{"created":"2022-01-28T01:54:06.978082+00:00","id":2006859,"links":{},"metadata":{"_buckets":{"deposit":"db221185-1af1-475f-a653-144405671b32"},"_deposit":{"id":"2006859","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"2006859"},"status":"published"},"_oai":{"id":"oai:u-ryukyu.repo.nii.ac.jp:02006859","sets":["1642837622505:1642837933579:1642837935753","1642838403551:1642838406845"]},"author_link":[],"item_1617186331708":{"attribute_name":"Title","attribute_value_mlt":[{"subitem_1551255647225":"トランジスタ一差働増幅器を用いた2線式計算機回路","subitem_1551255648112":"ja"},{"subitem_1551255647225":"Two wire System Computer Circuits using Transistor Difference Amplifier.","subitem_1551255648112":"en"}]},"item_1617186419668":{"attribute_name":"Creator","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"安冨祖, 忠信","creatorNameLang":"ja"}]},{"creatorNames":[{"creatorName":"Ａｆｕｓｏ, Chushin","creatorNameLang":"ja"}]}]},"item_1617186476635":{"attribute_name":"Access Rights","attribute_value_mlt":[{"subitem_1522299639480":"open access","subitem_1600958577026":"http://purl.org/coar/access_right/c_abf2"}]},"item_1617186626617":{"attribute_name":"Description","attribute_value_mlt":[{"subitem_description":"ディジタル電子計算機回路の高速化の一方法として、小信号で且つ高速に動作するトランジスター差働増幅器をとりあげ、之を用いた2線式の程々の計算機回路を設計、試作してみた。(この回路を計算機回路に応用することはPoppelbaum教授により提起された。)エミターを共通点とするトランジスター差働スイッチング回路(一般には増幅回路と呼ばれているが、ここではスイッチング回路として用いたのでスイッチング回路と呼ぶ)はスイッチング感度が高く、また高速で動作する。例えば市販されている米国 Western Electric 社製の GF-45011 を用いると、スイッチング感度が1ⅴで、,スイッチング速度が2musである。この回路を用いたAND、OR回路の動作速度は約3musである。この差働増幅回路を用いた系の特徴として、信号電圧は常に共椀分と共に対になって存在する為、NOT回路は単に対になっている2つの線を入れ替えるだけで得られ、またAND回路とOR回路は本質的には同一の回路である。Exclusive-OR回路はAND、OR、NOTを論理的に組合せて得られるが、電気回路的に簡素化された回路が得られる。フリップ･フロップについては2位類のものが考えられ、一つは高速度で動作する(2.5mus)が入力出力が同一点である為、或る場合には使用困難な回路で、他の一つは動作速度を多少犠牲にし(4mus)、入力出力を完全に分離した回路である。前者を用い、F-エレメントおよびC-エレメントの回路を設計した。F-エレメントの応用例として、4桁のシフティング･レヂスターを試作した。80Mc迄順調に動作することが確かめられたが、それ以上高い周波数に対しては駆動発振器の都合で試験は出来なかった。トランジスタ一差働増幅器のその他の応用として、この他に2進計数回路、パルス成形回路、周波数増倍器が試作された。トランジスタ一差働増幅器の基本的な動作条件として、エミター電流の大きさ、および入力電圧の振幅が重要であることが実験的に認められた。高速スイッチングにはエミター電流が小さくなくてはいけないこと、また入力電圧は静的スイッチング電圧よりも幾分大きくとる必要があることがわかった。この他に、トランジスター差働スイッチング回路を縦続接続して使用する場合には、駆動される差働スイッチング回路の過渡時入力インピーダンスが低い為に信号パルスの立上り、下りが害され、動作時間が長くなる。この問題を解決する方法としては、現在のところ電流増幅回路を付加するうう他にない様である。併しこの場合回路が複雑になるので、実際の回路の製作に当っては浮遊容量、浮遊誘導による悪影響がない様に、部品の幾何学的配置を慎重に考慮する必要がある。この実験で扱った回路には電流増幅器はつけてない。","subitem_description_type":"Other"},{"subitem_description":"To obtain high speed operation of electronic digital computer circuits, a small signal switching circuit, transistor difference amplifier circuit, has been considered. (This circuit was first proposed by W. J. Poppelbaum) A transistor difference amplifier of common-connected emitter has high switching sensitivity and operates fast. Using GF-45011 (Western Electric Co.) switching sensitivity of 1 volt and switching speed of 2 milli-micro seconds were obtained. Then basic logic circuits, AND gate and OR gate, were designed. Because of the good feature of the difference amplifier system, may be called\" Two wire System\", both AND gate and OR gate are essentially the same and NOT circuit can be obtained by only interchanging the two wires. Speed of the AND gate and OR gate observed was about 3 milli-micro seconds. An intergrated two input Exclusive-OR circuit was shown. Two kinds of flip-flop circuit were designed; the one which has advantage of speed (2.5 mili-micro seconds of setting time) but has the somewhat peculiar characteristic that the input point and the output point are exactly the same, the other which is inferior to the former in speed-wise (4 mili-micro seconds of setting time) but has the advantage that the input and the output are completely separated. Using the former, F-element circuit and C-element circuit were designed. As one