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)
06/1999
06/02/1999EP0835483B1 Circuit arrangement for current transformation
06/02/1999DE19755130C1 Pufferschaltung Buffer circuit
06/02/1999CN1218560A Method and device for temperature dependent current generation
06/01/1999US5909128 FETs logic circuit
05/1999
05/25/1999US5907505 Power source circuit device used for a semiconductor memory
05/25/1999US5907255 Dynamic voltage reference which compensates for process variations
05/20/1999WO1999025067A1 Phase locked loop charge pump circuit
05/20/1999WO1999024801A1 Generator for generating voltage proportional to absolute temperature
05/19/1999EP0916187A1 Voltage controlled variable current reference
05/18/1999US5905452 Current source cell apparatus for digital/analog converter
05/14/1999WO1999016172A3 Temperature compensation in electronic devices
05/12/1999EP0915409A1 Electronic circuit, semiconductor device, electronic equipment, and clock
05/12/1999EP0915408A1 High voltage regulator and corresponding voltage regulation method
05/12/1999EP0915407A1 Temperature correlated voltage generator circuit and corresponding voltage regulator for a single power memory cell, particularly of the FLASH-type
05/12/1999EP0914707A1 Charge pump circuit architecture
05/12/1999EP0842461B1 Circuitry for supplying the base bias voltage of current source transistors in bipolar ic circuits
05/11/1999US5903513 Semiconductor integrated circuit device with clock frequency invariant voltage step-down circuit
05/11/1999US5903183 Constant voltage circuit and constant voltage/constant current changeover circuit
05/11/1999US5903177 Compensation network for pinch off voltage sensitive circuits
05/11/1999US5903141 Current reference device in integrated circuit form
05/11/1999US5903012 Process variation monitor for integrated circuits
05/06/1999EP0913756A2 A voltage regulator
05/06/1999EP0913755A2 Voltage converter
05/06/1999EP0913754A1 Switchable DC voltage regulation circuit
05/04/1999US5900777 For use in a machine
05/04/1999US5900774 Direct current differential base voltage generating circuit
05/04/1999US5900773 Precision bandgap reference circuit
05/04/1999US5900772 Bandgap reference circuit and method
05/04/1999US5900765 Bias circuit
05/04/1999US5900725 Circuit arrangement for current transformation
04/1999
04/28/1999EP0911978A1 Generation of temperature compensation low noise symmetrical reference voltages
04/28/1999EP0910820A1 Low voltage bias circuit for generating supply-independent bias voltages and currents
04/28/1999EP0602197B1 Integrated cmos semiconductor circuit
04/28/1999CN1215508A Device including a thermally protected switching transistor
04/27/1999US5898335 High voltage generator circuit
04/27/1999US5898324 High voltage detector circuit
04/27/1999US5898297 Differential high speed driver for low voltage operation
04/27/1999US5898235 Integrated circuit with power dissipation control
04/21/1999EP0910002A1 Method for providing a current of high accuracy
04/14/1999EP0907916A1 Apparatus and method for generating a current with a positive temperature coefficient
04/14/1999EP0904545A3 Current and voltage sensing
04/13/1999US5894215 Shunt voltage regulator utilizing a floating reference voltage
04/07/1999CN1213229A Variable current source
04/06/1999US5892647 Overcurrent detection circuit
04/06/1999US5892402 High precision current output circuit
04/06/1999US5892400 Amplifier using a single polarity power supply and including depletion mode FET and negative voltage generator
04/06/1999US5892394 Intelligent bias voltage generating circuit
04/06/1999US5892392 Device for setting a bias source at stand-by
04/06/1999US5892390 Internal power supply circuit with low power consumption
04/06/1999US5892388 Low power bias circuit using FET as a resistor
04/06/1999US5892356 High impedance large output voltage regulated cascode current mirror structure and method
04/06/1999US5892355 Current and voltage-sensing
04/06/1999US5892336 Circuit for energizing cold-cathode fluorescent lamps
04/06/1999US5892260 SOI-type semiconductor device with variable threshold voltages
04/01/1999WO1999016172A2 Temperature compensation in electronic devices
04/01/1999WO1999015943A1 High impedance bias circuit for ac signal amplifiers
04/01/1999WO1998048334A9 Precision bandgap reference circuit
04/01/1999CA2270938A1 High impedance bias circuit for ac signal amplifiers
03/1999
03/31/1999EP0905710A1 Voltage regulator with voltage drop compensation for a programming circuitry of non-volatile electrically programmable memory cells
03/31/1999EP0905598A1 Switchable current source circuit
03/31/1999EP0904576A1 Power supply circuit
03/31/1999EP0904545A2 Current and voltage sensing
03/30/1999US5889431 Current mode transistor circuit method
03/30/1999US5889430 Current mode transistor circuit
03/30/1999US5889426 Integrated circuit device having a bias circuit for an enhancement transistor circuit
03/30/1999US5889395 Integrated low voltage regulator for high capacitive loads
03/30/1999US5889394 Temperature independent current reference
03/23/1999US5886932 Composite mode substrate voltage generation circuit for dynamic random access memory
03/23/1999US5886571 Constant voltage regulator
03/23/1999US5886568 Open-loop MR biasing circuit with high power supply and common mode rejection
03/23/1999US5886566 High voltage charge transfer stage
03/23/1999US5886546 Current/voltage converter, sense amplifier and sensing method using same
03/23/1999US5886511 Temperature insensitive foldback network
03/18/1999DE19813707A1 Voltage level conversion circuit
03/16/1999US5883798 Voltage/current conversion circuit
03/16/1999US5883544 Integrated circuit actively biasing the threshold voltage of transistors and related methods
03/16/1999US5883543 Circuit configuration for generating a reference potential
03/16/1999US5883507 Low power temperature compensated, current source and associated method
03/16/1999US5883504 Power supply unit
03/16/1999US5883501 Power supply circuit
03/16/1999US5883479 BEMF rectification during power off to prevent parasitic effect
03/11/1999WO1998058301A3 A circuit for controlling an ac/dc buzzer load
03/10/1999EP0901058A1 Two stage current mirror
03/10/1999EP0900419A1 A method and device for temperature dependent current generation
03/10/1999EP0610430B1 Analog-to-digital converter and method of fabrication
03/10/1999CN1210338A Conductor integrated circuit device with improved characters at low voltage ranges
03/09/1999US5881015 Internal constant voltage control circuit for memory device
03/09/1999US5881014 Semiconductor memory device with a voltage down converter stably generating an internal down-converter voltage
03/09/1999US5880625 Temperature insensitive constant current generator
03/09/1999US5880623 Power supply control techniques for FET circuits
03/09/1999US5880619 Low power precision voltage splitter
03/09/1999US5880593 On-chip substrate regulator test mode
03/09/1999US5880582 Current mirror circuit and reference voltage generating and light emitting element driving circuits using the same
03/09/1999US5880579 VCO supply voltage regulator for PLL
03/03/1999EP0899645A2 Field effect transistors
03/03/1999EP0899644A2 Bias voltage stabilizing circuit
03/02/1999US5877985 Intermediate voltage generating circuit and nonvolatile semiconductor memory having the same
03/02/1999US5877928 Electronic circuit device
03/02/1999US5877651 Semiconductor memory device that can have power consumption reduced
03/02/1999US5877617 Load current supply circuit having current sensing function