Miscellaneous active electrical nonlinear devices – circuits – and – Gating – Utilizing three or more electrode solid-state device
Reexamination Certificate
2011-07-19
2011-07-19
Wells, Kenneth B. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Gating
Utilizing three or more electrode solid-state device
C327S440000, C327S474000
Reexamination Certificate
active
07982528
ABSTRACT:
An embodiment of a power device having a first current-conduction terminal, a second current-conduction terminal, a control terminal receiving, in use, a control voltage of the power device, and a thyristor device and a first insulated-gate switch device connected in series between the first and the second conduction terminals; the first insulated-gate switch device has a gate terminal connected to the control terminal, and the thyristor device has a base terminal. The power device is further provided with: a second insulated-gate switch device, connected between the first current-conduction terminal and the base terminal of the thyristor device, and having a respective gate terminal connected to the control terminal; and a Zener diode, connected between the base terminal of the thyristor device and the second current-conduction terminal so as to enable extraction of current from the base terminal in a given operating condition.
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International Search Report for International Patent Application Serial No. PCT/IT2006/000372; European Patent Office, Mar. 27, 2007.
Enea Vincenzo
Ronsisvalle Cesare
Graybeal Jackson LLP
Jablonski Kevin D.
Jorgenson Lisa K.
STMicroelectronics S.r.l.
Wells Kenneth B.
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