JP2017069825A - 発振回路 - Google Patents
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- 230000010355 oscillation Effects 0.000 title claims abstract description 45
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 239000003990 capacitor Substances 0.000 claims description 13
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- 238000010586 diagram Methods 0.000 description 11
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K4/00—Generating pulses having essentially a finite slope or stepped portions
- H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
- H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
- H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
- H03K4/50—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth voltage is produced across a capacitor
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
- G05F3/08—Regulating voltage or current wherein the variable is dc
- G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
- G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
- G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
- G05F3/26—Current mirrors
- G05F3/262—Current mirrors using field-effect transistors only
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1234—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device and comprising means for varying the output amplitude of the generator
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
- H03B5/1271—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the frequency being controlled by a control current, i.e. current controlled oscillators
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
- H03K3/0231—Astable circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
- H03L7/089—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses
- H03L7/0891—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector generating up-down pulses the up-down pulses controlling source and sink current generators, e.g. a charge pump
- H03L7/0895—Details of the current generators
- H03L7/0896—Details of the current generators the current generators being controlled by differential up-down pulses
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
- H03L7/093—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using special filtering or amplification characteristics in the loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Nonlinear Science (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Control Of Electrical Variables (AREA)
- Oscillators With Electromechanical Resonators (AREA)
Abstract
【解決手段】入力電流に基づいて発振する電流制御発振器104と、入力電流を第1の定電流Imaxと第2の定電流Iminのそれぞれと比較し、入力電流が第1の定電流に達すると、入力電流の経路上に備えられたトランジスタ121により入力電流の最大電流値を制限し、入力電流が第2の定電流まで低下すると、入力電流の経路と並列に備えられたトランジスタ122により、入力電流の経路に電流を加えて入力電流の最小電流を制限する電流制限回路106を備える。
【選択図】図1
Description
従来の発振回路400は、電源端子101と、接地端子102と、V/I変換回路103と、PMOSトランジスタ115及び118と、電流制御発振器104とを備えている。
V/I変換回路103は、第1の基準電圧源111と、誤差増幅回路112と、NMOSトランジスタ114と、抵抗113とを備えている。
電流制御発振器104は、コンデンサ141と、第2の基準電圧源143と、比較器142と、NMOSトランジスタ144とを備えている。
