Details

Autor(en) / Beteiligte

• Orlando, B.
• Hida, R.
• Cuchet, R.
• Audoin, M.
• Viala, B.
• Pellissier-Tanon, D.
• Gagnard, X.
• Ancey, P.

Titel

Low-Resistance Integrated Toroidal Inductor for Power Management

Ist Teil von

• IEEE transactions on magnetics, 2006-10, Vol.42 (10), p.3374-3376

Ort / Verlag

New York, NY: IEEE

Erscheinungsjahr

2006

Quelle

IEEE Xplore

Beschreibungen/Notizen

• 5.6 mm times 5.6 mm integrated toroidal inductors with reduced thickness down to 200 mum have been realized. A high inductance-to-dc resistance ratio have been achieved using a toroidal geometry. The realization features thick Cu winding and a thick laminated Ni 80 Fe 20 core with crossed anisotropy. Impedance measurements have been performed up to 100 MHz with dc bias current applied. As a typical result, we show an inductor with an inductance of 500 nH up to 10 MHz and a dc resistance of 95 mOmega. To the best of our knowledge, this is the highest inductance-to-dc-resistance ratio demonstrated by a fully integrated inductor. This demonstrates the interest of such integrated inductors to replace discrete components in compact low-power modules