Title:
POWER SOURCE CIRCUIT
Document Type and Number:
Japanese Patent JP2005196650
Kind Code:
A
Abstract:
To provide a power source circuit capable of efficiently adjusting electric current flowing in each of error amplifiers with respect to a plurality of voltage regulators.
The electric current flowing in the error amplifiers AMP1 and AMP2 of two voltage regulators can be simultaneously adjusted by simultaneously adjusting the electric currents supplied by a NMOS transistors Me1 and Me2 as current sources by selectively cutting off a trimming element of a driving current setting circuit 3.
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Inventors:
UEDA TADAYOSHI
Application Number:
JP2004004223A
Publication Date:
July 21, 2005
Filing Date:
January 09, 2004
Export Citation:
Assignee:
RICOH KK
International Classes:
G05F1/56; (IPC1-7): G05F1/56
Attorney, Agent or Firm:
Osamu Kawamiya
Masahiro Ishino
Masahiro Ishino