Patents
Patents for G05F 3 - Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties (12,739)
02/2001
02/13/2001US6188268 Low side current sink circuit having improved output impedance to reduce effects of leakage current
02/13/2001US6188211 Current-efficient low-drop-out voltage regulator with improved load regulation and frequency response
02/07/2001EP1075086A1 Controlled charge pump circuit and phase locked loop circuit using the charge pump circuit
02/06/2001US6184745 Reference voltage generating circuit
02/06/2001US6184744 Internal power supply voltage generation circuit that can suppress reduction in internal power supply voltage in neighborhood of lower limit region of external power supply voltage
02/06/2001US6184743 Bandgap voltage reference circuit without bipolar transistors
02/06/2001US6184742 Current distribution circuit having an additional parallel DC-current sinking branch
02/06/2001US6184670 Memory cell voltage regulator with temperature correlated voltage generator circuit
02/01/2001WO2001008299A1 Low-voltage current mirror circuit
02/01/2001WO2001007977A1 Method of curvature compensation, offset compensation, and capacitance trimming of a switched capacitor band gap reference
02/01/2001DE19960244C1 Arrangement for trimming reference voltages in semiconducting chips enables rapid and cost-effective reference voltage trimming
02/01/2001DE19934723A1 Steuerbare Stromquellenschaltung und hiermit ausgestatteter Phasenregelkreis Controllable current source circuit and hereby equipped phase-locked loop
02/01/2001DE10022665A1 Semiconductor device has current drive circuit which passes current between power-supply node and internal voltage line, based on charging voltage of capacitor
01/2001
01/31/2001EP0943124A4 High impedance bias circuit for ac signal amplifiers
01/30/2001US6181196 Accurate bandgap circuit for a CMOS process without NPN devices
01/30/2001US6181194 Calibratable field effect transistors
01/30/2001US6181192 Constant voltage circuit comprising temperature dependent elements and a differential amplifier
01/30/2001US6181191 Dual current source circuit with temperature coefficients of equal and opposite magnitude
01/30/2001US6181142 Nonlinear current mirror for loop-gain control
01/30/2001US6181122 System and method for starting voltage and current controlled elements
01/30/2001US6181121 Low supply voltage BICMOS self-biased bandgap reference using a current summing architecture
01/24/2001EP1070283A1 A current compensating bias generator and method therefor
01/23/2001US6177831 Semiconductor integrated circuit with well potential control circuit
01/23/2001US6177830 High voltage charge pump using standard sub 0.35 micron CMOS process
01/23/2001US6177828 Charge pump circuit for a semiconductor memory device
01/23/2001US6177827 Current mirror circuit and charge pump circuit
01/23/2001US6177817 Compensated-current mirror off-chip driver
01/23/2001US6177789 Line driver for producing operating condition invariant signal levels
01/23/2001US6177788 Nonlinear body effect compensated MOSFET voltage reference
01/23/2001US6177785 Programmable voltage regulator circuit with low power consumption feature
01/18/2001WO2001004721A1 Power source
01/18/2001DE19930182A1 Bipolar/CMOS signal conversion circuit
01/16/2001US6175267 Current compensating bias generator and method therefor
01/16/2001US6175266 Operational amplifier with CMOS transistors made using 2.5 volt process transistors
01/16/2001US6175265 Current supply circuit and bias voltage circuit
01/16/2001US6175264 Charge pump for generating negative voltage without change of threshold due to undesirable back-gate biasing effect
01/16/2001US6175263 Back bias generator having transfer transistor with well bias
01/16/2001US6175226 Differential amplifier with common-mode regulating circuit
01/16/2001US6175224 Regulator circuit having a bandgap generator coupled to a voltage sensor, and method
01/11/2001WO2001002925A1 Current mirror arrangement
01/11/2001DE19930180A1 Switchable current source circuit with current mirror
01/09/2001US6172556 Feedback-controlled low voltage current sink/source
01/09/2001US6172555 Bandgap voltage reference circuit
01/09/2001US6172554 Power supply insensitive substrate bias voltage detector circuit
01/09/2001US6172495 Circuit and method for accurately mirroring currents in application specific integrated circuits
01/04/2001DE19930381A1 Stromspiegelanordnung Current mirror arrangement
