FIELD: medicine.
SUBSTANCE: excitation device, in particular an ultrasonic transducer with a plurality of transducer elements, comprises input terminals for excitation device connection to a power source, a plurality of output terminals for excitation device connection to a corresponding one of a plurality of separate load capacitors, one first controllable switch connected to the first input terminal, and a plurality of drive elements, each having a second controllable switch and a resistor connected in series to each other, each of the driving elements being connected in series to one first controllable switch and with the second input terminal, and each of the output terminals is connected to a corresponding one of the drive elements to supply the respective capacitive load element from a plurality of separate capacitive load elements. At that, one first controllable switch is provided to simultaneously charge a plurality of separate capacitive load elements, and the second controlled switches are provided to individually discharge a plurality of separate capacitive load elements, or one first controllable switch is provided to simultaneously discharge a plurality of separate capacitive load elements, and the second controllable switches are provided to individually charge of a plurality of individual capacitive load elements. The method for ultrasonic transducer excitation is implemented by means of an excitation device. The ultrasonic imaging device comprises an ultrasonic transducer and at least one excitation device to individually drive an ultrasonic transducer element.
EFFECT: application of inventions allows to reduce the total number of integrated transistor elements and thereby reduce the size of the excitation device.
12 cl, 4 dwg
