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Class 327/378 - Compensation for variations in external physical values (e.g., temperature, etc.)


Subclass of Class 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
Definition: Subject matter including a circuit to offset an undesired
No. of patents: 177
Last issue date: 06/08/2010


1          
NumberTitleIssue Date
7733156Transistor arrangement, integrated circuit and method for operating field effect transistors
The transistor arrangement contains a first and a second field effect transistor comprising a first and a second source drain connection and a control connection for applying a first or a second signal. The two field effect transistors are of the same conductive typ...
06/08/2010
7501878Amplitude setting circuit
An amplitude setting circuit for setting an amplitude level of its output signal corresponding to an input signal. By setting a current flowing through a first diode-connected transistor (Q5) and a current flowing through a first drive transistor (Q1) ...
03/10/2009
7449936Open-loop slew-rate controlled output driver
A slew-rate controlled output driver for use in a semiconductor device includes a PVT variation detection unit having a delay line for receiving a reference clock in order to detect a delay amount variation of the delay line determined according to process, voltage ...
11/11/2008
7411374Circuitry and control method for charging capacitive loads
A capacitor charging circuit comprises, power transfer circuitry, power switching control circuitry and voltage measurement circuitry. The power transfer circuitry transfers power from a power source to a capacitor. The power switching control circuitry controls the...
08/12/2008
7405610Temperature compensation circuit
A temperature compensation circuit consists of a thermo sensitive resistance, a fixed resistance, a logic buffer, and a logic inverter, without incorporating any operational amplifier. A resistance value of the thermo sensitive resistance is changed by temperature c...
07/29/2008
7391221On-die impedance calibration
One exemplary device has a plurality of leads with termination impedances, and a standard impedance. Among the termination impedances are master impedances arranged to be calibrated by comparison with the standard impedance and slave impedances arranged to be calibr...
06/24/2008
7356426Calibration of thermal sensors for semiconductor dies
A thermal management system is described which may be implemented on a semiconductor die. The system may include a thermal sensor thermally coupled to the die to sense the temperature of the die and generate an output representing the sensed temperature, and an adju...
04/08/2008
7342407Temperature compensation circuit and testing apparatus
A temperature compensation circuit for effectively compensating the difference of a switching timing due to temperature change of a switching element included in a logic circuit is provided. The temperature compensation circuit includes a temperature detecting secti...
03/11/2008
7339773Method for driving a semiconductor switch and circuit configuration with a semiconductor switch
A method for driving a semiconductor switch with load current limiting and thermal protection whose maximum load current is limited and which switches off when a predetermined upper temperature is exceeded and switches on again when a predetermined lower temperature...
03/04/2008
7332952Accurate temperature measurement method for low beta transistors
An accurate temperature monitoring system that uses a precision current control circuit to apply accurately ratioed currents to a semiconductor device, which may be a bipolar junction transistor (BJT), used for sensing temperature. A change in base-emitter voltage (...
02/19/2008
7332358MOSFET temperature sensing
A MOSFET has its gate voltage controlled to provide a constant drain current of the MOSFET, for example to limit inrush current for charging a capacitance of a power supply arrangement. A decrease in the gate voltage supplied to the MOSFET, corresponding to an incre...
02/19/2008
7313034Low supply voltage temperature compensated reference voltage generator and method
A reference voltage generator uses a conventional forward junction voltage generating device and a conventional thermal generator to generate a thermal voltage. The forward junction voltage and the thermal voltages have respective thermal sensitivities that act oppo...
12/25/2007
7286003On-chip voltage regulator
An improved on-chip voltage regulator providing improved reliability by eliminating voltage stresses on critical components, comprising, a reference-signal generating block providing a first-order temperature-compensated voltage-reference signal and a first-order te...
10/23/2007
7279954On-chip temperature detection device
An on-chip temperature detection device includes: a bipolar type power transistor; a mirror transistor in which a collector current, which is proportional to a collector current of the power transistor, flows; a current detection section that detects the collector c...
10/09/2007
7279953Current switch and method of driving the same
A method and apparatus for driving a current switch with a differential drive signal monitors both the temperature of the switch and the current through the switch. The method and apparatus dynamically control the amplitude of the drive signal as a function of the s...
10/09/2007
7279941Voltage-frequency conversion apparatus and method of changing reference voltage thereof
A voltage-frequency conversion apparatus which comprises a variable current source for charging a capacitor; a current amount adjustment circuit which has a first resistor for applying a first voltage and a second resistor for applying a second voltage and adjusts t...
10/09/2007
7276878Amperage control for protection of battery over current in power tools
Amperage control of a power tool motor is provided by pulse width modulation of current from a power supply. The pulse width modulation may be varied according to the determined motor current and measured power supply voltage. The power supply may include a battery ...
10/02/2007
7253671Apparatus and method for compensating for clock drift in downhole drilling components
A precise downhole clock that compensates for drift includes a prescaler configured to receive electrical pulses from an oscillator. The prescaler is configured to output a series of clock pulses. The prescaler outputs each clock pulse after counting a preloaded num...
08/07/2007
7239163Die-level process monitor and method
A die-level process monitor (DLPM) provides a means for independently determining whether an IC malfunction is a result of the design or the manufacturing processing and further for gathering data on specific process parameters. The DLPM senses parameter variations ...
07/03/2007
7230448On-DRAM termination resistance control circuit and method thereof
An on-DRAM termination resistance control circuit is capable of controlling resistance of an IC termination and minimizing area for the resistance control circuit by using a simplified circuit scheme. The on-DRAM termination resistance control circuit includes a pus...
