ELECTRET TRANSDUCER WITH SOLAR POWER

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 ter...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHIANG DAR-MING, LIANG SHEN-LONG, LIN SHU-RU
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung: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.