公开(公告)号：US20150236236A1

公开(公告)日：2015-08-20

申请号：US14702553

申请日：2015-05-01

Applicant: Cornell University

Inventor： George K. LEWIS ,  William OLBRICHT

IPC: H01L41/04 ,  A61N7/00

CPC classification number: A61N7/00 ,  A61N7/02 ,  B06B1/0261 ,  B06B2201/40 ,  B06B2201/76

Abstract: In one embodiment, there is provided in an ultrasound wave generating apparatus a low output impedance transistor based driver circuit that has the ability to apply a drive signal at a frequency corresponding to an ultrasound transducer's resonant frequency. The low output impedance of the driver circuit allows for a substantial portion of the energy to be delivered to the ultrasound transducer and converted to ultrasound energy. The power transfer efficiency of the presented circuit allows ultrasound drivers to be powered by portable battery packs, while still delivering high ultrasound acoustic power. The ultrasound driver can provide energy in sufficient amounts making it suitable for a range of ultrasound driving applications including but not limited to therapeutic low and high power clinical systems, high intensity focused ultrasound HIFU, acoustical welding, industrial inspection, and other various forms of low-to-high power acoustic devices.

Abstract translation: 在一个实施例中，在超声波发生装置中设置有基于低输出阻抗晶体管的驱动器电路，其具有以对应于超声换能器的共振频率的频率施加驱动信号的能力。 驱动器电路的低输出阻抗允许将大部分能量输送到超声换能器并转换成超声能量。 所提出的电路的功率传输效率允许超声波驱动器由便携式电池组供电，同时仍然提供高超声波声功率。 超声波驱动器可以提供足够的能量，使其适用于一系列超声波驱动应用，包括但不限于治疗性低功率和高功率临床系统，高强度聚焦超声HIFU，声学焊接，工业检查和其他各种形式的低 高功率声学设备。