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Article: Careful inductor selection optimizes dc/dc converters. (tutorial)
- Article from:
- EDN
- Article date:
- June 6, 1991
- Author:
CopyrightCOPYRIGHT 1991 Reed Business Information, Inc. (US). This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Battery-operated systems and distributed-power-system concepts have greatly increased the use of low-power dc/dc converters and their associated magnetic components. Designers typically use transformers in dc/dc converter designs. However, unless transformer isolation is required, an inductor makes sense for a low-power switching-converter applications. This is especially true if the circuit must be more efficient than a capacitor-based charge-pump circuit. Compared with transformers, inductors are easier to specify, procure, and mount. Single-transistor-driver schemes are more effective with inductors than with transformers. Best of all, there's a variety of inductor ...