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US20090302931 LOW-POWER VOLTAGE REFERENCE  
A circuit provides a voltage reference using very low power. It can also be used as a shut regulator for a quiescent current as low as 1.5μA. It includes a transconductance amplifier, a gain...
US20090289697 BANDGAP REFERENCE GENERATOR UTILIZING A CURRENT TRIMMING CIRCUIT  
A circuit for providing a bandgap voltage. The circuit includes a classic bandgap reference voltage generation circuit including first end second serially connected transistors acting as a current...
US20090284304 CIRCUIT FOR GENERATING A TEMPERATURE-COMPENSATED VOLTAGE REFERENCE, IN PARTICULAR FOR APPLICATIONS WITH SUPPLY VOLTAGES LOWER THAN 1V  
An embodiment of a circuit is described for the generation of a temperature-compensated voltage reference of the type comprising at least one generator circuit of a band-gap voltage, inserted...
US20090261895 BANDGAP VOLTAGE REFERENCE CIRCUIT  
A bandgap voltage reference circuit includes an operational amplifier, a first transistor, a second transistor, a third transistor, a first resistor, a second resistor, a first diode, a second...
US20090257289 INTERNAL VOLTAGE GENERATOR AND SEMICONDUCTOR MEMORY DEVICE INCLUDING THE SAME  
A semiconductor device including an internal voltage generator circuit that provides an internal voltage having a different level depending on the operation speed is provided. The semiconductor...
US20090243708 BANDGAP VOLTAGE REFERENCE CIRCUIT  
A bandgap voltage reference circuit which provides a bandgap reference voltage without requiring a resistor. The circuit comprises an amplifier having an inverting input, a non-inverting input and...
US20090243709 DEVICES, SYSTEMS, AND METHODS FOR GENERATING A REFERENCE VOLTAGE  
Methods, devices, and systems are disclosed for a voltage reference generator. A voltage reference generator may comprise a bandgap voltage reference circuit configured to output two...
US20090237150 BANDGAP REFERENCE CIRCUIT WITH LOW OPERATING VOLTAGE  
A bandgap reference circuit comprising a current mirror, an operational amplifier, first and second BJT transistors is disclosed. The current mirror comprises a first input terminal, a second input...
US20090237151 TEMPERATURE COMPENSATION CIRCUIT  
A temperature compensation circuit performing temperature compensation of an analog reference voltage, includes: a first reference voltage generating circuit generating a first voltage of which a...
US20090212853 APPARATUS FOR SUPPLYING POWER IN SEMICONDUCTOR INTEGRATED CIRCUIT AND INPUT IMPEDANCE CONTROL METHOD OF THE SAME  
An apparatus for supplying power in a semiconductor integrated circuit includes a plurality of power lines, each supplying external power to an interior of the semiconductor integrated circuit, and...
US20090206919 NO-TRIM LOW-DROPOUT (LDO) AND SWITCH-MODE VOLTAGE REGULATOR CIRCUIT AND TECHNIQUE  
An optimized output voltage circuit and technique obtainable without trimming is set forth. A voltage reference circuit and method devoid of trim resistors comprising a high gain amplifier, a...
US20090195301 BAND-GAP REFERENCE VOLTAGE DETECTION CIRCUIT  
Methods, devices, modules, and systems for a band-gap reference voltage detection circuit are provided. One embodiment for a band-gap reference voltage detection circuit includes a Brokaw cell...
US20090174468 Thermal Sensing Circuit Using Bandgap Voltage Reference Generators Without Trimming Circuitry  
Methods, systems and thermal sensing apparatus are provided that use bandgap voltage reference generators that do not use trimming circuitry. Further, circuits, systems, and methods in accordance...
US20090167663 Liquid Crystal Display Apparatus and Bandgap Reference Circuit Thereof  
A liquid crystal display apparatus comprises a system-on-glass (SOG) and a bandgap reference (BGR) circuit. The BGR circuit, which is formed on the SOG, comprises a current mirror set and a diode...
US20090160537 Bandgap voltage reference circuit  
A bandgap voltage reference circuit with an inherent curvature correction which comprises an amplifier having an inverting terminal, a non-inverting terminal and an output terminal is described. A...
US20090160538 Low voltage current and voltage generator  
A bandgap reference circuit which is operable in low supply conditions is described. Such a circuit includes a second amplifier and a resistor at the output of a bandgap reference cell to create a...
US20090146729 CONSTANT VOLTAGE CIRCUIT, CONSTANT VOLTAGE SUPPLY SYSTEM AND CONSTANT VOLTAGE SUPPLY METHOD  
An input voltage signal VIN to be inputted to a gate terminal of a PMOS transistor M1 is converted to a voltage value which was level shifted at the source terminal by an inter-terminal voltage...
