JP6531191B2 - 電子発振器 - Google Patents
電子発振器 Download PDFInfo
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- JP6531191B2 JP6531191B2 JP2018029448A JP2018029448A JP6531191B2 JP 6531191 B2 JP6531191 B2 JP 6531191B2 JP 2018029448 A JP2018029448 A JP 2018029448A JP 2018029448 A JP2018029448 A JP 2018029448A JP 6531191 B2 JP6531191 B2 JP 6531191B2
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- transistor
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- 230000010363 phase shift Effects 0.000 claims description 32
- 238000007493 shaping process Methods 0.000 claims description 28
- 230000010355 oscillation Effects 0.000 claims description 26
- 239000003990 capacitor Substances 0.000 claims description 24
- 230000001939 inductive effect Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 6
- 230000005672 electromagnetic field Effects 0.000 description 4
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 239000004065 semiconductor Substances 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000005686 electrostatic field Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
- H03B5/20—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator
- H03B5/24—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising resistance and either capacitance or inductance, e.g. phase-shift oscillator active element in amplifier being semiconductor device
-
- 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
- H03B5/1228—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 the amplifier comprising one or more field effect transistors
-
- 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
- H03B5/02—Details
- H03B5/04—Modifications of generator to compensate for variations in physical values, e.g. power supply, load, temperature
-
- 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
- H03B5/1203—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 the amplifier being a single transistor
-
- 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
- H03B5/1206—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 using multiple transistors for amplification
-
- 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
-
- 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
- H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
- H03B2200/003—Circuit elements of oscillators
- H03B2200/0038—Circuit elements of oscillators including a current mirror
-
- 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
- H03B2200/00—Indexing scheme relating to details of oscillators covered by H03B
- H03B2200/006—Functional aspects of oscillators
- H03B2200/0082—Lowering the supply voltage and saving power
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Description
3 LC共振回路
4 誘導性コンポーネント
5 容量性コンポーネント
6 発振器の出力ノード
9 位相シフト回路
11 第1の帰還回路
12 信号加算器
13 パルス整形回路
15 第2の帰還回路
21 位相シフター
28 キャパシター
Istarve 第1の電流源
Mn1 第1のトランジスター
Mn0 第2のトランジスター
Mnpd 第3のトランジスター
Mp1 第4のトランジスター
Mp0 第5のトランジスター
Vdd1 第1の基準電圧ノード
Vss1 第2の基準電圧ノード
Vdd2 第3の基準電圧ノード
Vb1 第1のバイアス用電圧源
Vb2 直流電圧源
Claims (11)
- 電子発振器(1)であって、
− 誘導性コンポーネント(4)と容量性コンポーネント(5)を有しており、第1の基準電圧ノード(Vdd1)と発振器の出力ノード(6)に接続されているLC共振回路(3)と、
− 当該発振器の出力ノード(6)に接続しており、周期的に導電性状態と非導電性状態で動作するように構成している第1のトランジスター(Mn1)と、及び
− 出力が前記第1のトランジスター(Mn1)に接続されており、第1の入力が第1の帰還回路(11)によって当該発振器の出力ノード(6)に接続されており、第2の入力がパルス整形回路(13)の出力に接続されている位相シフト回路(9)と
を有し、
前記パルス整形回路(13)の入力は、第2の帰還回路(15)によって当該発振器の出力ノード(6)に接続され、
前記位相シフト回路(9)は、前記第1の帰還回路(11)から受けた第1の帰還信号の位相を実質的に180度シフトする信号位相シフター(21、Mnpd)を有し、
前記位相シフト回路(9)は、さらに、
前記信号位相シフター(21、Mnpd)から受けた第1の信号と前記パルス整形回路(13)から受けた第2の信号を加算して合計された電流信号を得る信号加算器(12)と、及び
前記信号加算器(12)に接続されており、前記第1のトランジスター(Mn1)を通して当該発振器の出力ノード(6)に前記合計された電流信号をミラーリングするために前記第1のトランジスター(Mn1)と電流ミラーを形成する第2のダイオード接続トランジスター(Mn0)と
を有し、
前記パルス整形回路(13)は、電流加算器である前記信号加算器(12)に接続され、前記第2の信号を整形して当該発振器の出力信号の振幅及び/又は波形を制御することを可能にするように構成され、
前記パルス整形回路(13)は、第1の電流源(Istarve)を有する
