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)
09/1998
09/01/1998US5801582 Activatable/deactivatable circuit arrangement for producing a reference potential
09/01/1998US5801581 Comparison detection circuit
09/01/1998US5801580 Self-biased voltage-regulated current source
09/01/1998US5801570 Semiconductor intergrated circuit with MOS transistors compensated of characteristic and performance deviations and deviation compensation system therein
09/01/1998US5801524 Voltage controlled current source for low voltage applications
09/01/1998US5801523 Circuit and method of providing a constant current
08/1998
08/27/1998WO1998037620A1 Output voltage regulation of a power supply module
08/26/1998EP0860762A2 Circuit and method for generating a DC output voltage
08/26/1998EP0860054A2 Frequency synthesis circuit having a charge pump
08/25/1998US5798669 Temperature compensated nanopower voltage/current reference
08/25/1998US5798658 Source-coupled logic with reference controlled inputs
08/25/1998US5798637 Reference voltage generating circuit
08/20/1998WO1998036342A1 Heat protection
08/20/1998WO1998036341A1 Self-compensating geometry-adjusted current mirroring circuitry
08/19/1998EP0859469A2 A five volt output driver for a chip manufactured in a three volt process
08/18/1998US5796767 Driver circuit of light-emitting device
08/18/1998US5796296 Combined resistance-capacitance ladder voltage divider circuit
08/18/1998US5796295 Reference for CMOS memory cell having PMOS and NMOS transistors with a common floating gate
08/18/1998US5796294 Circuits for generating a current which is proportional to absolute temperature
08/18/1998US5796285 Voltage-limiting circuit with hysteresis comparator
08/18/1998US5796278 Circuitry for controlling load current
08/18/1998US5796244 Bandgap reference circuit
08/13/1998WO1998035283A1 Temperature set point circuit and method employing adjustment resistor
08/13/1998WO1998035282A1 Ratio correction circuit and method for comparison of proportional to absolute temperature signals to bandgap-based signals
08/13/1998DE19707423C1 Circuit for generating constant voltage supply from fluctuating input voltage supply for Zener circuit
08/12/1998EP0659310B1 Integrated mosfet resistance and oscillator frequency control, trim methods and apparatus
08/12/1998CN1190474A Circuit arrangement for producing DC current
08/11/1998US5793248 Providing an output current and powered from a supply voltage
08/11/1998US5793247 Constant current source with reduced sensitivity to supply voltage and process variation
08/11/1998US5793231 Current memory cell having bipolar transistor configured as a current source and using field effect transistor (FET) for current trimming
08/11/1998US5793194 Bias circuit having process variation compensation and power supply variation compensation
08/05/1998EP0856168A1 Reference voltage source with temperature compensation
08/05/1998EP0856167A1 Multi-stage current feedback amplifier
08/05/1998EP0725923B1 Two terminal temperature transducer having circuitry which controls the entire operating current to be linearly proportional with temperature
08/04/1998US5789972 Regulated reference voltage generator having feedback to provide a stable voltage
08/04/1998US5789906 Reference voltage generating circuit and method
07/1998
07/30/1998WO1998032490A1 Current and temperature compensated voltage reference
07/30/1998CA2278498A1 Current and temperature compensated voltage reference
07/28/1998US5787014 Method and apparatus for automatically controlling integrated circuit supply voltages
07/28/1998US5786972 Temperature-compensated voltage clamp with forced pass transistor voltage sharing
07/23/1998WO1998032062A1 Device and method for determining the size of a current
07/23/1998WO1998032061A1 Compensation network for pinch off sensitive circuits
07/21/1998US5783937 Reference voltage generator controlled as a function of temperature
07/21/1998US5783936 Temperature compensated reference current generator
07/21/1998US5783935 Reference voltage generator and method utilizing clamping
07/21/1998US5783934 CMOS voltage regulator with diode-connected transistor divider circuit
07/21/1998CA2072813C Soft switching boost and buck regulators
07/16/1998DE19737777A1 Decision circuit for switching to back-up power supply e.g. for sequence or run-off control unit, counter etc
07/14/1998US5781781 Computer system including a novel CMOS voltage regulator
07/14/1998US5781061 Current mirror circuit and signal processing circuit having improved resistance to current output terminal voltage variation
07/14/1998US5781060 Semiconductor integrated circuit device having a variable current source controlled by a shift register
07/14/1998US5781043 Direct current sum bandgap voltage comparator
07/14/1998US5781002 Anti-latch circuit for low dropout dual supply voltage regulator
07/14/1998US5780921 Bipolar transistor constant voltage source circuit
07/14/1998US5780904 Semiconductor integrated circuit device for obtaining extremely small constant current and timer circuit using constant current circuit
07/14/1998US5780821 Method of controlling food thawing and cooking operations of a microwave oven
07/08/1998EP0800720A4 Substrate clamp for non-isolated integrated circuits
07/07/1998US5777509 Apparatus and method for generating a current with a positive temperature coefficient
07/02/1998WO1998028674A1 High efficiency base current helper
07/01/1998EP0851585A1 Circuit for generating an electric signal of constant duration, said duration being independant of temperature and process variations
07/01/1998EP0851332A2 A voltage regulator
06/1998
06/30/1998US5774021 Merged transconductance amplifier
06/30/1998US5774014 Integrated buffer circuit which functions independently of fluctuations on the supply voltage
06/30/1998US5774013 Proportional to absolute temperature current source
06/30/1998US5773968 Internal voltage conversion circuit
06/30/1998US5773967 Voltage reference with testing and self-calibration
06/23/1998US5771198 Source voltage generating circuit in semiconductor memory
06/23/1998US5770969 Controllable decoupling capacitor
06/23/1998US5770965 Circuit and method of compensating for non-linearities in a sensor signal
06/23/1998US5770963 Flash memory with improved erasability and its circuitry
06/23/1998US5770962 BIAS circuit intended to determine the mean level of an AC voltage
06/23/1998US5770954 For producing a logic configuration of two complementary nodes
06/18/1998WO1998026487A1 Device including a thermally protected switching transistor
06/18/1998WO1998013978A3 Current distribution circuit having an additional parallel Dc-current sinking branch
06/18/1998DE19705338C1 Thermic protection circuit for smart power integrated circuit
06/17/1998CN1185215A Constant current source with an EEPROM cell
06/16/1998US5767736 Charge pump having high switching speed and low switching noise
06/16/1998US5767664 Bandgap voltage reference based temperature compensation circuit
06/10/1998EP0846998A2 Integrated circuit sensing and digitally biasing the threshold voltage of transistors and related methods
06/10/1998EP0846997A2 Integrated circuit actively biasing the threshold voltage of transistors and related methods
06/09/1998US5764097 Automatically biased voltage level converter
06/09/1998US5764042 Controlled power supply source
06/04/1998WO1998024015A1 Zero-current start-up circuit
06/03/1998CN2283275Y AC and DC mixed voltage stabilizing dc voltage stabilizing power supply
06/03/1998CN1183571A Power supply device, liquid crystal display device, and method of supplying power
06/02/1998US5760640 Between a first and second supply voltage
06/02/1998US5760639 Voltage and current reference circuit with a low temperature coefficient
06/02/1998US5760497 Charge pump circuit with multiple boost stages
06/02/1998US5758644 Oximeter sensor
05/1998
05/27/1998EP0844737A2 Input buffer circuit and bidirectional buffer circuit for plural voltage systems
05/27/1998CN2282700Y Multifunctional three-phase parameter voltage stabilizer
05/26/1998US5757714 Semiconductor memory device with on-chip boosted power supply voltage generator
05/26/1998US5757225 Voltage generation circuit that can stably generate intermediate potential independent of threshold voltage
05/26/1998US5757224 Current mirror correction circuitry
05/26/1998US5757175 Constant current generating circuit
05/26/1998US5757174 Current sensing technique using MOS transistor scaling with matched current sources
05/26/1998US5757170 Method and apparatus for reducing current supplied to an integrated circuit useable in a computer system
05/22/1998WO1998021635A1 Band-gap reference voltage source
05/22/1998WO1998010520A3 Frequency synthesis circuit having a charge pump
05/20/1998EP0842461A1 Circuitry for supplying the base bias voltage of current source transistors in bipolar ic circuits