Class 327/322 - Of output current

Subclass of Class 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
Definition: Subject matter including apparatus which regulates the value
No. of patents: 87
Last issue date: 06/30/2009

«First «Previous1 2 3 Next»Last»

Number	Title	Issue Date
7554378	Fast DC coupled level translator A level translator has an inverter comprising a first transistor having a first predetermined voltage threshold and a second transistor having a second predetermined voltage threshold. The two transistors have control gates being of complementary conductivity. A fir...	06/30/2009
7358995	Captured-image-signal processing method and apparatus and imaging apparatus An imaging apparatus includes a solid-state imaging device that outputs a captured image signal in current mode, which in turn is subjected to CDS processing in current mode by a current signal detector, thus suppressing FPN noise. A captured image signal output by ...	04/15/2008
7260428	Shield arrangement for ECG lead wires A grounding arrangement in a system using the same connector for 5- and 12-lead connection in ECG-measurement. If 5-lead configuration is used, the connector elements of the 12-lead connection are used for grounding of lead wire shields through a current limiting ci...	08/21/2007
7215172	Clamping circuit transistor driving circuit using the same A clamping circuit including a current mirror circuit including transistors constituting a mirror pair disposed at ground side, each of the transistors being connected to a power source through a resistance element; a plurality of adjusting transistors connected in ...	05/08/2007
7139203	Voltage regulator and data path for a memory device A method and apparatus provide unbalanced output drive capability, for example, to correct for output skews in subsequent output stages. In one aspect, a pre-driver or the like provides unbalanced output drive capability. The pre-driver is comprised of first and sec...	11/21/2006
7119606	Low-power, low-area power headswitch An N-FET headswitch has improved performance (e.g., less leakage current, lower ON resistance, and smaller area) over a conventional P-FET headswitch. The N-FET headswitch includes at least one N-FET device and couples between a power supply and a load circuit, whic...	10/10/2006
7116537	Surge current prevention circuit and DC power supply A surge current prevention circuit and DC power supply for preventing surge current in various operation applications with a small circuit configuration. A power switch connects an external power supply and a load. A first PMOS transistor is connected to a constant ...	10/03/2006
7084692	Control of a thyristor of a rectifying bridge A method and a circuit for controlling at least one thyristor constitutive of a rectifying bridge with a filtered output, including closing the thyristor when the voltage thereacross becomes greater than zero, and making the gate current of the thyristor disappear w...	08/01/2006
6973153	Transmit and receive protection circuit A transmit and receive protection circuit for use in a communication system is disclosed. The protection circuit uses a four-diode gate in which the currents through an input portion and an output portion of the diode gate are individually controlled by resistors lo...	12/06/2005
6856163	Power supply decoupling for parallel terminated transmission line An interconnect circuit for communicating data. The interconnect circuit including at least one driver to receive and transmit data. At least one termination device in communication with each driver. A first power supply having an output to supply power to the drive...	02/15/2005
6853232	Power switching device A power switching device has a power switching transistor connected in series in a load circuit with an inductive load portion and a commutation circuit. The commutation circuit is connected in parallel with the gate-drain or base-collector path of the power transis...	02/08/2005
6787850	Dynamic threshold voltage MOS transistor fitted with a current limiter The invention concerns a semi-conductor device comprising on a substrate: a first dynamic threshold voltage MOS transistor (10), with a gate (116), and a channel (111) of a first conductivity type, and a current limiter means (2...	09/07/2004
6784720	Current switching circuit In a current switching circuit, a complementary circuit switches, in response to an input signal, a pair of current mirror circuits between a first state, enabling the first of the current mirror circuits, through a first current mirror current and disabling the sec...	08/31/2004
6784702	Driver circuit with dynamically adjusting output current and input current-limiting function The present invention provides a Driver circuit having dynamically adjusting output current and limiting input current function. This present invention dynamically adjusts the output current provided by the driver unit to reduce this output current in real time. A p...	08/31/2004
6768372	Analog filter architecture According to some embodiments, a device includes a phase generator to generate m control signals, each of the m control signals associated with a respective signal period, and at least m filters, each of the at least m filters comprising m-n taps, each of the m-n ta...	07/27/2004
6700428	Circuit configuration with a controllable current limiting circuit for driving a load A circuit configuration for driving a load is described. The circuit configuration has a first and a second connecting terminal for connecting the load, a first drive input for applying a first drive signal, and a first semiconductor switching element hav...	03/02/2004
6694444	System and method for reducing over-shoot and ringback by delaying input and establishing a synchronized pulse over which clamping is applied In one embodiment of the invention, a clamping circuit clamps an input signal to reduce overshoot and ringback. A pulse generator generates a pulse signal having a pulse interval from the input signal and a delayed signal. The input signal transitions fro...	02/17/2004
6578156	Output buffer having a plurality of switching devices being turned on successively at shorter time intervals to achieve increasing drive capability using a predriver An output drive circuit of an output buffer circuit has a signal output line and first, second and third switching circuits connected to the signal output line at different locations thereof. Each of the first, second and third switching circuits includes...	06/10/2003
6542018	Current mode step attenuation control circuit with digital technology A current mode step attenuation control circuit with digital technology. The circuit includes several stages of serially connected current attenuation circuits, each having a digital control input port, common mode feedback signal input port and bias inpu...	04/01/2003
