Operation Amplifier

Saito Tetsuya; Bram Nauta

Operation Amplifier

Saito Tetsuya (Inventor), Bram Nauta (Inventor)

Research output: Patent

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Abstract

PROBLEM TO BE SOLVED: To provide an operation amplifier which improves power source voltage removal ratios while assuring phase compensation characteristics, and therefore can be realized with a small-scale circuit and low power consumption. SOLUTION: The operation amplifier comprises: a differential amplifier circuit 1; an output amplifier circuit 2 connected in series to the poststage of the differential amplifier circuit 1; a phase compensation circuit 3 for performing phase compensation of input/output characteristics; and a current supply circuit 5 for supplying an alternating current to this phase compensation circuit 3. Impedance of the current supply circuit 5 is equal to impedance of the phase compensation circuit 3. The phase compensation circuit 3 has a capacitor Cc1 and a resistor Rc1 connected in series. The current supply circuit 5 has a capacitor Cc2 and a resistor Rc2 connected in series. ;COPYRIGHT: (C)2009,JPO&INPIT

Original language	English
Patent number	JP4838760 B2
Publication status	Published - 14 Dec 2011

Keywords

EWI-26063
IR-102614

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JP4838760B2Final published version, 49.7 KB

http://worldwide.espacenet.com/publicationDetails/biblio?CC=JP&NR=4838760B2&KC=B2&FT=D&ND=1&date=20111214&DB=EPODOC&locale=en_EP

1 Patent

Operation amplifier
Tetsuya, S. (Inventor) & Nauta, B. (Inventor), 18 Dec 2008, Patent No. JP2008306562 (A), Priority No. JP20070152878 20070608
Research output: Patent

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title = "Operation Amplifier",

abstract = "PROBLEM TO BE SOLVED: To provide an operation amplifier which improves power source voltage removal ratios while assuring phase compensation characteristics, and therefore can be realized with a small-scale circuit and low power consumption. SOLUTION: The operation amplifier comprises: a differential amplifier circuit 1; an output amplifier circuit 2 connected in series to the poststage of the differential amplifier circuit 1; a phase compensation circuit 3 for performing phase compensation of input/output characteristics; and a current supply circuit 5 for supplying an alternating current to this phase compensation circuit 3. Impedance of the current supply circuit 5 is equal to impedance of the phase compensation circuit 3. The phase compensation circuit 3 has a capacitor Cc1 and a resistor Rc1 connected in series. The current supply circuit 5 has a capacitor Cc2 and a resistor Rc2 connected in series. ;COPYRIGHT: (C)2009,JPO&INPIT",

keywords = "EWI-26063, IR-102614",

author = "Saito Tetsuya and Bram Nauta",

year = "2011",

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day = "14",

language = "English",

type = "Patent",

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TY - PAT

T1 - Operation Amplifier

AU - Tetsuya, Saito

AU - Nauta, Bram

PY - 2011/12/14

Y1 - 2011/12/14

N2 - PROBLEM TO BE SOLVED: To provide an operation amplifier which improves power source voltage removal ratios while assuring phase compensation characteristics, and therefore can be realized with a small-scale circuit and low power consumption. SOLUTION: The operation amplifier comprises: a differential amplifier circuit 1; an output amplifier circuit 2 connected in series to the poststage of the differential amplifier circuit 1; a phase compensation circuit 3 for performing phase compensation of input/output characteristics; and a current supply circuit 5 for supplying an alternating current to this phase compensation circuit 3. Impedance of the current supply circuit 5 is equal to impedance of the phase compensation circuit 3. The phase compensation circuit 3 has a capacitor Cc1 and a resistor Rc1 connected in series. The current supply circuit 5 has a capacitor Cc2 and a resistor Rc2 connected in series. ;COPYRIGHT: (C)2009,JPO&INPIT

AB - PROBLEM TO BE SOLVED: To provide an operation amplifier which improves power source voltage removal ratios while assuring phase compensation characteristics, and therefore can be realized with a small-scale circuit and low power consumption. SOLUTION: The operation amplifier comprises: a differential amplifier circuit 1; an output amplifier circuit 2 connected in series to the poststage of the differential amplifier circuit 1; a phase compensation circuit 3 for performing phase compensation of input/output characteristics; and a current supply circuit 5 for supplying an alternating current to this phase compensation circuit 3. Impedance of the current supply circuit 5 is equal to impedance of the phase compensation circuit 3. The phase compensation circuit 3 has a capacitor Cc1 and a resistor Rc1 connected in series. The current supply circuit 5 has a capacitor Cc2 and a resistor Rc2 connected in series. ;COPYRIGHT: (C)2009,JPO&INPIT

KW - EWI-26063

KW - IR-102614

M3 - Patent

M1 - JP4838760 B2

ER -

Operation Amplifier

Abstract

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Operation amplifier

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