Title:
PIEZOELECTRIC MEMS LOUDSPEAKER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/283784
Kind Code:
A1
Abstract:
A piezoelectric MEMS loudspeaker system (10), comprising: at least one piezoelectric MEMS loudspeaker (1); and at least one transformer (2), the transformer (2) being used for receiving an audio signal input and for driving the piezoelectric MEMS loudspeaker (1). In the piezoelectric MEMS loudspeaker system (10), the piezoelectric MEMS loudspeaker (1) is driven on the basis of the transformer (2). Since the transformer (2) is a passive device, compared with an active solution of a traditional power amplifier, the piezoelectric MEMS loudspeaker system has low power consumption and a simple structure, and is applicable to an integrated miniaturized device.
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| JPS5358220 | ELECTRO-ACOUSTIC TRANSDUCER |
Inventors:
ZHANG MENGLUN (CN)
Application Number:
PCT/CN2021/105840
Publication Date:
January 19, 2023
Filing Date:
July 12, 2021
Export Citation:
Assignee:
UNIV TIANJIN (CN)
International Classes:
H04R17/00
Domestic Patent References:
| WO1999005885A1 | 1999-02-04 |
Foreign References:
| JPS585100B2 | 1983-01-29 | |||
| US6345102B1 | 2002-02-05 | |||
| EP0883326A2 | 1998-12-09 | |||
| US5901231A | 1999-05-04 | |||
| CN207010973U | 2018-02-13 | |||
| CN207427469U | 2018-05-29 | |||
| CN201042075Y | 2008-03-26 | |||
| CN203482389U | 2014-03-12 | |||
| US20100086151A1 | 2010-04-08 |
Attorney, Agent or Firm:
CHINA SMART INTELLECTUAL PROPERTY LTD. (CN)
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