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7196572 |
Integrated circuit for stabilizing a voltage
An integrated circuit includes an input terminal (IN) for application of a supply voltage (Vext) and an output terminal (A) for generation of an output voltage (Vout). A first branch including a...
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7193453 |
Dual loop voltage regulation circuit of power supply chip
A dual loop voltage regulation circuit of power supply chip is provided, comprising a capacitor for providing a voltage signal, a comparator for comparing a first reference voltage signal and the...
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7193454 |
Method and a circuit for producing a PTAT voltage, and a method and a circuit for producing a bandgap voltage reference
A bandgap voltage reference circuit ( 1 ) produces a bandgap voltage reference (V ref ) on an output terminal ( 3 ) relative to a common ground voltage terminal ( 4 ). The circuit ( 1 ) develops a...
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7193403 |
Current driver
A current driver that can control variation in the consumed current in conjunction with variation in the setting value of the driving current. The mirror current of transistors Q 2 - 0 to Q 2 - 7 ...
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7193452 |
Temperature-compensated bias circuit for power amplifier
Provided is a temperature-compensated bias circuit for a power amplifier, in which a first resistor (Rref) connected to a reference voltage is connected to a base terminal of a third transistor (Q...
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7176749 |
Avoiding excessive cross-terminal voltages of low voltage transistors due to undesirable supply-sequencing in environments with higher supply voltages
Ensuring sufficient bias current is provided to a portion of a circuit containing low voltage transistors operating with a high supply voltage. Such a sufficient bias current may be ensured by...
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7173480 |
Device for controlling the operation of internal voltage generator
The present invention discloses a circuit for controlling a timing of overdriving a core voltage (internal voltage) which is a driving voltage of a sense amplifier of a memory device and a duration...
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7148741 |
Current supply circuit and method for supplying current to a load
A current supply circuit includes an input, a load terminal, a selectively activatable current regulator, a selectively activatable adjustable current source, and a comparator circuit. The input is...
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7148738 |
Systems, devices, and methods for providing control signals
Certain exemplary embodiments comprise a system, comprising: an electrical isolator adapted to couple a processor of a programmable logic controller to a user load; a transistor adapted to provide...
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7142044 |
Voltage regulator
The present invention provides a voltage regulator capable of causing a large output current to flow during a heavy load operation, and of making a leakage current from output transistors small...
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7142043 |
On chip word line voltage with PVT tracking for memory embedded in logic process
The present disclosure is directed toward regulation of voltage for semiconductor memories. In an embodiment, a circuit for providing a controlled voltage level comprises a PMOS transistor coupled...
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7142042 |
Nulled error amplifier
A multi-stage amplifier circuit that is arranged to minimize offset related errors in a reference circuit. The first stage circuit includes an array of amplifier circuits that receive feedback...
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7138852 |
Semiconductor integrated circuit device
A semiconductor integrated circuit device includes a logic circuit to perform a predetermined process, a clock generator to supply a clock signal to the logic circuit, and a speed controller to...
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7132902 |
Oscillator circuit for EEPROM high voltage generator
A semiconductor oscillator circuit for an EEPROM high voltage charge pump utilizes a current generating means to charge a first and a second capacitor alternatively. The charging current produced...
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7129775 |
Self-mirroring current mirror
A circuit and a related method to measure efficiently a load current in an integrated circuit using a current mirror configuration has been achieved. The current mirror configuration comprises...
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7129773 |
Band-gap type constant voltage generating circuit
A band-gap type constant voltage generating circuit is produced in a semiconductor chip, and has a first potential terminal and a second potential terminal. A band-gap circuit includes first and...
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7129774 |
Method and apparatus for generating a reference signal
A method and apparatus for generating a reference signal involves (i) generating a CTAT voltage and a PTAT voltage, (ii) generating a first digital signal and a second digital signal having an...
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7126412 |
Preamplification circuit
This preamplification circuit comprises a first circuit section, second circuit section the input signal of which is the output signal of the first circuit section, and third circuit section which...
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7118274 |
Method and reference circuit for bias current switching for implementing an integrated temperature sensor
A method and a reference circuit for bias current switching are provided for implementing an integrated temperature sensor. A first bias current is generated and constantly applied to a thermal...
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7119605 |
Dynamic transconductance boosting technique for current mirrors
Circuits and methods to increase the transconductance of a current mirror in case of small input currents of the current mirror without affecting the transconductance of said current mirror in case...
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7116157 |
High output impedance current source
A circuit for applications such as electrical impedance tomography includes a voltage-to-current converter having an input for receiving a voltage waveform and an output for outputting a current...
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7112948 |
Voltage source circuit with selectable temperature independent and temperature dependent voltage outputs
A voltage source includes first and second pn junctions which conduct the outputs of respective current sources to establish respective base-emitter voltages V be1 and V be2 at respective nodes;...
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7113005 |
Current mirror circuit
The present invention provides a current mirror circuit of which consistency (ratio) of the input current and output current is more improved. This current mirror circuit comprises input side and...
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7113024 |
Circuit module with high-frequency input/output interfaces
The invention relates to a circuit module with high-frequency input/output interfaces, and in particular to a circuit realized on a chip, principally a monolithic integrated circuit having a...
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7098723 |
Semiconductor circuit regulator
In a circuit designed to output a varying output voltage, the substrate of the semi-conductor component is connected to a regulator, in particular a switch, connected to a lower potential than the...