ことを特徴とする発振器(1)。 - 前記第1のトランジスター(Mn1)と前記第2のダイオード接続トランジスター(Mn0)は、前記合計された電流信号に所定の係数を乗算するように構成している電流ミラー(Mn0、Mn1)を形成している
ことを特徴とする請求項1に記載の発振器(1)。 - 前記所定の係数は、20〜50の範囲内である
ことを特徴とする請求項2に記載の発振器(1)。 - 前記位相シフター(Mnpd)は、第3のトランジスター(Mnpd)を有する
ことを特徴とする請求項1〜3のいずれかに記載の発振器(1)。 - 前記第3のトランジスター(Mnpd)は、出力信号を接地に引くように構成しているプルダウントランジスターである
ことを特徴とする請求項4に記載の発振器(1)。 - 前記第3のトランジスター(Mnpd)は、当該発振器(1)の定常状態動作の段階の間に、前記第1のトランジスター(Mn1)と前記第2のダイオード接続トランジスター(Mn0)を周期的にオンにしオフにするように構成している
ことを特徴とする請求項4又は5に記載の発振器(1)。 - オンとオフの持続時間は両方とも、発振サイクルの実質的に半分である
ことを特徴とする請求項6に記載の発振器(1)。 - 前記パルス整形回路(13)は、第4のトランジスター(Mp1)と第5のトランジスター(Mp0)を有し、
前記第4のトランジスター(Mp1)と前記第5のトランジスター(Mp0)は、前記第1の電流源(Istarve)に接続されたコモンノードを有し、
前記第1の電流源(Istarve)からの第1の電流信号の少なくとも一部は、前記第4のトランジスター(Mp1)を通して前記信号加算器(12)に供給されるように構成している
ことを特徴とする請求項1に記載の発振器(1)。 - 前記第5のトランジスター(Mp0)は、当該発振器(1)の定常状態動作の段階の間にオフであるように構成しており、これによって、前記第1の電流源(Istarve)からの第1の電流がすべて、前記第4のトランジスター(Mp1)を通して前記信号加算器(12)に供給されることを可能にする
ことを特徴とする請求項8に記載の発振器(1)。 - 当該発振器の出力ノード(6)と前記第4のトランジスター(Mp1)の間に、前記第4のトランジスター(Mp1)に第2の帰還信号を供給する第2の帰還回路(15)が接続している
ことを特徴とする請求項8又は9に記載の発振器(1)。 - 前記パルス整形回路(13)は、前記第4のトランジスター(Mp1)をまたがる電圧をフィルタリングして前記第4のトランジスター(Mp1)を通して前記信号加算器(12)に供給される第2の電流信号を供給するためにキャパシター(28)を有する
ことを特徴とする請求項8〜10のいずれかに記載の発振器(1)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17160336.8 | 2017-03-10 | ||
EP17160336.8A EP3373449B1 (en) | 2017-03-10 | 2017-03-10 | An electronic oscillator |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018152845A JP2018152845A (ja) | 2018-09-27 |
JP6531191B2 true JP6531191B2 (ja) | 2019-06-12 |
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JP2018029448A Active JP6531191B2 (ja) | 2017-03-10 | 2018-02-22 | 電子発振器 |
Country Status (4)
Country | Link |
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US (1) | US10411648B2 (ja) |
EP (1) | EP3373449B1 (ja) |
JP (1) | JP6531191B2 (ja) |
KR (1) | KR102047182B1 (ja) |
Families Citing this family (1)
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CN112117993B (zh) * | 2020-09-18 | 2024-03-01 | 上海艾为电子技术股份有限公司 | 整形电路以及振荡电路 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5606294A (en) * | 1996-01-29 | 1997-02-25 | Ic Works, Inc. | Automatic gain control circuit and method |
JP3548819B2 (ja) * | 1999-10-29 | 2004-07-28 | 株式会社村田製作所 | 周波数切替型発振器及びそれを用いた電子機器 |
EP1301987A1 (en) * | 2000-07-20 | 2003-04-16 | Paratek Microwave, Inc. | Voltage controlled oscillators including tunable dielectric devices |
US7271672B2 (en) * | 2002-09-17 | 2007-09-18 | Nxp B.V. | Voltage controlled LC tank oscillator |
US7113043B1 (en) * | 2004-06-16 | 2006-09-26 | Marvell International Ltd. | Active bias circuit for low-noise amplifiers |
TWI266166B (en) * | 2004-12-16 | 2006-11-11 | Realtek Semiconductor Corp | Source follower and stabilizing current feedback circuit thereof |
US7479838B1 (en) * | 2005-05-25 | 2009-01-20 | Athas William C | Energy efficient waveform generation using tuned resonators |
US8451071B2 (en) * | 2008-11-24 | 2013-05-28 | Raytheon Company | Low noise oscillators |
US9330214B2 (en) * | 2014-01-10 | 2016-05-03 | International Business Machines Corporation | Phase noise reduction in voltage controlled oscillators |
-
2017
- 2017-03-10 EP EP17160336.8A patent/EP3373449B1/en active Active
-
2018
- 2018-02-12 US US15/894,420 patent/US10411648B2/en active Active
- 2018-02-22 JP JP2018029448A patent/JP6531191B2/ja active Active
- 2018-03-08 KR KR1020180027681A patent/KR102047182B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
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EP3373449A1 (en) | 2018-09-12 |
US10411648B2 (en) | 2019-09-10 |
US20180262160A1 (en) | 2018-09-13 |
EP3373449B1 (en) | 2020-10-07 |
JP2018152845A (ja) | 2018-09-27 |
KR102047182B1 (ko) | 2019-11-20 |
KR20180103753A (ko) | 2018-09-19 |
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