01/04/2001DE19929171A1 Generating charge-constant, temp.-constant, temperature-proportional DC involves generating temp. constant and temp. proportional DC using external reference resistance
01/03/2001EP1065580A1 Voltage regulating circuit for a capacitive load
01/02/2001US6169456 Auto-biasing circuit for current mirrors
12/2000
12/27/2000EP1063578A1 Reference voltage generator with monitoring and start up means
12/26/2000US6166670 Self calibrating current mirror and digital to analog converter
12/26/2000US6166590 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
12/26/2000US6166589 Reference voltage generator circuit for an integrated circuit device
12/26/2000US6166588 Power supply circuit
12/26/2000US6166587 CMOS circuit for generating a current reference, the circuit comprising a transistor in a weak inversion region
12/26/2000US6166530 Current-Limited switch with fast transient response
12/26/2000US6166529 Voltage-current conversion circuit
12/22/2000CA2311069A1 Reference voltage generator with monitoring and start up means
12/19/2000US6163468 Start up circuits and bias generators
12/19/2000US6163206 Semiconductor integrated circuit device having recovery accelerator for changing bias circuit from standby mode without malfunction
12/19/2000US6163205 Charge pump
12/14/2000WO2000076069A2 Calibration techniques for a precision relaxation oscillator integrated circuit with temperature compensation
12/13/2000EP1058870A1 Internal cmos reference generator and voltage regulator
12/12/2000US6160441 Sensors for measuring current passing through a load
12/12/2000US6160439 Current feed control circuit and electronic appliance using the same
12/12/2000US6160393 Low power voltage reference circuit
12/12/2000US6160392 Start-up circuit for voltage reference generator
12/12/2000US6160391 Reference voltage generation circuit and reference current generation circuit
12/12/2000US6160390 Method and apparatus for error current compensation
12/12/2000US6160387 Power transistor current sensing and limiting apparatus
12/06/2000EP1057245A1 A boosting circuit with supply-dependent gain
12/06/2000EP1057091A1 Current mirror circuit
12/05/2000US6157335 Voltage generating circuit
12/05/2000US6157245 Exact curvature-correcting method for bandgap circuits
12/05/2000US6157180 Power supply regulator circuit for voltage-controlled oscillator
11/2000
11/30/2000WO2000072445A1 Stable voltage reference circuit
11/30/2000WO2000072103A1 Low power voltage reference with improved line regulation
11/28/2000US6154018 High differential impedance load device
11/28/2000US6154017 Temperature/voltage compensation circuit
11/28/2000US6154001 Anti-glitch circuit for voice-coil-motor servo operation in disk drive systems
11/23/2000WO2000070421A1 Low voltage current sources and methods
11/23/2000DE19961500A1 Constant voltage circuit has series circuit formed by connecting resistances and series circuit formed by connecting resistance, temp.-dependent semiconducting element and correction element
11/21/2000US6151251 Memory cell integrated structure with corresponding biasing device
11/21/2000US6150874 Circuit layout and process for generating a supply DC voltage
11/21/2000US6150872 CMOS bandgap voltage reference
11/21/2000US6150871 Low power voltage reference with improved line regulation
11/21/2000US6150870 Adjustable substrate voltage applying circuit of a semiconductor device
11/21/2000US6150867 Integrated device for switching systems with filtered reference quantities
11/21/2000US6150835 Method and apparatus for fast production programming and low-voltage in-system writes for programmable logic device
11/21/2000US6150806 Controlled current source for accelerated switching
11/21/2000US6150805 Self-canceling start-up pulse generator
11/21/2000US6150799 Power-supply circuit supplied by at least two different input voltage sources
11/16/2000WO2000069070A1 Circuit arrangement and optical read/write device including the circuit arrangement
11/15/2000EP0789865B1 Output control circuit for a voltage regulator
11/15/2000CN1273450A Switch regulator
11/14/2000US6147550 Methods and apparatus for reliably determining subthreshold current densities in transconducting cells
11/14/2000US6147548 Sub-bandgap reference using a switched capacitor averaging circuit
11/14/2000US6147529 Voltage sensing circuit
11/08/2000EP1050104A1 A current generator for delivering a reference current of which the value is proportional to the absolute temperature
11/07/2000US6144588 Monolithically integrated generator of a plurality of voltage values
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