CN103188588A - Mobile phone sound-amplifying player with magnetic induction way - Google Patents
Mobile phone sound-amplifying player with magnetic induction way Download PDFInfo
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- CN103188588A CN103188588A CN2013100717490A CN201310071749A CN103188588A CN 103188588 A CN103188588 A CN 103188588A CN 2013100717490 A CN2013100717490 A CN 2013100717490A CN 201310071749 A CN201310071749 A CN 201310071749A CN 103188588 A CN103188588 A CN 103188588A
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Abstract
The invention discloses a mobile phone sound-amplifying player with a magnetic induction way. The mobile phone sound-amplifying player with the magnetic induction way comprises a mobile phone, a magnetic induction receiving converter, an audio power amplifier and a loudspeaker, wherein the magnetic induction receiving converter is used for receiving mobile phone loudspeaker sound magnetism; the audio power amplifier is used for amplifying a sound signal; and the loudspeaker is connected with the output end of the audio power amplifier; the magnetic induction receiving converter has two circuits, wherein the first circuit is a silicon steel plate inductance type magnetic field induction receiving converter circuit, and the second circuit is a magnetic block coil isolation type magnetic field induction receiving converter circuit. The mobile phone sound-amplifying player with the magnetic induction way can be conveniently bonded to various mobile phone sound-amplifying functions; the sound magnetism of the mobile phone loudspeaker is utilized for transmitting induced magnetism by the magnetic induction receiving converter circuit and carrying out magnetic-electric conversion, and transmitting the amplified audio power to the loudspeaker. The mobile phone sound-amplifying player with the magnetic induction way is simple in structure, low in cost and good in sound effect; and moreover, the circuit can be additionally arranged to a loudspeaker box, a table lamp, a moveable illuminator, an art ware and the like.
Description
Technical field
The mobile phone that the present invention relates to the to relate to a kind of magnetic induction way player circuit that amplifies relates in particular to a kind of mobile phone that can any a mobile phone can carry out the magnetic induction way of magnetic induction way player that amplifies.
Background technology
Nowadays mobile phone has become indispensable consumer electronics product in people's life, and its mobile phone amplifies also becomes many consumption fan favors and concern.At present general cell phone manufacturer adopts the data wire ways of connecting to the mobile phone sound amplification function or obtains by Bluetooth technology.Loudspeaker is often incompatible with the data line interface of mobile phone, or does not have Bluetooth function.The consumption fan also will change loudspeaker simultaneously and cause wealth of society waste so greatly when changing mobile phone like this.The mobile phone of the magnetic induction way player that amplifies has been howed than the cost cost of bluetooth technology is low, and the cost between them is 10: 1 than approximately.The mobile phone of the magnetic induction way player that amplifies is easy-to-use, can add to invest on audio amplifier, desk lamp, portable lighting, the handicraft.Realize the mobile phone sound amplification function, the mobile phone of the magnetic induction way player that amplifies will be a kind of market potential demand.
Summary of the invention
Technical problem to be solved by this invention is for solving mobile phone replacing loudspeaker trouble in the prior art, defectives such as manufacturing cost height, and then provide a kind of circuit simple, cost is low, acoustical quality is good, and circuit can add the mobile phone that invests the first-class magnetic induction way of audio amplifier, desk lamp, portable lighting, the handicraft player that amplifies.
