CN105635923A - Electronic hearing aid - Google Patents
Electronic hearing aid Download PDFInfo
- Publication number
- CN105635923A CN105635923A CN201510996501.4A CN201510996501A CN105635923A CN 105635923 A CN105635923 A CN 105635923A CN 201510996501 A CN201510996501 A CN 201510996501A CN 105635923 A CN105635923 A CN 105635923A
- Authority
- CN
- China
- Prior art keywords
- resistor
- power supply
- terminal
- coupled
- voltage
- 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.)
- Pending
Links
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
- H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
-
- 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
Landscapes
- 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 electronic hearing aid comprising a microphone, a first capacitor and a second capacitor. The positive electrode end of the microphone is connected with a first resistor, and the negative electrode end of the microphone is connected with the negative electrode of a power supply. The first resistor is connected with an earphone jack which is connected with the positive electrode of the power supply. The first capacitor is connected with the common end of the microphone and the first resistor, and the second end of the first capacitor is connected with a second resistor. The second resistor is connected with the first end of an adjustable resistor. The second end of the adjustable resistor is connected with the input end of a COMS amplifier. The output end of the COMS amplifier is connected with the sliding end of the adjustable resistor through a third resistor. The first end of the second capacitor is connected with the output end of the COMS amplifier, and the second end of the second capacitor is connected with the base electrode of a PNP transistor. The collection electrode of the PNP transistor is connected with the positive electrode of the power supply. The emission electrode of the PNP transistor is connected with the negative electrode of the power supply which is connected with the base electrode of the PNP transistor through a fourth resistor.
Description
Technical field
The present invention relates to electronic technology field, in particular to a kind of electronic hearing aid.
Background technology
Existing electronic hearing aid price height, volume is big, and power consumption, and the elderly needs to open switch the used time and just can help and listen, very inconvenient.
The volume of electronic hearing aid is big, mainly determine by power supply, the electric energy conversion efficiency of power supply is low, must be made up by cell container, how to improve the electric energy conversion efficiency of power supply, reduce battery volume, and then reduce the overall volume of electronic hearing aid, what strengthen user wears experience, is current problem demanding prompt solution.
Summary of the invention
The present invention proposes a kind of electronic hearing aid, solves existing electronic hearing aid price height, and volume is big, and the problem of power consumption.
The technical scheme of the present invention is achieved in that
A kind of electronic hearing aid, comprising: microphone, and 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; 2nd end of described first resistor is connected to the first end of receiver J-Horner, and the 2nd end of earphone jack is connected to the positive pole of described power supply; First electrical condenser, its first end is connected to the public end of described microphone and the first resistor, its the 2nd end is connected to the first end of the 2nd resistor, 2nd end of the 2nd resistor is connected to the first end of adjustable resistor, 2nd end of adjustable resistor is connected to the input terminus of COMS amplifier, the output terminal of COMS amplifier is connected to the sliding end of described adjustable resistor by the 3rd resistor, and wherein, COMS amplifier comprises three non-doors being connected in series; 2nd electrical condenser, its first end is connected to the output terminal of described COMS amplifier, its the 2nd 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 emtting electrode 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 power supply;
EMI electric capacity, is coupled between input port and reference ground;
Absolute value circuit, is coupled to EMI electric capacity to receive the voltage at EMI electric capacity two ends, and produces absolute value of voltage based on EMI electric capacity both end voltage;
Comparison circuit, has the first input terminal, the 2nd input terminal and output terminal, and its first input terminal is coupled to absolute value circuit receiver voltage absolute value, the 2nd input terminal receiver voltage reference signal, and its output terminal produces to compare signal;
Switch, has the first terminal, two-terminal and control terminal, and its first terminal is coupled to input port, its control terminal be coupled to comparison circuit output terminal receive compare signal; Bleeder resistance, is coupled between the two-terminal of switch and reference ground; And
Voltage transitions device, is coupled to input port and receives power supply, and produce output voltage based on power supply;
Described voltage transitions device comprises step-down controller;
Described comparison circuit comprises comparer;
Described comparison circuit comprises hysteresis comparator.
The invention has the beneficial effects as follows: electronic hearing aid simplicity of design is reliable, it may also be useful to convenient, reduce 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, it is 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, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic circuit of a kind of electronic hearing aid of the present invention;
Fig. 2 is the schematic circuit of the power supply of the present invention;
Fig. 3 is the schematic circuit of another embodiment of the power supply of the present invention.
