JPS6027231A - Superconductive frequency divider - Google Patents

Superconductive frequency divider

Info

Publication number
JPS6027231A
JPS6027231A JP13513283A JP13513283A JPS6027231A JP S6027231 A JPS6027231 A JP S6027231A JP 13513283 A JP13513283 A JP 13513283A JP 13513283 A JP13513283 A JP 13513283A JP S6027231 A JPS6027231 A JP S6027231A
Authority
JP
Japan
Prior art keywords
bit
frequency divider
power supply
driving
input
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP13513283A
Other languages
Japanese (ja)
Other versions
JPH0417488B2 (en
Inventor
Yuji Hatano
雄治 波多野
Yutaka Harada
豊 原田
Kunio Yamashita
山下 邦男
Nobuo Kodera
小寺 信夫
Ushio Kawabe
川辺 潮
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP13513283A priority Critical patent/JPS6027231A/en
Publication of JPS6027231A publication Critical patent/JPS6027231A/en
Publication of JPH0417488B2 publication Critical patent/JPH0417488B2/ja
Granted legal-status Critical Current

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  • Logic Circuits (AREA)

Abstract

PURPOSE:To obtain a multi-bit superconductive frequency divider to be actuated synchronously with an AC power supply by combining many master and slave FFs each of which is obtained by combining an AC driving Josephson logical circuit with a DC latch circuit. CONSTITUTION:An one-bit frequency divider consists of a master FF for holding data in a transition state part of an AC driving power supply and a slave FF for holding data in a steady-state part of the AC power supply. A DC driving FF or a storage loop to be a superconductive loop consisting of a Josephson magnetic quantum interference meter and inductance is used as the master FF. A latch circuit using a DC driving FF consists of an AND gate 101, a DC driving FF102 and a slave FF103 and divides an input clock 104 to be divided at its frequency by one bit. Many one-bit dividers 800 are connected with stages, ''1''s are made to appear at the rate of 1/2, 1/4 and 1/8 of an input 801 in inputs 802-804 of respective stages and the change of ''0'' and ''1'' is made to appear at the rate of twice, 4-times, 8-times and 16-times in outputs 806-809 of respective stages.

Description

【発明の詳細な説明】 〔発明の利用分野〕 この発明は、超電導素子、特にジョセフソン素子を用い
た超電導分周器に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a superconducting frequency divider using a superconducting element, particularly a Josephson element.

〔従来技術〕[Prior art]

交流駆動ジョセフソン論理回路を使用し、その駆動交流
電源の周波数を分周する分周回路に関しては、H,C,
Jones 、 ” 5elf −Activatin
gT oggl e”、 IBM Technical
 ])isclosure13ulletin、 ’V
o1.23.A9. Feb、1981.に1ビツト(
−N分周)のものが開示されているが、多ビットの分周
器については何らの記載もなく、未だ周知のものがない
Regarding the frequency divider circuit that uses an AC drive Josephson logic circuit and divides the frequency of the drive AC power supply, H, C,
Jones, “5elf-Activatin.
IBM Technical
])isclosure13ulletin,'V
o1.23. A9. Feb. 1981. 1 bit (
-N frequency divider), but there is no description of a multi-bit frequency divider, and there is no known one yet.

〔発明の目的〕[Purpose of the invention]

この発明の目的は、交流駆動ジョセフソン論理回路を駆
動するための交流電源に同期して動作す要するにこの発
明は、交流駆動ジョセフソン論理回路と直流ラッチ回路
を組合せた主および従属フリップフロップを多数個結合
して多ビットの分周器を構成したものである。
The purpose of this invention is to operate in synchronization with an AC power supply for driving an AC-driven Josephson logic circuit. A multi-bit frequency divider is constructed by combining the individual frequency dividers.

〔発明の実施例〕[Embodiments of the invention]

以下、この発明を図面に基づいて説明する。第1図は、
この発明の基本となる1ビツトの分周器の構成を示す回
路図である。まず構成を説明する。
The present invention will be explained below based on the drawings. Figure 1 shows
FIG. 2 is a circuit diagram showing the configuration of a 1-bit frequency divider that is the basis of the present invention. First, the configuration will be explained.

