JP6981774B2 - スイッチトキャパシタ増幅回路、電圧増幅方法及び赤外線センサ装置 - Google Patents
スイッチトキャパシタ増幅回路、電圧増幅方法及び赤外線センサ装置 Download PDFInfo
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- 239000003990 capacitor Substances 0.000 title claims description 222
- 230000003321 amplification Effects 0.000 title description 53
- 238000003199 nucleic acid amplification method Methods 0.000 title description 53
- 238000000034 method Methods 0.000 title description 4
- 238000006243 chemical reaction Methods 0.000 claims description 33
- 238000010586 diagram Methods 0.000 description 18
- 230000003071 parasitic effect Effects 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/44—Electric circuits
- G01J1/46—Electric circuits using a capacitor
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F11/00—Dielectric amplifiers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
- G01J5/14—Electrical features thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/34—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using capacitors, e.g. pyroelectric capacitors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K17/00—Measuring quantity of heat
- G01K17/003—Measuring quantity of heat for measuring the power of light beams, e.g. laser beams
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/005—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements using switched capacitors, e.g. dynamic amplifiers; using switched capacitors as resistors in differential amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
- H03F3/45928—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit
- H03F3/45968—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection using IC blocks as the active amplifying circuit by offset reduction
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/27—A biasing circuit node being switched in an amplifier circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/375—Circuitry to compensate the offset being present in an amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/411—Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising two power stages
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45356—Indexing scheme relating to differential amplifiers the AAC comprising one or more op-amps, e.g. IC-blocks
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45512—Indexing scheme relating to differential amplifiers the FBC comprising one or more capacitors, not being switched capacitors, and being coupled between the LC and the IC
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45514—Indexing scheme relating to differential amplifiers the FBC comprising one or more switched capacitors, and being coupled between the LC and the IC
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45528—Indexing scheme relating to differential amplifiers the FBC comprising one or more passive resistors and being coupled between the LC and the IC
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45616—Indexing scheme relating to differential amplifiers the IC comprising more than one switch, which are not cross coupled
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45631—Indexing scheme relating to differential amplifiers the LC comprising one or more capacitors, e.g. coupling capacitors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45634—Indexing scheme relating to differential amplifiers the LC comprising one or more switched capacitors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
- H03G3/3084—Automatic control in amplifiers having semiconductor devices in receivers or transmitters for electromagnetic waves other than radiowaves, e.g. lightwaves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Amplifiers (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Radiation Pyrometers (AREA)
