FIELD: radio engineering, communication.
SUBSTANCE: invention relates to communication systems employing infrasound, sound or ultrasound acoustic waves, and can be used in equipment for transmitting information through residential and industrial building enclosures. The microcontroller-based ultrasonic generator for information transmission systems includes a microcontroller and an ultrasonic wave emitter. The first output of a rectangular pulse generator embedded in the microcontroller is connected to the first input of the ultrasonic wave emitter. The second output of the rectangular pulse generator embedded in the microcontroller is connected to the second input of the ultrasonic wave emitter. The rectangular pulse generator embedded in the microcontroller is controlled from a pulse-width modulator embedded in the microcontroller. Output signals of the rectangular pulse generator are in anti-phase.
EFFECT: simple circuit and low power consumption.
1 dwg
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