Matches 51 - 100 out of 395 < 1 2 3 4 5 6 7 8 >
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7253597 Curvature corrected bandgap reference circuit and method  
A curvature corrected bandgap reference circuit comprises a first bipolar transistor having a base-emitter voltage V be1 and operated such that it has a constant operating current, and a second...
7248098 Curvature corrected bandgap circuit  
An apparatus and method provide for curvature corrected temperature variations in a band-gap reference circuit. The apparatus includes a band-gap cell, an IPTAT circuit, a resistor, and a feedback...
7242240 Low noise bandgap circuit  
The bandgap circuit comprising a plurality of cells that are sequentially connected to provide summation of ΔV BE of each cell, with low noise. Each cell is formed of a plurality of NPN bipolar...
7230473 Precise and process-invariant bandgap reference circuit and method  
A voltage generation circuit generates a reference voltage using a bandgap reference. A countering circuit is included to adaptively counter for any deviations caused in a bandgap reference voltage...
7224209 Speed-up circuit for initiation of proportional to absolute temperature biasing circuits  
A PTAT biasing circuit for use in a bandgap referenced voltage source includes a startup sub-circuit. Prior to activation of a power up indication signal, the speedup circuit forces the PTAT...
7215180 Constant voltage circuit  
A constant voltage circuit is disclosed that includes an output control transistor and an overcurrent protection circuit. The overcurrent protection circuit includes a proportional current...
7208930 Bandgap voltage regulator  
A bandgap voltage regulator is arranged such that, when a desired output voltage is present between its output and common terminals, current densities in a pair of bipolar transistors having...
7199646 High PSRR, high accuracy, low power supply bandgap circuit  
A bandgap circuit comprising a current generation circuit and a current replication circuit is provided herein. The output current of the current generation circuit is generated as a weighted sum...
7173406 Method and apparatus for gain control  
A method and apparatus for power amplifier gain control is provided, such as may be embodied as an integrated circuit is disclosed. Embodiments provide for a continuously variable gain control at...
7161341 System, 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...
7157893 Temperature independent reference voltage generator  
There is provided a reference voltage generator that generates a constant reference voltage regardless of a change in temperature. The reference voltage generator includes a temperature-compensated...
7151365 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...
7129686 Apparatus and method for a high PSRR LDO regulator  
A tail current source is provided. The tail current source may be used in amplifiers, in an error amplifier of an LDO, or the like, to achieve high PSRR. The tail current source includes a first...
7122998 Current summing low-voltage band gap reference circuit  
A system and method is disclosed for providing a bandgap reference voltage generator that can successfully operate with a low operating voltage. Three current sources are controlled to provide same...
7106040 Adaptive voltage scaling power supply for use in a digital processing component and method of operating the same  
There is disclosed an adaptive voltage power supply that finely adjusts VDD to an optimum level. The adaptive voltage power supply comprises: 1) a first charging circuit capable of increasing a...
7095257 Fast low drop out (LDO) PFET regulator circuit  
A low dropout (LDO) PFET regulator circuit is disclosed for operating in two modes of operation. For higher supply voltage potentials the LDO PFET regulator circuit operates normally, as supply...
7092674 Multi-mode band-gap current reference  
A multi-mode band-gap current reference includes a band-gap current mode module and an adjustable current source module. The band-gap current module provides a band-gap reference current and a...
7091713 Method and circuit for generating a higher order compensated bandgap voltage  
A method and circuit are shown for generating a higher order compensated bandgap voltage is disclosed, in which a first order compensated bandgap voltage and a linearly temperature dependent...
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...
7071672 Method and circuit arrangement for generating an output voltage  
An output voltage is generated, in that an initializable current source is transferred into a current-conducting state by an initializing signal produced by an initializing unit, and then provides...
7064534 Regulator circuitry and method  
A regulator circuit and method are disclosed for a system. The regulator circuit may include a compare circuit for comparing a first supply voltage to a predetermined voltage level and generating...
7042205 Reference voltage generator with supply voltage and temperature immunity  
A reference voltage generator includes a first current source, an output current mirror, an output device, and a shunt device. The first current source generates a first current and has a first...
7039384 Low power band-gap current reference  
A low power supply band-gap current reference includes a 1 st P-N junction device, a 2 nd and P-N junction device, a 1 st current source, a 2 nd current source, a 1 st resistor, a 2 nd ...
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...
7023194 Low power and high accuracy band gap voltage reference circuit  
A band gap voltage reference circuit includes a high accuracy band gap (BG) circuit that generates a BG voltage potential V bgH . A low accuracy BG circuit includes a variable resistance and...
7019508 Temperature compensated bias network  
A method and apparatus for a temperature compensated bias network, such as may be embodied as an integrated circuit is disclosed. Embodiments provide for a wide range of desired temperature...
7015683 JFET switch select circuit  
A JFET switch select circuit including a first current mirror system including a first high current mirror circuit referenced to high rail voltage and a first low current mirror circuit referenced...