交流駆動型ジョセフソン論理回路において、一つに引き
継ぐためのラッチ回路が必要であるが、該ラッチ回路は
、交流電源の遷移状態部分においてデータを保持するた
めの主スリップフロップと交流電源の定常状態部分にお
いてデータを保持するだめの従属フリップフロップから
なる。主フリップフロップとしては、直流駆動フリップ
フロップまたはジョセフソン磁気量子干渉計(Jose
phsonInterferometer 、以下、J
Iと略記する)とインダクタンスからなる超電導ループ
であるところのストレージループが用いられる。ここで
は上記直流駆動フリップフロップを使用したラッチ回路
を直流ラッチ回路と名付け、該回路全第1図に示す。該
図において101はANDゲート、102は直流駆動フ
リップフロップ、103は従属フリップフロップ(Se
l f Qate And回路と呼ばれるので、以下、
SGAと略記する)、104はクロック(被分局)入力
、105はリセット入力(以下、R入力と記す)、10
6はセット入力(以下、S入力と記す)、107は真値
出力(以下、Qと記す)、108は補値出力(以下、Q
と記す)、109は上記SGAの真値出力(’l’ru
eし・を下、T出力と記す)また110は同上の補値出
力(Complement 、以下、C出カド記す)ヲ
示し、該第1図中、111の黒点は抵抗を介して接示す
ような回路になる。なお、以下、各図とも同一または同
等の部位には同一の符号を付ける。該第2図において、
200は電源母線、201は分流抵抗17Ω、202は
負荷抵抗3Ω、203は負荷抵抗2.5Ω、204は3
接合、TI、205は2接合JI、206は電流注入型
ロジック素子(Current Injectial 
I、ogic Element。
In an AC-driven Josephson logic circuit, a latch circuit is required to take over the transition, and the latch circuit is a main slip-flop for holding data in the transition state portion of the AC power supply, and a latch circuit that is connected to the main slip-flop to hold data in the transition state portion of the AC power supply. It consists of a slave flip-flop that holds data in each section. The main flip-flop can be a DC-driven flip-flop or a Josephson magnetic quantum interferometer (Jose
phsonInterferometer, hereinafter referred to as J
A storage loop, which is a superconducting loop consisting of an inductance (abbreviated as I) and an inductance, is used. Here, a latch circuit using the above-mentioned DC driven flip-flop is named a DC latch circuit, and the entire circuit is shown in FIG. In the figure, 101 is an AND gate, 102 is a DC-driven flip-flop, and 103 is a dependent flip-flop (Se
It is called l f Qate And circuit, so below,
104 is a clock (distributed station) input, 105 is a reset input (hereinafter referred to as R input), 10
6 is a set input (hereinafter referred to as S input), 107 is a true value output (hereinafter referred to as Q), and 108 is a complement value output (hereinafter referred to as Q).
), 109 is the true value output of the above SGA ('l'ru
In addition, 110 indicates the same complement output (hereinafter referred to as C output), and the black dot 111 in FIG. It becomes a circuit. Note that, hereinafter, the same or equivalent parts are given the same reference numerals in each figure. In FIG. 2,
200 is a power supply bus, 201 is a shunt resistance of 17Ω, 202 is a load resistance of 3Ω, 203 is a load resistance of 2.5Ω, and 204 is a 3Ω load resistance.
Junction, TI, 205 is a two-junction JI, 206 is a current injection logic element.
I, ologic Element.

以下、CILと略記す)を示す。つぎに上記3接合JI
の構成を示すと第3図のようになる。該第3図において
301は分流抵抗6Ω、302はダンピング抵抗2Ω、
303および304はインダクタンス(304は1.5
pH)であシ、該インダクタンス303および304は
磁気的に結合している。また305は電流密度1000
 A/crn” 、 5μm11′のジョセフソン接合
、306はこれを2個並べたものである。つぎに上記2
接合JIの構成を第4図に示す。該第4図において、4
01および402はインダクタンス(402は0.8p
H)であって、該インダクタンス401および4020
.8pHのインダクタンス、503はダンピング抵抗2
Ω、504は上記ジョセフソン接合305と同一のジョ
セフソン接合、505は上記ジョセフノン接合504’
i3個並べたものである。
(hereinafter abbreviated as CIL). Next, the above 3-junction JI
The configuration is shown in Figure 3. In FIG. 3, 301 is a shunt resistance of 6Ω, 302 is a damping resistance of 2Ω,
303 and 304 are inductances (304 is 1.5
pH), the inductances 303 and 304 are magnetically coupled. Also, 305 has a current density of 1000
A/crn", 5 μm 11' Josephson junction, 306 is a combination of two of these. Next, the above 2
The configuration of the joint JI is shown in FIG. In FIG. 4, 4
01 and 402 are inductances (402 is 0.8p
H), the inductances 401 and 4020
.. 8 pH inductance, 503 is damping resistance 2
Ω, 504 is the same Josephson junction as the above Josephson junction 305, and 505 is the above Josephson junction 504'
This is a combination of three i.