6496049	Semiconductor integrated circuit having a current control function This semiconductor integrated circuit is constituted by any one of a p-channel MOS transistor and an n-channel MOS transistor, and is connected between the control terminal and the common terminal so as to produce predetermined voltage. The comparing circ...	12/17/2002
6456139	Auto-detection and auto-enable of compact PCI bus pull-ups A device for automatically varying resistance includes a comparator for comparing a control voltage to a reference voltage; a switch operatively coupled to the comparator; and a first resistor and second resistor operatively coupled in a series connection...	09/24/2002
6433610	Current clamp circuit A current clamp circuit which can easily restrict an output current externally in an output current amplifier circuit using a current buffer IC, is provided. The current clamp circuit 10 restricts the output current in the output current amplifier circuit...	08/13/2002
6323701	Scheme for reducing leakage current in an input buffer A circuit for addressing leakage. The circuit may have a variable supply stage having an active load in parallel with a switch transistor where the active load and the switch transistor are coupled to a decoupling capacitor. The circuit may also have a le...	11/27/2001
6284616	Circuit and method for reducing parasitic bipolar effects during electrostatic discharges A semiconductor device including a current source having a first node coupled to a terminal, and a second node for extracting a current in response to an electrostatic discharge (ESD) on the terminal. The semiconductor device further including a transisto...	09/04/2001
6259298	Method and an arrangement for adapting from a DC point of view a first circuit to at least one second circuit In a method and an arrangement for adapting, from a DC point of view, the signal input of a first circuit, lying at a first DC voltage, to the signal output of at least one second circuit, lying at a second DC voltage, the signal input terminal is connect...	07/10/2001
6144245	Adaptive leading edge blanking circuit to eliminate spike on power switching transistor current sense signal Leading-edge blanking circuits blank the leading edge of a current sense signal generated by sensing circuitry sensing the current through a switching field-effect transistor. A current sensor is employed to sense the magnitude of gate current being provi...	11/07/2000
5939921	Drive circuit for a field-effect-controlled semiconductor component which opens a switch when a predetermined current is exceeded A drive circuit for a field-effect-controlled semiconductor component reduces a charging current for driving the field-effect-controlled semiconductor component when a load current limiting responds. That prevents an increase in current consumption of the...	08/17/1999
5923203	CMOS soft clipper A soft clipper circuit in CMOS technology not only allows the knee to be programmed, but also the slope of the curve after the knee to be programmed. This is accomplished by putting a second transconductance in parallel with the first transconductance, an...	07/13/1999
5909660	Signal conditioning module for sensing multiform field voltage signals A signal conditioning module for sensing multiform field signals and for providing isolated digital signals appropriate for a processing system. The present invention allows sensing of field signals which are either AC or DC and which have magnitudes rang...	06/01/1999
5844440	Circuit for inrush and current limiting A circuit for limiting the current flow in a "pluggable" circuit during start-up or circuit fault conditions employs a MOSFET in conjunction with a feedback system, wherein a source terminal of the MOSFET is connected to a power supply bus and a drain ter...	12/01/1998
5831466	Protection method for power transistors, and corresponding circuit The present invention is aimed at providing a method and a circuit for protecting the output stage of a power actuator against voltage transients of the surge type. In particular, it provides protection against voltage surge transients of the kind describ...	11/03/1998
5677642	Signal generator with supply voltage tolerance A signal generator and method that is tolerable to supply voltage fluctuations and differentials. A current switch is driven that is independent of the supply voltage. By clamping the slewing voltage at the gate of a transistor driver, the difference betw...	10/14/1997
5603308	IGBT driving circuit and ignition device An IGBT driving circuit includes an IGBT connected in series with a primary winding of an ignition coil and a current detecting resistor. A transistor is connected to the gate of the IGBT to apply a gate voltage in response to an ignition signal. A compar...	02/18/1997
5545934	Voltage clamp circuit A clamping circuit for clamping a circuit node during an initial circuit powerup interval includes a switching circuit and a switching control circuit. The switching circuit is an N-MOSFET with its drain and source terminals connected to circuit ground an...	08/13/1996
5465067	Current clamping circuit A current clamping circuit is provided which clamps a current signal to a predetermined reference current level. An input current signal and a reference current signal are supplied to the clamping circuit. The clamping circuit includes a current differenc...	11/07/1995
5455523	Method and apparatus for non-linear transmission line termination A non-linear transmission line terminator (10) is provided in which voltages appearing on a transmission line are sensed. If the voltage level sensed is equal to a predetermined voltage, the non-linear transmission line terminator (10) couples a reference...	10/03/1995
5444409	Interface circuit for linking microprocessors An interface circuit for linking microprocessors, intended to limit the current (Iout) in the link (L1-L2) by inserting in the link the emitter-collector path of a first transistor (T1) which is in the saturated state during operation. This cir...	08/22/1995
5420499	Current rise and fall time limited voltage follower A current rise in fall time limited voltage follow is shown having a voltage driver providing a voltage signal into a current driver. The output of the current driver is a load varying in resistance, for example, as the number or combination of devices co...	05/30/1995
5397978	Current limit circuit for IGBT spark drive applications An improved method for current limiting applications to control the current through MOSFETs or IGBTs. An amplifier having a single, high-frequency pole is used to drive the large gate capacitance of a power MOSFET or IGBT. The current in the power transis...	03/14/1995
5387830	Semiconductor device with excess current prevention circuit A semiconductor device with an excess current prevention circuit includes a bootstrap circuit, a first NMOS transistor, a second NMOS transistor and a constant voltage element. The first NMOS transistor has a drain electrode to receive a power supply pote...	02/07/1995

«First «Previous1 2 3 Next»Last»

PatentStorm

Quotables

PatentStorm News

Class 327/322 - Of output current