Spindle positioning device
US-9190946-B2 · Nov 17, 2015 · US
Movement control apparatus, movement control method, and movement control circuit
US8994298B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8994298-B2 |
| Application number | US-201213642706-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 24, 2012 |
| Priority date | Feb 24, 2011 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
Official abstract text for this publication.
A movement control apparatus includes: an actuator that causes a driven body connected to a driving coil to perform reciprocating movement; a signal generation unit that generates a velocity command signal which indicates a target velocity of the driven body; a driving unit that supplies electric current corresponding to a driving signal to the driving coil; a voltage detection unit that detects induced voltage generated in the driving coil, and outputs a voltage signal corresponding to the induced voltage; a signal correction unit that corrects, based on the driving signal and the voltage signal, the voltage signal to adjust a shift of a resistance value from a reference resistance value of the driving coil, thereby generating a velocity signal; and a control unit that generates the driving signal based on the velocity command signal and the velocity signal, and outputs the driving signal to the driving unit.
First claim
Opening claim text (preview).
The invention claimed is: 1. A movement control apparatus, comprising: an actuator that includes a permanent magnet and a driving coil facing the permanent magnet via a predetermined air gap, and causes a driven body connected to the driving coil to perform reciprocating movement; a signal generation unit that generates a velocity command signal which indicates a target velocity of the driven body; a driving unit that supplies electric current corresponding to an inputted driv…
Assignees
Inventors
Classifications
- H02P23/005Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
- H02P23/18Primary
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8994298B2 cover?
- A movement control apparatus includes: an actuator that causes a driven body connected to a driving coil to perform reciprocating movement; a signal generation unit that generates a velocity command signal which indicates a target velocity of the driven body; a driving unit that supplies electric current corresponding to a driving signal to the driving coil; a voltage detection unit that detect…
- Who is the assignee on this patent?
- Inaji Toshio, Shimamoto Takeshi, Ezawa Kozo, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H02P23/005. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 31 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).