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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11/13/1991 | EP0455834A1 Sense amplifier control circuit |
11/13/1991 | EP0390859A4 Low power voltage clamp circuit |
11/12/1991 | US5065043 Biasing circuits for field effect transistors using GaAs FETS |
11/05/1991 | US5063343 Current pump structure |
11/05/1991 | US5063310 Transistor write current switching circuit for magnetic recording |
10/30/1991 | EP0454250A1 Reference generator |
10/30/1991 | EP0454243A1 Buffer circuit |
10/29/1991 | US5061907 High frequency CMOS VCO with gain constant and duty cycle compensation |
10/29/1991 | US5061862 Reference voltage generating circuit |
10/29/1991 | US5061861 Mos integrated circuit for driving light-emitting diodes |
10/22/1991 | US5059890 Constant current source circuit |
10/22/1991 | US5059826 Voltage threshold generator for use in diode load emitter coupled logic circuits |
10/22/1991 | US5059820 Switched capacitor bandgap reference circuit having a time multiplexed bipolar transistor |
10/22/1991 | US5059815 High voltage charge pumps with series capacitors |
10/17/1991 | DE4037822C1 Current supply source for HF range - uses transistors in circuit as current mirror, one formed as reference diode and other as source transistor |
10/17/1991 | DE4012174A1 Current dividing circuit - sub-divides input current into predetermined output magnitude |
10/16/1991 | EP0451870A2 Reference voltage generating circuit |
10/15/1991 | US5057792 Current mirror |
10/15/1991 | US5057721 Level shift circuit for controlling a driving circuit |
10/15/1991 | US5057707 Charge pump including feedback circuitry for eliminating the requirement of a separate oscillator |
10/15/1991 | US5057704 Semiconductor integrated circuit having substrate potential detecting circuit commonly used |
10/10/1991 | DE4039524A1 Substrate bias generator arrangement - has dual generators for run=up of power and stable supply states |
10/09/1991 | EP0450830A2 Voltage reference having steep temperature coefficient and method of operation |
10/09/1991 | EP0450797A1 Charge pump apparatus |
10/09/1991 | EP0450027A1 Method and device for compensating drift in a semiconductor element |
10/08/1991 | US5055719 Current conveyor circuit |
10/02/1991 | EP0449567A2 Positive to negative voltage translator circuit and method of operation |
10/02/1991 | EP0449441A1 Antisaturation circuit for a bipolar transistor |
10/02/1991 | EP0449264A2 Pulse signal generator and redundancy selection signal generator |
10/02/1991 | EP0449235A2 High efficiency charge pump circuit |
10/02/1991 | EP0448908A1 Method for generating a stable DC voltage and stabilized DC voltage source |
10/01/1991 | US5053640 Bandgap voltage reference circuit |
10/01/1991 | CA1290014C Ferroresonant three-phase constant ac voltage transformer |
09/24/1991 | US5051686 Bandgap voltage reference |
09/18/1991 | EP0446724A2 Current limiting method and apparatus |
09/18/1991 | EP0446595A2 A buffer circuit |
09/17/1991 | US5049807 All-NPN-transistor voltage regulator |
09/17/1991 | US5049806 Band-gap type voltage generating circuit for an ECL circuit |
09/17/1991 | CA1289202C Latch-up protection circuit for integrated circuits using complementarymos circuit technology |
09/10/1991 | US5047730 Operational amplifier having stable bias current providing means |
09/10/1991 | US5047707 Voltage regulator and method for submicron CMOS circuits |
09/10/1991 | US5047706 Constant current-constant voltage circuit |
09/10/1991 | US5047661 Superlattice precision voltage reference |
09/03/1991 | US5045773 Current source circuit with constant output |
09/03/1991 | US5045772 Reference voltage generator |
09/03/1991 | US5045732 Polygon circuit |
09/03/1991 | US5045716 Integrated circuit in complementary circuit technology comprising a substrate bias voltage generator |
08/28/1991 | EP0443239A1 Current mirror with base current compensation |
08/28/1991 | EP0443238A2 Precision switched current source |
08/22/1991 | WO1991012574A1 Current conveyor |
