Subharmonic generators and error detection by using the quantum flux parametron (QFP)

Conference · Fri Mar 01 04:00:00 EST 1991 · IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States)

OSTI ID:6092659

Casas, J; Kamikawai, R; Harada, Y; Miyamoto, N; Nakane, H; Goto, E ^[1]

---

1. Research Development Corp. of Japan, I-280 Higashi Koigakubo, Kokubunji, Tokyo 185 (JP)

Several subharmonic generators are presented in this paper, the larger of which consists of four shift registers connected serially around a loop. Low frequency operation was demonstrated for four different devices employing one, two, three and four shift registers respectively. The circuits presented in this paper employ a standing wave for powering the QFPs, guaranteeing that all the QFPs are perfectly synchronized and that no power is consumed in the clock lines. If all the QFPs along a clock line are to be powered within a 20% margin, the maximum operating frequency is limited by the clock lines length. concerning the high speed operation, a frequency divide by two circuit was able to work at a clock frequency of 8 GHz. For checking that no error occurs during the operation of the QFPs a four bit shift register was employed.

• OSTI ID: 6092659
• Report Number(s): CONF-900944--
• Conference Information: Journal Name: IEEE Transactions on Magnetics (Institute of Electrical and Electronics Engineers); (United States) Journal Volume: 27:2
• Country of Publication: United States
• Language: English

Related Subjects

665411 -- Basic Superconductivity Studies-- (1992-)
665412* -- Superconducting Devices-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ARRAY PROCESSORS
ELECTRIC CONDUCTIVITY
ELECTRIC GENERATORS
ELECTRICAL PROPERTIES
ERRORS
FLUX QUANTIZATION
PERFORMANCE
PHASE SHIFT
PHYSICAL PROPERTIES
SUPERCONDUCTING DEVICES
SUPERCONDUCTING GENERATORS
SUPERCONDUCTIVITY
SYNCHRONIZATION