Embodiment
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 clearly and completely described, it is clear that 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 other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, a kind of electronic hearing aid 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; 2nd end of the first resistor 21 is connected to the first end of receiver J-Horner 50, and the 2nd end of earphone jack 50 is connected to the positive pole of power supply 60; First electrical condenser 31, its first end is connected to the public end of microphone 10 and the first resistor 21, its the 2nd end is connected to the first end of the 2nd resistor 22,2nd end of the 2nd resistor 22 is connected to the first end of adjustable resistor 25,2nd end of adjustable resistor 25 is connected to the input terminus of COMS amplifier, the output terminal of COMS amplifier is connected to the sliding end of adjustable resistor 25 by the 3rd resistor 23, wherein, COMS amplifier comprises three non-doors 71 being connected in series, non-door 72 and Fei Men 73; 2nd electrical condenser 32, its first end is connected to the output terminal of COMS amplifier, its the 2nd 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 emtting electrode 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, the power supply 100 of the present invention comprises: input port 101, receives power supply Vin; EMI electric capacity 11, is coupled between input port 101 and reference ground; Absolute value circuit 12, is coupled to EMI electric capacity 11 to receive the voltage at EMI electric capacity 11 two ends, and produces absolute value of voltage based on EMI electric capacity both end voltage; Comparison circuit 13, has the first input terminal, the 2nd input terminal and output terminal, and its first input terminal is coupled to absolute value circuit 12 receiver voltage absolute value, the 2nd input terminal receiver voltage reference signal Vref, and its output terminal produces to compare signal; Switch 14, has the first terminal, two-terminal and control terminal, its first terminal be coupled to input port 101, its control terminal be coupled to comparison circuit 13 output terminal receive compare signal; Bleeder resistance 15, is coupled between the two-terminal of switch 14 and reference ground; And voltage transitions device 16, it is coupled to input port 101 and receives power supply Vin, and produce output voltage Vo based on power supply Vin.
Fig. 3 is the electrical block diagram of power supply 200 in accordance with another embodiment of the present invention. Power supply 200 shown in Fig. 3 is similar to power supply 100 shown in Fig. 2, with power supply 100 shown in Fig. 2 the difference is that, the comparison circuit of power supply 200 shown in Fig. 3 comprises hysteresis comparator. Misleading of the switch 15 that this hysteresis comparator avoids the EMI electric capacity both end voltage fluctuation because noise or interference etc. cause and causes, thus make comparison circuit accurately judge whether power supply disconnects from power supply, and then by switch 15 conducting, EMI electric capacity two ends electric charge is released by bleeder resistance 15.
Transistor is connected into emitter follower form, is amplified by the exchange signal that cmos amplifier is exported by the 2nd condenser coupling, promotes common headphones, and wherein, the 4th resistor is biasing resistor. Complete machine adopts that earphone jack is double makes power switch, and the power supply connection when headset plug insert, when plug is extracted, power supply cuts off automatically, simplifies circuit structure, reduces machine volume.
The electronic hearing aid simplicity of design of the present invention is reliable, it may also be useful to convenient, reduces machine volume.
The foregoing is only the better 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 of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. an electronic hearing aid, it is characterised 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; 2nd end of described first resistor is connected to the first end of receiver J-Horner, and the 2nd end of earphone jack is connected to the positive pole of described power supply;
First electrical condenser, its first end is connected to the public end of described microphone and the first resistor, its the 2nd end is connected to the first end of the 2nd resistor, 2nd end of the 2nd resistor is connected to the first end of adjustable resistor, 2nd end of adjustable resistor is connected to the input terminus of COMS amplifier, the output terminal of COMS amplifier is connected to the sliding end of described adjustable resistor by the 3rd resistor, and wherein, COMS amplifier comprises three non-doors being connected in series;
2nd electrical condenser, its first end is connected to the output terminal of described COMS amplifier, its the 2nd 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 emtting electrode 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 power supply;
EMI electric capacity, is coupled between input port and reference ground;
Absolute value circuit, is coupled to EMI electric capacity to receive the voltage at EMI electric capacity two ends, and produces absolute value of voltage based on EMI electric capacity both end voltage;
