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| Presentation | 2016-01-21 09:30 Proposal and verification of bipolar DFQ amplifier Tomoki Watanabe (UEC), Hiroshi Shimada, Yoshinao Mizugaki (UEC/JST)  SCE2015-36 Link to ES Tech. Rep. Archives: SCE2015-36 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | To realize AC voltage standard, researches of frequency modulation (FM) type SFQ-D/A converters have been conducted. We have used a double flux quantum amplifier (DFQA) as a voltage multiplier in the FM-SFQ-D/A converters. The SFQ-D/A converters need to generate bipolar voltage output for application of AC voltage standard. Since the conventional DFQA has different multiplication factors in bipolar output, the conventional DFQA cannot be used for bipolar output of SFQ-D/A converters. In this paper, we propose a bipolar DFQA of bias switching type (BS-BDFQA) and a bipolar DFQA of series connection type (SC-BDFQA). We confirmed that both of the DFQAs conducted bipolar voltage multiplication. We also propose and verify bipolar SFQ-D/A converters comprising a BS-BDFQA and a SC-BDFQA. While the bipolar SFQ-D/A converter comprising the BS-BDFQA generated bipolar voltage output, spike noise was generated when voltage polarity was switched. The bipolar SFQ-D/A converter comprising the SC-BDFQA succeeded to generate bipolar voltage output without spike noise. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Single-flux-quantum / Josephson effect / D/A converter / Bipolar output / Superconducting integrated circuits / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 412, SCE2015-36, pp. 1-6, Jan. 2016. | |
| Paper # | SCE2015-36 | |
| Date of Issue | 2016-01-14 (SCE) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | SCE2015-36 Link to ES Tech. Rep. Archives: SCE2015-36 |
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| Conference Information | |
| Committee | SCE |
| Conference Date | 2016-01-21 - 2016-01-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | SCE |
| Conference Code | 2016-01-SCE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Proposal and verification of bipolar DFQ amplifier |
| Sub Title (in English) | |
| Keyword(1) | Single-flux-quantum |
| Keyword(2) | Josephson effect |
| Keyword(3) | D/A converter |
| Keyword(4) | Bipolar output |
| Keyword(5) | Superconducting integrated circuits |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Tomoki Watanabe |
| 1st Author's Affiliation | The University of Electro-Communications (UEC) |
| 2nd Author's Name | Hiroshi Shimada |
| 2nd Author's Affiliation | The University of Electro-Communications/Japan Science and Technology Agency (UEC/JST) |
| 3rd Author's Name | Yoshinao Mizugaki |
| 3rd Author's Affiliation | The University of Electro-Communications/Japan Science and Technology Agency (UEC/JST) |
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| Speaker | Author-1 |
| Date Time | 2016-01-21 09:30:00 |
| Presentation Time | 25 minutes |
| Registration for | SCE |
| Paper # | SCE2015-36 |
| Volume (vol) | vol.115 |
| Number (no) | no.412 |
| Page | pp.1-6 |
| #Pages | 6 |
| Date of Issue | 2016-01-14 (SCE) |
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