06/12/2007
7224208Voltage regulator which outputs a predetermined direct-current voltage with its extreme variation restrained
A voltage regulator has a reference voltage generator that outputs a reference voltage based on first and second electrical source voltages, an output circuit which generates a predetermined direct-current voltage based on the reference voltage and generates a compa...
05/29/2007
7222036Method for providing PVT compensation
Delays through components of a programmable device are determined transparently to the user through the use of mimic paths. For each delay path to be measured, at least one mimic path is created that has similar components and characteristics to the actual path to b...
05/22/2007
7218168Linear voltage regulator with dynamically selectable drivers
A voltage regulator and a method for voltage regulation are described. An adjustable driver is coupled to receive an input voltage, a gating voltage, and first control signaling. The adjustable driver includes driver transistors. The adjustable driver is configured ...
05/15/2007
7218161Substantially temperature independent delay chain
Methods and apparatuses are discussed for generating a temperature compensated signal, used for example to provide a signal with a delay within a pre-specified range over a range of temperatures to a sense amplifier of a memory array. In response to a start signal, ...
05/15/2007
7218148Tracking unity gain for edge rate and timing control
In general, in one aspect, the disclosure describes an apparatus for calibrating signals. The apparatus includes a unity gain detector to traverse a gain curve of an output buffer circuit to determine unity gain voltages associated with unity gain crossover points o...
05/15/2007
7200370Power amplifier having enhanced swing cascode architecture
A Radio Frequency (RF) power amplifier includes a transconductance stage, an AC coupling element, and a cascode stage. The transconductance stage is adapted to receive an input RF voltage signal and to produce an output RF current signal. The cascode stage is adapte...
04/03/2007
7183788Wireless radio frequency technique design and method for testing of integrated circuits and wafers
The present invention is for an apparatus and method for the wireless testing of Integrated Circuits and wafers. The apparatus comprises a test unit external from the wafer and at least one test circuit which is fabricated on the wafer which contains the Integrated ...
02/27/2007
7180345Apparatus and a method to provide time-based edge-rate compensation
A method and an apparatus to provide time-based edge-rate compensation have been disclosed. In one embodiment, the apparatus includes a reference pad, a reference circuit coupled to the reference pad, the reference circuit being operable to charge and to discharge a...
02/20/2007
7174521System and method for product yield prediction
A system and method for predicting yield of integrated circuits includes at least one type of characterization vehicle which incorporates at least one feature which is representative of at least one type of feature to be incorporated in the final integrated circuit ...
02/06/2007
7161341System, circuit, and method for auto-zeroing a bandgap amplifier
A circuit includes a bandgap core coupled to an input voltage and capable of producing an output voltage. The circuit also includes an amplifier coupled to the bandgap core. In addition, the circuit includes a switch coupling the bandgap core to an output terminal. ...
01/09/2007
7148732Semiconductor integrated circuit
A delay circuit includes a constant current source, a delay stage, and a compensating circuit. The delay circuit may compensate for a variation in a delay characteristic of the delay stage due to a variation in temperature, supply voltage and/or process. ...
12/12/2006
7142254Self compensating video data amplifier and driver for broadcast data receiver
The invention relates to improvements to the operation of a broadcast data receiver (BDR) and, in particular, to the provision of a video data amplifier and driver circuit for the processing of a received video data signal. The circuit includes a means for generatin...
11/28/2006
7135896Output buffer circuit and semiconductor integrated circuit
Replica output buffers, having the same input/output characteristic as that of an output buffer, respond to the rise of a TEST signal generated by a test pulse generating circuit and causes an output signal to rise at a through rate according to voltage of an SL_SET...
11/14/2006
7133601Amperage control for protection of battery over current in power tools
Amperage control of a power tool motor is provided by pulse width modulation of current from a power supply. The pulse width modulation may be varied according to the determined motor current and measured power supply voltage. The power supply preferably includes a ...
11/07/2006
7123071Method and device for producing delayed signals
In order to generate an output signal delayed compared to an input signal and with a defined mark-to-space ratio, it is useful to produce at least first and second intermediate signals delayed differently with respect to the input signal and to combine them to form ...
10/17/2006
7116588Low supply voltage temperature compensated reference voltage generator and method
A reference voltage generator uses a conventional forward junction voltage generating device and a conventional thermal generator to generate a thermal voltage. The forward junction voltage and the thermal voltages have respective thermal sensitivities that act oppo...
10/03/2006
7084637Method for monitoring at least two electromagnetic valves of an internal combustion engine, especially an internal combustion engine of a motor vehicle in particular
A device for monitoring at least two electromagnetic valves of an internal combustion engine in a motor vehicle. An actual current that is independent of the other valves may be supplied to each valve. A setpoint current is preselected for each valve. Measuring devi...
08/01/2006
7075368Linear-in-decibel variable gain amplifier
A variable gain amplifier having a linear decibel-scale gain comprises an amplifying stage for generating an output voltage according to a differential input voltage, and a gain-controlling stage for outputting a gain-controlling voltage to the amplifying stage acco...
07/11/2006
7053680Complement reset buffer
A system and method for increasing speed and efficiency of data buffers is described. A complement reset buffer is provided comprising two pulse generators and an output stage. The first generator responds to a rising edge in a data signal and the second generator r...
05/30/2006
7053697System for tuning a corner frequency of a low pass filter
An integrated circuit formed on a semiconductor chip, comprising a low pass filter circuit having a first resistor of a first resistance value and a capacitor of a first capacitance value, wherein the first resistance value and the first capacitance value determine ...
05/30/2006
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