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)
03/1990
03/06/1990US4906915 Voltage to absolute value current converter
03/06/1990US4906914 Intermediate potential generation circuit for generating a potential intermediate between a power source potential and ground potential
03/06/1990US4906868 Logic circuit using bipolar complementary metal oxide semiconductor gate and semiconductor memory device having the logic circuit
03/06/1990US4906863 Wide range power supply BiCMOS band-gap reference voltage circuit
02/1990
02/28/1990EP0356020A1 A bias voltage generator for static CMOS circuits
02/28/1990EP0355918A1 Voltage-to-current converter
02/27/1990US4905056 Superlattice precision voltage reference
02/27/1990US4904885 Substrate bias circuit having substrate bias voltage clamp and operating method therefor
02/21/1990EP0354932A1 Voltage sources.
02/20/1990US4902959 Band-gap voltage reference with independently trimmable TC and output
02/14/1990EP0354735A2 Constant voltage generating circuit for selectively generating a constant voltage at a high-speed
02/14/1990EP0354547A1 Regulator of power source for superconducting circuit
02/13/1990US4901002 Current source having a wide range of output voltages
02/07/1990CN2052553U Regulated power supply of step-up switch of transistor
02/06/1990USH743 Low current voltage reference
02/06/1990US4899152 Method and apparatus for temperature compensating a digital to analog converter
01/1990
01/31/1990EP0353039A1 Compensated current sensing circuit
01/31/1990EP0352494A1 A reduced turn-off current draw starter circuit for a stabilized band-gap voltage source in integrated circuits
01/30/1990US4897614 Current mirror circuit
01/30/1990US4897595 Band-gap reference voltage circuit with feedback to reduce common mode voltage
01/30/1990US4897594 High gain driver circuit and method
01/30/1990US4897565 Logic circuit using Schottky barrier FETs
01/30/1990US4897555 Current split circuit having a digital to analog converter
01/24/1990EP0352044A1 Transistor base current compensation circuitry
01/24/1990EP0135504B1 Substrate bias control circuit and method
01/23/1990US4896121 Current mirror for depletion-mode field effect transistor technology
01/23/1990US4896094 Bandgap reference circuit with improved output reference voltage
01/17/1990EP0350857A1 Fully-differential reference voltage source
01/16/1990US4894622 Integrated current-mirror arrangement comprising vertical transistors
01/16/1990US4894561 CMOS inverter having temperature and supply voltage variation compensation
01/11/1990WO1990000326A1 Electronic devices and signal comparator using same
01/10/1990EP0349837A2 An electronic circuit with a protection device against fluctuations in the supply battery voltage
01/09/1990US4893069 Ferroresonant three-phase constant AC voltage transformer arrangement with compensation for unbalanced loads
01/03/1990EP0246251B1 Installation for providing a filtered and stabilized mains voltage
12/1989
12/28/1989EP0296193A4 Ttl compatible cmos input circuit.
12/26/1989US4890052 Temperature constant current reference
12/26/1989US4890051 CMOS input buffer stable for the variation of a power supplying voltage
12/26/1989US4890011 On-chip substrate bias generating circuit having substrate potential clamp and operating method therefor
12/26/1989US4890010 Matched current source serial bus driver
12/20/1989EP0346978A1 Integrated current-mirror arrangement comprising vertical transistors
12/20/1989CN1038191A Voltage level conversion circuit
12/12/1989US4887201 Self-oscillating inverter with adjustable frequency
12/12/1989US4886984 Prohibition circuit upon power-on event
12/06/1989EP0232378B1 Integrated-circuit having two nmos depletion mode transistors for producing a stable dc voltage
12/05/1989US4885585 Ramp generator reset circuit
12/05/1989US4885525 Voltage controllable current source
11/1989
11/29/1989EP0343177A1 Digital-to-time converter.
11/28/1989US4884161 Integrated circuit voltage regulator with transient protection
11/28/1989US4883976 Low power dual-mode CMOS bias voltage generator
11/23/1989EP0342814A2 Mos integrated circuit for driving light-emitting diodes
11/23/1989EP0342581A1 Voltage level conversion circuit
11/21/1989US4882533 Linear integrated circuit voltage drop generator having a base-10-emitter voltage independent current source therein
11/21/1989US4882532 Active overvoltage control for inductive load driving
11/16/1989WO1989011124A1 Voltage control circuit
11/07/1989US4879524 Constant current drive circuit with reduced transient recovery time
11/07/1989US4879506 Shunt regulator
11/07/1989US4879505 Temperature and power supply compensation circuit for integrated circuits
11/02/1989EP0339738A1 Current divider circuit
11/02/1989EP0339164A1 Self-regulated transformer-inductor with air gaps
10/1989
10/18/1989EP0337747A1 Circuit for producing a constant voltage
10/18/1989EP0337362A2 Power semiconductor device
10/18/1989EP0337314A1 Master slave buffer circuit
10/17/1989US4875018 Current mirror circuit assembly
10/17/1989US4874967 Low power voltage clamp circuit
10/17/1989US4874964 Current generating circuit
10/10/1989US4873668 Integrated circuit in complementary circuit technology comprising a substrate bias generator
10/04/1989EP0335194A1 Process for limiting the output current of a supply circuit
10/03/1989USRE33076 Air flow meter circuit with temperature compensation circuit
09/1989
09/27/1989CN2045133U Adjustable terminal apparatus of dc regulated power supply
09/26/1989CA1261010A1 Current-mirror-biased pre-charged logic circuit
09/21/1989WO1989008948A1 Non-saturating magnetic amplifier controller
09/20/1989EP0333494A2 Semiconductor driver for producing switching and offset signals
09/20/1989EP0332714A1 Temperature compensated current source
09/19/1989US4868485 Three-phase current output circuit with temperature compensating function
09/19/1989US4868484 Reference voltage generator using a charging and discharging circuit
09/19/1989US4868483 Power voltage regulator circuit
09/19/1989US4868429 Circuit arrangement for generating a limited current
09/19/1989US4868416 FET constant reference voltage generator
09/19/1989US4868415 Voltage level conversion circuit
09/13/1989EP0332548A1 Stabilized generator for the delivery of a threshold voltage for a MOS transistor
09/12/1989US4866495 High power MOSFET and integrated control circuit therefor for high-side switch application
09/12/1989US4866399 Noise immune current mirror
09/06/1989EP0331253A1 Current source with a wide range of output voltages
09/05/1989US4864373 Semiconductor circuit device with voltage clamp
08/1989
08/29/1989US4862415 Complementary semiconductor device reducing latch-up phenomenon
08/29/1989CA1258881A1 Self-regulated transformer with gaps
08/24/1989WO1989007793A1 Curvature correction of bipolar bandgap references
08/24/1989WO1989007792A1 Mos current mirror with high output impedance and compliance
08/23/1989EP0329247A1 Band-gap reference voltage arrangement
08/23/1989EP0329232A1 Stabilized current and voltage reference sources
08/22/1989US4859929 Current mirror having a high output voltage
08/22/1989US4859928 CMOS comparator bias voltage generator
08/15/1989US4858186 A circuit for providing a load for the charging of an EPROM cell
08/15/1989US4857823 Bandgap voltage reference including a process and temperature insensitive start-up circuit and power-down capability
08/09/1989EP0326955A1 Bicmos voltage reference generator
08/09/1989EP0326952A2 Bipolar-CMOS interface circuit
08/09/1989CN2042647U Multi-function tv set voltage-stabilizing protector
08/08/1989US4855624 Low-power bipolar-CMOS interface circuit
08/08/1989US4855618 MOS current mirror with high output impedance and compliance
08/01/1989US4853647 Current gain compensation arrangement