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Class Information
Number: 327/438
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Gating (i.e., switching input to output) > Utilizing three or more electrode solid-state device > Four or more layer device (e.g., thyristor, etc.)
Description: Subject matter including a semiconductor device with four or more alternating layers of p-type and n-type material, (e.g., pnpn, etc.)

Sub-classes under this class:

Class Number Class Name Patents
327/447 Ac supply 33
327/439 Bipolar transistor circuit configuring scr device 53
327/444 Complex wave supply 3
327/465 Dc supply 33
327/440 Gto (i.e., gate turnoff) 114
327/476 Triac 44

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8653693 Integrated exciter-igniter Feb. 18, 2014
8461906 Cell-based integrated circuit and a method of operating a thyristor circuit in a standard cell of a cell-based integrated circuit Jun. 11, 2013
8377756 Silicon-carbide MOSFET cell structure and method for forming same Feb. 19, 2013
7888986 Method of controlling a rectifying bridge in a diode mode and a circuit for the control Feb. 15, 2011
7830151 Electronic voltage supply method and apparatus Nov. 9, 2010
7564072 Semiconductor device having junction termination extension Jul. 21, 2009
7525394 Ultra low power CMOS oscillator for low frequency clock generation Apr. 28, 2009
7352233 Efficient thyristor-type power switches Apr. 1, 2008
7259407 Isolated HF-control SCR switch Aug. 21, 2007
6952297 Method of differentially connecting photonic devices Oct. 4, 2005
RE38734 Semiconductor switching apparatus and method of controlling a semiconductor switching element May. 17, 2005
6710639 Emitter turn-off thyristors and their drive circuits Mar. 23, 2004
6624684 Compact high voltage solid state switch Sep. 23, 2003
6462605 Low-jitter high-power thyristor array pulse driver and generator Oct. 8, 2002
6426666 Diode-assisted gate turn-off thyristor Jul. 30, 2002
6417719 Apparatus and method for isolating a trigger circuit of a silicon-controlled rectifier Jul. 9, 2002
6339231 Gate commutated turn-off thyristor module Jan. 15, 2002
6323718 Normally-on bidirectional switch Nov. 27, 2001
6268754 Gate driving circuit for power semiconductor switch Jul. 31, 2001
6218881 Semiconductor integrated circuit device Apr. 17, 2001
6188267 Normally conducting dual thyristor Feb. 13, 2001
6163200 Gate driver device for GTO thyristor Dec. 19, 2000
6160439 Current feed control circuit and electronic appliance using the same Dec. 12, 2000
6054891 Solid state relay Apr. 25, 2000
6046614 Drive circuit having a power recovery system Apr. 4, 2000
6028471 Switching device with parallel switch Feb. 22, 2000
5986290 Silicon controlled rectifier with reduced substrate current Nov. 16, 1999
5892391 TRIAC/SCR proportional control circuit Apr. 6, 1999
5883500 Three-state monolithic static switch Mar. 16, 1999
5852381 Turbine engine ignition exciter circuit including low voltage lockout control Dec. 22, 1998
5850160 Gate drive circuit for an SCR Dec. 15, 1998
5777506 Semiconductor switching apparatus and method of controlling a semiconductor switching element Jul. 7, 1998
5760498 Power drawing circuit for two-wire switching unit Jun. 2, 1998
5734289 Circuit arrangement for controlling a triac Mar. 31, 1998
5723997 Interface circuit of an electronic flash unit Mar. 3, 1998
5699008 Thyristor controllable by logic signals Dec. 16, 1997
5654661 Drive circuit for SCR device Aug. 5, 1997
5629571 Thyristor load detector May. 13, 1997
5614771 Extended high voltage SCR switch Mar. 25, 1997
5596292 A.C. switch triggered at a predetermined half-period Jan. 21, 1997
5592118 Ignition exciter circuit with thyristors having high di/dt and high voltage blockage Jan. 7, 1997
5585758 Current source gate drive circuit for simultaneous firing of thyristors Dec. 17, 1996
5561393 Control device of semiconductor power device Oct. 1, 1996
5534735 Photo SI thyristor driving circuit and its protection circuit Jul. 9, 1996
5532638 Superconducting energy storage apparatus Jul. 2, 1996
5528180 Steerable pulse phase controller Jun. 18, 1996
5515231 Thyristor valve arrester and DC power transmission thyristor valve using the same May. 7, 1996
5504451 Gated thyristor and process for its simultaneous fabrication with high- and low-voltage semiconductor devices, integrated circuit containing the same, systems and methods. Apr. 2, 1996
5477556 High power laser diode driver utilizing a monolithic semiconductor device with a thyristor-like structured switch Dec. 19, 1995
5467049 Solid-state switch Nov. 14, 1995

1 2 3

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