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Class Information
Number: 327/328
Name: Miscellaneous active electrical nonlinear devices, circuits, and systems > Signal converting, shaping, or generating > Amplitude control > By limiting, clipping, or clamping > Using only transistor active elements > Field-effect type device
Description: Subject matter which includes a unipolar transistor in which current carriers are injected at a source terminal and pass to a drain terminal through a channel of semiconductor material whose conductivity depends largely on an electrical field applied to the semiconductor from a control electrode (gate).

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8492925 Apparatus for charging an external capacitor Jul. 23, 2013
8493122 Voltage clamping circuit Jul. 23, 2013
8427222 Current driving circuit Apr. 23, 2013
8390222 Brushless motor driving circuit Mar. 5, 2013
8265569 Apparatus and method for transmit/receive switching Sep. 11, 2012
8159279 Current driving circuit Apr. 17, 2012
7982521 Device and system for reducing noise induced errors Jul. 19, 2011
7839186 Preset circuit of audio power amplifier Nov. 23, 2010
7800425 On-chip mode-setting circuit and method for a chip Sep. 21, 2010
7791396 Semiconductor integrated circuit and semiconductor package module having the same Sep. 7, 2010
7760004 Clamp networks to insure operation of integrated circuit chips Jul. 20, 2010
7719339 Circuit arrangement and method for limiting a signal voltage May. 18, 2010
7636005 Active clamp for semiconductor device Dec. 22, 2009
7548108 Semiconductor integrated circuit device with dual insulation system Jun. 16, 2009
7511550 Method and apparatus for improving reliability of an integrated circuit having multiple power domains Mar. 31, 2009
7262650 Amplitude adjusting circuit Aug. 28, 2007
7215172 Clamping circuit transistor driving circuit using the same May. 8, 2007
7135914 High voltage CMOS switch with reduced high voltage junction stresses Nov. 14, 2006
7071763 Transistor circuits for switching high voltages and currents without causing snapback or breakdown Jul. 4, 2006
7046079 Circuit for generating a reference voltage May. 16, 2006
7012456 Circuit and method for discharging high voltage signals Mar. 14, 2006
6980048 Voltage generating circuit capable of supplying stable output voltage regardless of external input voltage Dec. 27, 2005
6897702 Process variation compensated high voltage decoupling capacitor biasing circuit with no DC current May. 24, 2005
6892086 Medical electrode for preventing the passage of harmful current to a patient May. 10, 2005
6847248 Sub-micron high input voltage tolerant input output (I/O) circuit which accommodates large power supply variations Jan. 25, 2005
6812766 Input/output circuit of semiconductor integrated circuit Nov. 2, 2004
6784720 Current switching circuit Aug. 31, 2004
6744297 Inverter circuit Jun. 1, 2004
6703889 In-rush current protection Mar. 9, 2004
6700431 I/O pad overvoltage protection circuitry Mar. 2, 2004
6661273 Substrate pump circuit and method for I/O ESD protection Dec. 9, 2003
6624671 Wide-band replica output current sensing circuit Sep. 23, 2003
6623375 Golf club Sep. 23, 2003
6590456 Active cascode amplifier with an amplitude limiter Jul. 8, 2003
6580306 Switching circuit utilizing a high voltage transistor protection technique for integrated circuit devices incorporating dual supply voltage sources Jun. 17, 2003
6580308 VDS protection for high voltage swing applications Jun. 17, 2003
6552595 Current-controlled high voltage discharge scheme Apr. 22, 2003
6535046 Integrated semiconductor circuit with an increased operating voltage Mar. 18, 2003
6512401 Output buffer for high and low voltage bus Jan. 28, 2003
6437605 Dynamic sense amplifier for low-power applications Aug. 20, 2002
6433609 Double-gate low power SOI active clamp network for single power supply and multiple power supply applications Aug. 13, 2002
6429728 Component assisted power regulation Aug. 6, 2002
6424280 Signal clipping circuit for switched capacitor sigma delta analog to digital converters Jul. 23, 2002
6420923 Low supply, current-controlled FET Pi attenuator Jul. 16, 2002
6297686 Semiconductor integrated circuit for low-voltage high-speed operation Oct. 2, 2001
6294943 Method of designing fail-safe CMOS I/O buffers whose external nodes accept voltages higher than the maximum gate oxide operating voltage Sep. 25, 2001
6275089 Low voltage controllable transient trigger network for ESD protection Aug. 14, 2001
6271705 Data output circuits having enhanced ESD resistance and related methods Aug. 7, 2001
6252423 Voltage tolerant interface circuit Jun. 26, 2001
6242972 Clamp circuit using PMOS-transistors with a weak temperature dependency Jun. 5, 2001

1 2 3 4

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