Title:
BOOSTER CIRCUIT
Document Type and Number:
Japanese Patent JP2783044
Kind Code:
B2
Abstract:
PURPOSE: To produce intermediate voltage being one to two times as large as source voltage without increasing current being dissipated, in a switched capacitor type booster circuit.
CONSTITUTION: The title booster circuit is composed of a smoothing capacitor 1, a charge supplying capacitor 2, first to fourth switches 3-6, a voltage regulation device 7, a power terminal 8, and an output terminal 9. Since the charge supplying capacitor 2 is charged to the source voltage minus the voltage drop of the voltage regulation device 7, the output terminal 9 outputs twice the source voltage minus the voltage drop of the voltage regulation device 7.
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| JPS54149599 | LIQUID CRYSTAL DISPLAY UNIT |
Inventors:
TAMAGAWA AKIO
Application Number:
JP6441692A
Publication Date:
August 06, 1998
Filing Date:
March 23, 1992
Export Citation:
Assignee:
NIPPON DENKI KK
International Classes:
G09G3/18; H02J1/00; H02M3/07; (IPC1-7): H02M3/07
Domestic Patent References:
| JP57193970A | ||||
| JP4304161A | ||||
| JP5148609U |
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)
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