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)
04/1997
04/08/1997US5619450 Drive circuit for flash memory with improved erasability
04/08/1997US5619166 Active filtering method and apparatus
04/08/1997US5619164 Pseudo ground line voltage regulator
04/08/1997US5619163 Bandgap voltage reference and method for providing same
04/08/1997US5619160 Control circuit for setting a bias source at partial stand-by
04/08/1997US5619125 Voltage-to-current converter
04/08/1997US5619124 Reference voltage generator in a semiconductor integrated device
04/08/1997US5619123 Power supply circuit for non-threshold logic circuit
04/08/1997US5619115 Charging and discharging integration circuit for alternately charging and discharging a capacitor
04/03/1997DE4345312C2 Voltage supply circuit for semiconductor device
04/02/1997EP0766163A2 Circuit for generating a bias voltage
04/01/1997US5617064 Active resistor for stability compensation
04/01/1997US5617057 Pass transistor voltage control circuit
04/01/1997US5617056 Base current compensation circuit
04/01/1997US5617049 Pulse signal generator and redundancy selection signal generator
04/01/1997US5617017 Output circuit
03/1997
03/25/1997US5614867 Current follower with zero input impedance
03/25/1997US5614850 Current sensing circuit and method
03/25/1997US5614816 Low voltage reference circuit and method of operation
03/25/1997US5614815 Constant voltage supplying circuit
03/19/1997EP0763790A2 Level shifter capable of stably producing a level shifted voltage
03/18/1997US5612645 Dynamic MOSFET threshold voltage controller
03/18/1997US5612614 Current mirror and self-starting reference current generator
03/18/1997US5612613 Reference voltage generation circuit
03/18/1997US5612611 Switching regulator with dyssymetrical differential input stage
03/12/1997EP0762635A2 Current driving circuit with shoot-through regulation
03/12/1997EP0762259A1 Bias circuit for setting the average level of an alternating voltage
03/11/1997US5610550 Intermediate potential generator stably providing an internal voltage precisely held at a predeterminded intermediate potential level with reduced current consumption
03/11/1997US5610506 Voltage reference circuit
03/11/1997US5610486 Current mirror circuit used in a coil driver circuit of a brushless DC motor
03/06/1997DE19635909A1 Sequential feedback control system for electronic ballast
03/05/1997EP0760555A1 Current generator circuit having a wide frequency response
03/05/1997CN1144582A Signal-receiving and signal-processing unit
03/04/1997US5608670 Flash memory with improved erasability and its circuitry
03/04/1997US5608348 Binary programmable current mirror
03/04/1997US5608314 Incremental output current generation circuit
02/1997
02/26/1997EP0759588A2 Circuit arrangement for delivering a constant current
02/26/1997EP0759229A1 Low distortion differential transconductor output current mirror
02/26/1997EP0759228A1 Continuous time programmable analog block architecture
02/26/1997EP0759226A1 Active resistor for stability compensation
02/19/1997EP0758499A1 Method and apparatus for providing an ultra low power regulated negative charge pump
02/18/1997US5604428 Device for generating intermediate voltages
02/18/1997US5604427 Current reference circuit using PTAT and inverse PTAT subcircuits
02/18/1997US5604425 Power limiting regulator
02/13/1997WO1997005696A1 Fully differential output cmos power amplifier
02/13/1997WO1997005537A1 Circuitry for supplying the base bias voltage of current source transistors in bipolar ic circuits
02/13/1997CA2228387A1 Circuit arrangement for supplying the base bias voltage of current source transistors in bipolar ic circuits
02/13/1997CA2201367A1 Fully differential output cmos power amplifier
02/12/1997EP0758108A2 Current mirror arrangement
02/11/1997US5602495 Apparatus for providing an output voltage with substantially identical rising and falling characteristics
02/11/1997US5602466 Dual output temperature compensated voltage reference