08/21/1991 | EP0442001A1 Comparator circuit |
08/20/1991 | US5041893 Semiconductor integrated circuit including an intrinsic MOS transistor for generating a reference voltage |
08/20/1991 | US5041739 Substrate potential generating circuit |
08/14/1991 | EP0441201A2 A substrate bias voltage detection circuit |
08/07/1991 | EP0440434A2 Constant voltage generating circuit |
08/06/1991 | US5038053 Temperature-compensated integrated circuit for uniform current generation |
07/31/1991 | EP0438655A2 ECL circuit for resistance and temperature bus drop compensation |
07/30/1991 | US5036218 Antisaturation circuit |
07/30/1991 | CA1287104C Level shifter for a power supply regulator in a television apparatus |
07/24/1991 | CN1013331B Voltage level conversion circuit |
07/23/1991 | US5034964 N:1 time-voltage matrix encoded I/O transmission system |
07/23/1991 | US5034677 Bias voltage supplying circuit |
07/23/1991 | US5034635 Positive to negative voltage translator circuit and method of operation |
07/23/1991 | US5034626 BIMOS current bias with low temperature coefficient |
07/23/1991 | US5034625 Semiconductor substrate bias circuit |
07/16/1991 | US5032774 Current sensing circuit for use with a current controlling device in a power delivery circuit |
07/09/1991 | US5030903 Voltage generator for generating a stable voltage independent of variations in the ambient temperature and of variations in the supply voltage |
07/09/1991 | US5030848 Precision voltage divider |
07/04/1991 | DE4037823A1 Working current generating circuit - has current determined by resistor in series with transistor emitter-collector path |
07/02/1991 | US5029295 Bandgap voltage reference using a power supply independent current source |
07/02/1991 | US5029282 Voltage regulator circuit |
07/02/1991 | US5029280 ECL circuit for resistance and temperature bus drop compensation |
06/27/1991 | WO1991009440A1 Current control circuit |
06/26/1991 | EP0433724A2 Voltage regulator with power boost system |
06/25/1991 | US5027250 Electronic circuit with a protection device against fluctuations in the supply battery voltage |
06/25/1991 | US5027054 Threshold dependent voltage source |
06/25/1991 | US5027053 Low power VCC /2 generator |
06/25/1991 | US5027016 Low power transient suppressor circuit |
06/25/1991 | US5027014 Translator circuit and method of operation |
06/25/1991 | US5027004 Circuit for regulating the base current of a semiconductor power device |
06/18/1991 | US5025204 Current mirror using resistor ratios in CMOS process |
06/11/1991 | US5023543 Temperature compensated voltage regulator and reference circuit |
06/11/1991 | US5023465 High efficiency charge pump circuit |
06/05/1991 | EP0430653A2 Diode load ECL circuit |
06/05/1991 | EP0430354A2 Detection circuit of the current in an MOS type power transistor |
05/30/1991 | WO1991007757A1 Sense amplifier control circuit |
05/29/1991 | EP0429198A2 Bandgap reference voltage circuit |
05/22/1991 | CN2077562U Resonance-type a.c manostat |
05/21/1991 | US5018041 Circuit for internal current limiting in a fast high side power switch |
05/21/1991 | US5017858 Constant-current regulated power circuit |
05/21/1991 | US5017817 Basic circuitry particularly for construction of multivalued logic systems |
05/16/1991 | WO1991006979A1 Method and device for compensating drift in a semiconductor element |
05/16/1991 | WO1991006839A1 Integratable temperature sensor circuit |
05/15/1991 | EP0427387A2 Apparatus for converting input signals into an output signal |
05/15/1991 | EP0302856B1 Improvements in ferroresonant constant-voltage transformers |
05/15/1991 | CN1051438A Source voltage control circuit |
05/14/1991 | US5015942 Positive temperature coefficient current source with low power dissipation |
05/14/1991 | US5015873 Semiconductor driver for producing switching and offset signals |
05/08/1991 | EP0426150A2 Constant voltage circuit |
05/08/1991 | DE3936773A1 Integratable temp. sensor with high sensitivity - contains current mirror circuits and voltage amplifier circuit contg. series resistor and transistor |