A bipolar, high precision, low ripple power supply

Conference · Mon Aug 01 04:00:00 EDT 1983 · IEEE Trans. Nucl. Sci.; (United States)

OSTI ID:5444493

Pfeffer, H; Yarema, R J

A + or - 600 V, + or - 50 Amp high precision SCR power supply has been developed for use in the Energy Doubler Correction system. The bipolar output is accomplished by means of a dual converter with circulating current for smooth zero-crossing current transitions. Absolute accuracy better than + or - .025% is achieved with a high precision transductor, current reference, and other high quality components. Stability is better than 2.5 ppm//sup 0/C and voltage ripple is less than 30 mV peak to peak. Low ripple is achieved through the use of bipolar series-pass transistor bank. The dual converter (plus a passive filter) acts as a pre-regulator for the transistor bank, which has a dynamic range of 30 volts. Ripple attenuation of the transistor bank is a minimum of 60 dB from DC to 2 kHz. Microvolt level noise and pickup in the power supply regulator ultimately set the ripple level in the power supply output. A special ''active ground'' circuit is included to filter the common mode ripple which is inherent in SCR supplies.

• Research Organization: Fermi Nat.'l Accelerator Lab., P.O. Box 500, Batavia, IL 60510
• OSTI ID: 5444493
• Report Number(s): CONF-830311-
• Conference Information: Journal Name: IEEE Trans. Nucl. Sci.; (United States) Journal Volume: NS-30:4
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
ACCELERATORS
CURRENTS
CYCLIC ACCELERATORS
ELECTRONIC CIRCUITS
ELECTRONIC EQUIPMENT
ENERGY RANGE
EQUIPMENT
EV RANGE
EV RANGE 100-1000
FERMILAB ACCELERATOR
NOISE
POWER CONDITIONING CIRCUITS
POWER SUPPLIES
SEMICONDUCTOR DEVICES
STABILITY
SYNCHROTRONS
TRANSISTORS
VOLTAGE REGULATORS