つぎに作用を説明する。第2図において、直流電源20
7,208および209にそれぞれ直流電流0.6 m
 A 、 0.4 m AおよびOmAを加えた場合の
動作状態を第6図によって説明する。該第2図の電源母
線200に第6図の601に示すような振幅±11.2
mVの台形状波形電圧を、またクロック入口104とし
て602に示すような振幅±0.4mAの波形電流を供
給すると、上記R入力105、S入力106、Q108
、T出力109およびC出力110として第6図に示す
ように603.604,605,606および607の
波形が生じる。まず、初期状態として直流フリップフロ
ップ102の出力が”0”(Q=”0”。
Next, the effect will be explained. In FIG. 2, a DC power supply 20
7, 208 and 209 respectively with DC current 0.6 m
The operating state when A, 0.4 mA and OmA are added will be explained with reference to FIG. The power supply bus 200 in FIG. 2 has an amplitude of ±11.2 as shown at 601 in FIG.
When a trapezoidal waveform voltage of mV and a waveform current of amplitude ±0.4mA as shown at 602 are supplied as the clock input 104, the above R input 105, S input 106, and Q108
, T output 109 and C output 110, waveforms 603, 604, 605, 606 and 607 are generated as shown in FIG. First, as an initial state, the output of the DC flip-flop 102 is "0"(Q="0").

Q=″′1”)とすると、電源電圧601がOmVから
11.2mVまで上昇した場合、上記5GA103はQ
=61”を検出してC出力110がってS入力106が
@1#になシ、フリップ70ツブ102,103がON
状態になって出力″′1”を発生する。、この状態で電
源電圧601が+11.2mVから降下してOmV付近
になると、ANDゲ−)101および5GA103はリ
セットされる。
Q=''1''), when the power supply voltage 601 increases from OmV to 11.2mV, the above 5GA103 has Q
=61'' is detected, the C output 110 is turned on, the S input 106 is @1#, and the flip 70 knobs 102 and 103 are turned on.
state and generates an output "'1". In this state, when the power supply voltage 601 drops from +11.2 mV to around OmV, the AND gate 101 and the 5GA 103 are reset.

さらに電源電圧601が−11,2mVまで降下すると
、今度は5GA103はQ、=−1”e検出L、T出力
109をON状態にする。その状態でクロック人力10
4が@1#になると、ANDゲート101のうちT出力
109の入っているものだけがON状態になシ、R入力
105が′1”になる。
When the power supply voltage 601 further drops to -11.2 mV, the 5GA 103 turns on the Q,=-1"e detection L and T outputs 109. In that state, the clock power is 10 mV.
When 4 becomes @1#, only the AND gate 101 containing the T output 109 is turned on, and the R input 105 becomes '1'.

