| 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) |
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| 03/22/1994 | US5296752 Current memory cell |
| 03/09/1994 | EP0585918A1 A voltage stabilizing circuit |
| 03/09/1994 | EP0585755A1 Apparatus and method providing a MOS temperature compensated voltage reference for low voltages and wide voltage ranges |
| 03/08/1994 | US5293112 Constant-current source |
| 03/02/1994 | EP0584435A1 High impedance,high ratio current mirror |
| 03/01/1994 | US5291446 VPP power supply having a regulator circuit for controlling a regulated positive potential |
| 03/01/1994 | US5291123 Precision reference current generator |
| 03/01/1994 | US5291122 Bandgap voltage reference circuit and method with low TCR resistor in parallel with high TCR and in series with low TCR portions of tail resistor |
| 03/01/1994 | US5291121 Rail splitting virtual ground generator for single supply systems |
| 02/23/1994 | EP0583991A1 Device for biasing an RF device operating in quasi-linear modes with temperature compensation |
| 02/22/1994 | US5289425 Semiconductor integrated circuit device |
| 02/22/1994 | US5289137 Single supply operational amplifier and charge pump device |
| 02/22/1994 | US5289112 Light-emitting diode array current power supply including switched cascode transistors |
| 02/22/1994 | US5289111 Bandgap constant voltage circuit |
| 02/22/1994 | US5289108 Stable direct voltage generator |
| 02/17/1994 | WO1994003850A2 Bootstrapped current and voltage reference circuit utilizing an n-type negative resistance device |
| 02/17/1994 | DE4302221C1 Integrated current source circuit using bipolar pnp transistors - uses current source connected to emitter of one transistor coupled in circuit with three transistors |
| 02/15/1994 | US5287054 Attenuating voltage follower circuit |
| 02/09/1994 | EP0582072A1 Temperature compensated voltage regulator having beta compensation |
| 02/02/1994 | CN2155038Y Auxilary current supply device for switch voltage-stabilizing power source |
| 02/01/1994 | US5283762 Semiconductor device containing voltage converting circuit and operating method thereof |
| 02/01/1994 | US5283537 Current mirror circuit |
| 01/27/1994 | DE4224587A1 Control voltage generator for flashing direction indicators - stabilises current through protective resistance irrespective of which of two alternative voltages of power supply is operative |
| 01/27/1994 | DE4224584A1 High precision reference voltage source - has closed control loop in which current from band-gap element acts as control current over current mirror |
| 01/26/1994 | EP0579652A1 Circuit for generating very low currents |
| 01/25/1994 | US5281906 Tunable voltage reference circuit to provide an output voltage with a predetermined temperature coefficient independent of variation in supply voltage |
| 01/25/1994 | US5281873 Sense amplifier control circuit |
| 01/25/1994 | US5281866 Reference voltage circuit allowing fast power up from low power standby condition |
| 01/20/1994 | WO1994001890A1 Integrated cmos semiconductor circuit |
| 01/18/1994 | US5280235 Fixed voltage virtual ground generator for single supply analog systems |
| 01/18/1994 | US5280234 Voltage regulator circuit |
| 01/13/1994 | DE4223295C1 Reference voltage raising circuit - uses operational amplifier controlling pair of current sources to provide temp.-independent output reference potential |
| 01/12/1994 | CN1080742A Reference voltage generator with cmos transistor |
| 01/11/1994 | US5278491 Constant voltage circuit |
| 01/05/1994 | DE4221575A1 Integrierter CMOS-Halbleiterschaltkreis Integrated CMOS semiconductor circuit |
| 01/04/1994 | US5276651 Voltage generating device generating a voltage at a constant level and operating method thereof |
| 01/04/1994 | US5276648 Testing method for a semiconductor memory device |
| 01/04/1994 | US5276646 High voltage generating circuit for a semiconductor memory circuit |
| 12/29/1993 | EP0576008A2 Boost voltage generating circuit |
| 12/29/1993 | EP0354932B1 Voltage sources |
| 12/21/1993 | US5272432 DAC current source with stabilizing bias |
| 12/21/1993 | US5272392 Current limited power semiconductor device |
| 12/15/1993 | EP0483246A4 Combined bias supply and power shut-off circuit |
| 12/14/1993 | US5270583 Impedance control circuit for a semiconductor substrate |
| 12/08/1993 | EP0573240A2 Reference voltage generator |
| 12/08/1993 | EP0573009A1 Semiconductor device |
| 12/08/1993 | CN2149066Y Multi-function remote-control voltage-regulating apparatus |
| 11/30/1993 | US5267201 High voltage boosted word line supply charge pump regulator for DRAM |
