US Patent 9931523 RF power controller for ultrasound therapy system
Patent 9931523 was granted and assigned to Profound Medical Inc. on April, 2018 by the United States Patent and Trademark Office.
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An apparatus for driving and controlling ultrasonic elements includes a computer-based host unit that determines driving characteristics with which to drive the ultrasonic elements; a microprocessor-based controller that receives an output from the host and provides signals representing a frequency and/or an amplitude characteristic; a frequency control circuit receiving the frequency characteristic signal; an amplitude control circuit receiving the amplitude characteristic signal; an RF amplifier acting on an output from the frequency and/or the amplitude control circuits to provide an amplified output signal corresponding to the frequency and/or amplitude characteristic; a coupling circuit that couples the amplified output signal to the ultrasonic elements and provides a forward output signal to a first RF detector circuit and a reverse output signal to a second RF detector circuit; and an analog-to-digital converter that receives an output of the RF detector circuits and provides a corresponding converted output to the controller.
US Patent 09931523 RF power controller for ultrasound therapy system US Patent 9931523 RF power controller for ultrasound therapy system
US Patent 09931523 RF power controller for ultrasound therapy system
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