High-Currrent Regulated Supply, Combining Transistors and Magnetic Amplifiers, for the Oak Ridge Isochronous Cyclotron

Journal Article · Sun Oct 01 04:00:00 EDT 1961 · IRE Transactions on Nuclear Science

DOI:https://doi.org/10.1109/TNS2.1961.4315850· OSTI ID:4833455

Behr, B. C.; Lingar, W. E.; White, W. H.

Circuits are shown and design criteria given for a current-regulated power supply which is typical of l9 supplies of four types built for the Oak Ridge Isochronous Cyclotron. These supplies range from 6.25 to 34 kw with current ratings from 250 to l200 amp. Current regulation and ripple of l part in 10⁴ are obtained by separate ac and dc feedback circuits driving a bank of parallel power tran-sistors in series with the load. The dissipation of the transistor bank is limited by a third feedback circuit, which drives a saturable reactor in the power supply to maintain a constant voltage across the transistor bank. The output can be varied iron zero to maximum by setting a reference potentiometer which is supplied by a Zener reference with a low temperature coefficient. Plug-in circuits in the feedback networks allow versatility: any regulator can be used with a wide variety of magnets of varying time constants. A modular transistor bank simplifies construction and maintenance.

• Research Organization: Oak Ridge National Lab., Tenn.
• Sponsoring Organization: USDOE
• NSA Number: NSA-16-001976
• OSTI ID: 4833455
• Journal Information: IRE Transactions on Nuclear Science, Journal Name: IRE Transactions on Nuclear Science Journal Issue: 4 Vol. 8; ISSN 0096-2015
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

AMPLIFIERS
CIRCUITS
CONTROL ELEMENTS
CONTROL SYSTEMS
CYCLOTRONS
ELECTRIC POTENTIAL
ELECTRICITY
ENGINEERING AND EQUIPMENT
MAGNETIC FIELDS
MAGNETS
POWER
REACTORS
TEMPERATURE
TRANSISTORS