On-chip Coupled Power Inductor for Two-Phase Switching Power Converter

Konferenz: Intelec 2013 - 35th International Telecommunications Energy Conference, SMART POWER AND EFFICIENCY
13.10.2013 - 17.10.2013 in Hamburg, Deutschland

Tagungsband: Intelec 2013

Seiten: 2Sprache: EnglischTyp: PDF

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Autoren:
Dang, Zhigang; Qahouq, Jaber Abu (The University of Alabama, Tuscaloosa, AL 35487, USA)

Inhalt:
Power inductor is one of the largest and most weighted components in power converters. On-chip power inductor with high saturation current and a relatively large inductance value is desired to be with a smaller size (footprint) [1-5]. Coupled power inductor (CPI) has many applications, and one of them is in multi-phase power converters [6-10]. One of the main advantages of the CPI used in DC-DC power converters is the ability to obtain smaller equivalent transient inductance (advantageous for lower output voltage dynamic deviation under transients) with a larger equivalent steady-state inductance (advantageous for smaller steady-state output voltage ripple and higher power efficiency). Inversely coupled power inductor was employed in the multi-phase switching power converters to improve both the steady-state and transient performances [8-10].