|
Match
|
Document |
Document Title |
|
|
6628108 |
Method and apparatus to provide a low voltage reference generation
A method and apparatus to provide a low voltage reference generation. The apparatus includes a reference voltage generator to receive a first input voltage signal and output a reference voltage...
|
|
|
6621349 |
Power supply noise compensation amplifier
A power supply noise compensation amplifier has an input for connection to a power supply. The amplifier includes a differential amplifier circuit for providing an instantaneous amplified signal in...
|
|
|
6617930 |
Power supply circuit for transmitter
A DC voltage input to an IF, DC input is applied to a switching regulator of a power supply circuit, a DC voltage necessary for driving a power amplifier is directly applied from the switching...
|
|
|
6600302 |
Voltage stabilization circuit
A voltage stabilization circuit includes a band gap reference circuit to generate a stable output voltage that is temperature-independent, and a folded cascode feedback circuit to generate a...
|
|
|
6580261 |
Low current open loop voltage regulator monitor
A low current open loop voltage regulator monitor. A circuit is formed with a PTAT current source across a resistor. This current is mirrored by a circuit with two outputs. A first output is formed...
|
|
|
6566849 |
Non-linear temperature compensation circuit
A non-linear temperature compensation circuit ( 10 ) is provided for generating at least dual-slope characteristics responsive to changes in operating temperature of the compensation circuit. The...
|
|
|
6563375 |
Amplifier having stacked current-driven current drivers
According to a particular example application, the present invention is embodied in the form of first and second current-steering sections arranged to steer a differential current input signal....
|
|
|
6548995 |
High speed bias voltage generating circuit
A high speed bias voltage generating circuit 10 for use with semiconductor devices. The bias voltage generating circuit 10 includes three circuits or circuit portions 12 , 14 and 16 which...
|
|
|
6542027 |
Bandgap reference circuit with a pre-regulator
A bandgap reference circuit has a pre-regulator that achieves a low temperature coefficient through the use of a first component that generates a first voltage having a negative temperature...
|
|
|
6528979 |
Reference current circuit and reference voltage circuit
There is disclosed a reference current circuit capable of preventing an appearance of the effect of the Early voltage, operated from a low power supply voltage, and adapted to output a current...
|
|
|
6509726 |
Amplifier for a bandgap reference circuit having a built-in startup circuit
A bandgap reference circuit includes at least one transistor, an amplifier and a start-up circuit. The amplifier is coupled to the transistor(s) to establish a bandgap reference voltage. The...
|
|
|
6507180 |
Bandgap reference circuit with reduced output error
A bandgap reference (BGR) circuit of the present invention includes a first serial circuit made up of a first diode, a first transistor, and a first resistor. A second serial circuit includes a...
|
|
|
6504353 |
Drive power supplying method for semiconductor memory device and semiconductor memory device
A drive power supply method for a semiconductor device is provided. The semiconductor device has an internal supply voltage generating circuit. First and second internal circuits are connected to...
|
|
|
6465996 |
Constant voltage circuit with a substitute circuit in case of input voltage lowering
A constant voltage circuit robust to the input voltage lowering is disclosed. The invention is applied to a constant voltage circuit fed with an input voltage through first and second power...
|
|
|
6441593 |
Low noise switching regulator
An apparatus comprising a first device and a second device. The first device may be connected to a first supply voltage. The second device may be connected (i) in series with the first device and...
|
|
|
6441687 |
Amplifier bias voltage generating circuit and method
A novel bias voltage generating circuit and method are disclosed. In one embodiment, the bias voltage generating circuit includes a first transistor with a base terminal coupled to the output node...
|
|
|
6433528 |
High impedance mirror scheme with enhanced compliance voltage
A high-impedance current source 100 having an enhanced compliance voltage. The current source 100 preferably has a means for generating a biasing current 105 and a first current mirror stage...
|
|
|
6414472 |
Electronic switching regulator circuit for producing a reference voltage variable with temperature
A switching regulator circuit produces a varying reference voltage with temperature and includes at least one band-gap generator for supplying a power stage through an error amplifier and a...
|
|
|
6407538 |
Voltage down converter allowing supply of stable internal power supply voltage
A voltage down converter includes a first voltage down converting circuit and a second voltage down converting circuit. The first voltage down converting circuit supplies an internal power supply...
|
|
|
6407638 |
Low temperature-corrected voltage generator device
The low temperature-corrected constant voltage generator device includes a reference voltage generator, an amplifier connected between the reference voltage generator and an output terminal and a...
|
|
|
6392472 |
Constant internal voltage generation circuit
A voltage generation circuit includes a digital type VDC. The digital VDC includes a differential amplify circuit amplifying a voltage deviation of a reference voltage signal from a detection...
|
|
|
6384585 |
Current generator for alternatively providing a first constant current and a ratioed second constant current to a sigma-delta modulator
The present invention refers to a current generator able to provide in alternative to a first terminal a first current and a second current in response to a control signal. Particularly it refers...
|
|
|
6380723 |
Method and system for generating a low voltage reference
A single cell voltage reference operates under low power supply requirements to provide a configurable voltage reference. The single cell voltage reference includes a diode device that is biased as...
|
|
|
6362612 |
Bandgap voltage reference circuit
An improved bandgap voltage reference circuit for providing a stable reference output voltage, useful in circuits associated with power supply voltage operations as low as approximately 1.3 Volts....
|
|
|
6362613 |
Integrated circuit with improved current mirror impedance and method of operation
An integrated circuit ( 200, 300, 500 ) includes a current mirror having high output impedance and also having an output device with a low drain-to-source saturation voltage.
