 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 old electronic hearing aid devices 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 old electronic hearing aid devices, what strengthen user wears experience, is current problem demanding prompt solution.
Summary of the invention
The present invention proposes a kind of old electronic hearing aid devices, solves existing old electronic hearing aid devices price high, and volume is large, and the problem of power consumption.
Technical scheme of the present invention is achieved in that
A kind of old electronic hearing aid devices, 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;
Upper power switch and lower power switch, be coupled in series between input port and reference ground;
Output inductor, between the coupled in series node being coupled in power switch and lower power switch 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;
Error amplifier, has in-phase input end, inverting input and lead-out terminal, and its inverting input receives reference voltage, and its in-phase input end is coupled to feedback component and receives feedback voltage, and its lead-out terminal produces error amplification signal;
Clamper, is coupled between the lead-out terminal of error amplifier and reference ground;
Frequency comparator, has in-phase input end, inverting input and lead-out terminal, and the lead-out terminal that its inverting input is coupled to error amplifier receives error amplification signal, 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 upper power switch and lower power switch.
The invention has the beneficial effects as follows: old electronic hearing aid devices 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 old electronic hearing aid devices of the present invention;
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, the old electronic hearing aid devices of one of the present invention, comprising: microphone 10, and 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; Upper power switch 103 and lower power switch 104, be coupled in series between input port 101 and reference ground; Output inductor 105, between the coupled in series node being coupled in power switch 103 and lower power switch 104 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; Error amplifier 108, has in-phase input end, inverting input and lead-out terminal, and its inverting input receives reference voltage Vref, and its in-phase input end is coupled to feedback component 107 and receives feedback voltage Vfb, and its lead-out terminal produces error amplification signal Vc; Clamper 109, is coupled between the lead-out terminal of error amplifier 108 and reference ground; Frequency comparator 110, has in-phase input end, inverting input and lead-out terminal, and the lead-out terminal that its inverting input is coupled to error amplifier 108 receives error amplification signal Vc, 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 upper power switch 103 and lower power switch 104.
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.
Old electronic hearing aid devices 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 old electronic hearing aid devices, 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;
Upper power switch and lower power switch, be coupled in series between input port and reference ground;
Output inductor, between the coupled in series node being coupled in power switch and lower power switch 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;
Error amplifier, has in-phase input end, inverting input and lead-out terminal, and its inverting input receives reference voltage, and its in-phase input end is coupled to feedback component and receives feedback voltage, and its lead-out terminal produces error amplification signal;
Clamper, is coupled between the lead-out terminal of error amplifier and reference ground;
Frequency comparator, has in-phase input end, inverting input and lead-out terminal, and the lead-out terminal that its inverting input is coupled to error amplifier receives error amplification signal, 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 upper power switch and lower power switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002340.9A CN105554672A (en) | 2015-12-25 | 2015-12-25 | Electronic hearing aid device for the old aged |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511002340.9A CN105554672A (en) | 2015-12-25 | 2015-12-25 | Electronic hearing aid device for the old aged |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105554672A true CN105554672A (en) | 2016-05-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511002340.9A Pending CN105554672A (en) | 2015-12-25 | 2015-12-25 | Electronic hearing aid device for the old aged |
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| Country | Link |
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| CN (1) | CN105554672A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249793A (en) * | 2016-07-20 | 2016-12-21 | 瑞声声学科技(深圳)有限公司 | Power regulator circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1781240A (en) * | 2004-02-26 | 2006-05-31 | 半导体元件工业有限责任公司 | Power supply controller and structure |
| CN102916595A (en) * | 2012-10-25 | 2013-02-06 | 深圳市明微电子股份有限公司 | Switching power supply and multi-threshold switching circuit thereof |
| CN203340285U (en) * | 2013-06-21 | 2013-12-11 | 青岛滨海学院 | Electronic hearing aid |
| CN203352442U (en) * | 2013-07-02 | 2013-12-18 | 西南交通大学 | Fixed-frequency constant on-off time controlling apparatus of dynamic adjusting switch converter |
-
2015
- 2015-12-25 CN CN201511002340.9A patent/CN105554672A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1781240A (en) * | 2004-02-26 | 2006-05-31 | 半导体元件工业有限责任公司 | Power supply controller and structure |
| CN102916595A (en) * | 2012-10-25 | 2013-02-06 | 深圳市明微电子股份有限公司 | Switching power supply and multi-threshold switching circuit thereof |
| CN203340285U (en) * | 2013-06-21 | 2013-12-11 | 青岛滨海学院 | Electronic hearing aid |
| CN203352442U (en) * | 2013-07-02 | 2013-12-18 | 西南交通大学 | Fixed-frequency constant on-off time controlling apparatus of dynamic adjusting switch converter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106249793A (en) * | 2016-07-20 | 2016-12-21 | 瑞声声学科技(深圳)有限公司 | Power regulator circuit |
| CN106249793B (en) * | 2016-07-20 | 2018-02-23 | 瑞声声学科技(深圳)有限公司 | Power regulator circuit |
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Application publication date: 20160504 |
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