V/I変換回路103は、誤差増幅器112を含む負帰還ループによって、第1の基準電圧源111の電圧VREFとNMOSトランジスタ114のソース電圧が等しくなるように動作する。結果として、抵抗113に電圧VREFに等しい電圧が印加され、NMOSトランジスタ114のドレイン電流I1は定電流となる。PMOSトランジスタ115と118とは、カレントミラーを構成し、電流I1に比例した電流I2を電流制御発振器104に供給する。
本実施形態の発振回路100は、V/I変換回路103と、電流制御発振器104と、電流源回路105とを備えて構成されている。
PMOSトランジスタ115は、ソースが電源端子101に接続され、ゲートとドレインが接続されている。PMOSトランジスタ116は、ソースが電源端子101に接続され、ドレインが電流源119の一端とPMOSトランジスタ121のゲートに接続されている。PMOSトランジスタ117は、ソースが電源端子101に接続され、ドレインが電流源120の一端とPMOSトランジスタ122のゲートに接続されている。PMOSトランジスタ118は、ソースが電源端子101に接続され、ドレインが電流制御発振器104に接続されている。
図2は、本実施形態の発振回路の動作を説明するための図である。
図2において、横軸は抵抗113の抵抗値RTを示し、縦軸はPMOSトランジスタ115に流れる電流I1を示している。
以上説明したように、本実施形態の発振回路によれば、V/I変換回路に何らかの異常が生じた場合であっても、電流制御発振器104に供給される電流が制限され、周波数の最大値と最小値を制限することが出来る。
本実施形態の発振回路200は、第1の実施形態の発振回路100におけるV/I変換回路103に替えて、クロック入力端子201と、位相周波数比較回路(PFD)202と、チャージポンプ回路(CP)203と、コンデンサ204と、NMOSトランジスタ214と、抵抗213とを備えている。
電流制御発振器104と電流源回路105については、図1に示す発振回路100と同様であるため、同一の構成要素には同一の符号を付し、重複する説明は省略する。
例えば、上記実施形態においては、発振器として電流制御発振器104を用いた例を説明したが、リングオシレータ等、その他の発振器を用いてもよい。
103 V/I変換回路
104 電流制御発振器
105 電流源回路
106 電流制限回路
202 位相周波数比較回路
203 チャージポンプ
Claims (7)
- 電源端子と電流入力端子の間の第1の電流経路に流れる第1の電流に基づいて第2の電流を生成する電流源回路と、
前記第2の電流に基づいて発振する電流制御発振器とを備え、
前記電流源回路は、
前記第1の電流経路に設けられ、ゲートとドレインが接続された第1のPMOSトランジスタと、
前記第1のPMOSトランジスタとカレントミラーを構成し、前記第2の電流を流す第2のPMOSトランジスタと、
前記第1のPMOSトランジスタとカレントミラーを構成する第3のPMOSトランジスタと、
前記第3のPMOSトランジスタのドレインに接続された定電流源と、
前記第3のPMOSトランジスタのドレインの電圧によりゲートを制御され、前記第1の電流の電流値を制限する第4のPMOSトランジスタとを有することを特徴とする発振回路。 - 前記第4のPMOSトランジスタは前記第1の電流経路に設けられ、前記第1の電流の最大電流値を制限することを特徴とする請求項1に記載の発振回路。
- 前記第4のPMOSトランジスタは前記電流入力端子と接地端子との間の第2の電流経路に設けられ、前記第1の電流の最小電流値を制限することを特徴とする請求項1に記載の発振回路。
- 前記第1のPMOSトランジスタとカレントミラーを構成する第5のPMOSトランジスタと、
前記第5のPMOSトランジスタのドレインに接続された定電流源と、
前記電流入力端子と接地端子との間の第2の電流経路に設けられた第6のトランジスタとをさらに備え、
前記第6のトランジスタは前記第1の電流の最小電流値を制限することを特徴とする請求項2に記載の発振回路。 - 所定の電圧に基づき所定の電流を出力するV/I変換回路をさらに備え、
V/I変換回路の出力が前記電流入力端子に接続されていることを特徴とする請求項1乃至4のいずれか一項に記載の発振回路。 - クロック信号と前記電流制御発振器の出力を受ける位相周波数比較回路と、
前記位相周波数比較回路の出力を受けるチャージポンプ回路と、
前記チャージポンプ回路の出力に接続されたコンデンサと、
前記電流入力端子にドレインが接続され、前記チャージポンプ回路の出力をゲートに受けるNMOSトランジスタと、
前記NMOSトランジスタのソースに接続された抵抗とをさらに備えることを特徴とする請求項1乃至4のいずれか一項に記載の発振回路。 - 入力電流に基づいて発振する電流制御発振器と、
前記入力電流を第1の定電流と第2の定電流のそれぞれと比較し、前記入力電流が前記第1の定電流に達すると、前記入力電流の経路上に備えられたトランジスタにより前記入力電流の最大電流値を制限し、前記入力電流が前記第2の定電流まで低下すると、前記入力電流の経路と並列に備えられたトランジスタにより、前記入力電流の経路に電流を加えて前記入力電流の最小電流を制限する電流制限回路を備えたことを特徴とする発振回路。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015194570A JP6624873B2 (ja) | 2015-09-30 | 2015-09-30 | 発振回路 |
TW105130083A TWI680640B (zh) | 2015-09-30 | 2016-09-19 | 振盪電路 |
US15/272,695 US9837960B2 (en) | 2015-09-30 | 2016-09-22 | Oscillation circuit |
KR1020160124884A KR102468451B1 (ko) | 2015-09-30 | 2016-09-28 | 발진 회로 |
CN201610868650.7A CN106933296B (zh) | 2015-09-30 | 2016-09-30 | 振荡电路 |
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JP2015194570A JP6624873B2 (ja) | 2015-09-30 | 2015-09-30 | 発振回路 |
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JP2017069825A true JP2017069825A (ja) | 2017-04-06 |
JP6624873B2 JP6624873B2 (ja) | 2019-12-25 |
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US (1) | US9837960B2 (ja) |
JP (1) | JP6624873B2 (ja) |
KR (1) | KR102468451B1 (ja) |
CN (1) | CN106933296B (ja) |
TW (1) | TWI680640B (ja) |