of applications of F-element circuit to more complicated circuits 4-bit shifting register were made and tested. The result was satisfactory up to 80 mc, and for higher frequencies the experiment was not carried out because of the lack of the appropriate oscillator. As miscellaneous applications of transistor difference amplifier the followings were made and tested: 1) Binary couter (tested up to 80 mc) 2) Pulse shaper 3) Frequency doubler (80 mc was obtained by 40 mc input) On the switching speed of the difference amplifier, the emitter current and the magnitude of the input was found to be important. For highspeed operation, the emitter current should be chosen small enough, and the magnitude of the input voltage should be chosen somewhat higher than the static switching voltage. Although the speed of operation of single difference amplifier is about 2 mili-micro seconds under the optimum condition, the situation is different when another difference amplifier is driven. This is because of the fact that the transient input impedance of the difference amplifier is low. The difference amplifier with emitter followers (current amplifier) is the only way of improving the above problem so far. Since the circuits now become complicated, when using this modified difference amplifier for high speed circuits, the physical layout must be considered carefully. In the circuits that have been dealt with in this paper, the modified difference amplifier has not been used.","subitem_description_type":"Other"},{"subitem_description":"紀要論文","subitem_description_type":"Other"}]},"item_1617186643794":{"attribute_name":"Publisher","attribute_value_mlt":[{"subitem_1522300295150":"ja","subitem_1522300316516":"琉球大学農家政工学部"}]},"item_1617186702042":{"attribute_name":"Language","attribute_value_mlt":[{"subitem_1551255818386":"jpn"}]},"item_1617186783814":{"attribute_name":"Identifier","attribute_value_mlt":[{"subitem_identifier_type":"HDL","subitem_identifier_uri":"http://hdl.handle.net/20.500.12000/23153"}]},"item_1617186920753":{"attribute_name":"Source Identifier","attribute_value_mlt":[{"subitem_1522646500366":"ISSN","subitem_1522646572813":"0485-7828"},{"subitem_1522646500366":"NCID","subitem_1522646572813":"AN00250570"}]},"item_1617186941041":{"attribute_name":"Source Title","attribute_value_mlt":[{"subitem_1522650068558":"ja","subitem_1522650091861":"琉球大学農家政工学部学術報告"},{"subitem_1522650068558":"en","subitem_1522650091861":"The science bulletin of the Division of Agriculture, Home Economics & Engineering, University of the Ryukyus"}]},"item_1617187056579":{"attribute_name":"Bibliographic Information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1962-12-01","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"9","bibliographicPageEnd":"321","bibliographicPageStart":"308"}]},"item_1617258105262":{"attribute_name":"Resource Type","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_1617265215918":{"attribute_name":"Version Type","attribute_value_mlt":[{"subitem_1522305645492":"NA","subitem_1600292170262":"http://purl.org/coar/version/c_be7fb7dd8ff6fe43"}]},"item_1617605131499":{"attribute_name":"File","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","filename":"No9p308.pdf","mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://u-ryukyu.repo.nii.ac.jp/record/2006859/files/No9p308.pdf"},"version_id":"81bd8ee5-c84b-4361-9b01-07ecc0e5afe7"}]},"item_title":"トランジスタ一差働増幅器を用いた2線式計算機回路","item_type_id":"15","owner":"1","path":["1642837935753","1642838406845"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2012-02-10"},"publish_date":"2012-02-10","publish_status":"0","recid":"2006859","relation_version_is_last":true,"title":["トランジスタ一差働増幅器を用いた2線式計算機回路"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2022-10-31T03:10:24.432417+00:00"}