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Class Information
Number: 327/476
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.) > Triac
Description: Subject matter including a bidirectional rectifier (essentially two SCRs in parallel) that functions as an electronically controlled switch and having an npnpn structure that can be triggered into either forward or reverse conduction by a pulse applied to its gate electrode.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7259407 |
Isolated HF-control SCR switch |
Aug. 21, 2007 |
| 7151402 |
Triac control circuit |
Dec. 19, 2006 |
| 5914628 |
Circuit for controlling a triac at the voltage zero |
Jun. 22, 1999 |
| 5162682 |
Solid state relay employing triacs and plurality of snubber circuits |
Nov. 10, 1992 |
| 5099157 |
Master/slave circuit employing triacs |
Mar. 24, 1992 |
| 4977431 |
Fixing apparatus and method of controlling temperature of the same |
Dec. 11, 1990 |
| 4914327 |
Circuit arrangement for controlling the alternating current through a load |
Apr. 3, 1990 |
| 4845391 |
Switching circuits performing thyristor and triac functions |
Jul. 4, 1989 |
| 4745311 |
Solid-state relay |
May. 17, 1988 |
| 4737671 |
Circuit for detecting the current flow of a triac |
Apr. 12, 1988 |
| 4611128 |
Triac having a multilayer semiconductor body |
Sep. 9, 1986 |
| 4594515 |
Switching circuit |
Jun. 10, 1986 |
| 4529888 |
High voltage solid state relay |
Jul. 16, 1985 |
| 4518867 |
Self-adapting process and device for triggering a triac |
May. 21, 1985 |
| 4504742 |
Electrical switching device |
Mar. 12, 1985 |
| 4423765 |
Apparatus for reducing heater and air conditioning energy consumption |
Jan. 3, 1984 |
| 4360743 |
Solid state control device for gradually turning on and off an electrical load |
Nov. 23, 1982 |
| 4355242 |
Voltage regulating system |
Oct. 19, 1982 |
| 4346308 |
DC Switching circuit with current through resistive load below holding current of triac strings to charge capacitive load to predetermined potentials |
Aug. 24, 1982 |
| 4276486 |
Two terminal power control switch with triac current powered control means |
Jun. 30, 1981 |
| 4258276 |
Switching circuit for connecting an AC source to a load |
Mar. 24, 1981 |
| 4239987 |
Switching circuit for controlling various appliances |
Dec. 16, 1980 |
| 4239986 |
Power control arrangement and control circuit especially suitable for use therewith |
Dec. 16, 1980 |
| 4221978 |
Electronic time switch |
Sep. 9, 1980 |
| RE30296 |
Digital electronic dimmer |
Jun. 3, 1980 |
| 4176288 |
Zero voltage switching solid state relay |
Nov. 27, 1979 |
| 4155015 |
Light switch |
May. 15, 1979 |
| 4152608 |
Momentary contact light switch |
May. 1, 1979 |
| 4129791 |
Solid state switching circuit |
Dec. 12, 1978 |
| 4117349 |
Solid state alternating current switching device |
Sep. 26, 1978 |
| 4087702 |
Digital electronic dimmer |
May. 2, 1978 |
| 4075510 |
Thyristor voltage switching circuits |
Feb. 21, 1978 |
| 4052624 |
Ramp and pedestal control circuit |
Oct. 4, 1977 |
| 4048522 |
Solid state break-before-make base module and associated contact elements |
Sep. 13, 1977 |
| 4047058 |
Alternating controller comprising pair of mutually exclusively-operated timers |
Sep. 6, 1977 |
| 3992638 |
Synchronous switch |
Nov. 16, 1976 |
| 3956644 |
Integral cycle, precise zero voltage switch |
May. 11, 1976 |
| 3955104 |
Synchronous control device for a static relay by a high frequency signal |
May. 4, 1976 |
| 3950693 |
Ignition apparatus for thyristors |
Apr. 13, 1976 |
| 3946252 |
Integral cycle power controller |
Mar. 23, 1976 |
| 3940634 |
Solid state AC power relay |
Feb. 24, 1976 |
| 3937989 |
Temperature discrimination apparatus |
Feb. 10, 1976 |
| 3935482 |
Electronic switching circuit with zero voltage switching |
Jan. 27, 1976 |
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