US20090146719 Control Voltage Generator for a Clock, Frequency Reference, and Other Reference Signal Generator  
Exemplary embodiments of the invention provide a reference signal generator, system and method. An exemplary apparatus to generate a harmonic reference signal includes a reference resonator, such...
US20090141156 REFERENCE VOLTAGE GENERATION IN IMAGING SENSORS  
The claimed subject matter provides systems and/or methods that facilitate generating and/or maintaining low noise reference voltages for CMOS imaging System-on-Chip (iSoC) sensors. A primary...
US20090128229 MULTI-CHIP PACKAGE SEMICONDUCTOR DEVICE  
An efficient logic chip operating power supply having digital circuits in a multi-chip package is provided. A multi-chip package semiconductor device fabricated in common with a driver chip having...
US20090128230 BAND-GAP REFERENCE VOLTAGE GENERATOR FOR LOW-VOLTAGE OPERATION AND HIGH PRECISION  
Provided is a band-gap reference voltage generator for low-voltage operation and high precision. The band-gap reference voltage generator minimizes voltage drop by connecting resistors in parallel...
US20090121698 BANDGAP VOLTAGE REFERENCE CIRCUITS AND METHODS FOR PRODUCING BANDGAP VOLTAGES  
A bandgap voltage reference circuit includes a first circuit portion and a second circuit portion. The first circuit portion generates a voltage complimentary to absolute temperature (VCTAT). The...
US20090115502 REFERENCE CURRENT CIRCUIT, REFERENCE VOLTAGE CIRCUIT, AND STARTUP CIRCUIT  
A current mirror circuit 10 is formed to have a current ratio (a transistor size ratio) of 1:m. As well, respective pairs of nMOS transistors MN 1 , MN 3 and nMOS transistors MN 2 , MN 4 are...
US20090108919 POWER SUPPLY CIRCUIT USING INSULATED-GATE FIELD-EFFECT TRANSISTORS  
A power supply circuit is disclosed. The power supply circuit is provided with a reference voltage generation circuit to receive a voltage from a higher voltage supply so as to generate a reference...
US20090108917 METHODS AND APPARATUS TO PRODUCE FULLY ISOLATED NPN-BASED BANDGAP REFERENCE  
Methods and apparatus to produce fully isolated NPN-based bandgap references are disclosed. A disclosed method to form a bandgap reference comprises generating a first current that is...
US20090108918 METHODS AND APPARATUS TO SENSE A PTAT REFERENCE IN A FULLY ISOLATED NPN-BASED BANDGAP REFERENCE  
Methods and apparatus for a PTAT reference in a fully isolated NPN-based bandgap references are disclosed. A disclosed method to form a bandgap reference comprises generating a first current that...
US20090096509 Bandgap Reference Circuits for Providing Accurate Sub-1V Voltages  
A reference voltage circuit includes a first PMOS device having a first source, a first gate, and a first drain, wherein the first source is coupled to a power supply node; and a second PMOS device...
US20090096510 REFERENCE VOLTAGE GENERATING CIRCUIT FOR USE OF INTEGRATED CIRCUIT  
An amplifying circuit receives an output from a comparator. The output is provided to each gate of first, second and third transistors. First and second resistors are connected in series. The first...
US20090085549 BANDGAP REFERENCE CIRCUIT WITH REDUCED POWER CONSUMPTION  
A bandgap voltage reference circuit and methods for generating a bandgap reference voltage are disclosed. An operational amplifier receives first and second input voltages from a first and second...
US20090085651 SYSTEM FOR ADJUSTING OUTPUT VOLTAGE OF BAND GAP VOLTAGE GENERATOR  
An apparatus comprises a band gap voltage generator circuit for generating a band gap voltage. A temperature invariant current generator is located within the band gap voltage generator circuit for...
US20090058512 PROCESS INDEPENDENT CURVATURE COMPENSATION SCHEME FOR BANDGAP REFERENCE  
In a voltage reference circuit, a bandgap reference circuit, for generating a bandgap reference voltage and a reference current, includes an operation amplifier, and a first transistor for...
US20090039949 METHOD AND APPARATUS FOR PRODUCING A LOW-NOISE, TEMPERATURE-COMPENSATED BANDGAP VOLTAGE REFERENCE  
A bandgap voltage reference circuit is achieved that does not resort to the use of resistors or regulation loops and is thus able to achieve improved noise performance while also exhibiting...
