Title:
METHOD OF PREVENTING VOLTAGE DELAY OF BACKUP BATTERY IN OPTICAL ENCODER, AND OPTICAL ENCODER
Document Type and Number:
Japanese Patent JP2004325125
Kind Code:
A
Abstract:
To eliminate a backup failure, when a main power supply is turned off by consuming a backup battery also, when the main power supply is turned on and eliminating voltage delays.
In this method for preventing voltage delays of the battery for backup in this optical encoder and the optical encoder, a switching part (4) is connected between the main power supply (2) and the battery (6) for backup, and power is supplied from the battery (6) for backup also, when the main power supply (2) is on to prevent voltage delays.
Inventors:
SHIMODAIRA MASAKI
Application Number:
JP2003117060A
Publication Date:
November 18, 2004
Filing Date:
April 22, 2003
Export Citation:
Assignee:
TAMAGAWA SEIKI CO LTD
International Classes:
G01D5/36; (IPC1-7): G01D5/36
Attorney, Agent or Firm:
Michiteru Soga
Michiharu Soga
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Nakamura Rei
Michiharu Soga
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Nakamura Rei