发明名称 |
Electret transducer with solar power and amplifier circuitry |
摘要 |
The present invention provides an electret transducer with solar power. The provided electrets transducer includes a solar power supply device, an amplifier circuit having a first input terminal coupled to the solar power supply device and a second input terminal coupled to an audio signal input terminal, and an electret loudspeaker coupled to an output terminal of the amplifier circuit. The amplifier circuit receives a first voltage level via the first input terminal and boosts the first voltage level to a second voltage level, and receives a first audio signal via the second input terminal and amplifies the first audio signal to a second audio signal. The electret loudspeaker coupled to the output terminal of the amplifier circuit receives the second audio signal and outputs a sound corresponding to the second audio signal. |
申请公布号 |
US8385570(B2) |
申请公布日期 |
2013.02.26 |
申请号 |
US201213553413 |
申请日期 |
2012.07.19 |
申请人 |
TAIWAN ELECTRETS ELECTRONICS CO., INC.;CHIANG DAR-MING;LIANG SHEN-LONG;LIN SHU-RU |
发明人 |
CHIANG DAR-MING;LIANG SHEN-LONG;LIN SHU-RU |
分类号 |
H04R25/00 |
主分类号 |
H04R25/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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