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Class Information
Number: 327/439
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.) > Bipolar transistor circuit configuring scr device
Description: Subject matter wherein a circuit built with bipolar transistors performs the same function as a silicon controlled rectifier.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8420454 Three-terminal power device with high switching speed and manufacturing process Apr. 16, 2013
7982528 Three-terminal power device with high switching speed and manufacturing process Jul. 19, 2011
7911746 GFCI with self-test and remote annunciation capabilities Mar. 22, 2011
7561408 HF-controlled SCR-type switch Jul. 14, 2009
7259407 Isolated HF-control SCR switch Aug. 21, 2007
6911830 Diesel engine lubricating oil contaminant sensor method Jun. 28, 2005
6563724 Apparatus and method for turning off BJT used as synchronous rectifier May. 13, 2003
6445561 Circuit arrangement, in particular for triggering an ignition end stage Sep. 3, 2002
6323718 Normally-on bidirectional switch Nov. 27, 2001
6232822 Semiconductor device including a bipolar transistor biased to produce a negative base current by the impact ionization mechanism May. 15, 2001
6188267 Normally conducting dual thyristor Feb. 13, 2001
6172552 FET device for use in solid-state relay Jan. 9, 2001
RE36998 Circuit for limiting the output voltage of a power transistor Dec. 26, 2000
6034561 Integrated inductive load snubbing device Mar. 7, 2000
6031405 ESD protection circuit immune to latch-up during normal operation Feb. 29, 2000
6011424 Integrated birectional transistor switch for large signal voltages Jan. 4, 2000
6011420 ESD protection apparatus having floating ESD bus and semiconductor structure Jan. 4, 2000
5986290 Silicon controlled rectifier with reduced substrate current Nov. 16, 1999
5929368 Hybrid electronic detonator delay circuit assembly Jul. 27, 1999
5847593 Voltage discharge circuit for a photovoltaic power source Dec. 8, 1998
5828244 Driving circuit and method for driving a MOS transistor with delayed activation Oct. 27, 1998
5703520 Integrated inductive load snubbing device using a multi-collector transistor Dec. 30, 1997
5614771 Extended high voltage SCR switch Mar. 25, 1997
5606278 Circuit for limiting the output voltage of a power transistor Feb. 25, 1997
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
5218249 High speed, low forward voltage drop, SCR Jun. 8, 1993
5159204 Structure and method for preventing latch-up in integrated circuits Oct. 27, 1992
5086242 Fast turn-off of thyristor structure Feb. 4, 1992
5006736 Control circuit for rapid gate discharge Apr. 9, 1991
4956570 Pilot circuit with integrated circuit with preset firing delay for MOS power transistors Sep. 11, 1990
4945266 Composite semiconductor device Jul. 31, 1990
4740723 Semiconductor switch Apr. 26, 1988
4698655 Overvoltage and overtemperature protection circuit Oct. 6, 1987
4678933 Solid state relay for aerospace applications Jul. 7, 1987
4665316 Photovoltaic relay switch May. 12, 1987
4665459 Method and circuit for dissipating stored inductive energy May. 12, 1987
4654543 Thyristor with "on" protective circuit and darlington output stage Mar. 31, 1987
4614897 Switching circuit Sep. 30, 1986
4551643 Power switching circuitry Nov. 5, 1985
4530023 Solid state interrupt circuit Jul. 16, 1985
4270101 Relaxation oscillator having switched current source May. 26, 1981
4267467 Timer circuit May. 12, 1981
4223281 SCR Relaxation oscillator with current amplifier in its gate circuit Sep. 16, 1980
4223280 Relaxation oscillator including an SCR and having switch means for interrupting current flow therethrough Sep. 16, 1980
4188548 Semiconductor switching circuit Feb. 12, 1980
4129785 Solid state switch Dec. 12, 1978
4125787 Semiconductor switch circuit Nov. 14, 1978
4112315 Semiconductor switch circuit Sep. 5, 1978
4047055 Line control unit for teleprinters Sep. 6, 1977
4041332 Semiconductor switch device Aug. 9, 1977

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