Abstract: 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.
Type:
Grant
Filed:
July 19, 2012
Date of Patent:
February 26, 2013
Assignee:
Taiwan Electrets Electronics Co., Inc.
Inventors:
Dar-Ming Chiang, Shen-Long Liang, Shu-Ru Lin
Abstract: 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.
Type:
Application
Filed:
July 19, 2012
Publication date:
November 8, 2012
Applicant:
TAIWAN ELECTRETS ELECTRONICS CO., INC.
Inventors:
Dar-Ming Chiang, Shen-Long Liang, Shu-Ru Lin
Abstract: 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.
Type:
Grant
Filed:
June 4, 2010
Date of Patent:
October 30, 2012
Assignee:
Taiwan Electrets Electronics Co., Inc.
Inventors:
Dar-Ming Chiang, Shen-Long Liang, Shu-Ru Lin