Gradient power supply

Details Gradient power supply Gradient power supply

1982-05-10

1984-03-13

Wong, Peter S.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

323274, 323276, 323284, 323285, 323350, G05F 144

Patent

active

044370539

ABSTRACT:
A power supply particularly suited for driving coils in a magnetic nuclear resonance device, or scanner, is described. Bipolar switches driven by field-effect devices are used to couple the coil to a high potential when a rapid current change is required, control devices also comprises bipolar transistors driven by field-effect transistors are used to control the current through the coil in steady state conditions.

REFERENCES:
patent: 3745477 (1973-07-01), Freeborn
patent: 3770986 (1973-11-01), Drehle
patent: 3896367 (1975-07-01), Frantz
patent: 3914617 (1975-10-01), Corbel
patent: 4290007 (1981-09-01), Fisher et al.
W. E. Schillinger, "Fast Inductive Load Current Switch Circuit", IBM Technical Disclosure Bulletin, vol. 24, No. 1A, Jun. 1981, pp. 199-200.

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