Operating conditions for a pulse-quantized AC and DC bipolar voltage source

Authors
Benz, SP Burroughs, CJ Harvey, TE Hamilton, CA
Citation
Sp. Benz et al., Operating conditions for a pulse-quantized AC and DC bipolar voltage source, IEEE APPL S, 9(2), 1999, pp. 3306-3309
Citations number
12
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
ISSN journal
10518223 → ACNP
Volume
9
Issue
2
Year of publication
1999
Part
3
Pages
3306 - 3309
Database
ISI
SICI code
1051-8223(199906)9:2<3306:OCFAPA>2.0.ZU;2-K
Abstract
We have developed an accurate sc and de bipolar voltage source based on the quantized pulses of Josephson junctions. A factor-of-6 increase in output voltage over previous unipolar waveforms is achieved by generating bipolar waveforms where arrays of junctions are biased with both a broadband two-le vel digital code and a sine wave We use simulations to determine the optimu m operating conditions as a function of frequency and as a function of the phase difference between the digital code and the sinusoidal drive.