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Monolithic RC-snubber for power electronic applications

Monolithischer RC-Snubber für Leistungselektronische Anwendungen
 
: Dorp, Joachim vom; Berberich, Sven E.; Erlbacher, Tobias; Bauer, Anton J.; Ryssel, Heiner; Frey, Lothar

:
Postprint urn:nbn:de:0011-n-1954431 (731 KByte PDF)
MD5 Fingerprint: 8118bd4fe84a93cde4942ebd7a29a1c8
© 2011 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Erstellt am: 23.2.2012


Institute of Electrical and Electronics Engineers -IEEE-:
IEEE Ninth International Conference on Power Electronics and Drive Systems, PEDS 2011 : Held in Singapore on 5 - 8 December 2011
New York, NY: IEEE, 2011
ISBN: 978-1-61284-999-7 (Print)
ISBN: 978-1-4577-0000-2 (Online)
S.11-14
International Conference on Power Electronics and Drive Systems (PEDS) <9, 2011, Singapore>
Englisch
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IISB ()
capacitance; capacitor; resistance; resistor; silicon; snubber; switch; capacitance values; device structures; electrical parameter; electromagnetic noise; low temperature coefficients; low-leakage current; over-voltages; power electronic applications; process technology; state of the art; typical application

Abstract
In this work, we present a monolithic RC-snubber for power electronic applications that outperforms state of the art RC-snubbers in terms of characteristic electrical parameters. The principle device structure as well as the process technology is presented. The outstanding properties of the device are a high capacitance per area (1.5 nF/mm2), a low temperature coefficient of the capacitance value (85 ppm/°C) and a low leakage current (<1 nA) for voltages up to 250 V. Characteristic electrical parameters of the single device and in a typical application are shown. In comparison to a SMD snubber, the monolithic RC-snubber shows a significant reduction of overvoltage during switching and enhanced electromagnetic noise suppression.

: http://publica.fraunhofer.de/dokumente/N-195443.html