Piezoelectric actuator, robot hand, and robot
US-9318980-B2 · Apr 19, 2016 · US
Piezoelectric motor, robot hand, robot, finger assist apparatus, electronic component conveying apparatus, electronic component inspecting apparatus, liquid feeding pump, printing apparatus, electronic timepiece, and projection apparatus
US2015114164A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2015114164-A1 |
| Application number | US-201414519744-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 21, 2014 |
| Priority date | Oct 30, 2013 |
| Publication date | Apr 30, 2015 |
| Grant date | — |
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- Title
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Abstract
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A first driving signal is supplied to a first electrode of a vibrating body. A second driving signal is supplied to a second electrode of the vibrating body. A common driving signal is supplied to a common electrode of the vibrating body. A phase of the first driving signal is set changeable with respect to a phase of the common driving signal. A phase of the second driving signal is set changeable with respect to the phase of the common driving signal. Then, it is possible to switch a driving direction of a piezoelectric motor according to which phase of the first driving signal or the second driving signal is varied from the phase of the common driving signal. If the phase is simply changed, a switch is unnecessary. It is possible to reduce a driving circuit in size.
First claim
Opening claim text (preview).
What is claimed is: 1 . A piezoelectric motor comprising: a vibrating body including a piezoelectric material; a common electrode arranged on one surface of the vibrating body; a first electrode and a second electrode arranged on a surface different from the surface on which the common electrode is arranged; and a driving-signal supplying section configured to supply a common driving signal to the common electrode, supply a first driving signal to the first electrode, and…
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Cross-Sectional Technologies · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US2015114164A1 cover?
- A first driving signal is supplied to a first electrode of a vibrating body. A second driving signal is supplied to a second electrode of the vibrating body. A common driving signal is supplied to a common electrode of the vibrating body. A phase of the first driving signal is set changeable with respect to a phase of the common driving signal. A phase of the second driving signal is set change…
- Who is the assignee on this patent?
- Seiko Epson Corp
- What technology area does this patent fall under?
- Primary CPC classification H02N2/008. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Apr 30 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).