DRIVE CONTROLLING DEVICE, ELECTRONIC APPARATUS, DRIVE CONTROLLING METHOD FOR ELECTRONIC APPARATUS, DRIVE CONTROLLING PROGRAM FOR ELECTRONIC APPARATUS, RECORDING MEDIUM

Title:

DRIVE CONTROLLING DEVICE, ELECTRONIC APPARATUS, DRIVE CONTROLLING METHOD FOR ELECTRONIC APPARATUS, DRIVE CONTROLLING PROGRAM FOR ELECTRONIC APPARATUS, RECORDING MEDIUM

Document Type and Number:

WIPO Patent Application WO/2005/083873

Kind Code:

A1

Abstract:

An electronic apparatus (1) provided with a battery (200) and a piezoelectric actuator (A), wherein a power supply voltage before drive starting is held by a sample hold circuit (102), and a reference voltage is set by a reference voltage generating circuit (103) based on this power supply voltage; and a control circuit (106) stops the drive when a power supply voltage is below a drive stop voltage in comparison with a second comparison circuit (105) and resumes the drive of the piezoelectric actuator (A) when a power supply voltage is above a reference voltage in comparison with a first comparison circuit (104). Accordingly, an intermittent drive in conformity with a battery voltage condition can facilitate the downsizing of the apparatus using a small power supply and sufficiently shorten a drive time.

Inventors:

KAWAGUCHI TAKASHI
KITAHARA JOJI
OKEYA MAKOTO

Application Number:

PCT/JP2005/003181

Publication Date:

September 09, 2005

Filing Date:

February 25, 2005

Export Citation:

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Assignee:

SEIKO EPSON CORP (JP)

International Classes:

G04C3/00; G04C3/12; G04C10/00; G05F3/04; H01L41/04; H02N2/00; H01L41/09; (IPC1-7): H02N2/00; G04C3/00; G04C3/12

Foreign References:

JPH06237582A

1994-08-23

Other References: