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Class Information
Number: 327/590
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Specific identifiable device, circuit, or system > With particular feedback
Description: Subject matter wherein energy is transferred from the output of the circuit device to an input thereof.

Patents under this class:

Patent Number Title Of Patent Date Issued
8610488 3X input voltage tolerant device and circuit Dec. 17, 2013
8487696 Modularized three-dimensional capacitor array Jul. 16, 2013
8163527 Subsystems and methods for use in patch clamp systems Apr. 24, 2012
8094809 Frame-based level feedback calibration system for sample-based predictive clipping Jan. 10, 2012
7439792 High voltage generation circuit and semiconductor device having the same Oct. 21, 2008
7282986 Negative voltage generator circuit Oct. 16, 2007
7221131 Control circuit for DC-DC converter in semiconductor integrated circuit device May. 22, 2007
7187226 Anti-cross conduction drive control circuit and method Mar. 6, 2007
7157962 Charge pump output device with leakage cancellation Jan. 2, 2007
7123085 Rail-to-rail charge pump with replica circuitry Oct. 17, 2006
7053699 Current output stages May. 30, 2006
7034607 Switching constant-current power device Apr. 25, 2006
6943627 Calibration of an adaptive signal conditioning system Sep. 13, 2005
6731164 Capacitor current multiplier capacitive feedback circuit May. 4, 2004
6452436 Apparatus and method for managing automatic transitions between multiple feedback paths Sep. 17, 2002
5999040 Voltage booster circuit with controlled number of stages Dec. 7, 1999
5430405 Control circuit for converters operating in the discontinuous mode Jul. 4, 1995
5264804 Lowpass filter with improved D.C. offset performance Nov. 23, 1993
5051628 Integrated filter circuit Sep. 24, 1991
5045713 Multi-feedback circuit apparatus Sep. 3, 1991
4755693 ECL latch circuit insensitive to alpha ray disturbances Jul. 5, 1988
4636053 Distance detecting device Jan. 13, 1987
4451793 Control system May. 29, 1984
4441040 Integrable semiconductor circuit with a negatively fed-back, non-inverting operational amplifier Apr. 3, 1984
4398104 Low drift tuning circuit Aug. 9, 1983
4323797 Reciprocal current circuit Apr. 6, 1982
4243918 Signal integrator with time constant controlled by differentiating feedback Jan. 6, 1981
4011466 Dynamic filter Mar. 8, 1977
4000471 TWT grid circuit utilizing feedback Dec. 28, 1976
3979684 Feedback filter system Sep. 7, 1976
3947704 Low resistance microcurrent regulated current source Mar. 30, 1976

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