The present invention is achieved through the following technical solutions: a kind of mobile phone of magnetic induction way player that amplifies, comprise mobile phone, and for the magnetic induction receiving converter that receives mobile phone loudspeaker sound magnetic, and for the audio-frequency power amplifier that voice signal is amplified, and the loudspeaker that link to each other with the audio-frequency power amplifier output, described magnetic induction receiving converter has two kinds of circuit, first kind is that silicon steel sheet inductive type magnetic field induction receives change-over circuit, and second kind is that the isolated type magnetic field induction of magnetic patch coil receives change-over circuit;
Described silicon steel sheet inductive type magnetic field induction receives induced field L1 and the L2 that change-over circuit comprises that two silicon steel sheet inductance that are cascaded form, described L1 can also connect by single or multiple silicon steel sheet inductance with L2 silicon steel sheet inductance element, also include C1, C2, three block isolating devices of C3, described induced field L1 and L2 output are connected with resistance R 1, described block isolating device C1 output is in series with resistance R 4 and resistance R 5,4 of described block isolating device C1 and resistance R are parallel with resistance R 3, described resistance R 4 two ends are connected with triode Q1, described triode Q1 links to each other with block isolating device C3, and described block isolating device C3 output links to each other with audio-frequency power amplifier;
The isolated type magnetic field induction of described magnetic patch coil receives the induced field L3 that change-over circuit comprises that an isolated ferrite magnetic patch and coil form, described induced field L3 output is connected with resistance R 9, described resistance R 9 outputs are connected with block isolating device C5, described block isolating device output is connected with resistance R 6, described resistance R 6 outputs are connected with resistance R 7, described resistance R 6 inputs and output are connected with field effect transistor Q2, described field effect transistor Q2 is connected with block isolating device C4, and described have block isolating device C4 to link to each other with audio-frequency power amplifier.
Wherein, the essence of block isolating circuit is the lower high pass filter of cut-off frequency; The ferrite magnetic patch is to assemble the magnetic line of force, and the eddy current that coil is produced is launched up; Field effect transistor Q2 belongs to the voltage-controlled type semiconductor device, have the input resistance height (108～109Q), little, low in energy consumption, the dynamic range of noise is big, it is integrated to be easy to, do not have advantages such as secondary-breakdown phenomenon, safety operation area field width.
As optimized technical scheme, be parallel with resistance R 2 between described resistance R 1 and block isolating device C1, resistance R 2 one ends link to each other with block isolating device C2.
As optimized technical scheme, be parallel with resistance R 8 between described block isolating device C5 and the resistance R 6, be parallel with block isolating device C6 between induced field L3 and resistance R 9 outputs.
The invention has the beneficial effects as follows: the present invention can be tied on the various mobile phone sound sound amplification functions easily with traditional data wire ways of connecting or by the different sound load mode of Bluetooth technology.Utilize this feature of sound magnetic of mobile phone loudspeaker, transmit induced magnetism by middle magnetic strength receiving converter circuit, realize the magnetoelectricity conversion, be transferred to loudspeaker after amplifying by audio power then, its signal transport process is: sound magnetic → magnetic → electricity → sound, this transmission means realizes the player function that amplifies.Solve various mobile phones and amplified the player interface incompatibility problem, also accomplished the wireless docking concept lower than bluetooth technical costs, circuit of the present invention is simple, and cost is low, acoustical quality is good, and circuit can add that to invest audio amplifier, desk lamp, portable lighting, handicraft first-class.
Description of drawings
In order to be easy to explanation, the present invention is done to describe in detail by following specific embodiment and accompanying drawing.
Fig. 1 is structural representation of the present invention;
Fig. 2 is that silicon steel sheet inductive type magnetic field induction receives change-over circuit;
Fig. 3 is that the isolated type magnetic field induction of magnetic patch coil receives change-over circuit.
Embodiment
As shown in Figure 1, a kind of mobile phone of magnetic induction way player that amplifies comprises mobile phone 1, and is used for receiving the magnetic induction receiving converter 2 of mobile phone 1 loudspeaker sound magnetic, and for the audio-frequency power amplifier 3 that voice signal is amplified, and the loudspeaker 4 that link to each other with audio-frequency power amplifier 3 outputs.
