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Ultrasonic transducer drive circuit and ultrasonic image display apparatus
专利权人:
Shinichi Amemiya
发明人:
Shinichi Amemiya
申请号:
US13472134
公开号:
US09182377B2
申请日:
2012.05.15
申请国别(地区):
US
年份:
2015
代理人:
摘要:
An ultrasonic transducer drive circuit for driving an ultrasonic transducer by outputting pulses including a positive pulse and a negative pulse to an output line is provided. The ultrasonic transducer includes a positive voltage supply circuit, a negative voltage supply circuit, a current-inflow-type ground clamp circuit configured to operate when voltage in the output line is positive voltage, and a current-outflow-type ground clamp circuit configured to operate when voltage in the output line is negative voltage, wherein the current-inflow-type ground clamp circuit is configured to enter an operation state at a time of generating the negative pulse in a state where the voltage in the output line is positive voltage, and the current-outflow-type ground clamp circuit is configured to enter an operation state at a time of generating the positive pulse in a state where the voltage in the output line is negative voltage.
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