Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Utilizing three or more electrode solid-state device
Reexamination Certificate
2005-12-06
2005-12-06
Gallahan, Timothy P. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Gating
Utilizing three or more electrode solid-state device
C327S427000, C327S380000, C327S381000
Reexamination Certificate
active
06972611
ABSTRACT:
The invention relates to a comprehensive control method for switch on and off processes of power semiconductor switches (S1–S4). In a switching phase A the collector current transient dic/dt is controlled in order to safeguard a controlled clear-off of the edge zones of a serial freewheeling diode (Ds). In a switching phase B the collector voltage gradient dvCE/dt is controlled in order to specifically switch the power semiconductor switch (S1–S4), thereby establishing a closed control loop by returning primary and optionally secondary condition variables (vc, dvc/dt, ic, dic/dt, iG, vG, diG/dt, dvG/dt) of the power semiconductor switch (S1–S4). The embodiments relate inter alia to prephases A0, B0for achieving the controllability of the power semiconductor switch (S1–S4), a vCEcontrol by defining a collector voltage set-point function vCEref(t), detection of a transfer time (t1, t2) of switching phases A and B, a variable controller amplification (kp(t)), an upper and lower limit (SM, Sm) in accordance with an ideal gate current gradient (iG(t)) and a tolerance band control for the collector voltage (vCE). The invention further relates to a gate driver (GT), preferably with partitioned amplifier stages (7a, 7b) for carrying out the inventive method, and to a power semiconductor switch (S1–S4) and a series connection of power semiconductor switches (S1–S4) that are provided with such a gate driver (GT).
REFERENCES:
patent: 4894568 (1990-01-01), Pavlin
patent: 5566063 (1996-10-01), Gerster et al.
patent: 5808504 (1998-09-01), Chikai et al.
patent: 5877646 (1999-03-01), Jorg
patent: 6111453 (2000-08-01), Uchida et al.
patent: 6127746 (2000-10-01), Clemente
patent: 6271709 (2001-08-01), Kimura et al.
patent: 6285235 (2001-09-01), Ichikawa et al.
patent: 6323717 (2001-11-01), Omura et al.
patent: 6424187 (2002-07-01), Takahashi et al.
patent: 6633195 (2003-10-01), Baudelot et al.
patent: 197 44 848 (1999-04-01), None
patent: WO 97/19110 (1997-05-01), None
patent: WO 97/43301 (1997-11-01), None
patent: WO 99/28745 (1999-06-01), None
patent: WO 00/23564 (2000-04-01), None
patent: WO 01/11087 (2001-02-01), None
Rüedi H.:Intelligent Interfaces Between Power and Control: Gate Drivers for IGBTs, Components, vol. XXXI, No. 3, 1996, pp. 8-11, XP002162535.
Rüedi H.:Dynamic Gate Controller(DGC) —A New IGBT Gate Unit for High Current/High Voltage IGBT Modules, International Power Conversion—Jun. 1995 Proceedings, Jun. 1995, pp. 241-249, XP000991349, Nürnberg, Germany.
Crystal,Science, 270, 404-410 (1995).
Sewalt et al.,Mol. Cell. Biol., 19(1), 777-787 (Jan. 1, 1999).
Jan Thalheim: “Control Strategies for Balancing of Series and Parallel Connected IGBT/Diode Modules”, Hartung-Gorre Verlag.
Konstanz, Series in Microelectronic, vol. 139, 2004, pp. v-xvii and 1-187.
Musumecci et al.: “A New Adaptive Driving Technique for High Current Gate Controlled Devices”, IEEE 0-7803-1456-5/94, pp. 480-486.
S. Igarashi et al.: “An Active Control Gate Drive Circuit for IGBTs to Realize Low-noise and Snubberless System”, IEEE 0-7803-3993-2/97, pp. 69-72.
Hwang-Geol Lee et al.: “An Improved Gate Control Scheme for Snubberless Operation of High Power IGBTs”, IEEE 0-7803-4067-1/97, pp. 975-982.
CT Concept Technologie AG
Gallahan Timothy P.
Kenyon & Kenyon
Nguyen Hai L.
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