Ultrasonic diagnostic apparatus
AssigneeGE Medical Systems Global Technology Company, LLC
InventorShinichi Amemiya
Life of this patent
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Abstract
For the purpose of reducing the size and power consumption of a power source in an ultrasonic diagnostic apparatus, charge pump circuits are connected to a transmitter power source. A regulator in the transmitter power source drives the charge pump circuit to generate a positive bias voltage +HV2 higher than a positive voltage +HV1 generated by the transmitter power source. The regulator in the transmitter power source also drives the charge pump circuit to generate a negative bias voltage −HV2 lower than a negative voltage −HV1 generated by the transmitter power source.
Claims20
An ultrasonic diagnostic apparatus for transmitting ultrasonic signals from ultrasonic transducers toward a subject to be examined, and receiving reflected waves of said ultrasonic signals for display, said ultrasonic diagnostic apparatus comprising:
- an analog switch for switching ultrasonic transducers for transmission of said ultrasonic signals and reception of said reflected waves;
- a transmitter power source comprising a regulator circuit coupled to a power source for supplying a high voltage to a transmitter circuit for causing said transmitter circuit to drive said ultrasonic transducers, said regulator circuit comprising a capacitor, a diode, a resistor, a first inductor, and a second inductor, wherein the first and second inductors are configured such that the first inductor induces a voltage in the second inductor;
- and a bias power source generating circuit for generating a bias power source for said analog switch from said transmitter power source.
Dependencies are inferred from the claim text.