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Class Information
Number: 327/453
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.) > Ac supply > Silicon controlled rectifier (scr)
Description: Subject matter including a four layer, three junction device, which can be triggered into conduction in only one direction.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7259407 |
Isolated HF-control SCR switch |
Aug. 21, 2007 |
| 7038503 |
Driving circuit for electrical nailing gun |
May. 2, 2006 |
| 6552598 |
Semiconductor high voltage electrical energy transmission switching system and method |
Apr. 22, 2003 |
| 6542023 |
AC transfer switch using semiconductor devices |
Apr. 1, 2003 |
| 6542022 |
Voltage pulse analog generator |
Apr. 1, 2003 |
| 6333664 |
Low operating power, high voltage ringing switch circuit |
Dec. 25, 2001 |
| 6054891 |
Solid state relay |
Apr. 25, 2000 |
| 6011420 |
ESD protection apparatus having floating ESD bus and semiconductor structure |
Jan. 4, 2000 |
| 5986495 |
Key switch control device |
Nov. 16, 1999 |
| 5872478 |
SCR firing circuit for high voltage control applications |
Feb. 16, 1999 |
| 5850160 |
Gate drive circuit for an SCR |
Dec. 15, 1998 |
| 5614771 |
Extended high voltage SCR switch |
Mar. 25, 1997 |
| 5138205 |
Synchronized thyristor firing control |
Aug. 11, 1992 |
| 5118963 |
Symmetrical controlled switching circuit |
Jun. 2, 1992 |
| 5111059 |
Power transfer unit for transferring power supplied to a load between power sources responsive to detected SCR gate-cathode voltage |
May. 5, 1992 |
| 4562366 |
In-line solid state time delay device |
Dec. 31, 1985 |
| 4480197 |
Multiple load switching circuit |
Oct. 30, 1984 |
| RE31502 |
In-line energization and de-energization of an external load in series with an external source of electricity in response to externally sensed parameters |
Jan. 17, 1984 |
| 4296296 |
Controllable-duty-cycle power supply for microwave oven magnetron and the like |
Oct. 20, 1981 |
| 4245166 |
Thyristor control circuit |
Jan. 13, 1981 |
| 4238723 |
Power control system |
Dec. 9, 1980 |
| 4220910 |
Raising-pressure delay type electromagnetic pumps |
Sep. 2, 1980 |
| 4122382 |
Load-responsive treater controller |
Oct. 24, 1978 |
| 4117392 |
SCR controller having input pulses mechanically generated by a signal source |
Sep. 26, 1978 |
| 4048522 |
Solid state break-before-make base module and associated contact elements |
Sep. 13, 1977 |
| 4042873 |
Phase locked firing circuit for SCRS, or the like |
Aug. 16, 1977 |
| 4031458 |
A.C. voltage regulator employing thyristor |
Jun. 21, 1977 |
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