US20090027031 Low noise bandgap voltage reference  
A bandgap voltage reference circuit that can be implemented with low noise characteristics is described. To achieve such low noise, a bandgap reference circuit is provided that includes an...
US20090002062 METHOD FOR SENSING INTEGRATED CIRCUIT TEMPERATURE INCLUDING ADJUSTABLE GAIN AND OFFSET  
Embodiments of the invention include a temperature sensor method for providing an output voltage response that is linear to the temperature of the integrated circuit to which the temperature sensor...
US20080315855 Low power bandgap voltage reference circuit having multiple reference voltages with high power supply rejection ratio  
A voltage generator is used for generating a voltage reference with high power supply rejection. One embodiment of the circuit includes a voltage regulator and a bandgap voltage circuit and an...
US20080278133 IRREGULAR VOLTAGE DETECTION AND CUTOFF CIRCUIT USING BANDGAP REFERENCE VOLTAGE GENERATION CIRCUIT  
An irregular voltage detection and cutoff circuit using a bandgap reference voltage generation circuit includes the bandgap reference voltage generation circuit, which generates a bandgap reference...
US20080258804 NUMERICAL BAND GAP  
A system includes a bandgap temperature sensor to generate multiple base-emitter voltages. The system also include a controller to detect the base-emitter voltages generated by the bandgap...
US20080224760 REFERENCE VOLTAGE GENERATOR AND INTEGRATED CIRCUIT INCLUDING A REFERENCE VOLTAGE GENERATOR  
A reference voltage generator and an integrated circuit including the reference voltage generator. The reference voltage generator includes a band gap reference circuit and a start-up circuit. The...
US20080224682 Voltage reference circuit  
A reliable start-up circuit for starting a bandgap type voltage reference generator which ensures that the bandgap reference cell will operate at a stable operating point before the start-up...
US20080224761 OPAMP-LESS BANDGAP VOLTAGE REFERENCE WITH HIGH PSRR AND LOW VOLTAGE IN CMOS PROCESS  
A circuit includes an OPAMP-less bandgap voltage generating core circuit connected between a regulated voltage and a ground reference to generate an output bandgap voltage. A preregulator circuit...
US20080224759 Low noise voltage reference circuit  
A low noise voltage reference circuit is described. The reference circuit utilizes a bandgap reference component and may include at least one of a current shunt or filter to reduce high and low...
US20080197912 Circuit arrangement for generating a temperature-compensated voltage or current reference value  
A circuit arrangement for generating a temperature-compensated voltage or current reference value (UREF) from a supply voltage (VCC) based on the bandgap principle comprises a PTAT circuit ( 201 )...
US20080187026 Temperature detection circuit  
A temperature detection circuit includes a bandgap reference voltage generation circuit, a detection output circuit, and an output conversion circuit. The bandgap reference voltage generation...
US20080186082 Digital Adaptive Voltage Supply  
Measurement circuit components are included in an integrated circuit fabricated on a semiconductor substrate. These measurement circuits include registers that are connected to a voltage regulation...
US20080169866 Combined charge storage circuit and bandgap reference circuit  
A combined charge storage and bandgap reference is disclosed. In one embodiment, a system comprises a bandgap reference circuit; a charge storage circuit, wherein an output of the bandgap reference...
US20080164937 BAND GAP REFERENCE CIRCUIT WHICH PERFORMS TRIMMING USING ADDITIONAL RESISTOR  
A band gap reference circuit incorporating resistive trimming is disclosed. The band gap reference circuit includes an additional trimming resistor and a trimming unit which performs trimming by...
US20080136504 LOW-VOLTAGE BAND-GAP REFERENCE VOLTAGE BIAS CIRCUIT  
A low-voltage band-gap reference voltage bias circuit according to the present invention can provide a stable reference voltage at a supply voltage of about 1V or lower irrespective of a power...
US20080116874 Bandgap Reference Circuits With Isolated Trim Elements  
A bandgap reference circuit utilizes differential transistors to generate a temperature-independent bandgap voltage. In place of conventional trim elements that are connected in parallel to and...
US20080116875 Systems, apparatus and methods relating to bandgap circuits  
A system includes a bandgap reference voltage circuit, a plurality of trimming resistors, a plurality of trimming switches to connect the bandgap reference voltage circuit to one or more of the...
US20080106326 Reference voltage circuit and method for providing a reference voltage  
A high precision reference voltage circuit for generating a reference voltage includes a reference voltage generation circuit for generating a reference voltage, a temperature detection circuit for...
Matches 1 - 50 out of 63 1 2 >