There is set forth herein an ultrasound signal generating circuit having a control circuit which can include a control circuit having a control signal generating circuit a low power signal driver circuit for providing a low power ultrasound signal a high power signal driver circuit for providing a high power ultrasound signal and a radiofrequency switch configured to transmit the low power ultrasound signal and the high power ultrasound signal to the ultrasound probe, wherein the radiofrequency switch isolates the low power signal driver circuit from the high power signal driver circuit wherein the ultrasound signal generating circuit is configured so that the radiofrequency switch transmits an output low power ultrasound signal output by the low power signal driver circuit or an output high power ultrasound signal output by the high power signal driver circuit based on an output of the control signal generating circuit.