02/11/1997US5602464 Bidirectional power converter modules, and power system using paralleled modules
02/06/1997WO1997004373A1 A voltage reference arrangement, a voltameter, a battery voltage detection arrangement, and a wireless communication device
02/06/1997WO1997004326A1 A circuit provided with facilities for iddq-testing of a bias generator
02/04/1997US5600235 Bipolar cascadable circuit configuration for signal limitation and field intensity detection
01/1997
01/29/1997EP0756223A1 Reference voltage and/or current generator in integrated circuit
01/29/1997EP0756221A2 Method and apparatus for controlling the tension in circuits for transport vehicles
01/29/1997EP0756220A1 Charge pump circuit with improved features
01/29/1997CN1141698A Signal-receiving and signal-processing unit
01/28/1997US5598122 Voltage reference circuit having a threshold voltage shift
01/28/1997US5598095 Switchable current source for digital-to-analog converter (DAC)
01/28/1997US5598094 Current mirror
01/23/1997WO1997002517A1 Multi-stage current feedback amplifier
01/21/1997US5596297 Output driver circuitry with limited output high voltage
01/21/1997US5596265 Band gap voltage compensation circuit
01/16/1997WO1997001810A1 Circuit arrangement for current transformation
01/16/1997DE19523329A1 Schaltungsanordnung zur Stromtransformation Circuit arrangement for current transformation
01/15/1997EP0753239A1 Mos circuit with dynamically reduced threshold voltage, as for use in an output buffer of a hearing aid amplifier
01/15/1997EP0753217A1 Signal-receiving and signal-processing unit
01/14/1997US5594390 Reduced area, first order R-C filters using current conveyors
01/14/1997US5594382 Constant voltage circuit
01/14/1997US5594326 Sub-rail voltage regulator with low stand-by current and high load current
01/07/1997US5592419 Flash memory with improved erasability and its circuitry
01/07/1997US5592119 Half power supply voltage generating circuit for a semiconductor device
01/07/1997US5592076 Base current supply circuit for multiple current sources
01/07/1997US5592010 Semiconductor device
01/02/1997EP0751451A1 Reference voltage generator, having a double slope temperature characteristic, for a voltage regulator of an automotive alternator
12/1996
12/31/1996US5589794 Dynamically controlled voltage reference circuit
12/31/1996US5589792 Resistor programmable temperature switch
12/27/1996EP0750244A1 Negative voltage generating charge pump circuit
12/24/1996US5587655 Constant current circuit
12/24/1996US5586908 Safety unit for an electric 3-phase circuit
12/19/1996WO1996041247A1 Circuit and method for regulating a voltage
12/19/1996WO1996041138A1 Light source with adjustable wavelength for an oximeter
12/19/1996CA2637855A1 Optical sensor including information element
12/18/1996EP0748535A1 Improved supply voltage detection circuit
12/17/1996US5585765 Low power RC oscillator using a low voltage bias circuit
12/17/1996US5585712 Current source with supply current minimizing
12/12/1996WO1996039652A1 Integrated circuit temperature sensor with a programmable offset
12/11/1996EP0748047A1 Integrated buffer circuit
12/11/1996EP0747800A1 Circuit for providing a bias voltage compensated for P-channel transistor variations
12/11/1996EP0747799A1 Transistor programmable voltage reference generator
12/11/1996EP0747713A2 Circuit for measuring the load current of a power semiconductor device with a load on the source or drain side
12/10/1996US5583464 Resistor circuit for integrated circuit chip using insulated field effect transistors
12/04/1996EP0745923A2 Voltage regulator with load pole stabilization
12/04/1996EP0745921A1 Transistor current generator stage for integrated analog circuits
12/03/1996US5581209 For an integrated circuit
12/03/1996US5581174 Band-gap reference current source with compensation for saturation current spread of bipolar transistors
11/1996
11/28/1996WO1996037814A1 Constant current source with an eeprom cell
11/28/1996DE19518728A1 Konstantstromquelle mit einer EEPROM-Zelle Constant current source to an EEPROM cell