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7098728 |
Output voltage correction circuit for multiplexed multi-phase hysteretic voltage regulator
A method and circuit for compensating offset error caused by multiplexing in hysteretic control loops. An offset voltage, caused by one phase descending without being hysteretically controlled...
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7098752 |
Circuit arrangement for generating a reference current and oscillator circuit having the circuit arrangement
A circuit arrangement for generating a reference current and also an oscillator circuit having the circuit arrangement are disclosed the arrangement includes a capacitance connected to an input of...
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7098720 |
High impedance thermal shutdown circuit
A thermal shutdown circuit board integrated circuit device. The thermal shutdown circuit includes a current source for receiving a current bias and generating an output current in accordance...
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7088085 |
CMOS bandgap current and voltage generator
The present invention provides an improved reference source. The reference source has reduced sensitivity to the input offset voltage of the amplifier components in the reference circuit. This is...
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7088160 |
Circuit arrangement for regulating a parameter of an electrical signal
A circuit arrangement for regulating a parameter (e.g., duty cycle) of an electrical signal, generated by a circuit component. The regulating device includes a first integrator, which is supplied...
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7081787 |
Analog circuit for calculating square and reciprocal of a current
An analog circuit for calculating square and reciprocal of a current is provided. It is an analog integrated circuit and can make the input and output signals become currents in the current field...
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7075358 |
Base current compensation for a bipolar transistor current mirror circuit
A stable current mirror circuit that includes base current compensation is provided—i.e., a feedback loop in the current mirror circuit (used to perform base current compensation) does not have a...
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7075413 |
Reference circuit enhancement for passive RFID tags
A passive RF tag is disclosed in which the tag contains a tag oscillator for determining the modulation frequency of modulating the backscatter signal, and the tag oscillator frequency is...
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7068024 |
Voltage regulator having positive temperature coefficient for self-compensation and related method of regulating voltage
Disclosed herein is a voltage regulator, and related method, for regulating a boost voltage generated by a boost circuit. In one embodiment, the voltage regulator includes a regulated voltage input...
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7062662 |
I/O resonance cancellation circuit based on charge-pumped capacitors
An apparatus for canceling an effect of power supply resonance is provided. The effect of power supply resonance is a variation in power supply voltage potential. This variation may substantially...
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7061308 |
Voltage divider for integrated circuits
A voltage divider for integrated circuits that does not include the use of resistors. In one embodiment, voltage node VDD is connected with two n-type transistors, NFET 1 and NFET 2 , which are...
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7057442 |
Temperature-independent current source circuit
A temperature-independent current source is provided, which includes a current source generating a current that is proportional to the temperature and a current source generating a current that is...
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7053656 |
Level shifter utilizing input controlled zero threshold blocking transistors
Level shifter circuits include zero threshold transistors that reduce a voltage seen by a switching transistor of the level shifter circuits and may increase blocking of static current in the level...
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7049880 |
High precision digital-to-analog converter with optimized power consumption
A regulated charge pump circuit having two-way switching means that switches between a first feedback pathway that provides a precise and stable voltage output and a second feedback pathway that...
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7049797 |
Semiconductor integrated circuit device
In a semiconductor integrated circuit device, having a pair of voltage step-down power supply circuits for active and standby conditions, a first reference voltage is formed by amplifying a fixed...
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7042277 |
Circuit and method for reducing jitter in a PLL of high speed serial links
Aspects for reducing jitter in a PLL of a high speed serial link include examining at least one parameter related to performance of a voltage controlled oscillator (VCO) in the PLL, and controlling...
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7042278 |
Voltage reference circuit with reduced power consumption
A semiconductor integrated circuit is provided with a reference voltage generation circuit for generating a voltage to be a reference, a function circuit that is operated using an output voltage of...
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7038529 |
Voltage stabilizer
The present invention relates to a voltage stabilizer that stabilizes the voltage of a power supply line on a semiconductor substrate and is intended to provide a voltage stabilizer having a small...
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7034603 |
Floating-gate reference circuit
Systems and methods are discussed for using a floating-gate MOSFET as a programmable reference circuit. One example of the programmable reference circuit is a programmable voltage reference source,...
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7023181 |
Constant voltage generator and electronic equipment using the same
A constant voltage generator is comprised of a band gap reference circuit, a current supply circuit, a starting circuit and a voltage-current conversion circuit, and the starting circuit is further...
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7019583 |
Current inrush limiting circuit
An inrush circuit for electronic devices is particularly useful for point-of-sale printers. The circuit applies an active feedback-controlled voltage ramp to a bulk capacitor by means of a...
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7015748 |
DC-DC converter circuit for converting an input voltage to an output voltage with a predetermined holdover time
The DC-DC converter circuit has a converter unit for conversion of an input voltage to an output voltage; a first capacitor for maintaining a value of the output voltage for a predetermined...
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6992523 |
Low voltage current monitoring circuit
A current monitor ( 360 ) having a high performance, simple, and cost effective design that is independent of process, temperature and voltage is disclosed herein. The current monitor ( 360 )...
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6987403 |
Driver for an external FET with high accuracy and gate voltage protection
A circuit for driving an external FET has a differential amplification stage supplied by a first and second operating potential. An output load resistor is included in a current flow path in which...
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6985028 |
Programmable linear-in-dB or linear bias current source and methods to implement current reduction in a PA driver with built-in current steering VGA
Programmable linear-in-dB or linear bias current source with respect to an input voltage is provided. The linear-in-dB or linear bias current may be clipped at a minimum current level, a maximum...
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