Title:
電源回路、電気光学装置および電子機器
Document Type and Number:
Japanese Patent JP4352937
Kind Code:
B2
Abstract:
A power-supply circuit includes a capacitor, which is connected to a terminal at a first end while being grounded at the second end, for supplying a hold voltage between both ends thereof to a load; a capacitor connected, via a diode, to the terminal at a first end; an operational amplifier for raising a voltage at the second end of the capacitor, in response to a reduction in the hold voltage, such that the hold voltage becomes equal to a target voltage; and a transistor.
Inventors:
Kimura Soshi
Satoshi Yatabe
Kenichi Tajiri
Satoshi Yatabe
Kenichi Tajiri
Application Number:
JP2004059301A
Publication Date:
October 28, 2009
Filing Date:
March 03, 2004
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
G02F1/133; H02M3/155; G09G3/20; G09G3/30; G09G3/36; H01L51/50; H02H3/20; H05B33/14
Domestic Patent References:
| JP6351229A |
Attorney, Agent or Firm:
Masahiko Ueyanagi
Osamu Suzawa
Osamu Suzawa