A multi-channel corrector magnet controller

Author

Leyh, G.E. ; Donaldson, A.R. ; Jackson, L.T.

Author_Institution

Stanford Linear Accel. Center, Stanford Univ., CA, USA

Volume

3

fYear

1995

fDate

1-5 May 1995

Firstpage

1976

Abstract

Approximately 1000 individual X-Y corrector magnets will be installed on the PEP-II rings, arcs, and injector lines. Each magnet will require a bi-polar current of up to 12 A, with a 24 hour stability of better than 0.1%. A 16 channel, modular power supply design has been developed to meet this requirement, with emphasis placed on reliability, repair time, and installed cost per channel. This design, which is based on a 6U Eurocard crate architecture, has 16 slots for individual drive modules, plus a 17th slot for crate diagnostics and interface to the control system. The crate is air cooled. Each drive module consists of an H-Bridge MOSFET switching array, input and output filter networks, two isolated precision current sensing elements (feedback and monitor), and an error amplifier, plus extensive fault detection and current limiting circuitry. Technical specifications, diagrams, and test results are presented

Keywords

accelerator control systems; accelerator magnets; electric current control; electron accelerators; power MOSFET; power supplies to apparatus; storage rings; 12 A; 6U Eurocard crate architecture; H-Bridge MOSFET switching array; PEP-II; bipolar current; control system interface; corrector magnet; crate diagnostics; current limiting circuitry; drive modules; error amplifier; fault detection circuitry; input filter networks; installed cost per channel; modular power supply; multi-channel corrector magnet controller; output filter networks; reliability; repair time; Control systems; Costs; Filters; MOSFET circuits; Monitoring; Output feedback; Power supplies; Power system reliability; Stability; Switching circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1995., Proceedings of the 1995

Conference_Location

Dallas, TX

Print_ISBN

0-7803-2934-1

Type

conf

DOI

10.1109/PAC.1995.505426

Filename

505426