Citation link:
Authors:
Nikolova, Boyanka Marinova; Николова, Боянка Маринова; Nikolov, Georgi; Николов, Георги
Title:
Investigation and design of high current sources for B-H loop measurements
Date of Issue:
2008
Is Part of:
Proceedings of the Technical University – Sofia, 58(2), 2008, pp. 87-92
Publisher:
Технически университет - София
Identifiers:
1311-0829 [issn]
Type:
Article
Language:
eng
Subject:
B-H loop measurement, ferrite toroidal cores, high current source, inductive load, SPICE simulation.
Abstract:
Presented paper describes investigation and design approach for voltage controlled high current sources. The designed circuits are proposed for development of measurement system for B-H magnetic hysteresis analysis. Using the presented circuits and applying the concepts of virtual instrumentation, the laboratory experiments for investigation of ferrite torroids’ parameters can be improved. In presented investigation two basic forms of voltage controlled current source using power operational amplifier are selected. The design process is accomplished using electronic design automation environments. Applying modern simulation technique, inductive load to test frequency transfer function is derived and presented graphically. Such design approach give opportunity to significantly simplify the design process, facilitate prototyping and reduce time-to-market in order to produce low-cost measurement systems or sensor platforms with fair metrological performances.
Description:
Reviewer prof. Marin Marinov. - Formulas, diagr., schemes - References, pp. 92