7009365 Systems and methods for control of vehicle electrical generator  
Systems, methods and devices are described for controlling a vehicle electrical generator. A regulator for controlling a generator in response to an input signal received from a control module...
7005838 Voltage generation circuit  
A differential amplifier is used to determine the level of an output voltage of a charge pump circuit, and is operated in the voltage follower mode with a reference voltage being an input thereto...
6979990 Reference voltage generator for frequency divider and method thereof  
A reference voltage generator, and a method thereof, supplies a reference voltage to a device that decides between first and second output levels based on the reference voltage. The reference...
6972550 Bandgap reference voltage generator with a low-cost, low-power, fast start-up circuit  
A bandgap voltage reference generator includes a bandgap voltage reference circuit and a fast startup circuit. The fast start-up circuit, which is cost-efficient and saves power consumption, can...
6930948 Semiconductor memory device having an internal voltage generation circuit for selectively generating an internal voltage according to an external voltage level  
An external high/low voltage compatible semiconductor memory device includes an internal voltage pad, an internal voltage generation circuit, and an internal voltage control signal generation...
6922045 Current driver and method of precisely controlling output current  
Disclosed is current driver circuit comprising a bandgap reference circuit for generating a fixed current and a current proportional to absolute temperature (PTAT), a temperature compensator for...
6894473 Fast bandgap reference circuit for use in a low power supply A/D booster  
A bandgap reference circuit includes a current generation circuit connected to a voltage generation circuit connected to a smart clamping circuit, and a discharge circuit connected to the current...
6876182 MOSFET current mirror circuit with cascode output  
A metal oxide semiconductor field effect transistor (MOSFET) current mirror circuit with a cascode output in which maximum operating ranges are achieved for the power supply voltage and cascode...
6873143 On-chip reference current and voltage generating circuits  
Provided is an on-chip reference current generating circuit for generating a reference voltage that can be digitally calibrated and is substantially not affected by changes in temperature and/or...
6861831 Voltage regulator  
A voltage regulator ( 10 ) is disclosed for producing a regulated voltage at a regulator output ( 30 ). The voltage regulator includes a reference voltage generator ( 12 ) arranged to provide a...
6859156 Variable bandgap reference and applications thereof  
A variable bandgap reference includes a fixed bandgap reference source and a supply voltage dependent voltage divider module. The fixed bandgap produces a fixed reference voltage. The supply...
6836104 Internal power supply voltage control apparatus having two internal power supply reference voltage generating circuits  
In an internal power supply voltage control apparatus, reference voltage generating circuit generates a reference voltage. A first internal power supply reference voltage generating circuit...
6791308 Internal power supply for an integrated circuit having a temperature compensated reference voltage generator  
The present invention provides a temperature-compensating reference voltage generator, including a temperature-compensating voltage divider, or variable voltage generator, for dividing an input...
6784651 Current source assembly controllable in response to a control voltage  
A controllable assembly of current sources includes several first output terminals, with a first transistor associated with each first output terminal, the current on each first output terminal...
6774711 Low power bandgap voltage reference circuit  
A bandgap voltage reference circuit that utilize a two-stage transconductance amplifier as a feedback control loop to improve the accuracy and stability of the output reference voltage without the...
6744304 Circuit for generating a defined temperature dependent voltage  
An electronic circuit for generating an output voltage has a defined temperature dependence, a bandgap circuit for generating a defined temperature-constant voltage and a temperature-dependent...
6734710 Circuit arrangement for pulse generation  
The invention relates to a circuit arrangement for pulse generation, having a capacitor, to which a charging current and a discharging current may be supplied in succession. To generate the...
6720755 Band gap reference circuit  
A band gap reference includes circuitry providing a reference voltage (VDIODE) at 1.0 volt or below to provide a stable reference for 1.3 volt or lower circuits, which would otherwise not function...
6693415 Current source  
A current source using a bandgap voltage circuit includes a current gain circuit between the output of the bandgap circuit and the current output transistor. On-off control is provided by a...
6683444 Performance reference voltage generator  
The invention relates to a reference voltage generator which comprises, arranged between two supply terminals ( 20, 21 ), an input stage ( 1 ) having a portion (R 0 ) proportional to the absolute...
6657480 CMOS compatible band gap reference  
A CMOS low noise band gap reference circuit outputs a substantially constant reference voltage V REF . The band gap reference circuit has an amplifier that includes a differential pair of bipolar...
6646496 Current control circuit  
A current control circuit for maintaining constant current characteristics with respect to power source potential fluctuations has a first resistor with one end connected to a source potential...
6642699 Bandgap voltage reference using differential pairs to perform temperature curvature compensation  
A bandgap reference that generates a temperature stable DC voltage by using a corrective current. The corrective current is generated by a series of differential pairs that are controlled by both...
Matches 51 - 100 out of 395 < 1 2 3 4 5 6 7 8 >