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)
05/1991
05/08/1991DE3936392A1 Current stabilising circuit e.g. for amplifiers - has two transistor emitters coupled to reference point, and first transistor base linked to second transistor collector
05/07/1991US5013999 Voltage generating circuit using a Schottky barrier diode
05/07/1991US5013934 Bandgap threshold circuit with hysteresis
05/02/1991EP0425024A2 Circuit for limiting the output voltage of a monolithic semiconductor power device which drives a resonant load connected to a power supply
05/02/1991EP0424742A2 Floating output digital to analog converter
04/1991
04/24/1991EP0424264A1 Current source with low temperature coefficient
04/24/1991CN2075798U Dc signal source
04/18/1991WO1991005404A2 Current mirror
04/18/1991WO1991005301A1 Reference voltage distribution system
04/18/1991DE4001509C1 Integratable temp. sensor circuit - has circuit complementary to current mirror circuit contg. two FETs with reference potential node
04/17/1991EP0422798A2 Bipolar/CMOS regulator circuits
04/16/1991US5008609 Voltage generating circuit for semiconductor device
04/16/1991US5008586 Solid state current sensing circuit and protection circuit
04/09/1991US5006734 Bidirectional current limiting circuit
04/04/1991WO1991004473A1 Circuit for the detection of temperature threshold, of light and of unduly low clock frequency
04/03/1991EP0419821A2 Wide dynamic range current source circuit
04/03/1991EP0419819A1 Current mirror
04/03/1991CN2074474U Piezoresistive monostat for electric current resource
04/02/1991US5004986 Op-amp with internally generated bias and precision voltage reference using same
03/1991
03/26/1991US5003197 Substrate bias voltage generating and regulating apparatus
03/26/1991CA1282010C Inductive coupled power system
03/20/1991EP0418060A2 Temperature compensated voltage regulator and reference circuit
03/20/1991EP0418025A2 Current mirror having large current scaling factor
03/20/1991CN1050114A High speed cmos differential interface circuits
03/19/1991US5001482 BiCMOS digital-to-analog converter for disk drive digital recording channel architecture
03/19/1991US5001414 Voltage reference circuit with linearized temperature behavior
03/19/1991US5001362 BiCMOS reference network
03/16/1991CA2025415A1 Temperature compensated voltage regulator and reference circuit
03/13/1991EP0231204B1 Back bias generator
03/13/1991CN2073132U Energy-saving automatic a.c. voltage stabilizer for domestic electrical appliance
03/12/1991US4999567 Constant current circuit
03/12/1991US4999516 Combined bias supply power shut-off circuit
03/12/1991CA1281386C Accurate current conveyor
03/07/1991DE3929360A1 Low voltage current control circuit - for compensating voltage fluctuations in high current equipment
03/06/1991EP0415490A2 Circuit arrangement for power supply to a load
02/1991
02/27/1991EP0414482A2 Bias voltage supplying circuit
02/27/1991EP0414434A2 Semiconductor integrated circuit including an intrinsic MOS transistor for generating a reference voltage
02/27/1991EP0414029A2 Constant-current regulated power circuit
02/26/1991US4996446 Semiconductor device having a reverse bias voltage generator
02/19/1991US4994730 Current source circuit with complementary current mirrors
02/19/1991US4994729 Reference voltage circuit having low temperature coefficient suitable for use in a GaAs IC
02/19/1991US4994689 Semiconductor integrated circuit device
02/19/1991US4994688 Semiconductor device having a reference voltage generating circuit
02/19/1991CA1280471C Electrical supply
02/06/1991EP0411789A2 High speed CMOS differential interface circuits
02/06/1991EP0411657A1 Constant voltage circuit
02/06/1991EP0411201A1 Potential generator in an integrated semiconductor circuit
02/05/1991US4990847 Microcomputer
02/05/1991US4990846 Temperature compensated voltage reference circuit
02/05/1991US4990845 Floating current source
02/05/1991US4990797 Reference voltage distribution system
02/04/1991CA2022317A1 High speed cmos differential interface circuits
01/1991
01/31/1991DE4012298A1 Fine current source for high energising - has diode in parallel to base-emitter path of identical polarity transistor
01/23/1991EP0409571A2 Integrated constant current circuit with a BJT and a JFET
01/23/1991EP0409158A1 Substrate injection clamp
01/23/1991EP0408982A2 Overcurrent circuit breaker
01/22/1991US4987360 Self-contained rechargeable battery power source with voltage reducer
01/18/1991WO1991001594A1 Combined bias supply and power shut-off circuit
01/18/1991CA2064085A1 Combined bias supply and power shut-off circuit
01/16/1991EP0197965B1 A field effect transistor current source
01/15/1991US4985869 Semiconductor memory device with an improved substrate back-bias arrangement
01/09/1991EP0407170A2 Charge pump
01/08/1991US4984123 Latching switching device having current responsive release
01/08/1991US4983930 Current conveyor
01/08/1991US4983929 Cascode current mirror
01/03/1991DE3920279A1 Circuit generating constant output DC voltage - uses variable input voltage supplied to transistor, operating as series control
12/1990
12/27/1990CA1278341C Transistor base current regulator
12/25/1990US4980650 Current amplifier
12/19/1990EP0403195A1 Current mirror circuit
12/19/1990EP0402928A2 Circuit for internal current limiting in a fast high side power switch
12/19/1990EP0402383A1 Mos current mirror with high output impedance and compliance
12/19/1990CN2067848U Full-automatic ac voltage stabilizer
12/18/1990US4978905 MOS integrated circuit
12/18/1990US4978904 Semiconductor device
12/18/1990US4978868 Simplified transistor base current compensation circuitry
12/13/1990WO1990015378A1 Band-gap voltage reference with independently trimmable tc and output
12/11/1990US4977333 Power semiconductor device including an arrangement for controlling load current by independent control of a plurality of semiconductor elements
12/04/1990US4975649 Method and apparatus for sensing loss of regulation in a ferroresonant transformer
12/04/1990US4975632 Stable bias current source
12/04/1990US4975631 Constant current source circuit
11/1990
11/29/1990DE3926656A1 Halbleiter-temperaturdetektorschaltung Semiconductor temperature detecting circuit
11/28/1990EP0398897A1 Voltage transducer
11/27/1990US4973857 Current divider circuit
11/22/1990EP0398456A2 Circuit arrangement for the electrically isolated reception of binary electrical signals
11/21/1990CN1047150A Voltage regulator
11/20/1990US4972107 Sensor circuit configuration
11/20/1990US4972097 Reference voltage generating circuit in semiconductor device
11/14/1990EP0397408A1 Reference voltage generator
11/14/1990EP0396996A2 Bandgap threshold circuit with hysteresis
11/13/1990US4970452 Integrated circuit comprising a switchable current generator
11/13/1990US4970415 Circuit for generating reference voltages and reference currents
11/13/1990US4970413 VBB-feedback threshold compensation
11/08/1990DE3923630A1 Stromquellen-spannungsnachfuehrschaltkreis zur stabilisierung von bitleitungen Current source spannungsnachfuehrschaltkreis for stabilization of bit lines
11/07/1990EP0148857B1 Ion thruster power-processing unit
10/1990
10/31/1990EP0394805A2 Temperature-independent variable-current source
10/30/1990US4967140 Current-source arrangement
10/30/1990US4967139 Temperature-independent variable-current source
10/23/1990US4965510 Integrated semiconductor circuit
10/23/1990US4965466 Substrate injection clamp
10/23/1990CA1275457C Integrated circuit in complementary circuit technology comprising a substrate bias generator