TWI264960B - Electrostatic electro-acoustic transducer - Google Patents
Electrostatic electro-acoustic transducerInfo
- Publication number
- TWI264960B TWI264960B TW93139640A TW93139640A TWI264960B TW I264960 B TWI264960 B TW I264960B TW 93139640 A TW93139640 A TW 93139640A TW 93139640 A TW93139640 A TW 93139640A TW I264960 B TWI264960 B TW I264960B
- Authority
- TW
- Taiwan
- Prior art keywords
- acoustic transducer
- meso
- nano
- micro
- composite material
- Prior art date
Links
Landscapes
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Abstract
An electrostatic electro-acoustic transducer and a method thereof are provided. The present electrostatic electro-acoustic transducer includes two electrode plates provided with holes and a conductive vibrating film disposed there-between. Two nano-meso-micro-porous electret composite material films are respectively formed on an inner surface of each of the electrode plates. The two nano-meso-micro-porous electret composite material films are respectively provided with a permanent negative voltage and a permanent positive voltage. The conductive vibrating film is applied by an audio-signal voltage. Therefore, it will induce a push-pull electrostatic force to make the film vibrate, resulting in compressing air which generates audio radiation. By the permanent negative and positive voltages of the nano-meso-micro-porous electret composite material films, the present electrostatic electro-acoustic transducer merely requires a single-channeled alternating voltage. The audio-signal voltage can be reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW93139640A TWI264960B (en) | 2004-12-20 | 2004-12-20 | Electrostatic electro-acoustic transducer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW93139640A TWI264960B (en) | 2004-12-20 | 2004-12-20 | Electrostatic electro-acoustic transducer |
Publications (2)
Publication Number | Publication Date |
---|---|
TW200623931A TW200623931A (en) | 2006-07-01 |
TWI264960B true TWI264960B (en) | 2006-10-21 |
Family
ID=37969535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW93139640A TWI264960B (en) | 2004-12-20 | 2004-12-20 | Electrostatic electro-acoustic transducer |
Country Status (1)
Country | Link |
---|---|
TW (1) | TWI264960B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8126189B2 (en) | 2009-02-13 | 2012-02-28 | Industrial Technology Research Institute | Multi-directional flat speaker device |
US8139794B2 (en) | 2008-08-01 | 2012-03-20 | Industrial Technology Research Institute | Speaker devices |
US8503702B2 (en) | 2009-10-22 | 2013-08-06 | Industrial Technology Research Institute | Electret diaphragm and speaker using the same |
US8804987B2 (en) | 2009-10-16 | 2014-08-12 | Htc Corporation | Hat with sound playing function |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8559660B2 (en) | 2007-07-12 | 2013-10-15 | Industrial Technology Research Institute | Electrostatic electroacoustic transducers |
CN105554661B (en) * | 2016-02-03 | 2018-10-12 | 苏州佳世达电通有限公司 | Electro-acoustic conversion device |
CN107040853B (en) * | 2017-04-17 | 2023-11-21 | 昆山海菲曼科技集团股份有限公司 | Speaker and earphone with same |
CN112910303B (en) * | 2021-01-22 | 2022-07-12 | 南京邮电大学 | Acoustic friction nano generator based on quarter-wave tube |
CN115412828A (en) * | 2022-08-11 | 2022-11-29 | 上海虹曙虹曙虹电子科技有限公司 | Electrostatic loudspeaker design method |
-
2004
- 2004-12-20 TW TW93139640A patent/TWI264960B/en active
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8139794B2 (en) | 2008-08-01 | 2012-03-20 | Industrial Technology Research Institute | Speaker devices |
US8126189B2 (en) | 2009-02-13 | 2012-02-28 | Industrial Technology Research Institute | Multi-directional flat speaker device |
US8804987B2 (en) | 2009-10-16 | 2014-08-12 | Htc Corporation | Hat with sound playing function |
TWI458444B (en) * | 2009-10-16 | 2014-11-01 | Htc Corp | Hat with sound playing function |
US8503702B2 (en) | 2009-10-22 | 2013-08-06 | Industrial Technology Research Institute | Electret diaphragm and speaker using the same |
Also Published As
Publication number | Publication date |
---|---|
TW200623931A (en) | 2006-07-01 |
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