As shown in Figure 2, silicon steel sheet inductive type magnetic field induction receives induced field L1 and the L2 that change-over circuit comprises that two silicon steel sheet inductance that are cascaded form, described L1 can also connect by single or multiple silicon steel sheet inductance with L2 silicon steel sheet inductance element, also include C1, C2, three block isolating devices of C3, described induced field L1 and L2 output are connected with resistance R 1, described block isolating device C1 output is in series with resistance R 4 and resistance R 5,4 of described block isolating device C1 and resistance R are parallel with resistance R 3, described resistance R 4 two ends are connected with triode Q1, described triode Q1 links to each other with block isolating device C3, and described block isolating device C3 output links to each other with audio-frequency power amplifier; When the mobile phone 1 of will sing is put in induction zone, will be sent in the inductance magnetic field of L1, L2 by the sound magnetic of 4 li on mobile phone loudspeaker.And finish magnetic by inductance and change electric work, deliver to triode Q1 by the C1 block isolating device and carry out the signal amplification, form the music signal, deliver to audio-frequency power amplifier 3 by block isolating device C3 again, again by loudspeaker 4 outputs.Resistance R 2, block isolating device C2 arrange in order to prevent radio frequency interference, can play inhibitory action to radio frequency interference.
As shown in Figure 3, the isolated type magnetic field induction of magnetic patch coil receives the induced field L3 that change-over circuit comprises that an isolated ferrite magnetic patch and coil form, described induced field L3 output is connected with resistance R 9, described resistance R 9 outputs are connected with block isolating device C5, described block isolating device output is connected with resistance R 6, described resistance R 6 outputs are connected with resistance R 7, described resistance R 6 inputs and output are connected with field effect transistor Q2, described field effect transistor Q2 is connected with block isolating device C4, and described have block isolating device C4 to link to each other with audio-frequency power amplifier; When the mobile phone 1 of will sing is put in induction zone, will be sent in the inductance magnetic field of induced field L3 by the sound magnetic in mobile phone 1 loudspeaker.And finish magnetic by isolated ferrite magnetic patch and coil and change electric work, deliver to field effect transistor Q2 by block isolating device C5 and carry out the signal amplification, form the music signal, deliver to audio-frequency power amplifier 3 by block isolating device C4 again, loudspeaker 4 outputs.Resistance R 8, block isolating device C6 arrange in order to prevent radio frequency interference, can play inhibitory action to radio frequency interference.
Beneficial effect of the present invention: the present invention can be tied on the various mobile phone sound sound amplification functions easily with traditional data wire ways of connecting or by the different sound load mode of Bluetooth technology.Utilize this feature of sound magnetic of mobile phone loudspeaker, transmit induced magnetism by middle magnetic strength receiving converter circuit, realize the magnetoelectricity conversion, be transferred to loudspeaker after amplifying by audio power then, its signal transport process is: sound magnetic → magnetic → electricity → sound, this transmission means realizes the player function that amplifies.Solve various mobile phones and amplified the player interface incompatibility problem, also accomplished the wireless docking concept lower than bluetooth technical costs, circuit of the present invention is simple, and cost is low, acoustical quality is good, and circuit can add that to invest audio amplifier, desk lamp, portable lighting, handicraft first-class.
The above only is the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any variation or replacement of expecting without creative work all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range that claims were limited.
Claims (3)
1. the mobile phone of the magnetic induction way player that amplifies, it is characterized in that: comprise mobile phone, and for the magnetic induction receiving converter that receives mobile phone loudspeaker sound magnetic, and for the audio-frequency power amplifier that voice signal is amplified, and the loudspeaker that link to each other with the audio-frequency power amplifier output, described magnetic induction receiving converter has two kinds of circuit, and first kind is that silicon steel sheet inductive type magnetic field induction receives change-over circuit, and second kind is that the isolated type magnetic field induction of magnetic patch coil receives change-over circuit;
Described silicon steel sheet inductive type magnetic field induction receives induced field L1 and the L2 that change-over circuit comprises that two silicon steel sheet inductance that are cascaded form, described L1 can also connect by single or multiple silicon steel sheet inductance with L2 silicon steel sheet inductance element, also include C1, C2, three block isolating devices of C3, described induced field L1 and L2 output are connected with resistance R 1, described block isolating device C1 output is in series with resistance R 4 and resistance R 5,4 of described block isolating device C1 and resistance R are parallel with resistance R 3, described resistance R 4 two ends are connected with triode Q1, described triode Q1 links to each other with block isolating device C3, and described block isolating device C3 output links to each other with audio-frequency power amplifier;
The isolated type magnetic field induction of described magnetic patch coil receives the induced field L3 that change-over circuit comprises that an isolated ferrite magnetic patch and coil form, described induced field L3 output is connected with resistance R 9, described resistance R 9 outputs are connected with block isolating device C5, described block isolating device output is connected with resistance R 6, described resistance R 6 outputs are connected with resistance R 7, described resistance R 6 inputs and output are connected with field effect transistor Q2, described field effect transistor Q2 is connected with block isolating device C4, and described have block isolating device C4 to link to each other with audio-frequency power amplifier.