Comparison circuit, has the first input terminal, the 2nd input terminal and output terminal, and its first input terminal is coupled to absolute value circuit receiver voltage absolute value, the 2nd input terminal receiver voltage reference signal, and its output terminal produces to compare signal;
Switch, has the first terminal, two-terminal and control terminal, and its first terminal is coupled to input port, its control terminal be coupled to comparison circuit output terminal receive compare signal; Bleeder resistance, is coupled between the two-terminal of switch and reference ground; And
Voltage transitions device, is coupled to input port and receives power supply, and produce output voltage based on power supply;
Described voltage transitions device comprises step-down controller;
Described comparison circuit comprises comparer;
Described comparison circuit comprises hysteresis comparator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510996501.4A CN105635923A (en) | 2015-12-25 | 2015-12-25 | Electronic hearing aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510996501.4A CN105635923A (en) | 2015-12-25 | 2015-12-25 | Electronic hearing aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105635923A true CN105635923A (en) | 2016-06-01 |
Family
ID=56050336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510996501.4A Pending CN105635923A (en) | 2015-12-25 | 2015-12-25 | Electronic hearing aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105635923A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108024190A (en) * | 2016-11-03 | 2018-05-11 | 大北欧听力公司 | Include the hearing device of switching capacity dc-dc |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101471646A (en) * | 2007-12-29 | 2009-07-01 | 上海贝岭股份有限公司 | Circuit and method for detecting and controlling signal slope |
| CN102647081A (en) * | 2011-08-17 | 2012-08-22 | 成都芯源系统有限公司 | Switch voltage stabilizing circuit and method thereof |
| CN103051218A (en) * | 2012-12-12 | 2013-04-17 | 青岛联盟电子仪器有限公司 | Flyback converter |
| CN103051187A (en) * | 2012-12-12 | 2013-04-17 | 青岛联盟电子仪器有限公司 | Switching power supply circuit under double ring control |
| EP1835708B1 (en) * | 2006-03-13 | 2013-05-08 | Starkey Laboratories, Inc. | Output phase modulation entrainment containment for digital filters |
| CN203340285U (en) * | 2013-06-21 | 2013-12-11 | 青岛滨海学院 | Electronic hearing aid |
-
2015
- 2015-12-25 CN CN201510996501.4A patent/CN105635923A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1835708B1 (en) * | 2006-03-13 | 2013-05-08 | Starkey Laboratories, Inc. | Output phase modulation entrainment containment for digital filters |
| CN101471646A (en) * | 2007-12-29 | 2009-07-01 | 上海贝岭股份有限公司 | Circuit and method for detecting and controlling signal slope |
| CN102647081A (en) * | 2011-08-17 | 2012-08-22 | 成都芯源系统有限公司 | Switch voltage stabilizing circuit and method thereof |
| CN103051218A (en) * | 2012-12-12 | 2013-04-17 | 青岛联盟电子仪器有限公司 | Flyback converter |
| CN103051187A (en) * | 2012-12-12 | 2013-04-17 | 青岛联盟电子仪器有限公司 | Switching power supply circuit under double ring control |
| CN203340285U (en) * | 2013-06-21 | 2013-12-11 | 青岛滨海学院 | Electronic hearing aid |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108024190A (en) * | 2016-11-03 | 2018-05-11 | 大北欧听力公司 | Include the hearing device of switching capacity dc-dc |
| CN108024190B (en) * | 2016-11-03 | 2021-07-06 | 大北欧听力公司 | Hearing device comprising a switched capacitor DC-DC converter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203340285U (en) | Electronic hearing aid | |
| CN205610297U (en) | Energy -conservation automatic control circuit that charges | |
| CN105635923A (en) | Electronic hearing aid | |
| CN205921562U (en) | Single mains operated operational amplifier circuit | |
| CN209184279U (en) | A kind of USB-PD and USBA mouthfuls of universal circuits | |
| CN105491497A (en) | Hearing-aid instrument for hearing impairment | |
| CN203786237U (en) | Alternating current zero line and fire line identification circuit | |
| CN105554672A (en) | Electronic hearing aid device for the old aged | |
| CN104852429A (en) | Smart watch charging base integrated with music playing function | |
| CN105554668A (en) | Hearing impairment assist device | |
| CN105472523A (en) | Electronic hearing aid | |
| CN204807617U (en) | Peak value detection circuit | |
| CN105472517A (en) | Hearing-aid device | |
| CN105554665A (en) | Hearing assist instrument | |
| CN105554667A (en) | Portable hearing aid | |
| CN204732947U (en) | A kind of charging control circuit for mobile phone | |
| CN105491484A (en) | Hearing assistance device | |
| CN105554666A (en) | Hearing aid for old people | |
| CN105491499A (en) | Elderly hearing aid | |
| CN105530582A (en) | Portable hearing aid | |
| CN204859493U (en) | Adopt head circuit of discrete component equipment | |
| CN105554671A (en) | Hearing-aid | |
| CN105491498A (en) | Hearing assistance instrument | |
| CN105530583A (en) | Hearing impairment auxiliary device | |
| CN105472518A (en) | Hearing aid device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160601 |
|
| WD01 | Invention patent application deemed withdrawn after publication |