Circuit improvements for a voltage multiplier

被引：23

作者：

Semenov, VK ^{[1
]}

Polyakov, YA ^{[1
]}

机构：

[1] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2001年 / 11卷 / 01期

关键词：

AC voltage standard; flux amplifier; quantum metrology; programmable voltage standard;

D O I：

10.1109/77.919404

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A voltage (or flux) multiplier is a device which multiplies applied SFQ pulses. Due to the quantum nature of an SFQ pulse the device can be used as a voltage (or flux) amplifier with a fundamentally accurate (integer) gain. Earlier we showed that the device can be used for improvement of de and sc voltage standards. Recently we have found that a long voltage multiplier can display complex dynamic behavior, which can lead to undesirable collective oscillations. This report is devoted to theoretical optimization and experimental investigation of long voltage multipliers connected in series for de current. Experimentally we have obtained accurate current steps with about 0.1 V voltage drop for a 5 mm x 5 mm chip fabricated in Nb technology and tested at 4 K.

引用

页码：550 / 553

页数：4

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