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)
09/1993
09/02/1993WO1993017492A1 Current detecting circuit
09/01/1993EP0557739A1 A thermally dependent self-modifying voltage source
08/1993
08/31/1993US5241261 Thermally dependent self-modifying voltage source
08/31/1993CA1321816C Bandgap voltage reference circuit with an npn current bypass circuit
08/24/1993US5239256 Reference voltage generating circuit for a semiconductor device formed in a semiconductor substrate which generates a reference voltage with a positive temperature coefficient
08/24/1993US5239208 Constant current circuit employing transistors having specific gate dimensions
08/21/1993WO1993017377A1 Reference voltage generator for dynamic random access memory
08/19/1993WO1993016427A1 Voltage regulator with high gain cascode mirror
08/19/1993DE4204437A1 Photovoltaic thermal energy generation system for domestic hot water supply - uses series circuit of semiconductor power diodes supplied with photovoltaic energy providing heat output
08/18/1993EP0555539A2 Stable voltage reference circuit with high Vt devices
08/11/1993EP0466717B1 Precision reference-voltage source
08/10/1993US5235520 Integrated circuit having a function for generating a constant voltage
08/05/1993WO1993009599A3 Analog-to-digital converter and method of fabrication
08/03/1993US5233289 Voltage divider and use as bias network for stacked transistors
08/03/1993US5233236 Method and device for compensating drift in a semiconductor element
07/1993
07/28/1993EP0552964A2 Reference circuit
07/21/1993EP0551906A1 Switchable MOS-current mirror
07/20/1993US5229711 Reference voltage generating circuit
07/20/1993US5229710 Cmos band gap reference circuit
07/20/1993US5229708 Integrable shunt regulator
07/14/1993EP0550680A1 Cmos voltage reference with stacked base-to-emitter voltages
07/13/1993US5227714 Voltage regulator
07/13/1993US5227670 Electronic switch with very low dynamic "on" resistance utilizing an OP-AMP
07/06/1993US5225716 Semiconductor integrated circuit having means for suppressing a variation in a threshold level due to temperature variation
07/01/1993DE4243907A1 Back bias voltage generating circuit for CMOS semiconductor device - has oscillator circuit delivering control signals for pair of pumping stages in parallel
06/1993
06/30/1993EP0549381A1 Current mirror with low reproduction error
06/30/1993EP0548524A2 Comparator start-up arrangement
06/29/1993US5223744 Semiconductor integrated circuit with circuits for generating stable reference potential
06/29/1993US5223743 Adaptive current generating transconductance circuit
06/24/1993WO1993012525A1 Flash memory improved in erasing characteristic, and circuit therefor
06/23/1993EP0138823B2 A current source circuit having reduced error
06/22/1993USRE34290 Constant voltage generating circuit
06/22/1993US5221889 Bidirectional current mirrors and method for bidirectional current conduction
06/22/1993US5221888 Current limited temperature responsive circuit
06/22/1993US5221864 Stable voltage reference circuit with high Vt devices
06/15/1993US5220534 Substrate bias generator system
06/15/1993US5220273 Reference voltage circuit with positive temperature compensation
06/09/1993EP0545266A2 Semiconductor integrated circuit
06/08/1993US5218238 Bias voltage generation circuit of ecl level for decreasing power consumption thereof
06/08/1993US5218235 Power stealing circuit
06/01/1993US5216291 Buffer circuit having high stability and low quiescent current consumption
05/1993
05/26/1993EP0543056A1 Temperature dependent current generator
05/18/1993US5212458 Current mirror compensation circuit
05/18/1993US5212440 Quick response CMOS voltage reference circuit
05/13/1993WO1993009599A2 Analog-to-digital converter and method of fabrication
05/13/1993WO1993009487A1 Tunable voltage reference circuit
05/12/1993EP0541226A2 Scaling circuit
05/11/1993US5210446 Substrate potential generating circuit employing Schottky diodes