|
|
|
6362688 |
System and method for optimal biasing of a telescopic cascode operational transconductance amplifier (OTA)
A system and method of biasing a telescopic cascode operational transconductance amplifier is provided to prevent or reduce the likelihood that the inputs to the amplifier do exceed the input...
|
|
|
6359516 |
High-frequency amplifier circuit with independent control of quiescent current and bias impedance
A high-frequency amplifier circuit includes an amplifying transistor and a bias circuit coupled to the amplifying transistor. The bias circuit includes a first bias subcircuit for controlling a...
|
|
|
6356064 |
Band-gap reference circuit
A band-gap reference circuit generates and supplies a predetermined stable voltage (VREF). The band-gap reference circuit is comprised of three major circuits: a start-up circuit, which is...
|
|
|
6340918 |
Negative feedback amplifier circuit
An amplifier circuit comprises a first amplifier stage controlling a second gain stage which is coupled between a voltage input node and an output node. A frequency compensating circuit is coupled...
|
|
|
6340882 |
Accurate current source with an adjustable temperature dependence circuit
An accurate current source with an adjustable temperature dependence. This type of current source is used in silicon Integrated Circuit (IC) designs requiring supporting reference-voltage sources...
|
|
|
6329804 |
Slope and level trim DAC for voltage reference
A method and apparatus for trimming the level and slope in a voltage reference using current-switching DACs to inject small correction currents into or draw currents from the voltage reference...
|
|
|
6297678 |
Circuit for rapidly charging a system net
An electronic system, precharge circuit, and method for precharging system net. The system includes a plurality of devices. Each of the devices includes at least one I/O pin driven by an driver...
|
|
|
6297624 |
Semiconductor device having an internal voltage generating circuit
An internal power supply circuit produces an internal power supply voltage from an external power supply voltage. A voltage level control circuit controls a voltage level and a temperature...
|
|
|
6294902 |
Bandgap reference having power supply ripple rejection
A bandgap reference circuit provides an output reference voltage that is generally insensitive to fluctuations in supply voltage, ambient temperature, and output load current. A current regulator...
|
|
|
6288526 |
Voltage down converter for multiple voltage levels
A voltage regulator circuit in an integrated circuit (IC) device such as a Complex Programmable Logic Device (CPLD) comprises a reference voltage generator, a tuning circuit, and an output driver...
|
|
|
6285245 |
Constant voltage generating circuit
A constant voltage generating circuit, with a negative temperature coefficient, is able to generate a stable voltage despite variations in the power supply voltage. The constant voltage generating...
|
|
|
6285244 |
Low voltage, VCC incentive, low temperature co-efficient, stable cross-coupled bandgap circuit
A cross-coupled bandgap circuit (10, 30) generates a stable voltage reference (V ref ) at an output port (12, 32). The circuit comprises a cross-coupled current source (14, 34) coupled to a Wilson...
|
|
|
6265858 |
Voltage adjusting circuit
A voltage adjusting circuit includes a half VCC generator that generates a first voltage of a half VCC level or the like in accordance with a precharge input signal, and voltage compensator coupled...
|
|
|
6255807 |
Bandgap reference curvature compensation circuit
A temperature curvature compensation technique and circuit can be realized through the generation of a temperature curvature compensation voltage provided by measuring the difference between the...
|
|
|
6252385 |
Integrated start up and regulation circuit for a power supply
An integrated control and regulation circuit for a power stage of a regulated power supply, includes a current generator which, when the power supply is switched on, charges a decoupling capacitor...
|
|
|
6236273 |
High efficiency power amplifier
A monolithic integrated circuit amplifier has a gain stage and a buffer stage. The buffer stage includes an output stage and two separate voltage supplies, the second of which has a greater...
|
|
|
6232757 |
Method for voltage regulation with supply noise rejection
An embodiment of the invention is directed to a voltage regulator that provides a conditioned reference voltage with high supply noise rejection. A reference circuit provides an input reference...
|
|
|
6215291 |
Reference voltage circuit
A control circuit is provided to minimize the charging cycle time of a battery charging system by maximizing the length of time that high constant charging current is applied to a discharged...
|
|
|
6211661 |
Tunable constant current source with temperature and power supply compensation
A tunable constant current source having temperature and power supply compensation is provided. The tunable constant current source includes a voltage regulator, a differential amplifier, a current...
|
|
|
6184670 |
Memory cell voltage regulator with temperature correlated voltage generator circuit
A temperature-related voltage generating circuit has an input terminal receiving a control voltage independent of temperature, and an output terminal delivering a temperature-related control...
|
|
|
6184745 |
Reference voltage generating circuit
A reference voltage generating circuit generates a reference voltage by using a voltage difference of a PMOS transistor, to thereby exclude the reliability of a back-bias voltage. The reference...
|
|
|
6181121 |
Low supply voltage BICMOS self-biased bandgap reference using a current summing architecture
An apparatus comprising a first circuit, a second circuit and a third circuit. The first circuit may be configured to generate a first current in response to a reference voltage. The first current...
|
|
|
6175224 |
Regulator circuit having a bandgap generator coupled to a voltage sensor, and method
A regulator (200) has a pass transistor (250) for transferring a voltage from an input (202) to an output (205). A voltage sensor (231) at the output (205) carries a PTAT current (I A ) A generator...
|
|
|
6166590 |
Current mirror and/or divider circuits with dynamic current control which are useful in applications for providing series of reference currents, subtraction, summation and comparison
Circuit useful as current mirror and/or current divider has a circuit topology containing mirror and reference transistor pairs, respectively provided by MOS P and N type transistors for the up and...
|
|
|
6144195 |
Compact voltage regulator with high supply noise rejection
An embodiment of the invention is directed to a voltage regulator that provides a conditioned reference voltage with high supply noise rejection. A reference circuit provides an input reference...
|