Invention Grant
- Patent Title: Control circuit of piezoelectric driving device, piezoelectric driving device, ultrasonic motor, robot, hand, and pump
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Application No.: US15463409Application Date: 2017-03-20
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Publication No.: US10153418B2Publication Date: 2018-12-11
- Inventor: Tsutomu Miyamoto
- Applicant: Seiko Epson Corporation
- Applicant Address: JP
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: JP2016-056604 20160322
- Main IPC: H01L41/04
- IPC: H01L41/04 ; A61B34/30 ; B06B1/06 ; H01L41/09 ; A61M5/142 ; H02N2/14
Abstract:
A control circuit of a piezoelectric driving device includes: a signal generation unit that inputs a state inspection signal to a plurality of piezoelectric elements connected to each other in parallel; and a state detection unit that detects a state of the plurality of piezoelectric elements based on a state detection signal generated from the plurality of piezoelectric elements in accordance with the state inspection signal.
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Information query
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