05/05/1993EP0539593A1 Semiconductor device and built-in power circuit
05/05/1993CN1020510C Current-source arrangement
05/04/1993US5208527 Reference voltage generator with programmable thermal drift
05/04/1993US5208488 Potential detecting circuit
05/04/1993CA1317344C Bicmos positive supply voltage reference
04/1993
04/28/1993EP0539137A2 Amplifier
04/28/1993EP0539136A2 Voltage generating device
04/27/1993US5206581 Constant voltage circuit
04/20/1993US5204612 Current source circuit
04/14/1993EP0536693A2 Voltage regulator
04/13/1993US5202588 Substrate bias circuit
04/13/1993US5202587 MOSFET gate substrate bias sensor
04/07/1993EP0536063A1 Precision current generator
04/06/1993CA1315845C Non-saturating magnetic amplifier controller
04/01/1993WO1993006541A1 Device for generating intermediate voltages
03/1993
03/31/1993EP0534804A1 Class-D BICMOS hearing aid output amplifier
03/30/1993US5198747 Liquid crystal display driver and driver method
03/30/1993US5198701 Current source with adjustable temperature variation
03/25/1993DE4131170A1 Vorrichtung zur erzeugung von zwischenspannungen Apparatus for generating intermediate voltages
03/25/1993DE4130245A1 Bandgapschaltung Bandgap circuit
03/18/1993WO1993005513A1 Circuit for controlling the programming voltage of programmable memories
03/18/1993WO1993005465A1 Band-gap circuit
03/17/1993EP0531615A2 Temperature sensor circuit and constant-current circuit
03/11/1993DE3348378C2 Variable temp. compensating circuit
03/10/1993EP0530500A1 Current mirror circuit
03/09/1993US5193198 Method and apparatus for reduced power integrated circuit operation
03/04/1993WO1993004423A1 Method for temperature-compensating zener diodes having either positive or negative temperature coefficients
03/02/1993US5191279 Current limiting method and apparatus
02/1993
02/25/1993DE4226047A1 Eine interne spannungsversorgung erzeugender schaltkreis An internal power supply generating circuit
02/23/1993US5189600 Combined power supply for main and stand-by power
02/23/1993US5189317 Circuit for limiting the output voltage of a monolithic semiconductor power device which drives a resonant load connected to a power supply
02/23/1993US5189316 Stepdown voltage generator having active mode and standby mode
02/17/1993EP0527513A2 Input buffer circuit
02/16/1993US5187429 Reference voltage generator for dynamic random access memory
02/16/1993US5187397 Integrated semiconductor circuit with improved boost operation speed
02/16/1993US5187386 Low standby current intermediate dc voltage generator
02/09/1993US5185538 Output circuit for semiconductor integrated circuits having controllable load drive capability and operating method thereof
02/03/1993EP0525679A2 Writing control circuit employed in non-volatile semiconductor memory device
02/02/1993US5184061 Voltage regulator for generating a constant reference voltage which does not change over time or with change in temperature
02/02/1993US5184031 Semiconductor integrated circuit
02/02/1993US5184030 Back bias generating circuit
01/1993
01/27/1993EP0524498A2 Constant-current source
01/26/1993US5182529 Zero crossing-current ring oscillator for substrate charge pump
01/26/1993US5182462 Current source whose output increases as control voltages are balanced
01/20/1993EP0524154A2 A voltage regulating integrated circuit having high stability and low power consumption features
01/20/1993EP0523893A2 Termination circuit in an ECL array of a row bias generator
01/20/1993EP0523266A1 Integratable current mirror
01/19/1993US5180967 Constant-current source circuit having a mos transistor passing off-heat current
01/19/1993US5180966 Current mirror type constant current source circuit having less dependence upon supplied voltage
01/19/1993US5180928 Constant voltage generation of semiconductor device
01/12/1993US5179539 Large scale integrated circuit having low internal operating voltage
01/12/1993US5179489 Method and means for suppressing geomagnetically induced currents