2. the mobile phone of the magnetic induction way according to claim 1 player that amplifies, it is characterized in that: be parallel with resistance R 2 between described resistance R 1 and block isolating device C1, resistance R 2 one ends link to each other with block isolating device C2.
3. the mobile phone of the magnetic induction way according to claim 1 player that amplifies is characterized in that: be parallel with resistance R 8 between described block isolating device C5 and the resistance R 6, be parallel with block isolating device C6 between induced field L3 and resistance R 9 outputs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100717490A CN103188588A (en) | 2013-03-06 | 2013-03-06 | Mobile phone sound-amplifying player with magnetic induction way |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100717490A CN103188588A (en) | 2013-03-06 | 2013-03-06 | Mobile phone sound-amplifying player with magnetic induction way |
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| CN103188588A true CN103188588A (en) | 2013-07-03 |
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| CN2013100717490A Pending CN103188588A (en) | 2013-03-06 | 2013-03-06 | Mobile phone sound-amplifying player with magnetic induction way |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374090A (en) * | 2014-09-02 | 2016-03-02 | 冯林 | Lock and unlocking method based on mobile terminal |
| WO2020216040A1 (en) * | 2019-04-24 | 2020-10-29 | 维沃移动通信有限公司 | Terminal device |
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| US20120281843A1 (en) * | 2011-05-06 | 2012-11-08 | Oticon A/S | Receiver and method for retrieving an information signal from a magnetic induction signal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1062254A (en) * | 1990-06-28 | 1992-06-24 | 祖茂连 | High-voltage large-power transistor amplifier |
| CN2096168U (en) * | 1991-01-24 | 1992-02-12 | 南京大学 | Radio receiver for tv sound |
| CN2529467Y (en) * | 2002-03-11 | 2003-01-01 | 骏安科技有限公司 | Handfree receiver with radio earphone |
| CN2686267Y (en) * | 2004-01-19 | 2005-03-16 | 冯丽燕 | Radio microphone language learning machine |
| US20100081379A1 (en) * | 2008-08-20 | 2010-04-01 | Intel Corporation | Wirelessly powered speaker |
| CN201303419Y (en) * | 2008-12-04 | 2009-09-02 | 嘉友电子股份有限公司 | Wireless loud-speaker |
| CN201449648U (en) * | 2009-07-15 | 2010-05-05 | 江苏中讯数码电子有限公司 | Automatic doorbell contact wireless gate magnet sensor |
| CN201550250U (en) * | 2009-12-01 | 2010-08-11 | 杨辉隆 | Microphone |
| US20120281843A1 (en) * | 2011-05-06 | 2012-11-08 | Oticon A/S | Receiver and method for retrieving an information signal from a magnetic induction signal |
| CN202059558U (en) * | 2011-05-24 | 2011-11-30 | 孙维宇 | Electromagnetic pickup device |
| CN202261764U (en) * | 2011-09-20 | 2012-05-30 | 深圳市欧昂电子厂 | Electromagnetic induction circuit and magnetic suspension sound box |
| CN102780956A (en) * | 2012-06-15 | 2012-11-14 | 李国材 | Non-plug-in type electromagnetic induction voice-frequency amplifying sound box and audio playing device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105374090A (en) * | 2014-09-02 | 2016-03-02 | 冯林 | Lock and unlocking method based on mobile terminal |
| WO2020216040A1 (en) * | 2019-04-24 | 2020-10-29 | 维沃移动通信有限公司 | Terminal device |
| US11838722B2 (en) | 2019-04-24 | 2023-12-05 | Vivo Mobile Communication Co., Ltd. | Terminal device |
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Application publication date: 20130703 |
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