Title:
超音波探触子ユニットおよび超音波診断装置
Document Type and Number:
Japanese Patent JP6780485
Kind Code:
B2
Abstract:
The driving circuit includes a variable-output switch-mode power supply; a power amplifier into which an output voltage of the variable-output switch-mode power supply is input, and which outputs a driving voltage to an actuator on the basis of the output voltage; and a comparator that compares a first target voltage based on the driving voltage of the actuator with a second target voltage based on the output voltage of the variable-output switch-mode power supply, in which when an absolute value of the second target voltage is smaller than an absolute value of the first target voltage as a result of the comparison in the comparator, the control circuit performs switching control of the variable-output switch-mode power supply so as to increase the absolute value of the second target voltage to the absolute value of the first target voltage or larger.
Inventors:
Takehiko Suginouchi
Hideo Hongo
Hideo Hongo
Application Number:
JP2016241491A
Publication Date:
November 04, 2020
Filing Date:
December 13, 2016
Export Citation:
Assignee:
Konica Minolta Co., Ltd.
International Classes:
A61B8/00
Domestic Patent References:
| JP2004016750A | ||||
| JP5115482A | ||||
| JP2011217842A | ||||
| JP5130992A | ||||
| JP2016202387A | ||||
| JP5070017U |
Foreign References:
| WO1997013318A1 | ||||
| WO2012066659A1 | ||||
| US20130229235 |
Attorney, Agent or Firm:
Washeda International Patent Office
Takashi Kiso
Takashi Kiso