Description
110 サーモパイル
120 増幅回路
130 A/D変換回路
10 オペアンプ
11 インピーダンス変換回路
12 演算増幅器
S1,S2 スイッチ回路
M1〜M5 スイッチ
C1、C2 コンデンサ
Claims (2)
- 信号源から入力電圧の供給を受け、前記入力電圧に応じた電荷を保持する第1動作と、前記入力電圧を増幅した出力電圧を出力する第2動作と、を行うスイッチトキャパシタ増幅回路であって、
正入力端及び負入力端を有し、出力端から前記出力電圧を出力するオペアンプと、
前記オペアンプの前記正入力端に一端が接続された第1キャパシタと、
前記オペアンプの前記負入力端に一端が接続された第2キャパシタと、
前記オペアンプの前記負入力端に一端が接続され、他端が所定電位に接続された第3キャパシタと、
前記第1動作時に前記第1キャパシタの他端と前記信号源とを接続し、前記第2動作時に前記第1キャパシタの他端を前記所定電位に接続する第1スイッチ回路と、
前記第1動作時に前記第2キャパシタの他端を前記所定電位に接続するとともに前記オペアンプの前記出力端と前記負入力端とを短絡し、前記第2動作時に前記第2キャパシタの他端と前記オペアンプの前記出力端とを接続することにより前記オペアンプの前記出力端と前記負入力端とを前記第2キャパシタを介して接続する第2スイッチ回路と、
前記第1スイッチ回路と前記第1キャパシタの他端との間に接続され、前記信号源の出力インピーダンスを所定のインピーダンスに変換するインピーダンス変換回路と、
前記第2キャパシタの容量に相当する容量を有し、一端が前記オペアンプの前記正入力端に接続され、他端が前記所定電位に接続された第4キャパシタと、
前記第1動作時に前記オペアンプの前記正入力端を前記所定電位に接続し、前記第2動作時に前記オペアンプの前記正入力端と前記所定電位とを非接続にする切替スイッチと、
を含むことを特徴とするスイッチトキャパシタ増幅回路。 - 信号源から入力電圧の供給を受け、前記入力電圧に応じた電荷を保持する第1動作と、前記入力電圧を増幅した出力電圧を出力する第2動作と、を行うスイッチトキャパシタ増幅回路であって、
正入力端及び負入力端を有し、出力端から前記出力電圧を出力するオペアンプと、
前記オペアンプの前記正入力端に一端が接続された第1キャパシタと、
前記オペアンプの前記負入力端に一端が接続された第2キャパシタと、
前記オペアンプの前記負入力端に一端が接続され、他端が所定電位に接続された第3キャパシタと、
前記第1動作時に前記第1キャパシタの他端を前記所定電位に接続し、前記第2動作時に前記第1キャパシタの他端と前記信号源とを接続する第1スイッチ回路と、
前記第1動作時に前記第2キャパシタの他端を前記所定電位に接続するとともに前記オペアンプの前記出力端と前記負入力端とを短絡し、前記第2動作時に前記第2キャパシタの他端と前記オペアンプの前記出力端とを接続することにより前記オペアンプの前記出力端と前記負入力端とを前記第2キャパシタを介して接続する第2スイッチ回路と、
前記第1スイッチ回路と前記第1キャパシタの他端との間に接続され、前記信号源の出力インピーダンスを所定のインピーダンスに変換するインピーダンス変換回路と、
前記第2キャパシタの容量に相当する容量を有し、一端が前記オペアンプの前記正入力端に接続され、他端が前記所定電位に接続された第4キャパシタと、
前記第1動作時に前記オペアンプの前記正入力端を前記所定電位に接続し、前記第2動作時に前記オペアンプの前記正入力端と前記所定電位とを非接続にする切替スイッチと、
を含むことを特徴とするスイッチトキャパシタ増幅回路。
Priority Applications (4)
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JP2017093049A JP6981774B2 (ja) | 2017-05-09 | 2017-05-09 | スイッチトキャパシタ増幅回路、電圧増幅方法及び赤外線センサ装置 |
US15/966,608 US10985721B2 (en) | 2017-05-09 | 2018-04-30 | Switched capacitor amplifier circuit, voltage amplification method, and infrared sensor device |
CN201810413838.1A CN108880496B (zh) | 2017-05-09 | 2018-05-03 | 开关电容器放大电路、电压放大方法以及红外线传感器装置 |
US17/167,434 US11863132B2 (en) | 2017-05-09 | 2021-02-04 | Switched capacitor amplifier circuit, voltage amplification method, and infrared sensor device |
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JP2017093049A JP6981774B2 (ja) | 2017-05-09 | 2017-05-09 | スイッチトキャパシタ増幅回路、電圧増幅方法及び赤外線センサ装置 |
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JP2018191169A JP2018191169A (ja) | 2018-11-29 |
JP6981774B2 true JP6981774B2 (ja) | 2021-12-17 |
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JP7111035B2 (ja) * | 2019-03-14 | 2022-08-02 | 株式会社デンソー | スイッチトキャパシタアンプ |
GB2590976B (en) * | 2020-01-13 | 2022-04-20 | Nokia Technologies Oy | Semiconductor based temperature sensor |
CN111504478B (zh) * | 2020-05-15 | 2021-02-12 | 江苏福维健康科技有限公司 | 一种一体化手术室测温系统 |
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-
2017
- 2017-05-09 JP JP2017093049A patent/JP6981774B2/ja active Active
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2018
- 2018-04-30 US US15/966,608 patent/US10985721B2/en active Active
- 2018-05-03 CN CN201810413838.1A patent/CN108880496B/zh active Active
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2021
- 2021-02-04 US US17/167,434 patent/US11863132B2/en active Active
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JP2018191169A (ja) | 2018-11-29 |
CN108880496B (zh) | 2023-11-03 |
US11863132B2 (en) | 2024-01-02 |
US20180331667A1 (en) | 2018-11-15 |
US10985721B2 (en) | 2021-04-20 |
CN108880496A (zh) | 2018-11-23 |
US20210159866A1 (en) | 2021-05-27 |
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