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US 2015/0088154 A1Published application
Ultrasonic generator systems and methods
AssigneeCybersonics, Inc.
InventorsJeffrey J. Vaitekunas, Emery S. Rose
Life of this patent
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Abstract
Embodiments shown and described herein relate, in general, to systems and methods for driving ultrasonic transducers and, more particularly, to systems and methods for controlling the output of high power ultrasonic transducers and improving performance of ultrasonic systems.
Claims20
A method for controlling an ultrasonic transducer comprising:
- providing a generator;
- providing an ultrasonic transducer having a first stack and a second stack, wherein the first stack is configured to be reverse phase to the second stack such that the first stack is in compression when the second stack is in tension;
- transmitting a first ultrasonic signal to the first stack with the generator, the first ultrasonic signal having a first frequency;
- and
- transmitting a second ultrasonic signal to the second stack with the generator, the second ultrasonic signal having a second frequency, wherein the first frequency is different from the second frequency.
2 more elements
A method for controlling an ultrasonic transducer comprising:
- providing a generator;
- providing an ultrasonic transducer having a first stack and a second stack;
- providing a first ultrasonic signal having a first frequency;
- providing a second ultrasonic signal having a second frequency, wherein the second frequency is different form the first frequency;
- summing the first ultrasonic signal and the second ultrasonic signal to create a summed signal;
- transmitting the summed signal to the first stack with the generator;
- providing a third ultrasonic signal, wherein the third ultrasonic signal is inverted relative to the first ultrasonic signal;
- transmitting the third ultrasonic signal to the second stack.
5 more elements
A method for controlling an ultrasonic transducer comprising:
- providing an ultrasonic transducer having a first piezoelectric stack and a second piezoelectric stack;
- providing a generator, wherein the generator comprises a transformer having a first winding and a second winding, the first winding being wound in a direction opposite the second winding, wherein the first winding is configured to provide electrical energy to the first piezoelectric stack and the second winding is configured to provide energy to the second piezoelectric stack such that the first piezoelectric stack is reverse phase to the second piezoelectric stack, the first piezoelectric stack is in compression when the second piezoelectric stack is in tension, and the first piezoelectric stack is in tension when the second piezoelectric stack is in compression;
- providing a first ultrasonic signal having a first frequency;
- providing a second ultrasonic signal having a second frequency, wherein the second frequency is different form the first frequency;
- providing a summer;
- summing the first ultrasonic signal and the second ultrasonic signal with the summer to create a summed signal;
- transmitting the summed signal to a first amplifier;
- transmitting the summed signal to the first piezoelectric stack with the generator;
- providing an inverter configured to generate a third ultrasonic signal, wherein the third ultrasonic signal is inverted relative to the first ultrasonic signal;
- transmitting the third ultrasonic signal to a second amplifier;
- and
- transmitting the third ultrasonic signal to the second piezoelectric stack.
9 more elements
Dependencies are inferred from the claim text.