| 11/30/1993 | US5266886 CMOS power supply voltage limiter |
| 11/30/1993 | US5266885 Generator of reference voltage that varies with temperature having given thermal drift and linear function of the supply voltage |
| 11/30/1993 | US5266843 Substrate slew circuit |
| 11/30/1993 | US5266842 Charge pump circuit for a substrate voltage generator |
| 11/25/1993 | WO1993023925A1 Schmitt-trigger |
| 11/25/1993 | WO1993023876A1 Current mirror with at least one pnp transistor |
| 11/25/1993 | DE4216684A1 Stromspiegel mit wenigstens einem pnp-Transistor Current mirror with at least one pnp transistor |
| 11/24/1993 | EP0570820A2 Switchable current source circuit and the use of such a circuit in a phase detector |
| 11/24/1993 | EP0570597A1 Flash memory improved in erasing characteristic, and circuit therefor |
| 11/23/1993 | US5264808 Substrate potential adjusting apparatus |
| 11/23/1993 | US5264785 Voltage-controlled resistance element with superior dynamic range |
| 11/23/1993 | US5264784 Current mirror with enable |
| 11/18/1993 | EP0491783B1 Circuit for the detection of temperature threshold, of light and of unduly low clock frequency |
| 11/18/1993 | DE4215444A1 IC with analog and digital stages - has portion for level matching analog stage to digital stage, with coupling capacitor |
| 11/18/1993 | DE4215423A1 Schmitt-Trigger Schmitt trigger |
| 11/16/1993 | US5262989 Circuit for sensing back-bias level in a semiconductor memory device |
| 11/16/1993 | US5262713 Current mirror for sensing current |
| 11/09/1993 | US5260646 Low power regulator for a voltage generator circuit |
| 11/02/1993 | US5258703 Temperature compensated voltage regulator having beta compensation |
| 11/02/1993 | US5258702 Precision reference voltage source |
| 11/02/1993 | US5258663 Reference voltage generating circuit having reduced power consumption |
| 10/28/1993 | WO1993021573A1 Voltage reduction circuit |
| 10/26/1993 | US5257039 Non-impact printhead and driver circuit for use therewith |
| 10/20/1993 | EP0565806A1 Accurate MOS threshold voltage generator |
| 10/19/1993 | US5255233 Non-volatile semiconductor memory device equipped with sense amplifier circuit for discriminating small differential voltage level |
| 10/19/1993 | US5254880 Large scale integrated circuit having low internal operating voltage |
| 10/14/1993 | DE4305850A1 Reference voltage generator e.g. for DRAM integrated circuit - has constant current source and negative feedback circuit with resistors and second FET in series between amplifier output and feed potential |
| 10/13/1993 | EP0565179A2 A semiconductor device including protection means |
| 10/13/1993 | EP0565116A2 Bias circuit for photodiode |
| 10/12/1993 | US5253201 Writing control circuit employed in non-volatile semiconductor memory device |
| 10/12/1993 | US5252910 Current mirror operating under low voltage |
| 10/12/1993 | US5252909 Constant-voltage generating circuit |
| 10/12/1993 | US5252908 Apparatus and method for temperature-compensating Zener diodes having either positive or negative temperature coefficients |
| 10/06/1993 | EP0564225A2 Voltage generation circuits and methods |
| 10/06/1993 | EP0564071A1 Reference voltage source |
| 09/29/1993 | EP0562916A1 Device for generating reference voltages |
| 09/29/1993 | EP0562683A2 A display device having a display tube including a cold cathode |
| 09/29/1993 | EP0376953B1 Electronic devices and signal comparator using same |
| 09/28/1993 | US5249226 Apparatus for controlling a current supply device |
| 09/28/1993 | US5248932 Current mirror circuit with cascoded bipolar transistors |
| 09/23/1993 | DE4214403A1 Bezugsstromgeneratorschaltung Reference current generator circuit |
| 09/23/1993 | DE4214106A1 Bezugsspannungsgeneratorschaltung Reference voltage generator circuit |
| 09/22/1993 | EP0561469A2 Enhancement-depletion mode cascode current mirror |
| 09/22/1993 | EP0561456A1 Frequency synthesizer using a fast switching current mirror and device using such a synthesizer |
| 09/21/1993 | US5247581 Class-d bicmos hearing aid output amplifier |
| 09/21/1993 | US5247241 Frequency and capacitor based constant current source |
| 09/21/1993 | US5247208 Substrate bias generating device and operating method thereof |
| 09/14/1993 | US5245273 Bandgap voltage reference circuit |
| 09/08/1993 | EP0559336A2 Apparatus for controlling a current supply device |
| 09/07/1993 | US5243554 Writable analog reference voltage storage device |
| 09/07/1993 | US5243231 Supply independent bias source with start-up circuit |
| 09/07/1993 | US5243228 Substrate bias voltage generator circuit |