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Class Information
Number: 327/531
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Specific identifiable device, circuit, or system > With specific source of supply or bias voltage > Fluctuating or ac source with rectifier or filter
Description: Subject matter wherein the power supply is converted from an alternating or fluctuating input voltage or current to a direct current or voltage via a rectifier circuit or is smoothed or integrated by a filter circuit.










Sub-classes under this class:

Class Number Class Name Patents
327/533 With battery connected across rectifier 9
327/532 With particular filter circuit 48


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
5701098 AC bypass circuit which provides stabilization of high frequency transient noise Dec. 23, 1997
5654664 Input buffer circuit for a semiconductor memory Aug. 5, 1997
5459654 Apparatus for generating positive and negative supply rails from operating motor control circuit Oct. 17, 1995
5434532 Low headroom manufacturable bandgap voltage reference Jul. 18, 1995
5394105 Device for contactless energy and data transmission Feb. 28, 1995
5341047 Level shifter circuit Aug. 23, 1994
5313111 Substrate slew circuit providing reduced electron injection May. 17, 1994
5307006 Optical voltage reference Apr. 26, 1994
5304875 Efficient transistor drive circuit for electrical power converter circuits and the like Apr. 19, 1994
5036229 Low ripple bias voltage generator Jul. 30, 1991
4941080 Full wave rectifier circuit Jul. 10, 1990
4843358 Electrically positionable short-circuits Jun. 27, 1989
4821165 High voltage DC power supply Apr. 11, 1989
4594517 Power down sensor Jun. 10, 1986
4490655 Bi-directional driver system for electrical load Dec. 25, 1984
4489245 D.C. Voltage bias circuit in an integrated circuit Dec. 18, 1984
4481429 Bias supply for A.C. line powered apparatus Nov. 6, 1984
4409496 MOS Device including a substrate bias generating circuit Oct. 11, 1983
4409500 Operational rectifier and bias generator Oct. 11, 1983
4356431 Magnetron energizing circuit Oct. 26, 1982
4268779 Circuit for controlling current flow from an A.C. source to a load May. 19, 1981
4256431 Self-driven forage harvester Mar. 17, 1981
4227257 Power supply circuit for an electronic tuning type receiver with a memory element Oct. 7, 1980
4198660 Supply circuit Apr. 15, 1980
4097768 Rectifier Jun. 27, 1978
4068134 Barrier height voltage reference Jan. 10, 1978
4005370 Power supply means for magnetron Jan. 25, 1977
3940681 Wide amplitude range detecting circuit Feb. 24, 1976

1 2










 
 
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