Cited By (1)
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KR20210130106A (ko) | 2020-04-20 | 2021-10-29 | 윈본드 일렉트로닉스 코포레이션 | 발진회로 및 반도체 집적회로 |
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TWI724659B (zh) * | 2019-11-29 | 2021-04-11 | 杰力科技股份有限公司 | 負載開關的控制電路 |
JP2023003199A (ja) * | 2021-06-23 | 2023-01-11 | キオクシア株式会社 | 半導体集積回路、半導体記憶装置、メモリシステム及び周波数発生方法 |
US11870448B2 (en) * | 2021-09-21 | 2024-01-09 | Texas Instruments Incorporated | Adjustable phase locked loop |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5831486A (en) * | 1997-09-04 | 1998-11-03 | Integrated Device Technology, Inc. | Extended range current controlled oscillator |
JP3874577B2 (ja) | 1999-07-27 | 2007-01-31 | 新日本無線株式会社 | 電圧制御発振回路 |
US6329883B1 (en) * | 2000-11-01 | 2001-12-11 | Cirrus Logic, Inc. | Method and system for controlling a tuning voltage of a phase-locked loop circuit to an optimal value |
US6414863B1 (en) * | 2001-08-30 | 2002-07-02 | Texas Instruments Incorporated | Frequency control circuit for unregulated inductorless DC/DC converters |
JP4148357B2 (ja) | 2002-12-16 | 2008-09-10 | 旭化成エレクトロニクス株式会社 | 発振器およびpll回路 |
CN100486115C (zh) * | 2003-05-30 | 2009-05-06 | 因芬奈昂技术股份有限公司 | 自校准的恒定增益可调振荡器 |
US6897717B1 (en) * | 2004-01-20 | 2005-05-24 | Linear Technology Corporation | Methods and circuits for more accurately mirroring current over a wide range of input current |
JP2007052569A (ja) * | 2005-08-17 | 2007-03-01 | Rohm Co Ltd | 定電流回路およびそれを用いたインバータならびに発振回路 |
TW200727591A (en) * | 2006-01-06 | 2007-07-16 | Realtek Semiconductor Corp | Phase lock loop (PLL) for rapid lock-in |
US8432169B2 (en) * | 2007-09-20 | 2013-04-30 | Panasonic Corporation | Proximity sensor |
US8604885B2 (en) * | 2011-07-12 | 2013-12-10 | Kunihiko Kouyama | Differential ring oscillator-type voltage control oscillator |
CN104679095A (zh) * | 2015-02-15 | 2015-06-03 | 格科微电子(上海)有限公司 | 电流源及其阵列、读出电路及其控制方法、放大电路 |
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- 2016-09-19 TW TW105130083A patent/TWI680640B/zh not_active IP Right Cessation
- 2016-09-22 US US15/272,695 patent/US9837960B2/en active Active
- 2016-09-28 KR KR1020160124884A patent/KR102468451B1/ko active IP Right Grant
- 2016-09-30 CN CN201610868650.7A patent/CN106933296B/zh not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20210130106A (ko) | 2020-04-20 | 2021-10-29 | 윈본드 일렉트로닉스 코포레이션 | 발진회로 및 반도체 집적회로 |
JP2021175007A (ja) * | 2020-04-20 | 2021-11-01 | ウィンボンド エレクトロニクス コーポレーション | 発振回路 |
US11323067B2 (en) | 2020-04-20 | 2022-05-03 | Windbond Electronics Corp. | Oscillator circuit and semiconductor integrated circuit |
Also Published As
Publication number | Publication date |
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KR20170038710A (ko) | 2017-04-07 |
KR102468451B1 (ko) | 2022-11-17 |
TWI680640B (zh) | 2019-12-21 |
CN106933296A (zh) | 2017-07-07 |
US20170093334A1 (en) | 2017-03-30 |
CN106933296B (zh) | 2020-05-19 |
TW201722064A (zh) | 2017-06-16 |
US9837960B2 (en) | 2017-12-05 |
JP6624873B2 (ja) | 2019-12-25 |
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