ONE CHIP DEVICE FOR DRIVING ULTRASONIC SENSOR

A ultrasonic sensor driving unit is provided to support multiple modes, adjust the driving frequency band of an ultrasonic sensor by using a resistor and a capacitor and actively adjust amplification gain to improve reflected wave receiving sensitivity. An ultrasonic sensor driving unit(10) includes...

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Bibliographische Detailangaben
Hauptverfasser:	MOK, IM SOO, JUNG, DONG WON, KIM, BYUNG GEUK, YOO, KI SUNG, LIM, ZHONG SOO
Format:	Patent
Sprache:	eng
Schlagworte:	FOR PERFORMING MECHANICAL WORK IN GENERAL GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES MEASURING METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY PERFORMING OPERATIONS PHYSICS TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	A ultrasonic sensor driving unit is provided to support multiple modes, adjust the driving frequency band of an ultrasonic sensor by using a resistor and a capacitor and actively adjust amplification gain to improve reflected wave receiving sensitivity. An ultrasonic sensor driving unit(10) includes an oscillator(110), a driver(120), an amplification unit(210), and a delay detector(220). The oscillator oscillates an ultrasonic signal in an oscillation mode. The driver drives the oscillated signal as a signal for driving an ultrasonic sensor and outputs the signal to an output terminal(T). The amplification unit amplifies a reflected wave signal received through an input terminal. The delay detector detects the time during which the reflected wave signal is received after the signal is oscillated.