FIELD: engineering of electro-acoustic converters, in particular, electret capacitor microphones, possible use on invention in intruder alarm systems, mobile communication devices, hearing aids and listening devices.
SUBSTANCE: electret capacitor microphone system includes electret capacitor microphone, loading resistor, impulse modulator and device for selecting and storage for conversion of impulse signal to continuous signal, while the output of the microphone is connected to the output of impulse modulator through loading resistor, one of selection and storage device inputs is connected to microphone output, and another input is connected to modulator output, and output of device for selection and storage is the output of the microphone system.
EFFECT: reduced current consumption of electret capacitor microphone system due to ensured operation of the system in impulse mode.
5 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR FORMING CHARACTERISTICS OF CAPACITOR MICROPHONE AND DEVICE FOR REALIZATION OF SAID METHOD | 2003 |
|
RU2267236C2 |
| POWER AMPLIFIER | 0 |
|
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| SOURCE FOLLOWER | 1992 |
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| SHF POWER PULSE AMPLIFIER | 2007 |
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RU2340083C1 |