このように波形603,604または同606゜607
はクロック人力104の波形602の1分周出力となる
。そのシミュレーション結果を第7図に示す。このよう
な1ビツト分周器を用いて多ピット分周器を構成するこ
の発明の一実施例としてはクリップフロップへのセット
入力をつぎのビットの分局入力とし、りぎのビットの7
リツプフロツプへのセット入力をそのつぎのビットの分
周入力とするというように多重に縦続接続していく構成
である。その結線の状態を第8図に示す。該図の800
は上記第1図に示した1ビツトの分局器に相当するもの
で、図示802〜809の各部における出力を下表1に
示す。該表中、′1”は出力が存在する状態を、また′
0”は出力が存在しない状態を示す。すなわち、8o2
には801れ、このときにそれぞれのフリップ70ツブ
の状態が変化する。これに対して806〜809には2
倍、4倍、8倍および16倍になった1o”と′1”の
変化が現われる。
In this way, waveforms 603, 604 or 606° 607
becomes the 1-frequency-divided output of the waveform 602 of the clock input 104. The simulation results are shown in FIG. In an embodiment of the present invention in which a multi-pit frequency divider is configured using such a 1-bit frequency divider, the set input to the clip-flop is set as the division input of the next bit, and the 7th bit of the next bit is
The configuration is such that a set input to a lip-flop is used as a frequency-divided input for the next bit, so that multiple bits are connected in cascade. The state of the wiring is shown in FIG. 800 in the figure
corresponds to the 1-bit branching unit shown in FIG. 1 above, and the outputs of each section 802 to 809 shown in the figure are shown in Table 1 below. In the table, '1' indicates the state where the output is present, and '
0” indicates no output, i.e. 8o2
801, and at this time the state of each flip 70 changes. On the other hand, 806 to 809 have 2
Changes of 1o'' and '1'' that are doubled, 4x, 8x and 16x appear.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、この発明によれば、交流駆動ジョ
セフソン論理回路を構成することによつ〔、駆動交流電
源の周波数を分周する超電導分周惇全得られるという効
果がある。
As explained above, according to the present invention, by configuring an AC-driven Josephson logic circuit, it is possible to obtain a superconducting frequency division function that divides the frequency of a driving AC power source.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、直流ラッチを用いた1ビツト分周器の回路図
、第2図は、ジョセフソンデバイスを用いて上記第1図
と同等の回路を構成した一実施例図、第3図は、3接合
JIの回路図、第4図は、2接合JIの回路図、第5図
は、CILの回路図、第6図は、上記第2図の動作説明
図、第7図は、そのシミュレーション結果を示す図、第
8図は、この発明の多ピット分周器の一実施例の構成図
を示す。 101・・・ANDゲート、102・・・直流駆動フリ
ップフロップ、103・・・8GA、200・・・電源
母線、201.202,203,301,302,50
3・・・抵抗、204・・・3接合JI、205・・・
2接合JI、206・・・CIL、303,304,4
01 。 402.501.502・・・インダクタンス、305
゜403.504・・・ジョセフノン接合、207゜2
08.209・・・直流電源、800・・・1ビツト分
周器。 特許出願人 工業技術院長 川 1)裕 部 第 1 図 %z 図 第 3 図 箔 4 図 第 5 図 は)(1)
Figure 1 is a circuit diagram of a 1-bit frequency divider using a DC latch, Figure 2 is an example of a circuit equivalent to Figure 1 using Josephson devices, and Figure 3 is a circuit diagram of a 1-bit frequency divider using a DC latch. , 3-junction JI circuit diagram, Figure 4 is 2-junction JI circuit diagram, Figure 5 is CIL circuit diagram, Figure 6 is an explanatory diagram of the operation of Figure 2 above, and Figure 7 is the circuit diagram of 2-junction JI. FIG. 8, which is a diagram showing simulation results, shows a configuration diagram of an embodiment of the multi-pit frequency divider of the present invention. 101...AND gate, 102...DC drive flip-flop, 103...8GA, 200...power supply bus, 201.202,203,301,302,50
3...Resistance, 204...3 junction JI, 205...
2-junction JI, 206...CIL, 303, 304, 4
01. 402.501.502...Inductance, 305
゜403.504...Joseph non junction, 207゜2
08.209...DC power supply, 800...1-bit frequency divider. Patent applicant Director of the Agency of Industrial Science and Technology Kawa 1) Hirobe Figure 1%z Figure 3 Figure 4 Figure 5) (1)

Claims (1)

【特許請求の範囲】[Claims] 1、交流駆動ジョセフソン論理回路を使用し、交流電源
の周波数を基準入力とするとともに、ラッチ回路に相補
信号入力および相補信号出力の直流ラッチ回路を用いて
多ビットの分周器を構成すること全特徴とする超電導分
周器。
1. Construct a multi-bit frequency divider by using an AC-driven Josephson logic circuit, using the frequency of the AC power supply as the reference input, and using a DC latch circuit with complementary signal input and complementary signal output in the latch circuit. Superconducting frequency divider with all features.
JP13513283A 1983-07-26 1983-07-26 Superconductive frequency divider Granted JPS6027231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13513283A JPS6027231A (en) 1983-07-26 1983-07-26 Superconductive frequency divider

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13513283A JPS6027231A (en) 1983-07-26 1983-07-26 Superconductive frequency divider

Publications (2)

Publication Number Publication Date
JPS6027231A true JPS6027231A (en) 1985-02-12
JPH0417488B2 JPH0417488B2 (en) 1992-03-26

Family

ID=15144553

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13513283A Granted JPS6027231A (en) 1983-07-26 1983-07-26 Superconductive frequency divider

Country Status (1)

Country Link
JP (1) JPS6027231A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5477037A (en) * 1977-11-30 1979-06-20 Ibm Selffgate circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5477037A (en) * 1977-11-30 1979-06-20 Ibm Selffgate circuit

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Publication number Publication date
JPH0417488B2 (en) 1992-03-26

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