Title :
Precision power supply control module
Author :
Dobeck, N. ; Lamora, B. ; Larkin, J. ; O´Sullivan, M. ; Sharp, C.
Author_Institution :
Continuous Electron Beam Accel. Facility, Newport News, VA, USA
Abstract :
A temperature-stabilized, digital input circuit module using surface mount technology has been developed for use as the precision control element in a 10-A bipolar trim magnet regulator. Regulators using this module have shown a stability of 20 p.p.m. over 8h. This circuit module combines the functions of a current measuring shunt, serial digital-to-analog converter (DAC), precision voltage reference, high-gain error amplifier, and readback buffer amplifier. Loop gain and compensation are done externally to the module. Use of the controller can be extended to any size power supply by using an externally generated feedback signal rather than relying on the internal shunt and preamplifier.<>
Keywords :
electron accelerators; linear accelerators; nuclear electronics; particle accelerator accessories; power supplies to apparatus; 10 A; CEBAF; bipolar trim magnet regulator; current measuring shunt; digital input circuit module; externally generated feedback signal; high-gain error amplifier; internal shunt; preamplifier; precision control element; precision voltage reference; readback buffer amplifier; serial digital-to-analog converter; surface mount technology; Circuit stability; Current measurement; Digital-analog conversion; Magnetic circuits; Power supplies; Regulators; Size control; Surface-mount technology; Temperature control; Voltage;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164495
